TWM242582U - Convertible Venturi tube carburetor with vacuum automatic regulation and cam control - Google Patents

Description

M242582 V. Creative Instructions (1) [Technical Field of the New Type] A variable venturi carburetor with automatic vacuum adjustment and cam control, particularly about a method that utilizes the change in vacuum suction of the engine and the linkage of the cam to control the The cone of the Venturi tube assembly moves up and down to supply a variable Venturi carburetor of the appropriate concentration of oil and gas. [Previous technology] The use of energy and the maintenance of environmental protection have always been important issues for sustainable development. While converting energy to achieve a comfortable life, various corresponding pollutants have also been produced simultaneously. Taking ground transportation as an example, a vehicle is the most common and convenient tool. It obtains the required power through the combustion of fuel oil, and it implements the convenience of human action. In order to effectively mix fuel with air for < · combustion, and to make the exhaust generated after combustion meet the requirements of environmental protection, the vehicle's combustion system is equipped with carburetor. When a fixed venturi tube carburetor increases the amount of intake air, the venturi tube forms resistance to the air, resulting in the inability to inhale a sufficient amount of air; and when the fuel pressure is sucked in with the vacuum pressure inside the venturi tube, the engine represented by the ideal fuel volume is the best Good performance can be achieved only in a small range of engine speeds. Therefore, a variable Venturi carburetor was used to make the air-fuel mixture concentration applicable to a wider range of engine speeds. The conventional Venturi tube carburetor with automatic vacuum adjustment is shown in the first figure, including the base, the body, the upper cover, the Venturi tube assembly 2 >, the oil tank 3 > and the channel structure 4 /, Wherein the base 6 >, the body 7 > and the upper cover 8 > are sequentially fixed and have corresponding central flow channels 1 0 ', and the base 6' is provided with a throttle valve rotating shaft 5 1 1 >,

Page 5 M242582 5. Creation instructions (2) The throttle shaft 5 1 1 / fixed lever 5 3 >, the body 7 is provided with a flange 70 > close to the upper cover 8 >, the upper cover 8 > An inner ring is provided with a fixing ring 80 —close to the body 7 —a flange 70 > forming an outlet pipe 40 —, the variable venturi tube assembly 2 > includes a bracket 20 >, a central shaft 21 1 —, a cone 21 > And the reply piece 22 /, the bracket 20 is fixed in the body 7 /, the bracket 2 0 is provided with a pivot hole 2 1 3 >, and the central axis 2 1 1 is fitted to the bracket 2 0 >; The pivot hole 2 1 3 >, the central shaft 2 1 1 > the lower end is pivotally connected to the throttle valve shaft 5 1 1 > the lever 5 3 >, the cone 21 / fixed on the central shaft 211 > the upper end , The cone 21 / conical surface and the flange 70 of the body 7 > form the venturi throat 1 3 >, the restoring piece 2 2 / is provided between the cone 2 1 > and the bracket 2 0 > With the above push cone 2 Φ 1 >, the channel structure 4 / communicates with the oil tank 3 > and includes the above-mentioned outlet pipe 40 > communicates with the venturi throat 1 3 >. The rotation of the throttle shaft 5 1 1 > drives the central axis 2 1 1 > of the variable venturi tube assembly 2 > down to change the size of the venturi throat 1 3 > Obtain an appropriate mixed gas concentration. The above-mentioned conventional Venturi tube carburetor with automatic vacuum adjustment, the variable Venturi tube assembly is linked with the throttle valve shaft of the base. When braking, the instantaneous engine vacuum suction is strong, and the variable Venturi tube assembly When the vacuum of the engine is strong, the cone is pushed up by the recovery part to reduce the venturi throat between the cone surface and the flange of the body, but its position is not precisely controlled, and the optimal gap cannot be obtained. The distance leads to more oil absorption and greater pollution. Therefore, the concentration of the mixture of fuel and air cannot reach the ideal state, and there are problems of fuel consumption and exhaust pollution. In addition, when the throttle valve is fully opened, the gap of the venturi throat is fixed, but

Page 6 M242582 V. Creation instructions (3) The engine load is different for different road slopes, and the provision of the mixture concentration is not actually required by the engine. For example, when driving on a flat road, it will cause waste of fuel, as if driving on a climb Insufficient fuel intake will result in insufficient horsepower on the road, even if the body is equipped with a horsepower adjustment ring connected to a vacuum valve controlled by the engine's vacuum suction to control the amount of fuel, when the engine load is heavy, the engine's vacuum suction will decrease. As the vacuum valve loses the effect of automatic compensation, the engine performance still needs to be improved. Therefore, it can be seen from the above that the conventional Venturi tube carburetor of the above-mentioned conventional vacuum automatic adjustment obviously has inconvenience and deficiency in practical use, and needs to be improved. The reason is that the author feels that the above-mentioned shortcomings can be improved. He has devoted himself to research and cooperated with the application of theories to finally propose a rational design and effectively improve the above-mentioned original creations. [New content] [Creation purpose] The main purpose of this creation is to provide a variable venturi tube carburetor with automatic vacuum adjustment and cam control, so that the supply concentration of the mixture of air and fuel is appropriate to meet the engine's different loads To improve engine performance, to achieve fuel saving, high horsepower and low exhaust pollution. [Creation Features] In order to achieve the above purpose, this creation is mainly to provide a variable venturi tube carburetor with automatic vacuum adjustment and cam control, including a seat, a variable venturi tube assembly, an oil tank, a channel structure, and a cam control Mechanism, wherein: the seat has a central flow channel, one end of which is an air inlet, and the other end

Page 7 M242582 Creation instructions (4) Air outlet; the variable venturi tube assembly is located in the middle, cone and restoring parts, the bracket is fixed on the seat and is fitted to the bracket, between the cone cone surface and the seat body The return piece is arranged between the bracket and the cone; the oil groove structure communicates with the oil groove and the venturi throat; the cam surface of the two cam groups of the cone and the cam surface contact the top of the surface by including a cam group, a throttle valve group and a linkage mechanism; '' The throttle valve group is pivotally located at the seat 2'f throttle valve to control the opening and closing of the air outlet, and the two ends, and 'the other end is connected to the throttle valve group. The cam surface of the push-up position of the convex part of the variable Venturi tube assembly is in contact with the top of the tapered surface of the cone ^ gr, and the cam group and the throttle valve group are kept at the best by interlocking the two throats. Clearance distance. 1 X her way] means to explain in one step that this creation is too effective to achieve the intended interaction. 'Please refer to the following about the body of this creation: is the purpose, characteristics and characteristics of the work, but the drawings are only for reference. &Amp; Detailed description of adjustment] Adjustment and I = As shown in the second and seventh figures, the original Venturi tube knows @ Control's variable Venturi tube carburetor 'piece 2, oil tank 3, channel structure 4 slide the channel The central body fluid is formed in the motive channel of the cam variable body. The venturi seat cam group has a venturi vent structure, including a branch cone bottom tube throat. Inside, the passage control mechanism is provided in the The mouth of the seat tube assembly, the steam-saving end is connected to the body, and the cam control mechanism is used to limit the connection of the cone mechanism. The technology adopted for the purpose is described in detail and attached drawings. It is a kind of vacuum automatic including seat body 1, variable and cam control mechanism 5

M242582 Fifth, the creation description of which β · seat body is the air inlet body 7 8 'The outlet 0 is close to the inside of the flange variable bracket 2 0 in the seat body and the cone 2 fits between the support inner groove 2 0 Shape and cone 2 spring at the other end. Oil tank-shaped, body 9 so that the channel crusts 1, 11, and the upper cover air port 1 upper cover 8 7 0 Venturi tube, cone 1 base 1 bottom end frame 2 0 12, Cheng Wen 1 In 3, 7 is provided with an oil slick chamber structure. 4 is constructed in 4 packages. It has a central flow and the other end is 8 and 2 positions. The upper component 2 1 is equipped with a middle cone pipe throat. It is fixed to the inner port pipe 2 of the bottom cover 8 and supports the central shaft mandrel sleeve 2 1 cone 1 3 Duplex 2 The mandrel sleeve is installed on the base 1 interface 7 1, 9 to supply fuel, which communicates with the Including the outlet pipe 10, the central flow channel 10-end air port 12, the seat 1 includes a base 6 provided, the air inlet 11 is located in the upper cover seat 6, the body 7 is provided with a flange 7 and screwed The fixing ring 8 0 is close to the body 7 4 0. It is located in the central flow channel 10 and includes pieces 2 2. The bottom of the bracket 20 is fixed with a bracket 20 provided with central sleeves 2 0 1 and 2 1 1. The central shaft 2 1 1 slides inside 201 and the cone 21 The bottom end is provided with a flange 7 of the surface and the main body 7 of the base 1. The restoring piece 2 2 is provided in the bracket 2 0 2-the end is received in the inner groove 2 1 2 2 0 1 and the restoring piece 2 2 is In the recovered body 7, the oil tank 3 is a ring for the oil supply tank 3 to communicate with the oil slick chamber outward. The oil tank 3 and the venturi throat 13 are connected, and the channel 40 is connected to the venturi throat 13. Cam control The mechanism includes a cam group 50, a throttle valve group

Page 9 M242582

The upper surface of the linkage mechanism seat body 1 is in contact with the air outlet 1 of the steam valve group 5 1, the air outlet 1 2 2 and the lower arm 5 camshaft 5 0 'connecting rod 5 2 and the other end is connected to the body 7 and the horsepower adjustment is provided with an upper pipe The upper tube 3 is connected to the set of the emulsified tube 7 at the end of the tank 7 2 and the sleeve 7 3 at the oil tank. Four pipes 7 2 1 and 4 7 2 are arranged on average; the horsepower is matched with 5 2 and the convex The intake valve of the cover 8 is ventilated with the throttle valve turned 2. The throttle valve 'the connected motor 2 3, the upper 1, the upper arm 5 2 and the other end of the throttle are provided with a fixed ring 7 5 The 7 2 1, the tube 7 2 1 is connected to the tube 7 3 and the top 4 is fixed at the top 2. The inner diameter of the lower pipe is slightly larger than 3 and emulsified to eight branches and the tank 7 2 emulsified tube 7 4 adjustment ring 7 5 The body 7 and the fixed wheel set 5 〇mouth 1 1 ， convex shaft 5 of the convex component 2 1 1 pivot group 5 1 the joint 5 2 includes the arm 5 2 1-2 1 and the other end is connected to the lower arm 5 5 1 Steam-saving seat 7 2, Fixing seat 7 2 Slot 7 2 2 and the outlet pipe 'the sleeve 7 on the upper pipe 7 7 2 3 and the number seat 7 2 on the emulsified pipe 7 pipe 7 4 Down the pipe with air holes with air holes 7 The camshaft 5 〇 wheel set 5 0 body 2 1 cone surface is provided on the seat body steam valve 5 1 2 upper arm 5 2 1 end is connected to the convex pivot connected to the connecting rod 2 3 — end, the valve shaft 5 1 sleeve 7 3. The system is ring-shaped. The lower pipe 7 2 channels 40. The bottom end of the 3 communicates with 2 1. The emulsifying pipe 7 3 and the outer diameter of the lower 4. The amount of milk depends on the channel structure of the engine row. 7 2 3, sleeve 7 4 1 It is located between 5 1 and horsepower. The main body 7 1 is pivoted at the top of the cam 5 0 2. The base 6 of the section 1 controls the opening and closing of the link 5 2 of the wheel set 5 0 5 2 2-the lower arm 5 2 3 Emulsification tube 7 4 fixed seat 7 2 3 and sequentially connects the lower tube 7 2 the oil tank 3; the tube 7 4 runs through the tube 7 2 3 chemical tube 7 4 the bottom gas volume and 4 includes the upper tube 7 3 and the milk tank 7 2 Adjusting ring 7 5 and upper cover 8

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Page 10 M242582 V. Creation instructions (7) There are connected air inlet holes 7 6, 8 1 to communicate with the external air filter (not shown), and the horsepower adjustment ring 7 5 is used for angular displacement to control The air hole 7 5 1 of the horsepower adjusting ring 7 5 is aligned with the air hole 7 4 1 of the emulsifying tube 7 4 and the air inlet hole 7 6 of the main body 7. The horsepower adjusting ring 7 5 is connected to the actuating mechanism 7 7. The actuating mechanism 7 7 includes the horsepower adjusting ring 7 5 provided with a screw hole 7 5 2, the body 7 is provided with a slot hole 7 8, and a fixed screw 7 7 1 passes through the slot 7 7 of the body 7 and is screwed together. In the screw hole 7 5 2, the fixed screw 7 7 1 is connected to a vacuum valve 773. The vacuum valve 773 is connected to an engine (not shown), and the fixed screw 7 7 1 is actuated to adjust the horsepower by the vacuum suction of the engine. Ring 7 5. The actuating mechanism 7 7 is further connected to a fine adjustment mechanism 7 ^ 9. The fine adjustment mechanism 79 includes a cam 791, a rotating member 792, and an adjusting screw 7 9 3. The cam 7 9 1 is fixed on the throttle shaft 5 1 1. The rotation The part 7 9 2 is pivoted on the main body 7, and the rotating part 7 9 2 is provided with the adjusting screw 7 9 3 at the end. A stop spring 7 9 4 is provided between the rotating part 7 9 2 and the adjusting screw 7 9 3. The end of the screw 7 9 3 contacts the surface of the cam 7 9 1, and the other end of the rotating shaft member 7 9 2 is movably sleeved with the fixed screw 7 7 1 to drive the fixed screw 7 7 1 to slide in the slot 7 7 of the body 7. Please refer to the third and fourth figures. The automobile accelerator pedal drives the throttle valve shaft 5 1 1 to rotate, so that the throttle valve 5 1 2 controls the opening of the seat 1 and the opening of the seat 1 to generate the engine vacuum suction force. The change of engine speed changes the cone 21 of the Venturi tube assembly 2 to move up and down, that is, when the vacuum suction of the engine is strong, the cone 21 is sucked down by the suction.

Page 11 M242582 V. Creation Instructions (8) When the vacuum suction is weak, the cone 2 1 is pushed up by the reply piece 2 2. At the same time, the throttle shaft 5 1 1 drives the linkage mechanism 5 2 to cause the cam shaft 5 0 1 of the cam control mechanism 5 to rotate, and the cam 5 0 2 of the cam group 50 rotates accordingly. The surface of the cam 5 0 2 is different. The position contacts the top of the cone 21 to constrain the rising position of the cone 21, wherein the contact position of the top of the cone 21 and the surface of the cam 5 0 2 is obtained through the pre-test design. That is, when the engine is controlled at different speeds, its HC, C0 and Nox emissions are the lowest, and when the engine vacuum reading is the highest and stable, the cone 21 surface and the flange 7 0 of the body 7 are made The venturi throat 1 3 is maintained at the optimal clearance distance to provide the best oil output, that is, the difference in the opening degree of the throttle valve 5 1 2 is matched with the cam 5 0 2 of the cam control mechanism 5 so that The cone 21 of the variable venturi tube assembly 2 is maintained in an optimal position to achieve the most fuel-efficient, lowest pollution, and highest horsepower. In addition, the gap between the sleeve 7 3 and the emulsification tube 74 in the body 7 contains fuel due to the capillary phenomenon. The change in the vacuum suction of the engine changes the vacuum valve 773 and drives the fixed screw 771 of the actuating mechanism 77. To control the rotation of the horsepower adjustment ring 75. At low speed, the fuel only enters the emulsification tube 74 from the emulsifying tube 74 at one end of the oil tank 3, providing less fuel, and passing through the channel structure 4 to the venturi throat 13 and the air inlet 11 The air is mixed into a mixture and sent to the air outlet 1 2. When the car is driving normally, the air holes 7 5 1 of the horsepower adjustment ring 7 5 are aligned with the grooves ι 722 of the channel structure 4, as shown in the fifth figure, forming air holes 75 1, 741 is fully open, and the air enters the horsepower adjusting ring 7 5 from the air inlet 7 7 of the body 7 into the air hole 7 5 1 of the horsepower regulating ring 7 5 and then enters the air hole 7 4 1 of the emulsification tube 7 4 to make the fuel and air empty.

Page 12 M242582 V. Creative Instructions (9) The mixed gas concentration of the gas is small. When the engine is under high load or high horsepower is required for climbing, the vacuum suction of the engine is reduced, and the vacuum valve 7 7 3 drives the fixed screw 7 7 1 so that the horsepower adjustment ring 7 5 air holes 7 5 1 are no longer aligned with the tank of the channel structure 4 722, as shown in the sixth figure, the air holes 75 1 and 74 1 are formed to be closed and dislocated, and the fuel between the sleeve 7 3 and the emulsification tube 7 4 enters the tank 7 2 2 and enters from the air hole 7 4 1 of the emulsification tube 7 4. Emulsification tube 7 4 provides more fuel and thickens the mixture. At the same time, please refer to the seventh and eighth figures. The fixed screw 7 7 1 drives the rotating member 7 9 2 of the fine adjustment mechanism 7 9 to change the position of the adjustment screw 7 9 3 and the cam 7 9 1 of the fine adjustment mechanism 7 9 It also rotates with the throttle shaft 5 1 1 to finely adjust the position of the adjusting screw 7 9 3, and then control the horsepower adjustment ring 7 5 to the optimal position. Among them, the cam 7 9 1 surface of the fine adjustment mechanism 7 9 and the adjusting screw 7 9 The contact position of 3 is designed through pre-testing. Therefore, the air hole 7 5 1 of the horsepower adjusting ring 7 5 is maintained at the optimal position to provide the most appropriate engine at low, medium, high speed and full load. The fuel output is required. In the driving process of vehicles in various road conditions, you can feel the smoothness of the oil road, and because of the appropriate amount of fuel, it can save fuel and effectively control exhaust pollution. [Characteristics and Advantages of Creation] Therefore, the variable venturi tube carburetor through the vacuum automatic adjustment and cam control of this creation has the following characteristics: (1) When the steam valve is opened, the variable venturi tube The cone of the component is sucked down by the engine's true air suction, and when the mixture is insufficient, the vacuum suction of the engine is reduced, the cone is pushed up by the return piece, and the cam surface of the cam group of the cam control mechanism contacts the top of the cone cone to limit Cone up position with cam group and throttle

Page 13 M242582 movement, mixed automatization and reduction of the canal, so the district's taxi field 々 * * The mechanism makes the oil completely, please benefit, y | \ 〇 This is a good example of this creative work to make the style of the cone adjustment. The throat, the micro groove of the travelling ring conforms to the check of the degree of the tube, and it reaches up, down, and down, especially during the instantaneous catch of the stomatal regulator. The gap between the actions of the early fishing bureau can be significantly reduced. The patent of the oil is called Hui Zhigui 5. The creation explanation (ίο) The group obtains the most suitable vacuum suction force and the high horsepower state with the engine load by connecting the gap distance of the linkage mechanism. : 2) The variable Venturi tube group or release the accelerator pedal of the car and suck the cone down, so that the concentration of the gas mixture, the oil and gas ratio, and the exhaust pollution, the effect is in the city: 3) the horsepower tube in the body According to the above, the author has applied for the patent law to protect the suspicion of the rights of the creator. And the drawings are not used to limit the artist, along the special T track that should be included in this creation to maintain the best time to save fuel and exhaust pollution; 'The engine's vacuum suction is strongly separated during emergency braking. Increase to reduce the unnecessary fuel consumption. The milk cam and the adjustment screw supply of the channel structure are more accurate. As for the requirements of the application, the quasi-patent's real sense examiner has any detailed description of the specific embodiment of the creation and the characteristics of this creation, including all equivalent modifications or changes made by the familiar spirit.

M242582 Brief description of the drawings [Simplified description of the drawings] The first figure is a cross-sectional side view of a conventional Venturi tube carburetor with automatic vacuum adjustment. The second picture is a sectional side view of this creation. The third picture is a cross-sectional side view of the original creation when the mixed gas concentration is small. The fourth picture is a cross-sectional side view when the concentration of the mixed gas in this creation is large. The fifth figure is a cross-sectional top view of the air inlet of the emulsion tube of this creation. The sixth figure is a cross-sectional top view of the oil inlet of the pore of the emulsified tube. The seventh figure is a schematic plan view of the fine-tuning mechanism before the action. Figure 8 is a schematic plan view of the fine-tuning mechanism of this creation. [Representative Symbols of Components] [Knowledge], Venturi Throat 1 3 Bracket 2 0, Central Axis 21 3 > Reply 22 Central Flow Channel 10 Variable Venturi Assembly 2 > Cone 2 1 2 1 oil tank 3 ^ channel structure 4 ^ outlet pipe 4 0 ^ throttle valve shaft base 5 1] 6 ^ _ > lever 5 3 > body r flange 7 0 ^ upper cover 8 > fixing ring 8 0 ^ [This creation] Block 1

Page 15 M242582 Central flow channel 1 0 Inlet Π 1 1 Outlet D 1 2 Venturi throat 1 3 Variable Venturi tube assembly 2 Bracket 2 0 Center bushing 2 0 1 Cone 2 1 Center shaft 2 1 1 Inner groove 2 12 Return piece 2 2 Oil tank 3 Channel structure 4 V-out pipe 4 0 Cam control mechanism 5 Cam group 5 0 Cam shaft 5 0 1 Cam 5 0 2 Throttle valve group 5 1 Throttle valve shaft 5 11 Valve 5 1 2 Linkage mechanism 5 2 Upper arm 5 2 1 Connecting rod 5 2 2 Lower arm 5 2 3 Base 6 Body 7 Flange 7 0 Connected to α 7 1 Fixing base 7 2 Upper pipe 7 2 1 Tank 7 2 2 Lower pipe 7 2 3 Sleeve 7 3 Emulsifying tube 7 4 Air hole 7 4 1 Horsepower adjusting ring 7 5 Air hole 7 5 1 Screw hole 7 5 2 Air inlet 7 6 Actuating mechanism 7 7 Φ

Page 16 M242582 Simple illustration of the fixing screw 7 7 1 Vacuum valve 7 7 Slot 7 7 Fine adjustment mechanism 7 9 Cam 7 9 1 Rotator 7 9 Adjusting screw 7 9 3 Stop spring 7 9 Top cover 8 Fixing ring 8 0 In Air hole 8 1 Oil slick chamber 9

Claims (1)

M242582 6. Scope of patent application 1. A variable venturi carburetor with automatic vacuum adjustment and cam control, including: a base body with a central flow channel, one end of which is an air inlet, and the other end is Air outlet; a variable venturi tube assembly, which is located in the central flow channel and includes a bracket, a cone and a restoring member, the bracket is fixed in the seat body, the bottom end of the cone is slidably fitted to the bracket, and the cone cone surface A venturi throat is formed between the base and the body, and the restoring member is provided between the bracket and the cone; an oil groove is provided in the body; a channel structure is connected between the oil groove and the venturi throat; and a cam A control mechanism includes a cam group, a throttle valve group, and a linkage mechanism. The cam group is pivotally arranged at the air inlet of the seat body, and the cam surface of the cam group contacts the top of the cone cone surface of the variable venturi tube assembly. The throttle valve group is pivotally arranged at the air outlet of the seat body. The throttle valve of the throttle valve group controls the opening and closing of the air outlet. One end of the linkage mechanism is connected to the cam group, and the other end is connected to the steam valve group. 2. The variable venturi carburetor with automatic vacuum adjustment and cam control as described in item 1 of the scope of the patent application, wherein the seat includes a base, a body and an upper cover and are sequentially fixed, and the air inlet is located at the An upper cover, the air outlet is located on the base, a throttle shaft of the throttle group is pivoted on the base, and a cam shaft of the cam group is pivoted on the upper cover; the linkage mechanism includes an upper arm, a connecting rod and a lower arm, One end of the upper arm is connected to the camshaft, the other end of the upper arm is pivotally connected to one end of the link, the other end of the link is pivotally connected to one end of the lower arm, and the other end of the lower arm is connected to the throttle shaft. 3.Automatic vacuum adjustment and protrusion as described in item 1 of the scope of patent application Page 18 M242582 VI. Patent application scope-controlled variable Venturi tube carburetor and cover are fixed in order. The air intake base, the variable Venturi component bracket is provided with a central sleeve, the cone The body is fitted in the central sleeve, one end of the cone is received in the inner groove, and the other is provided with a flange close to the upper cover, the venturi throat, and an outlet pipe is screwed in the upper cover. The channel structure includes. 4. If the body of the variable venturi tube carburetor controlled by the first round of the patent application is provided with an interface, the oil supply tank has a fixed seat, a sleeve, an emulsified pipe and a shape, and the fixed seat is provided with an upper pipe and a containing pipe to communicate with the The outlet pipe, the lower bottom end communicates with the oil tank, and the emulsification ^ is provided in the trough, the lower pipe and the casing, and the outer diameter of the tube 'emulsion pipe bottom end 彳 1 is located in the pipeline, the tank, the lower pipe, and the casing. The horsepower adjusting ring is connected between the body and the fixed seat, and the air inlet hole communicates with the outside air to control the air holes of the horsepower adjusting ring. The seat body includes a base, an opening on the upper cover, and an air outlet. The bottom end of the bracket is fixed on the bottom of the body A central shaft is provided, an inner groove is provided at the bottom end of the central body, and the back end is sleeved on the central shaft sleeve; a fixing ring between the cone cone surface and the flange is close to the flange in the body and the outlet pipe Connect the vacuum automatic adjustment described in item 3 of the Venturi tube, wherein the oil tank is provided in the body to communicate with the oil slick chamber; the horsepower adjustment ring in the body, the fixed seat system and the lower pipe are connected in sequence, and the pipe is connected to The top end of the casing is fixed on the upper pipe, and the emulsified lower pipe and the inner diameter of the casing are slightly larger than the oil tank. The channel structure includes a "tube", an emulsified tube with air holes, a horsepower regulating carcass and an upper cover, and respectively A filter and a horsepower adjusting ring are used to locate the pores of the emulsification tube and the main body inside, and the shaft sliding composite body is formed to form a throat and a convex inward, and a ring is formed so that the upper casing tube is passed through the upper air hole of the milk. Progression of matched displacement IVIZ ^ ZJOZ IVIZ ^ ZJOZ It fits in a joint ring. Please patent the Venturi tube fine-tuning machine P π — ·, the valve body, one end of the rotating part is screwed with the wheel surface, and the other shaft is slid on the body. There are stop springs. The range carburetor mechanism includes the steam-saving slot that the adjustment end moves. The range carburetor adjustment ring is connected to the actuating mechanism. The automatic vacuum adjustment and protrusion described in item 4, wherein the actuating mechanism includes the horsepower slotted hole, a fixed screw is passed through the fixed screw connected to a vacuum valve, and the fixed screw 5 is controlled by the vacuum suction of the engine. The vacuum automatic adjustment and protrusion described above, wherein the actuating mechanism is further connected to the 3Ϊ station rotating part and the adjusting screw, and the 3Ϊ $ ΐ rotating part is pivoted on the screw cup 'adjusting screw sleeve to set the fixed screw t to contact the Convex. The cup is used to drive the vacuum selfishness described in item 6 above, in which the rotation; Lang and convex