TW472013B - Power unit for motorcycle - Google Patents

Abstract

To provide a power unit for a motorcycle which allows a large bank angle of a vehicle body and has a compact size. A power unit 7 for a motorcycle is located at a lower portion of a vehicle body. The axis C1 of a crankshaft 31 extending in the longitudinal direction of the vehicle body is positioned in the vicinity of a vehicle body center C0. The axis C2 of a cylinder 45 extends from the axis C1 of the crankshaft 31 in orthogonal relationship thereto and is inclined with respect to the vehicle body center C0 so as to be raised on the right side of the vehicle body. The axis C5 of a center shaft 93 of a transmission 91 in a power transmitting device 90 extends in the longitudinal direction of the vehicle body at a left upper position with respect to the axis C1 of the crankshaft 31. The front end of the center shaft 93 of the transmission 91 is positioned on the front side of the rear end of the crankshaft 31.

Description

472013 V. Description of the invention (1) [Detailed description of the present invention] [Technical field to which the present invention belongs] The invention of this patent application is related to the power pack installed on a motorcycle, and the details are related to the power that is configured below the car body The arrangement structure of the device's internal combustion engine and power transmission device. [Known technology] It has been conventionally known that in order to reduce the center of gravity of a motorcycle body, the power pack is arranged below the pedals (refer to Japanese Patent Laid-Open No. 6 0-9 2 9 2 9). The crankshaft of the single-cylinder internal combustion engine of the two-wheeled vehicle power unit is arranged so that the axis points in the longitudinal direction of the vehicle body, and the cylinders of the internal combustion engine extend horizontally in the left-right direction of the vehicle body. The output shaft that transmits the power of the internal combustion engine to transmissions such as clutches and transmissions on the rear wheels is arranged on the same shaft as the crankshaft. [Problems to be Solved by the Invention] In the power set of the previous two-wheeled vehicle, the left and right widths of the center of the left and right sides of the vehicle body are substantially equal, and the cylinder head on the right and the transmission housing on the left are horizontal. Since the direction is extended, the inclination angle of the vehicle body is limited, and there is a problem that it is difficult to increase the inclination angle. In addition, the crankshaft and the output shaft of the transmission are on the same axis, so the space occupied by the power pack in front of and behind the vehicle body is lengthened. In view of this, the present invention can increase the tilt angle of the vehicle body, and solves the problem of providing a compact power pack of a motorcycle. [Means for solving problems and effects of the present invention]

89112064.ptd Page 6 V. Description of the invention (2) According to the scope of patent application of the present invention, item 1 describes a crankshaft with an axis pointing in the front-rear direction of the vehicle body, and a, the internal combustion engine is used to power the rear wheels. The power set of the power transmission wheel of the vehicle body is configured as follows: the crankshaft I is located near the automatic two center, and the cylinder of the internal combustion engine should be arranged such that the upper A is disposed on the axis of the vehicle body to the left and right of the axis of the crankshaft. —: = J slope of the gas turbine cylinder, the above power transmission device should be arranged so that == upward and upward = the axis of the central axis of the speeder is opposite to the axis of the crankshaft. And point toward the vehicle body toward the second wheel of the vehicle body; the front end of the moving = is more oriented than the rear end of the crankshaft: the position of Λ in the front-back body is wider, the line is toward the crankshaft axis of the left-right direction, the cylinder The central axis of the white speed governor is inclined, and the front and rear directions of the power transmission device are configured. The corner can be made big to get closer to the car: two ΐ: The front end of the central shaft of the transmission is tighter than the curved 2 power pack. The length of the front and rear of the group can be shortened. According to item 2 in the scope of patent application,

89112 commanded. Ptd $ 7 the square position of the body, so it is more than the rear end of the crankshaft. 5. Description of the invention (3) The two-wheeled vehicle described in item 1 passes the above-mentioned power transmission device ', and above, after the above__ ; ^ ^ ^ " t! f ^ ^ ^ ± g-, ± of the drive station of the power structure, the above crankshaft is located under the axis of the moving glaze according to the scope of the patent application. Invention, Qu car price Λ home. "Below s, because & while ensuring that the two-axis drive ratio is equal to the driving force at the same time as the height ': the driving weight of the rear wheel axle reduces the weight ^. The low center of gravity of the power pack makes this whole, The so-called " body center " means / pass auto: front and rear left auto two-wheeler vehicle, in which, i; [within the width of the left and right direction of the implementation of the invention. Below, consider Figures 1 to 4 to explain the embodiment of the present invention In the present invention, 3 = 1; er: a reference drawing of the remote construction mode, and FIG. 1 is a left view of a motorized one-wheeler 1 equipped with a yoke type. Since: 1: yong bolt 2 The connected front frame 3 and the rear frame 4 are composed of the main and the front of the longitudinal cymbal L. A front suspension mechanism capable of suspending the front wheel 5 is provided with a running mechanism of the wheel 5, and a front rear of the rear frame 4 is provided with a drive mechanism. < ^ Power pack 'The rear part of the rear frame 4 is equipped with a rear suspension mechanism that suspends the rear wheels 6. The upper part of the rear frame 4 is equipped with a seat 8. The two-wheeled motor vehicle 1 is installed from front to back: front fender Θ, Front cover =, foot pedal 11, frame body cover 12, and rear fender 13. The foot pedal is equipped with left and right— 1 4. The side cover under the seat frame 8 of the body 2 was installed to cover Shu helmet or the like can be placed bin 5. Shu,

Fifth invention description (4) Front suspension mechanism position% & The right side of the upper and lower ^ wheels is connected to the support shaft, the boom 16 at the front and lower end of the front frame 3 is connected, and the other _ 2 swingable swing arm 1 The 6 and-ends are connected to the buffer device 17 of the front frame 3 with the car 18 摆 swung through the main bolt pin. Through the left and right direction ^ pull ^ holding 方向 19 is mounted on the front end of the swing arm 16 and can support freely rotatable wheels 5 'mounted on the axle holder 19 axle 20 steering wheel mechanism is installed in ancient times. Support and free green The head tube 21 of the front upper end of the women's clothing 21 The control arm 23 ^ y running column 22, the arm 19a installed at the lower end of the running column 22 is connected: the man rod ^ the longitudinal arm 23 is connected and the other-end is held with the axle The frame structure is independent of each other. As for the right side, the operating mechanism and the front suspension machine will be described as :::: St. The suspension holes 2 6 of the bracket 2 5 and the front ends of the later sections are respectively strengthened. The front end of the 42L and the cylinder head 43-the tubular bearing bushes 46 (see Figure 2) of the separating rod are respectively inserted into the rear frame; 4 on the ~ '-the front of the power group 7 can be freely supported on the safety In terms of / _ ΑΑ, the rear of the power pack 7 = the rear of the frame 4 through the buffering device U, so that the power pack 7 can swing up and down when it encounters a ten-way approach. Operation i ::: The center of gravity of the vehicle body 'arranges the power pack 7 below the vehicle body. An example of f of the crankshaft 31, the axis of the two tubular bearing shells 46 contains the internal combustion engine 30 2: :: when it is cold and scattered. At a position lower than the upper end surface of the foot pedal 11, the height of the upper end surface of the power pack 7 other than the foot pedal 11 is approximately equal to the height of the extended surface above the foot pedal 11.

V. Description of the invention (5) The power pack 7 is composed of an internal combustion engine 30 y 2 ^ ~ ~ The above final reduction gear = is equipped with a planetary gear transmission 9 丨 and a spark ignition type 4 ^ force transmission device 90. The air-cylinder water-cooled internal combustion engine under the internal combustion engine cover 12 is disposed in a frame body, and a flexible air duct 33, which is a throttle body on the right side of the vehicle body, is connected to the downstream end portion and the upstream end portion connected thereto. The suction pipe 35 of the throttle valve body 34 is installed with a suction pipe 43 connected to the air pipe 35, and the iron = the shooting valve 36 at the lower part of the foot pedal 11 is connected. The fuel injection valve 36 is supplied with fuel from an exhaust muffler 39 provided. An exhaust pipe 38 is arranged on the right side of the vehicle body. In addition: 39 is installed on the front end of the cooling fan house crankcase 42 connected to the cylinder head 4 3 exhaust port. The fan cover 40 is installed on the radiator 41, and cold air is blown onto the radiator 41. The heat-dissipating power transmission device 90 is changed; the output of the drive shaft n 1 k 91 of the mountain speed machine 110 is recognized by being equipped with a final reduction driving the rear wheel 6. The axle drive mechanism of the rear wheel 6 is transmitted to the axle of the rear wheel 6. Referring to FIG. 2 and FIG. Among them, Figure 2 is the outline of the key components along the center of the figure: = cylinder head 4 3 section when gears. Figure of teeth. Fig. 3 is a schematic view of a cow, and Fig. 3 is a cross section taken along the line I 11-I 11 in Fig. 2. The internal combustion engine 30 is constituted by a crankshaft. Crankshaft: Both the cylinder head 43 and the cylinder head cover 44 are grouped in sequence. At the same time, the two parts are 42L for the axis C1 of the crankshaft 31 of the internal combustion engine 30 for the dagger and the mesh 2. Sleeve 42U and square. The upper crankcase separating surface “appears toward the upper right of the car body.

89l12064.ptd Page 10

The axis Π of the crankshaft 31 is tilted toward the upper right of the vehicle body, and the gas red is mounted on the mounting surface B facing the cylinder 45 by the mounting surface B on the cylinder head 43 side. The upper and lower crankcases 42U and 42L also serve as a transmission-equipped machine that also recognizes the power of the crankshaft 31 and the power transmission device 90 of the rear wheel 6. Part of the factory. The front end of the lower crankcase 42L is mounted on the outside = two tubular bearing shells 46 are inserted into the suspension bolts for supporting the power pack 7 '1': the wide bracket 25. The component parts of the tubular bearing bush 46 are covered with a solid surface, and the elastic portion 2 is formed by a cylindrical portion 46a of 2L to form an integrally-molded structure, an outer periphery = two outer 7 minutes 4 6 a, and an inner peripheral surface of a cylindrical rubber. A metal cannula 46c and the like are inserted into the inner peripheral surface of the elastic member 46b while the inner peripheral surface is fixed to the inner peripheral surface. Inserted in the cylinder head 43. ... the official bearing bush 46 is also curved, with its axis π pointing to the front and rear of the vehicle body in a so-called vertical orientation. The pair of main shaft bearings 49 and 50 support the curved cloth 49 and 50 respectively on the upper and lower crankcases 42u. The second door: the semi-cylindrical concave of the main shaft, the curved surface A of the bismuth "forms the U concave U, the axis π of the crankshaft 31 is arranged in the same position, and the position of the axis C1 of the crankshaft 31 in the left-right direction ± center The left side of C0, 卄 蚩 w ^ said] only put on the body in the vehicle body ~ ~ and sin near the center of the vehicle body ⑶. The left and right sides of the axis C1 & from the position. Also near the body center c0 is It is very suitable that the maximum inclination angle of the leftward and rightward body is substantially equal. The α κ rightward and through ends are articulated with the freely sliding piston 0 of the cylinder 45 cylinder center, and the large M is connected to the crankpin 31b of the crankshaft 31. 3. Drive the crankshaft 31 for the reciprocating piston 47 3. M rod 8. Install on the opposite side of the living base by means of glaze.

472UD V. Description of the invention (7) The vibration occurring when the balance weight 3 1 is set to suppress the backward movement of the piston 47 and the conical link 48 Now, the relationship between the separation surface A and the mounting surface b will be explained in detail. On the reference plane orthogonal to the axis opening of the crankshaft 31 and at the axis C2 of 45, the plane A and the above-mentioned reference plane are included, and the 6/1 gas axis 31 of the cylinder 45 of the cylinder C1 and the above-mentioned reference plane are separated. On the intersection point of the parent line and the angle from the crankshaft (that is, the reference deviation perpendicular line, the angle is an acute angle. The angle point formed by the straight line of the clock and the vertical line is also an acute angle. The axis C2 degrees are basically equal. Installation The angle formed by the plane B and the two base angles and the reference offset line, that is, the extension line of the same spring of α, and therefore, the intersection angle A of the separation plane A and the reference plane is small, and the mounting angle 6 is smaller than the reference. The angles formed by the intersection of the plane and the axis C2 of the reference plane of j ^ 4 and 5 are called "two 0 and the values of the above angles r 'α, / 5, and r. The design tilt is considered: degrees / 3. Make the appropriate settings. 'At the same time, the result' For the separation surface "Zhuang B, which is inclined from the bottom right to the upper left, the installation surface β is more inclined than the separation surface A to the horizontal direction. The inner plane and some including the mounting surface B. The bottom of the bag intersects. 卞 向 在 气45 — Cylinder head 43, in addition to the intake and exhaust ports, it also includes the official booster port, and the exhaust pipe is connected to the double-acting piston type 轧: each port is connected to the combustion chamber formed below the cylinder master 43 The valve 36 is aligned with the intake port to inject the fuel and air mixture: = injection. The spark plug 51 that ignites the mixture is close to the combustion chamber and fixed to 472013. V. Description of the invention (8) 43 The cylinder head 43 and the upper crankshaft 4 2 U are respectively provided with holes at the rear parts. These holes are formed by semi-cylindrical grooves formed respectively on the mounting surface B of the upper crankcase 42U and the cylinder head 43. The supercharging cylinder 52a of the shell of the supercharger 52 is inserted into this hole. The axis C 3 points to the camshaft 5 3 arranged in the front-back direction of the vehicle body, and the cylinder head 4 3 and the upper crankshaft 4 are supported by a pair of bearings 5 4 and 5 5. 2 U and can rotate freely. Bearings 54 and 55 are respectively held in a semi-cylindrical groove formed by the mounting surface β of the upper crankshaft 42U and the cylinder head 43. The axis C 3 of the camshaft 5 3 is located on the women's surface B. The camshaft 53 is so arranged that the projection Compared with the internal combustion engine of the axle, the axial height of the cylinder 45 can be suppressed to a lower level, and the size of the power group 7 in the left-right direction is reduced. As shown in FIG. 3, the main bearing 49 on the front side of the crankshaft 31 An alternator 56 is installed at the front end of the front end. The rotor 56a of the generator 56 is fixed to the crankshaft 31 by a nut 57 at the front end of the crankshaft 31. A cooling fan 58 for supplying cooling air for the radiator 41 is installed by a bolt 59. The rotor 56a of the generator 56. A first drive gear 60 and a second drive gear 61 are sequentially mounted on the rear face of the main bearing 50 on the rear side of the crankshaft 31, and rotate together with the crankshaft 31. A mounting hole coaxial with the crankshaft 31 is formed on the rear end surface of the crankshaft 31, and the hollow drive shaft 62a of the oil pump 62 is inserted into the mounting hole to rotate together with the crankshaft 31. The oil pump 62 belongs to a trochoid gear pump, and utilizes the inner space of the casing formed by the joint surfaces of the upper and lower gear boxes 42U and 42L with the transmission case 92, and the rotor 62b is rotationally driven by the drive shaft 62a.

89112064.ptd Page 13 472013 V. Description of the invention (9) The lower crankcase 4 2 L The oil oil system 6 that accumulates on the bottom 6 2 The suction passage 6 formed by the transmission case 9 2 The 3 "suction of oil from the oil system 6 2" The oil passages and oil pipes installed through the crankcase & 2 and the transmission case 92 are supplied to the camshaft 53, the central shaft 93 of the transmission 91, and the respective bearings, respectively. At the same time, the discharged oil is supplied to the two main bearings 49, 50 of the crankshaft 31 and the friction parts between the crank pin 3 1b and the large end of the connecting rod 48 through the inside of the hollow drive shaft 62a. The first driving gear 60 is meshed with the large gear 65, and the large gear 65 and the idle shaft 64 rotate together. As will be described later, since the idler wheel 64 is also a balance shaft, the number of teeth of the 'large gear 65 is equal to the number of teeth of the first drive gear 60, making it the same as 3: 3. In order to rotate and drive the camshaft 53, it is meshed with the camshaft pinion 67 and the pinion 66, and the pinion 66 and the large tooth W " shaft. With the help of a series of gear series 60, 6, 5, 6, 6, 7, the camshaft 53 rotates once every two revolutions of the crankshaft 31. Ability: = = Combining splines, Qu Qizhuang moves. Camshaft 53 is; The pressurizing piston 52b of Π2 performs reciprocating operation. Each of the described oil circuits protruding from the middle part of the unfinished middle part can supply lubricating oil for the extended m part of the crankshaft 52c, which will be described later. Increased. Accordingly, the cam sleeve: 3 blades :: the end of the supercharger 52 side of the hollow portion. The camshaft 53 is provided with two & crankshafts 52c to rotate together. (Not shown) and booster valve 2: open drive intake valve 68, exhaust valve (picture cam. The intake valve 68 consists of the intake, intake cam, exhaust cam, and booster rocker 7) by the rocker 72 to achieve according to 胄 rocker 7! To achieve the valve opening action, inhalation of the second breast cam ^ # 72 pull-down action is achieved by __ brother 1 rocker 70. And inhalation room 89112064.ptd 14Page 472013 V. Description of the invention (10) 6 8 —The exhaust valve is controlled by the exhaust second rocker—the output is controlled by the exhaust cam connected to the exhaust valve, and the exhaust second rocker The boost valve 69 is opened by pushing up the connecting rod 75 ΐ: = the lower rod 74 of the first rocker completes the valve opening action, and the second pressure of the second pressure is shown in the first pressure of the second pressure. The lever 73 realizes the push-up action. The booster cam is connected to a person's booster 3. The shock absorber can detect the cam pump 53 = the check position is enabled, and the internal combustion required for fuel injection time control is output; however, its axis C4 points to the vehicle body. The idler shaft 64 arranged in the front-rear direction is round = divided into a large cylindrical portion 64a and a small cylindrical portion 64b. The large cylindrical portion ... and the same portion 64b are mounted on the upper and lower crankcases 42u and 42L. 49 bearings are supported, and I rotate freely. The bearings 77, 78 and the curved main bearing 50: the sample / knife is kept in a semi-cylindrical groove formed by the upper and lower crankcases and the separating surface a, empty. The axis C4 of the rotating shaft 64 is located at ΓΛ. The separating plane A is inclined at an angle α with respect to the center of the vehicle body. Therefore, the axis C4 of the idle shaft 64 is located below the axis C1 of the crankshaft 31 and is located on the stone side of the center of the vehicle body. Inside, a casing 7 9 a of the cold head water pump 7 9 is provided from the inner circumferential surface of the large cylindrical portion 64 a to the diameter II a. The casing 7 9 a of the water pump 7 9 is fixed to the outer cover 79 b of the cooling water pump 79 with a liquid seal. The cover 79b is connected to the water guide pipe 80 of the radiator tank on the outlet side of the radiator. The air cylinder 45 forms a drainage hole communicating with the cooling water pump 79 row 7 side and the cooling water jacket formed around the cylinder core (see FIG. 2).

472013

The casing is formed by the casing 79a and the outer cover 79b, and is supported on the bottom of the outer cover 79 from the end of the rotating shaft of the fleshy meat;; = "=: η, which can rotate freely. The cooling water pump 79 has 3 ::, and the shaft 79c becomes The whole blade 79d, the shaft portion of the blade 79d = :: = e. In the large cylindrical portion of the idling shaft 64 ... and: The shell 79a has a small gap, and the mouth is inside the circle: The magnet 79f forms a magnetic couple between the permanent magnet 79f and the permanent magnet 79e of the shaft portion of the blade 79d. The politic heater 41 is disposed between the U-shaped * formed by the upper curved glaze box 42u and the cylinder head 43, and its left and right ends They are fixed on the upper crankshaft 42u and the cylinder head ". Second> If the idling shaft 64 rotates, the blade 79d is also combined by the action of the magnetic couple. The cooling water flowing into the pump chamber through the aqueduct 80 is increased in pressure by the blade 79d and passes through the drainage hole 8丨 Feed the cooling water jacket. ^ As shown in Figure 2, the high temperature parts of the gas cylinder 45 and the cylinder head 43 are cooled, where == water, flows through the thermostatic box 82 from the cooling water outlet of the cylinder head 43 °

Into the water tank on the inlet side of the heater 41, the cooling water outlet of the cylinder head 43 is formed in a protruding L shape, and the protruding cylindrical area penetrates the side of the water tank on the inlet side of the radiator 41 = behind the wall of the receiving chamber 41a The receiving chamber 41a is embedded and the cylinder head is cut.) = Fluid communication between the water outlet and the water tank on the inlet side of the thermal heater 41. The thermostatic chamber 82 is arranged in a flow path which penetrates the wall of the accommodation chamber 41a in the protruding cylindrical region. The V-shaped space formed by the upper crankcase 42U and the cylinder head 43 allows the cutter 41 to be mounted compactly here, and the power pack 7 is now more compact. At the same time, Wen Kere 472013 Five Invention Description (12) By omitting the pipe between the cooling water outlet of the cylinder head 43 and the inlet-side water tank of the radiator 4, the installation of peripheral components is increased, and the cooling water passage is connected. It becomes easy. The outer peripheral surface of the large cylindrical area 64a of the rotating shaft 64 is partially provided with a notch = a counterweight 83. The vibration due to the rotation of the crankshaft 31 with the counterweight 3U and the reciprocating motion of the piston 47 and the conical link 48 can be suppressed by the balance of the cylindrical weight 83. The idling shaft 64 is a driving shaft for driving the cooling water pump 79, and is the same as a balancing shaft. The drive camshaft 53 ^ idling shaft 64 can be used as a two-axis rotary motion of the shaft: the structure of the drive shaft of the pump 79 and the balance shaft function. There is an idling shaft with cooling water, and now it is right and P is jealous—come ’, it ’s not ordinary. Compared with 5 and a rotating shaft with some functions, the cost is reduced. For the axis C2 of the cylinder 45, the mounting surface "" including the separating surface A intersects one side, that is, the separating surface and Anji == 安 :: 自The camshaft 53 and the idling shaft 64 are installed, so the separation surface = the rotating shaft 6 4 and the camshaft 5 supported by the mounting surface b. The two shafts can be arranged close to each other. No other shaft is required between the idling shaft 64 and the camshaft 53. , ^ _ / It is directly connected by the pinion gear 6 6 and the camshaft gear 6 7. Therefore, the height of the axis 杲 u in the direction of: ° ΦΦ Γ 9 Ht- meter dagger 4 b can be controlled lower, and the size of the extension of the power pack 7 to the left and right is reduced, making the power pack 7 more compact. And you can not; between the axis, reduce the number of parts used. The camshaft 5 3 and the idler cymbal 6 4 are located below the gas cylinder 4 5 which is inclined to the upper right from Qu Han 31 1. Therefore, the center of gravity of the power pack 7 can be lowered. ;,

V. Description of the invention (13) In the area of the above-mentioned separating surface a of the second cylinder 45, the camshaft 53 and the side of the narrow 45 between the female clothing surface B can be shaped as: V This cylinder on the reverse side is equipped with a large space in which the peripheral components and the rotating shaft are arranged. In this space, the power transmission device 90 can be used for the gear-cranking mandrel 93, the input-gear gear type transmission 91 has Middle: The soil-type speed change clutches 96, 97, 98 and the wheel output shaft are connected in the direction = the central axis 93 is the central axis of the transmission 91, and its front and bottom :: are embedded in the separating surface A of the upper and lower crankcases 42U and 42L. This: up! = 4,2U: bottomed semicircles formed on the inner surface of the front end of the front end, respectively, and the rear end is inserted into the support hole of the housing of the highest speed device 110 mounted on the rear end face of the transmission case 92, This plays a supporting role. Anto = The shaft end of the housing of the final reduction gear 110 includes a stop member 100 to prevent the central shaft 93 from rotating. Here, the axis C5 of the central axis 93 located on the separation plane A, diagonally to the left of the axis C1 of the crankshaft 31 disposed near the center of the vehicle body, extends in the front-rear direction of the vehicle body. In this way, the power transmission device 90 is also arranged diagonally above and to the left of the axis C1 of the crankshaft 31. On the other hand, the shaft center c4 of the idle shaft 64 supported by the separating surface A is located diagonally to the right of the axis C1 of the crankshaft 31 and extends in the front-rear direction of the vehicle body. In this way, the crankshaft 31 between the central shaft 9 3 and the idler shaft 64 of the transmission 91 is disposed on both sides, and the power pack 7 in the left-right direction is expanded as compared with the case where two rotary shafts are disposed only on the one side of the crankshaft 31. Reduced size makes power pack 7 tighter

5. Description of the invention (14) '--- Minato. ^ The other end of the car 9 3 is touched by the front end of the upper and lower crankcases 4 2 U and 4 2 L. A + + The front end of the shaft 9 3 is closer to the rear of the car than the rear end of the crank 31 . Therefore, the curved vehicle 31 and the central shaft 93 can be relocated in the front-rear direction of the vehicle body, and the length of the power pack 7 in the front-rear direction can be shortened, making the power pack 7 compact. The following description focuses on the action of the speed-changing Jay 91. The second drive gear 61 of the crankshaft ^ and the input gear 94 mounted on the flange mesh with each other, and the flange on which the input gear 94 is mounted is mounted on the flange wheel which allows the central shaft 93 to rotate freely. To the center. The rear pad of the flange hub ii and the clutch pad 95a of the starting clutch 95 can be combined to rotate together. The starting driving wheel 105 meshing with the idling shaft 104 constituting the speed reduction mechanism of the starting motor passes the one-way clutch. 6 Installed on the front of the flange hub 丨 〇 丨. When starting, pass through the pinion 102, the large gear of the idler shaft 03, the small gear 104 of the idler shaft, the starting drive gear 05, the one-way clutch 106, the input gear '94, and the second drive gear 61, The turning power of the starter motor is transmitted to ^ The starting clutch 95 is installed on the same shaft as the central shaft 93, and has a pad 95a, an external clutch 95b, and a centrifugal weight 95c. The operation of the centrifugal counterweight 95c caused the pad pad 95a and the external clutch 95b to rotate together, and the percentage of the clutch at the start was low. Two fully connected state. D Main end Each transmission clutch 96, 97, 98 has a planetary gear mechanism and a clutch mechanism. Clutch mechanism for loosening clutch and planetary gear mechanism α 2 scoop internal tooth

4 / ZU1J 5 Description of the invention (15) The wheels are combined to form a complete broadcast. When the planetary gear of the gear mechanism is pulled away from the clutch lining of the gear mechanism and the number of revolutions supported by the planet, the #star: ^ frame is combined into an integrated structure. When the number of revolutions reaches the standard, the gear rack is built through many clutches. The ==: device pad is a centrifugal structure with an integral structure; 有 There is relaxation and premature separation, and the weight is fixed. Sun gear through starting clutch 9 5 Μ? Clutch outer 96a is crotch clutch 951) qfih blood q qiutian line ± 2 speed change clutch clutch 96 q $ body connection, 2 speed shift away from eight crying heart mouth yb The 96b is the same as that of the three-speed gear shifter = U6, and the three-speed gear unit is integrated with the clutch, and the external 5 is a 97 gear. It is connected to the four-speed gearshift clutch 9 and the shaft is used. 99 is connected as a whole to "connect" the trailer of the 4-speed transmission clutch 98. The internal teeth of the 2-speed transmission private exterior 96a and the clutch 96 are actuated, and the number of clutches reaches a predetermined value :: pad The trailer 6b is integrally connected, and does not rotate in the center gear 96c. It is a one-way release benefit 96d and due to the start of # 自 # π 3-speed shift clutch 97, the speed is reduced. Crying 98 with a variable speed clutch; 3, the deceleration effect of the high speed transmission clutch 97, the second gear rotates at the 4 speed, the speed reduction ratio rotates, the rotation speed from the reduction ratio, i off, the speed reduction of 98, the wheel output shaft 99 with- At 2 speeds, it becomes blurred to the maximum reduction ratio. Turn, no longer; the entire 2-speed variable speed clutch is followed by-from the __ ^ speed of the 3-speed variable speed clutch ^ the trailer reaches the specification;

• Ptd page 20 The wheel and the trailer are integrated into the internal gear and the trailer 9 讣-472013 V. Description of the invention (16) The number of revolutions is as follows: 'The trailer rotates at a specified speed ratio, and the 4-speed gearshift clutch The clutch outside of 98 rotates at a reduced speed. ^ Under the combined deceleration, the output shaft 99 has a smaller reduction ratio. In the same way, the three-speed transmission clutch 97 is no longer decelerated as a whole under the action of the clutch mechanism. At this time, under the deceleration of the four-speed transmission clutch 98, the J output shaft 99 rotates at a predetermined reduction ratio. ratio. The four-speed transmission clutch 98 rotates as a whole as a result of the clutch mechanism. The clutch 99a of the start-up clutch 95 and the output shaft move directly at 蛊 2. In the connected state, the number of rotations of the same speed of the output shaft 99 and the clutch pad 95a 'has different values' needs to consider how this changes-the output of the transmission 91 transmitted to the working state is passed through the shaft. The drive mechanism is installed in the final reading strong. That is, the output gear 107 mounted on the transmission 91 meshes with the gear 112 on the drive shaft 111 mounted on the center shaft 110. In the front and rear of the car body, the position deviates from the center of the car body ⑶, and its axis C6 points to the drive shaft 111 of the unillustrated cone II: f, and its rear end forms a driven cone ^ private wheel in the figure, This bevel gear is connected to the rear wheel Θ on the axle of the rear wheel 6. At this time, ^ 曲 * meshes. According to this, the output shaft 99 decreases the number of revolutions and drives a fixed driving wheel n] The position of the axis C1 of the shaft 31 is lowered according to the size of the wheel, and the axis C6 of 彳 〃 ^ is lower than the axis C6, so that the power The weight of group 7 makes the center of gravity of the car body to control the internal gear-1 (see Figure 1). 、 々0 'Installed on the final gear reducer 1 丨 〇 can detect 1 89112064.ptd 4 / 2U13 V. Description of the invention (17) _ Drive shaft 1 1 1 Rotation number sensor 1 1 3 The number of revolutions of the output shaft 99 of the transmission 91 is measured. ^ Detection for Π3 This embodiment has the above-mentioned structure, so it produces a result that points to the front and rear of the car body and is placed at the center of the car body. The axis θ2 of the cylinder 45 is tilted to the upper right, = the constituent elements of the crankshaft 31 90, the center special gear of the planetary gear transmission 91 is arranged in the upper left direction, so the cylinder 45 car =, C5 is in the upper right The square and transmission 91 are located at the upper left of the center c0 of the vehicle body, and the center C0 has approximately the same inclination angle. In this way-come '4 down: the self-aligned bevel can be made larger, and the left and right balance is ensured because the inclination of the car body is slightly equal. The X is tilted downward, and the front end of the central shaft 93 of the planetary gear transmission 91 can enter the two curved sleeves 42 in the front position of the vehicle body. The front = 31 of the rear of this power pack 7 can be ^ the inner surface. 7. The axis C1 of the power crankshaft 31 paid to% 溱 is arranged on the drive shaft 111 to ensure that the drive shaft ⑴ of the rear wheel 6 is required to be lowered by the height of / lift 6 and lowers the center of gravity of the force group 7, thereby lowering the vehicle. Body height. The amount of L causes the idler idler shaft 64 and the cam 53 to be mounted on the joint surface crankshaft and the mounting surface β of the cylinder 45 and the cylinder head 43 respectively, and the blade opening surface A has a high combined performance. From the beginning, it is necessary to mention that the camshaft 53 and the idler shaft 64 are intersected with the plane including the separating surface A and the plane including the mounting surface β of the cylinder 45, which is configured as 472013. V. Description of the invention (18) The plane of the separation surface A and the plane including the mounting surface B are close to each other. Therefore, the idler shaft 64 supported by the separation surface A and the ~ side supported by the mounting surface B. 5 3 can be arranged close to each other, on the intermediate shaft of the camshaft between the idle shaft 6 4 and the cam shaft 53, and the two can be directly connected by the pinion 66 and the cam shaft = no need to connect. Therefore, the height of the cylinder 45 in the direction of the axis C2 can reduce the size of the M wheel 6 7-phase group 7 extending to the left and right, so that the power group 7 can be compact and the power can be reduced without the need for an intermediate shaft, which can reduce the number of components. , ',. Moreover, since the camshaft 53 and the idler shaft 64 are located below the upper right cylinder W of the crankshaft 3, the center of gravity of the power pack 7 can be reduced, and the inclined plane A and the narrow space on the intersection side of the cylinder 45 can be reduced. The inner camshaft 53 and the idling shaft 64 of the coaxial two-to-two rotating shaft with multiple functions are centrally arranged here, so: the side of the cylinder 45 can form a large space without idling shaft. Gas to arrange peripheral components. The radiator 41 can be compactly arranged in the v-shaped space formed by the upper crankcase 42U and the cylinder head 43 to realize a compact layout of the power pack 7 ^ The camshaft 53 is arranged in the cylinder 45 and the cylinder _3 _ t ::: : Xinshuang height 'In addition, the cam ㈣ is arranged in the air: In this phase 5 and the narrow space between the side opener and the installation ㈣, matching ^, the internal combustion engine 30 can be made more compact. The central axis 93 and the idling axis 64 of the spotter 91 are arranged on both sides of the stern shaft 31. Compared with the arrangement of two shafts on the-side of the crankshaft 31, the size of the power group 7 is larger along the left and right sides D, and the power is reduced. Group 7 becomes compact. The idling shaft 64 provided on the driving mechanism of the driving cam 53 is made coaxial

12064.ptd Page 23 Bucket / 2013 V. Description of the invention (19) The key shaft enables the f to have a cooling water pump 79 to drive the balance shaft, which can reduce the cost. In addition, Fig. 4 is used to explain the second embodiment of the present invention, and Fig. 3 is an equivalent diagram. The structure of the power transmission device between the power group 7 of the second embodiment and the force group 7 of the second embodiment is different. The Bergan & Heart and Stomach are up-to-the-like, and therefore, omitted from the first! Detailed description of the structure of the implementation form. "Details of visual structure and symbols. The power transmission device 120 of the second embodiment is equipped with a speeder m. The transmission 121 has an input gear 122, a core plate hydraulic pump 1 23, and a variable capacity type swash plate. & 'Shaft 125. Its axis C7 points to the front and rear of the car body: matching; 2: 1: 24 and the central axis of the transmission 121, the output shaft 125 at the front end is in the separating surface A of the box 42V, 42L. ： == 26 The bottom semi-circular contaminated portions formed on the inner surfaces of the front ends of the upper and lower crankshafts 42U and 42Ϊ are supported by the two-slot support of the transmission case core through the bearing 128. Therefore, the rear end of the output shaft 1 The axis C7 of 25 is located on the upper and face-inserted axis. On the separation plane A. Compared to the front and rear ends of the upper and lower crankcases 42U, 42L, 42U, 42L, the length of the car can be in the front and rear of the car body, so that The front end of the power group 7-wheel output shaft 1 2 5 is supported by the upper and lower curved cars by the box portion, and the front end of the output shaft 1 2 5 is in front of the body of the crankshaft 3. Therefore, 'the crankshaft 31 and the output car are arranged in an overlapping direction, The power pack 7 is shortened in the front-rear direction and compact. ° a Installed in the second part of the curve # 31, Drive gear 61 and casing 123 of hydraulic pump 123

89112064.ptd Page 24 Dou / 2013 V. Description of the Invention (20) ---- The input gears forming a whole 1 22 are on. A starter driving gear 29 engaged with a pinion gear constituting an idler shaft of the starter motor reducer is mounted at the front end of the housing 123a through a one-way clutch 130. In addition, the rotation transmission of the starter belt at the start is the same as the first embodiment. A swash plate 123c for driving a plurality of pistons 123b is installed in the housing 123a. By rotating the swash plate 12 of the housing 123a, the pistons are driven, and the hydraulic pump 123 generates high pressure. The hydraulic motor 124 has a cylinder device 124a and a swash plate 124c with a plurality of pistons 12 and the cylinder device 124 is integrated with the wheel output shaft 125. α The hydraulic pressure generated by the hydraulic pump 1 2 3 is controlled by the control valve and sent to the hydraulic motor 丨 2 4. Each piston 1 2 4 b is driven and connected to the swash plate 1 2 4 c. The cylinder device 1 2 4 a rotates. The output shaft 125 integrated with it also rotates. The angle of the swash plate 124c can be changed by the actuator, and the rotation of the output shaft 1 2 5 realizes stepless speed regulation. Furthermore, by using the above-mentioned control valve, the output shaft 1 2 5 can be prevented from rotating, and the rotation of the input gear 1 2 2 can be prevented from being transmitted to the wheel output shaft 1 2 5. The output gears 丄 3 丄 mounted on the output shaft 1 2 5 of the hydraulic transmission 1 2 1 mesh with the gears α fixed on the drive shaft 141 of the final reduction gear 1 40. The axis C8 points to the bevel gear 1 41 a formed at the rear end of the drive shaft 1 4 1 arranged in front and rear of the vehicle body, and meshes with the driven conical window wheel 142 mounted on the axle 1 4 3 of the rear axle 6 . In this way, the number of revolutions of the output shaft 125 decreases, and the rear wheels 6 are driven. At this time, 'as in the first embodiment, the axis C1 of the crankshaft 31 is located below the drive shaft 1 4! Axis C 8, so the center of gravity of the power pack 7 is lowered', which can lower the center of gravity of the vehicle body. To control the internal combustion engine 30 and the transmission 1 2 1 ′, the final reduction gear 1 4 〇

89112064.ptd Page 25 472013 V. Description of the invention (21) A rotation speed sensor 1 4 4 is installed on the casing to detect the rotation signal of the driving shaft 1 41 4 'The transmission speed sensor 1 4 4 is used to detect the transmission 1 2 1 The number of revolutions of the output shaft 1 2 5. In the second embodiment, the hydraulic transmission 1 2 1 has a shorter length in the front-rear direction than the planetary gear transmission 9 1 of the first embodiment except that it has the same effect as the first embodiment. Therefore, it can be more compact. Power group Ί. In the first and second embodiments, the central shaft 9 of the planetary gear transmission 9 1 3, the output shaft 1 2 5 of the hydraulic transmission 1 2 1 and the drive shaft 6 4 are supported by the separation surface A of the crankcase 4 2 It may be supported by the crankcase 42 at a position other than the separation surface A. Similarly, the camshaft 5 3 need not be supported on the mounting surface B, but may be supported only by the cylinder head 4 3. The motorcycle 1 may be a motorcycle other than a Dakota motorcycle. [Description of component numbers] 1 Motorcycle 2 Bolts 3 Front frame 4 Rear frame 5 Front wheel 6 Rear wheel 7 Power pack 8 Seat 9 Front fender 10 Front cover

89112064.ptd Page 26 472013 V. Description of the invention (22) 11 Foot pedal 12 Frame body cover 13 Rear mudguard 14 Side cover 15 Storage box 16 Swing arm 17 Cushioning device 18 Main bolt pin 19 Axle cage 2 0 Vehicle Shaft 21 Head tube 22 Running column 2 3 Control arm 24 Connecting rod 25 Trailer 26 Suspension hole 27 Cushioning device 30 Internal combustion engine 31 Crankshaft 3 2 Air filter 33 Air duct 34 Throttle body 35 Suction pipe 36 Fuel injection valve

89112064.ptd Page 27 472013 V. Description of the invention (23) 37 Fuel tank 38 Exhaust pipe 39 Exhaust muffler 40 Fan cover 41 Radiator 42 Crankcase 43 Cylinder head 44 Cylinder head cover 45 Cylinder 46 Tubular bearing bush 47 Piston 48 Conical connecting rod 49, 5 0 Main bearing 51 Cremation base 52 Supercharger 53 Axle 54, 5 5 Bearing 56 Alternator 57 Nut 58 Cooling fan 59 Bolt 60, 6 1 Drive gear 62 Grease 63 Suction path

89112064.ptd Page 28 472013 V. Description of the invention (24) 64 Idling shaft 65, 66, 67 Gear 68 Suction valve 6 9 Booster valve 7 0, 71 Suction rocker-72 Connecting rod 73, 74 Rod 75 Connecting rod 7 6 Rotary position sensor 7 7, 7 8 Bearing I · 7 9 Cooling water pump 80 Aqueduct 81 Exhaust hole 82 Thermostatic box 83 Counterweight 90 Power transmission device 91 Planetary gear transmission 92 Transmission box 93 Central shaft 9 4 input gear 95 Start clutch 96, 97, 98 Speed change clutch 9 9 Output shaft 1 0 0 Peripheral fixing parts

89112064.ptd Page 29 472013 V. Description of the invention (25) 1 0 1 With flanged hub 1 0 2 Pinions 103, 104, 105 Gear 1 0 6 One-way clutch 107 output gear 1 1 0 Final reduction device I 1 1 Drive shaft 112 Gear II 3 revolutions sensor 1 2 0 Power transmission device 1 2 1 Hydraulic transmission 1 2 2 Input gear 1 2 3 Inclined plate hydraulic pump 1 2 4 Inclined plate hydraulic motor 1 2 5 Output Shaft 1 2 6 Bearing 1 2 7 Transmission case 1 2 8 Bearing 1 2 9 Gear 1 3 0 One-way clutch 1 3 1 Output gear 1 4 0 Final reduction gear 1 4 1 Drive shaft 1 4 2 Gear

89112064.ptd Page 30 472013

89112064.ptd Page 31 472013 Brief description of the drawings Fig. 1 is a left side view of a Dakota type motorcycle with a power pack according to Embodiment 1 of the present invention. Figure 2 is a schematic diagram of the main part of the gear α gear meshing \ '^ when cutting the crankcase and cylinder head with the I I -1 I line in FIG. 1. \ / Figure 3 ΓΓ Figure 2 I I I-I I I sectional view. Fig. 4 is a cross-sectional view corresponding to Fig. 3 of a motorcycle set according to a second embodiment of the present invention. »

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Claims (1)

472013 VI. Scope of patent application 1. A power pack for a two-wheeled vehicle, characterized in that the internal combustion engine has a crankshaft that points to the front-rear axis of the car body and transmits the power of the crankshaft to the power unit of the rear wheel. The power pack of the two-wheeled motor vehicle arranged below is configured as follows: the axis of the crankshaft is arranged near the center of the vehicle body, and the cylinder of the internal combustion engine should be arranged such that the axis of the internal combustion engine cylinder is offset from the axis of the crankshaft to the left and right directions of the vehicle body and Inclined upward, the power transmission device should be arranged so that the axis of the transmission central shaft provided by the power transmission device is offset from the axis of the crankshaft to the other side of the vehicle body in a diagonally upward direction and points to the vehicle body. In the front-rear direction, the front end of the central shaft is arranged forward than the rear end of the crankshaft. 2. For the power set of a two-wheeled motor vehicle according to item 1 of the patent application, wherein the axle of the rear wheel is driven by the shaft transmission mechanism of the power transmission device, the axis of the crankshaft is greater than the axis of the drive shaft of the shaft drive mechanism. Arranged below the line. 89112064.ptd Page 33