JPH01210609A - Double crank engine - Google Patents

Abstract

PURPOSE:To have strong explosion power under high compression combustion so as to remove unavailable vector area by installing 2 cranks for a recipro- engine in such a manner that the 1st crank is installed as an eccentric fulcrum shaft in relation to the 2nd crank acting as a main shaft, and advancing 1st crank connecting shaft in the rotational direction. CONSTITUTION:The 1st crank 7 is pivotally supported at the 1st crank supporting point 8, fixed 1st connecting shaft 11 is fitted into the crank connecting part 6 of a connecting rod 24, then cushioning member 5 with an elliptic cut off long hole 4 inside is packed thereon. In addition, a rotary centrifugal moving panel 20 is supported at a supporting shaft bolt 18, and is connected to the 1st crank projection 12 at the axial rod joint 15, axial rods 17B and 14A. Furthermore the 2nd crank additionally serving as a flywheel 2 is pivotally supported at the 2nd crank shaft 1, the 1st crank 7 is pushed outward by a spring 22, then engaged with the elliptic cut off long hole 4 at the 2nd crank connecting shaft 3. Therefore, the strong combustion explosion power can be achieved with the minimum volume of a compression combustion chamber 38 and unavailable vector area can be removed.

Description

[Detailed Description of the Invention] The figure shows the configuration of each part when the engine is stopped and rotates at low speed. The second figure shows the two cylinder heads 29 of the engine's high-speed revving machine, each connected to the connecting rod crank 7. The first crank 7 is fixedly fixed, and the axis point thereof is set on the second crank/Fufuihoi/I/2 so that the first crank 7 is pivoted by the first crank fulcrum shaft 8 provided on both sides,
When the second crank connecting shaft 3 reaches the top dead center position and aligns with the center line of the engine, the second crank connecting shaft 3 is advanced from the top dead center position by about 160 degrees in the rotational direction of the crank. The first crank 7 is provided as a crank fulcrum shaft 8, and furthermore, a first crank connecting shaft 11 is fixedly installed above the first crank 7, which extends upward from the first crank fulcrum shaft 8 in a curved arm shape. u inside the first kufun' connecting shaft 11'',
, @Ip member 5 is filled 51, and inside the buffer member 5 is provided an elliptical cut-out elongated hole 4, and for the elongated hole,
The second crank connecting shaft 3 which is connected to the second crank-cum-furry wheel 2 passes through the oval cut-out elongated hole 4 so that the second crank connecting shaft 3 can move left and right within the range of the elongated hole. The change in movement is the second one...
The connecting shaft 3 serves as the second crank and also serves as the 2M door.
・V Both are fixed and their positions do not change,
As the first crank connecting shaft 11 moves from side to side around the first crank fulcrum shaft 8, the buffer member 5 is moved into the slotted slot 4 along with the crank connecting portion 6 of the connecting rod below the connecting rod 24. The second crank/flywheel/I/2 moves within the length of the hole while leaving the second crank connecting shaft 3 behind.
The spring housing 21 is fixed to the disc-shaped second crank/L/2, and the spring housing 21 is compressed and stored inside the spring housing 21. 22, and the force of its extension pushes the spring push rod 23-crank contact portion lO outward with an appropriate force, so the second crank connecting shaft 3 is positioned on the right inside the oval cutout elongated hole 4. As shown in Fig. 1, there is a first crank connecting shaft 11 at the upper part of the first crank 7, and a first crank protrusion 12 at the tip.

A shaft rod 14A with a short shaft joint is fixedly connected to the tip of the shaft, and separately, a rotating centrifugal movement plate and a centrifugal movement plate are attached to this fulcrum port 18', which also serves as the second crank and the center of the Fufuihoi AI2. The shaft hole 1 of the rotary centrifugal moving plate is provided in the connecting part 19 of
6 shows the shaft rod 1 of one shaft rod joint provided in the shaft rod joint 15.
7B is fitted into the shaft hole 13 of the first crank protrusion, which is provided in the first crank protrusion 12 provided at the upper end of the first crank 7. Next, to explain the operation, there are parts whose operation changes depending on when the engine is stopped and rotating at low speed, as shown in Figure 1, and when it is rotating at high speed, as shown in Figure 2. is the crank connecting portion 6 between the first crank 7, the rotating centrifugal moving plate 20, and the connecting rod.First, the rotating centrifugal moving plate 20 is stopped at the position shown by the dotted line in Figure 1, and when the engine rotates at high speed, The multi-position part 39 of the rotary centrifugal moving plate is moved outward using the fulcrum shaft port 18 of the rotating centrifugal moving plate, which is fixed to the second crank/fufuihui A/2, as a fulcrum, and moves outward as shown in the dotted line in FIG. 20 positions as shown by , the connecting part 19 of the rotary centrifugal moving plate above the fulcrum shaft pol H8 is displaced to the right, so the shaft of the shaft joint at the rear end of the rotary centrifuge is The first crank protrusion 12 above the first crank 7 engages with the shaft hole 13 of the first crank protrusion provided in Using the shaft 8 as a fulcrum, the upper first crank connecting shaft 11 and the crank connecting portion 6 of the connecting rod simultaneously move to the right, and the position of the second crank connecting shaft 3 in the inertia circular cutout elongated hole 4 changes to an elliptical shape. Inside the slotted hole 4, the first crank 7 and the first crank connecting shaft 11 move toward the right until they are positioned on the left side as shown in Figure 2. This movement causes the first crank 7 and the first crank connecting shaft 11 to move in advance, and the second No matter how strong the effective force is in the reactive vector area exerted on the crankshaft 1, the power factor is constant for the crankshaft, because the reactive vector area continues up to point B. As you can see, when the crank connecting shaft reaches point B, the explosive driving force turns into torque, which gradually increases in strength and rotates to the right. At this time, the top surface of the piston is at position E, and the cylinder rod moves by an angle of θ, but by this time the combustion chamber of the cylinder has already moved close to position E, which is twice as wide as position F at the time of ignition and explosion. Therefore, the explosion driving force was initially 32.9/d@, but it is now 16 kg for practical use.In the present invention, the cranks are arranged in two stages, with the first stage being the first crank. 7, and the rear stage is the second crank and Fufuihoi/I
/2, this is received by the second crankshaft IK and used as the main shaft, this second crankshaft 1 and the second crank connecting shaft 3
This corresponds to the seven crankshafts of a conventional engine.The piston is ignited just before top dead center, and both the pistons and I/2 are rotating at the same time, and the rotation of the main shaft is At high speeds, the rotational centrifugal movement of the plate comes into play,
Place the second crank connecting shaft 3 at its side position at point A,
Since the connecting rod force and the first crank connecting shaft 11 are pushed to the right to move the liquid, the point of force of the explosive driving force of the first crank connecting shaft 11 pushed by the piston force and the piston pin 6 moves to the zero point. In this way, since the connecting rods of the first crank 7 and the first crank connecting shaft 11 advance by an angle θ, the driving force from the connecting rod U is applied to the elliptical cutout length within the crank connecting portion 6 of the connecting rod. Since the first crank connecting shaft U has moved within the range of the length of the hole 4, the direction of force is dispersed in two directions, and one is from the first crank connecting shaft U to the oval cutout long hole 4.
The second crank-cum-flywheel 2 works from the second crank connecting shaft 3 located on the left side C of the inner side, and at the same time, the other one moves from the first crank connecting shaft 11 through the first crank 7 to the first crank fulcrum. The second crankshaft and flywheel 2 works together with the shaft 8 to transmit the second crankshaft 1, so the second crankshaft 1 is excluded from the invalid vector area. The crank connecting part 6 of the connecting rod moves upwards following the radius arc 51y of the connecting rod, and reaches the 0 point. It is located to the right of the line that vertically connects the second crank connecting shaft 3 and the second crankshaft 1 by an amount H, and is 160 degrees to the right in the rotational direction from the dotted line I of the crank radius.
Since the position is advanced by a certain degree, the first crank connecting shaft U
The radius circle/arch line y from the first crank fulcrum shaft 8 that transitions from point A to point 0 moves upward to the right after passing through A, the longitudinal centerline of the engine. 2.The radius from the crankshaft 1 becomes larger and becomes the circumferential line Y shown by the chain line.
For that reason, the compression combustion chamber of the cylinder is not erased, and the compression pressure value increases, so the explosive force value also increases by that amount, and within that large and strong force value, immediately from the piston to the connecting rod U. After passing through the second crank and Fufihoi A/
2, the maximum explosive driving force from the second crankshaft 1 is converted into a strong top, and the rotational driving force and Fig. 1 is a plan cross-sectional view of the engine of the present invention, when the engine is stopped. When the first crank connecting shaft 11 and the crank connecting portion 6 of the connecting rod move at the same time as the second crank connecting shaft 3 during low speed rotation and low speed rotation, the center line of the connecting rod and the longitudinal center line of the engine coincide. The second figure shows that the engine rotates at high speed and the rotating centrifugal movement undergoes centrifugal displacement, and the reaction action pushes the connecting rod joint 15, which simultaneously connects the first crank 7 and the first crank. The third figure is a side sectional view of the first figure, showing the shaft 11 and the connected part.The fourth figure shows the second crankshaft 1, the second crank and flywheel/l/2, and the second crank connecting shaft. 3, the lower part is the first crank 7 and the first crank connecting shaft 11, the lower part is the shaft rod jointed, the lower part is the rotating centrifugal movement tentative title, and the fifth figure shows the force value when the fuel gas ignites and explodes. B is the torque force value generated by the conventional engine, and C is the curve of the torque force value obtained by the present invention. Figure 6 is a structural diagram of the engine of the present invention. , is a diagram showing each force point and the direction of the vector, showing that the explosive force value from piston b is converted into torque by value, beyond the 1.1t (effective vector range).

Next, write down the numbers and names of parts in the drawing. 1. Second crankshaft, 2. Second crank and flywheel, 3. Second crank connecting shaft, 4. Long hole cut out in the inertia circle, 5. Buffer member, 6. Connecting rod crank. connection part, 7 first crank, 8 first crank fulcrum shaft 9 first crank braking part, lO first crank contact part, 11 first crank connecting shaft, Minoru first crank protrusion, 131 - crank protrusion part; Shaft hole, 14A @ rod joint A, 15 shaft rod joint, 16 rotation centrifugal moving plate shaft hole, 17B shaft rod B.

Fast rotating centrifugal moving plate fulcrum shaft port, 19 rotating centrifugal moving plate connection, 3 rotating centrifugal moving plate, 6 pistons, 3 pistons, n cylinders,
Crank chamber, 4 engine heads, ignition plug, 31 first crank fulcrum shaft hole, ! The fulcrum shaft hole of the rotary centrifugal moving plate, the first crank fulcrum shaft hole of the second crank and flywheel, the maximum movement position of the shaft B of the spindle joint, A, the bearing for the second crank bearing, I. A hole for fixing the second crank connecting shaft provided in the second crank and flywheel, a circular arc line with a radius along which the first crank moves by the first crank fulcrum shaft, a compression combustion chamber, and a multiplicity of rotating centrifugal moving plates. Placement part, angle of movement of θ connecting rod, 0! Advancement angle of rank, more than - ¥75 times

Claims (1)

[Claims] In a reciprocating engine, the connecting rod 24 passes through the first crank connecting shaft 11 to the inside of the crank connecting portion 6 of the connecting rod so as to rotate lightly, and both ends of the first crank connecting shaft 11 are connected to a pair of first cranks. Fixed to 7,
The axis point of the first crank 7 is the first crank fulcrum shaft 8
The first crank fulcrum shaft 8 is fixed to the pair of second crank and flywheels 2, and the position of the shaft stop is such that the piston 26 is at the top dead center and the piston pin 2 is fixed.
5 and the second crankshaft 1, when the second crank connecting shaft 3 is in line with the vertical center line passing through the second crankshaft 1, the second crank and flywheel 2 extends from that position to the position of the first crank fulcrum shaft 8.
The first crank connecting shaft 1 is set at a position approximately 160 degrees advanced from its top dead center position in the direction of rotation.
1 is filled with a buffer member 5, and the buffer member 5
An oval cut-out elongated hole 4 is formed inside the elliptical cut-out elongated hole 4, through which the second crank connecting shaft 3 passes. , a first crank protrusion 12 is located further to the tip of the first crank connecting shaft 11 on the upper part of the first crank 7 that slides within that range, and a shaft hole 13 of the first crank protrusion is bored in that part. Rotating centrifugal movement plates 20 are provided outside both sides in the axial direction of the second crank and flywheel 2, to which the shaft rod 14A of one of the shaft joints 15 is attached. A fulcrum shaft bolt 18 of the rotary centrifugal plate is fixed to the second crank/flywheel 2 in the fulcrum shaft hole 32 of the plate. The shaft hole 16 of the moving plate is drilled, and the shaft rod 17B of the other shaft rod joint 15 is pivoted.When the engine rotates at high speed, the centrifugal moving plate 20 rotates.
The rotational force generates centrifugal force, and the fulcrum shaft bolt 18
When the multi-mass part 39 of the rotary centrifugal moving plate centrifugally displaces outward using the axis as a pivot point, the connecting part 19 of the rotating centrifugal moving plate is displaced to the right, and the shaft rod of the shaft rod joint in that part is displaced to the right. 17B
is displaced diagonally upward to the right, and the shaft hole 1 of the first crank protrusion is
3 pushes the first crank protrusion 12, and the first crank 7 uses the first crank fulcrum shaft 8 as a fulcrum to push the crank connecting portion 6 of the connecting rod 24 and the first crank connecting shaft 11.
While rotating at the same time, the first crank contact portion 10 at the tip of the first crank braking portion 9 is moved from the first crank connecting shaft 8 of the first crank 7 to the first crank contact portion 10 when the engine is stopped. , the spring push rods 23 in the spring housing 21 provided on both inner surfaces of the second crank/flywheel 2 push the first crank contact portion 10 at the tip outward with the extension force of the spring 22, thereby pushing the first crank contact portion 10 outward. Connecting shaft 1
The second crank connecting shaft 3 in the oval cut-out elongated hole 4 in 1 is left in the same position, and the second crank is used to push the first crank connecting shaft 11 and the crank connecting portion 6 of the connecting rod to the left. The connecting shaft 3 is positioned on the right side in the oval cutout elongated hole 4.The first crank connecting shaft 11 and the crank connecting portion 6 of the connecting rod are centered on the first crank fulcrum shaft 8, and the circumference of the radius arc line 37 is the axis. Since the line moves as a radial arc line 37 diagonally upward to the right after the second crank connecting shaft 3 passes through the vertical center line with respect to the rotational circumference line of the second crank connecting shaft 3, the connecting rod The crank connecting portion 6 is pushed upward and at the same time the piston 26 is pushed upward a little, thereby minimizing the volume of the compression combustion chamber 38 of the engine, thereby making the combustion explosive force more powerful. A driving force of a certain value can be transmitted to the connecting rod crank connecting portion 6 and the first crank connecting shaft 11. Furthermore, when the engine speeds up to high speed, the centrifugal force generated in the rotating centrifugal moving plate 20 Since the first crank connecting shaft 11 is configured with the second crank/flywheel 2, they are rotating at the same time, but since this is further advanced in the direction of rotation and moved, the connecting rod 24 is connected to the crankshaft 1. The first crank connecting shaft 11 continues to rotate simultaneously with the crank rotation angle advanced by the angle θ'. If an explosion occurs due to ignition when the second crank connecting shaft 3, which is fixed to the second crank and flywheel 2, reaches a position slightly before top dead center, the driving force is transferred to the piston 26.
The connecting rod 24 is transmitted from the first crank connecting shaft 1.
1, and from this point on, the force value is divided into two parts: one is applied to the second crank and flywheel 2, and the other is applied to the second crank connecting shaft 3.
Even if the position point is in the invalid vector area, since the first crank connecting shaft 11 is advanced by the angle θ', this position point is immediately converted to the effective torque area, and one of the two halves of the force value is A force that rotates the second crank/flywheel 2 clockwise by pulling the second crank connecting shaft 3 toward the left corner of the long hole in the oval cutout elongated hole 4 in the first crank connecting shaft 11 to the right. The other force value is 7 for the first crank.
The force that pushes the first crank fulcrum shaft 8 from above and rotates the second crank and flywheel 2 clockwise becomes a strong torque that is immediately extracted from the second crank shaft 1 as rotational driving force. A two-stage crank engine that excludes the vector range.