Motorcycle V-shaped double-cylinder engine throttle valve body assembly

Abstract

The utility model relates to the technical field of motorcycle engines, and discloses a motorcycle V-shaped double-cylinder engine throttle valve body assembly which comprises two independent air inlet channels and a bypass air channel, the bypass air channel controls the air inflow through an adjusting controller, and the motorcycle V-shaped double-cylinder engine throttle valve body assembly is characterized in that the outer walls of the two air inlet channels are tightly attached together; the bypass air channel is tightly attached to the position over the attaching position of the two air inlet channels. The engine air inlet system is more compact, the engine performance is stable, and the output consistency of the V-shaped engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle engines, in particular to a throttle valve body assembly of a V-type twin-cylinder motorcycle engine. Background Art

[0002] With the continuous development of motorcycle technology, V-twin engines have gained widespread adoption in the motorcycle industry due to their well-balanced powertrain, low vibration, and rich sound. As a crucial component of engine operation, the intake system's performance directly impacts engine power output, fuel economy, emissions, and reliability. Therefore, optimizing the design of the V-twin throttle body to improve its performance is crucial.

[0003] An engine's throttle body, also known as the throttle valve, acts as a conduit between the air intake and the engine's combustion chamber. Its primary function is to regulate airflow, which is crucial for maintaining the proper air-fuel ratio required for efficient combustion. When the driver depresses the accelerator pedal, the throttle body opens, allowing more air to enter the engine, generating more power and accelerating the vehicle. Conversely, releasing the accelerator pedal causes the valve to partially or completely close, reducing airflow and slowing the vehicle.

[0004] Chinese patent document CN210509401U discloses a motorcycle throttle with circulating air supply and adjustable air pressure balance, including a valve body with two intake chambers, a rotatable valve plate is provided in the valve body to separate the intake chamber into a front chamber and a rear chamber, the rear chamber of each intake chamber is provided with a bypass hole, an idle motor is provided on the valve body to control the intake variable of the bypass hole, the rear chamber of each intake chamber is provided with a rear through hole for air intake, and an adjustment controller is provided on the valve body to control the intake constant of the rear through hole. The adjustment controller includes a convex portion and an adjusting screw threadedly connected to the convex portion, and the rod of the adjusting screw extends into the connecting channel.

[0005] This prior art has the following deficiencies: the overall structure of the existing engine throttle body is not compact enough, and the layout of the two intake cavities and the bypass air duct makes the volume of the throttle body large, thereby increasing the overall volume of the engine. Utility Model Content

[0006] In order to solve the technical problem of miniaturization of the throttle body, the utility model provides a throttle body assembly for a motorcycle V-twin engine, comprising two independent intake channels and a bypass air channel, wherein the bypass air channel controls the intake amount by adjusting a controller, and is characterized in that the outer walls of the two intake channels are tightly attached together, and the bypass air channel is tightly attached to directly above the joint of the two intake channels.

[0007] Furthermore, the two air intake passages and the bypass air passage are arranged in parallel.

[0008] In order to balance the gas flow of two intake passages, the bypass air channel is communicated with the two intake passages through two branch pipes respectively, and an adjusting screw is arranged in each branch pipe, and the tip of the adjusting screw can be inserted into the intake passage.

[0009] Preferably, the middle part of the adjusting screw transversely passes through the bypass air channel, and the end part is arranged in the branch pipe.

[0010] In order to reduce the overall volume ratio, the installation positions of the two adjusting screws are respectively located obliquely above the two intake passages, and the adjusting screws are arranged obliquely.

[0011] In order to facilitate repeated adjustment of the intake amount of the bypass air channel, a locking spring is arranged on the adjusting screw.

[0012] In order to facilitate control of the intake amount of the bypass air channel, the bypass air channel is communicated with the air cylinder intake pipe through a through hole, and the adjusting controller is arranged in the bypass air channel, and the adjusting controller moves transversely in the bypass air channel to change the cross-sectional area of the through hole.

[0013] The utility model has the following beneficial effects:

[0014] 1. Under the premise of ensuring the normal performance of the throttle valve body, the utility model optimizes the design structure, makes the engine intake system more compact, the system control more accurate, and ensures the stable performance of the engine.

[0015] 2. The utility model improves the consistency of the V-type engine output. When the manufacturing and processing dispersion causes the flow deviation of the two passages, the intake passage cross-sectional area can be changed by adjusting the screw position, so that the flow of the two cylinders tends to be the same, and the consistency of the engine power output is improved.

[0016] 3. Part of the air can directly enter the front and rear cylinders of the V-type engine through the bypass air channel, or enter the front and rear cylinders through the two intake passages. The stepping motor in the bypass air channel adjusts the air amount entering the intake pipe in real time by controlling the cross-sectional size of the through hole, so as to realize stable and accurate control of the engine idle speed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an installation structure schematic view of the motorcycle V-type double-cylinder engine throttle valve body assembly of the utility model;

[0018] Figure 2 It is a structure schematic view of the intake passage and the bypass air;

[0019] Figure 3 It is Figure 2 the left view;

[0020] Figure 4The utility model is a cross-sectional view of a throttle body assembly of a V-twin-cylinder motorcycle engine. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The reference numerals in the drawings of the specification include: intake channel 1, bypass air channel 2, regulating valve 3, stepper motor 4, cylinder head 5, branch pipe 6, adjusting screw 7, locking spring 8, sealing ring 9, through hole 10, cylinder intake pipe 11.

[0023] Example 1

[0024] like Figures 1-4 The figure shows a throttle body assembly for a V-twin motorcycle engine, comprising two independent intake channels 1 and a bypass channel 2. A regulating valve 3 is provided within each intake channel 1, and the bypass channel 2 controls the intake air volume via a regulating controller. The outer walls of the two intake channels 1 are closely attached to each other, and the bypass channel 2 is directly above the joint of the two intake channels 1. The two intake channels 1 and the bypass channel 2 are arranged in parallel. The throttle body assembly is mounted on the engine's cylinder head 5. Both the intake channel 1 and the bypass channel 2 are used to connect the front and rear cylinders of the V-twin engine.

[0025] The bypass air passage 2 is connected to the two intake passages 1 through two branch pipes 6 , and an adjusting screw 7 is inserted into the two branch pipes 6 . The adjusting screw 7 is threadedly connected to the throttle body assembly.

[0026] The middle part of the adjusting screw 7 passes through the bypass air duct 2 horizontally, and the end of the adjusting screw 7 is inserted in the branch pipe 6. The adjusting screw 7 can be rotated to move up and down in the branch pipe 6. The tip of the adjusting screw 7 can be inserted into the intake channel 1 to change the cross-sectional area of ​​the intake channel 1 and thus change the intake volume.

[0027] The installation positions of the two adjusting screws 7 are respectively located obliquely above the two air inlet passages 1 , and the adjusting screws 7 are arranged at an angle.

[0028] The adjusting screw 7 is sleeved with a locking spring 8 and a sealing ring 9 .

[0029] The bypass air duct 2 is connected to the cylinder air intake pipe 11 by the through hole 10. The regulating controller is arranged in the bypass air duct 2. The regulating controller adopts a stepping motor 4. The stepping motor 4 and the through hole are located in the same position of the bypass air duct 2. The stepping motor 4 moves laterally in the bypass air duct 2 to block the size of the through hole 10 and change the cross-sectional area of ​​the through hole 10.

[0030] The above-mentioned is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, the ordinary skilled person in the art can improve and implement the present scheme under the enlightenment given in the present application, and some typical known structures or known methods should not become an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that for the skilled person in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A throttle body assembly for a V-twin motorcycle engine, comprising two independent intake passages and a bypass passage, wherein the bypass passage controls the intake air volume through an adjusting controller, characterized in that: The outer walls of the two air intake channels are closely attached to each other, and the bypass air channel is closely attached to the upper part of the joint of the two air intake channels.

2. The throttle body assembly of a motorcycle V-twin engine according to claim 1, characterized in that: The two air intake passages and the bypass air passage are arranged in parallel.

3. The throttle body assembly of a motorcycle V-twin engine according to claim 2, characterized in that: The bypass air passage is connected to the two intake passages through two branch pipes respectively. Adjustment screws are inserted into the two branch pipes, and the tips of the adjustment screws can be inserted into the intake passages.

4. The throttle body assembly of a motorcycle V-twin engine according to claim 3, characterized in that: The middle portion of the adjusting screw passes through the bypass air passage transversely, and the end portion is inserted into the branch pipe.

5. The throttle body assembly of a motorcycle V-twin engine according to any one of claims 3 and 4, characterized in that: The installation positions of the two adjusting screws are respectively located obliquely above the two air inlet passages, and the adjusting screws are arranged obliquely.

6. The throttle body assembly of a motorcycle V-twin engine according to claim 5, characterized in that: A locking spring is sleeved on the adjusting screw.

7. The throttle body assembly of a motorcycle V-twin engine according to claim 6, characterized in that: The bypass air passage is connected to the cylinder air intake pipe via a through hole. The regulating controller is arranged in the bypass air passage. The regulating controller moves laterally in the bypass air passage to change the cross-sectional area of ​​the through hole.

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