CN214196489U - Hand-adjusting throttle valve body - Google Patents
Hand-adjusting throttle valve body Download PDFInfo
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- CN214196489U CN214196489U CN202021497193.3U CN202021497193U CN214196489U CN 214196489 U CN214196489 U CN 214196489U CN 202021497193 U CN202021497193 U CN 202021497193U CN 214196489 U CN214196489 U CN 214196489U
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Abstract
A hand-operated throttle body comprises a body, a throttle plate, a rotating wheel and an idling air quantity adjusting device, wherein the body comprises a bypass air flow channel and an air inlet main channel. The idling air quantity adjusting device comprises a mounting seat, an air quantity adjusting rod and a locking spring, wherein the air quantity adjusting rod is mounted on the mounting seat through threads, and the idling air quantity air inflow is controlled by adjusting the screwing-in depth. The loosening spring is installed on the air quantity adjusting rod, so that the air quantity adjusting rod is stressed axially, and the phenomenon that the idle air quantity is influenced due to the fact that the air quantity adjusting rod is loosened due to vibration is avoided.
Description
Technical Field
The invention belongs to the field of engine end electric control fuel injection, and particularly relates to a throttle body used for a fuel injection system.
Background
The electric control fuel injection technology is an important technology for improving the performance of automobiles and motorcycles and achieving more and more strict various emission standards, and the system mainly comprises an electronic fuel injection unit, an engine End Control Unit (ECU), a throttle body and the like. The throttle body is an air inlet throttle device at the end of an electric control fuel injection gasoline engine, is used for controlling the load at the end of the engine, and realizes closed-loop control through a position sensor of the throttle body.
In addition, the throttle body is provided with an idling bypass channel to meet the air inflow requirement under the idling working condition, and in the prior art, the opening degree of the bypass channel is usually controlled by a stepping motor to achieve the control of the air-fuel ratio under the idling state and achieve the purposes of energy conservation and emission reduction.
However, for the system, the idle air quantity does not need to be adjusted frequently, and the use frequency of the stepping motor is very small, so that the adoption of the stepping motor as a way of adjusting the idle air quantity will cause the cost to rise both for production and after sale, and particularly for motorcycles or general-purpose machines with small profit margins, the implementation difficulty is undoubtedly increased.
Disclosure of Invention
The utility model discloses the application is to above-mentioned problem, and its aim at provides an adaptation has current electronic throttle fuel oil system, the hand regulation formula throttle body that development cost is low.
In order to achieve the purpose, the utility model adopts the following technical proposal: a hand-regulating throttle body comprises a body, a throttle plate, a rotating wheel and an idling air quantity regulating device.
The body includes bypass air runner, air inlet main passageway, empty filter end joint and engine end joint. The bypass air flow passage comprises an air inlet hole, and air flow enters from the air inlet hole, passes through the bypass air flow passage, finally converges into the air inlet main passage and flows to one end of the engine end connector.
The idling air flow adjusting device comprises a mounting seat, a bypass air flow channel, an air flow adjusting rod and a locking spring. The mounting seat is a flange surface with a fixing hole, and the idling air quantity adjusting device is fastened on the body through bolts.
The mounting base comprises a central mounting hole with threads, the air quantity adjusting rod is mounted in the central mounting hole of the mounting base through the threads and extends into the air inlet hole, and the idling air quantity adjusting device is screwed in the depth adjusting bypass air inflow through controlling the air quantity adjusting rod. The loosening spring is installed on the air quantity adjusting rod and limited between the installation seat and the adjusting rod, so that the air quantity adjusting rod is axially stressed, and the phenomenon that the idle air quantity is influenced due to the fact that the air quantity adjusting rod is loosened due to vibration is avoided.
The following technical scheme is further optimized or supplemented to the technical scheme.
The end of the air flow adjusting rod comprises a conical section. The air inlet hole is matched with the conical section, when the air quantity adjusting rod is adjusted towards the air inlet hole, the gap between the air quantity adjusting rod and the air inlet hole changes from large to small, and therefore adjustment of air inflow in idling is achieved.
The taper section of the air flow adjusting rod comprises a first adjusting section and a second adjusting section, and the taper of the second adjusting section is larger than that of the first adjusting section, so that the linear correlation between the adjusting quantity and the air inflow of the bypass air flow channel is realized.
Furthermore, the idling air volume adjusting device comprises an adjusting handle, and the adjusting handle and the air volume adjusting rod are integrally designed. The adjusting handle comprises an anti-skid gear-shaped head and a spring plate with convex points. The mount pad includes a gear form ring post coaxial with central mounting hole, and the teeth of a cogwheel is towards adjustment handle's salient point department, in the tooth's socket is gone into to the salient point card for fixed adjustment handle.
The adjusting handle comprises an adjusting groove which is used for fixing the tool. The adjustment is convenient to be realized by means of tools in the arrangement environment with narrow space, such as a straight screwdriver and the like.
The following technical solutions further define or optimize the present application.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a manual throttle body assembly provided by the present invention.
Fig. 2 is a sectional view of the idle air volume adjusting device of the manual throttle body according to the present invention.
Fig. 3 is a three-dimensional view structure of the idle air volume adjusting device of the manual throttle body according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The utility model provides a hand regulation formula throttle body assembly structure sketch map, as shown in FIG. 1, including body 100, throttle plate 102, runner 103, idle tolerance adjusting device 1, sensor device 109.
The body 100 includes a bypass air flow passage 104, an intake main passage 106, an air filter end fitting 105, an engine end fitting 101 and a flanged end face 107 having a threaded bore 107 a. The main intake passage 106 is divided by the throttle plate 102. The bypass air flow passage 104 includes an initial air flow passage 104a, an air inlet hole 108 and a rear air flow passage 104b, the initial air flow passage 104a is communicated with the main air inlet passage at one end of the air filter end joint 105 and communicated with the rear air flow passage 104b through the air inlet hole 108, and the rear air flow passage 104b is communicated with the main air inlet passage at one end of the engine end joint 101. The air flow branched from the air filter end joint 105 end air inlet main channel enters the air inlet hole 108 through the initial air inlet flow passage 104a, flows through the rear end air inlet flow passage 104b and then is converged into the engine end joint 101 end air inlet main channel.
Above-mentioned, the throttle body of hand regulation formula, empty filter end joint 105 and engine end joint 101 all design for circular pipe connector, and this more is favorable to reducing the size of throttle body, reduces its cost.
The cross-sectional view of the idle air volume adjusting device 1 of the manual throttle body is shown in fig. 2, and includes a mounting base 200, an air volume adjusting rod 204, and a locking spring 202. The mounting seat 200 is a flange surface 201 with a fixing hole 201a, and is matched with the flange end surface 107 of the body 100, and the idle air amount adjusting device 1 is fastened on the body 100 by fastening bolts 206.
The mounting base 200 includes a central mounting hole 205 with threads, the air volume adjusting rod 204 includes a threaded section 204a and is mounted in the central mounting hole 205 of the mounting base 200 through threads, and the end of the air volume adjusting rod 204 extends into the air inlet hole 108. The anti-loosening spring 202 is mounted on the air quantity adjusting rod 204 and limited between the mounting seat 200 and the adjusting rod 204, so that the air quantity adjusting rod 204 is axially stressed, and the idle air quantity is prevented from being influenced due to the fact that threads are loosened due to vibration. The air volume adjusting rod 204 is sealed with the outside by a sealing ring 203, and the body 100 and the mounting seat 200 are sealed by a sealing ring 207, so that air entering the bypass air flow passage 104 is prevented from leaking.
The throttle plate 102 is provided with at least one through hole for controlling the minimum flow area of the main flow passage. The scheme can ensure that the idling air inflow changes slowly as much as possible in the process that the idling air inflow of the throttle body is continuously reduced due to the pollution of deposits such as carbon deposition and the like.
Fig. 3 shows a three-dimensional view of an idle air volume adjusting device 1 of a manual throttle body according to the present invention. The end of the air adjustment rod 204 includes a tapered section 300. The air inlet hole 108 is matched with the conical section 300, when the air quantity adjusting rod 204 is adjusted towards the air inlet hole 108, the gap between the air quantity adjusting rod 204 and the air inlet hole 108 changes from large to small, and therefore adjustment of air inflow in idling is achieved. The diameter of the large end of the conical section 300 of the air volume adjusting rod 204 is not smaller than the aperture of the air inlet hole 108.
The taper section 300 of the air volume adjusting rod 204 comprises a first adjusting section 300a and a second adjusting section 300b, and the taper of the second adjusting section 300b is larger than that of the first adjusting section 300a, so as to realize the linear correlation between the adjusting volume and the air intake volume of the bypass air flow passage 104.
Further, the idle air volume adjusting device 1 includes an adjusting handle 301, and the adjusting handle 301 and the air volume adjusting rod 204 are integrally designed. The adjustment handle 301 comprises a non-slip gear-shaped head 301a and a spring plate 302 with a convex point 302 a. The mounting base 200 comprises a gear-shaped ring column 303 coaxial with the central mounting hole 205, the gear teeth 303a face a salient point 302a of the adjusting handle 301, and the salient point 302a is clamped in a tooth groove of the gear teeth 303a and used for fixing the adjusting handle 301.
The adjustment handle 301 includes an adjustment slot 301b, and the adjustment slot 301b is used for tool fixing. The adjustment is convenient to be realized by means of tools in the arrangement environment with narrow space, such as a straight screwdriver and the like.
The above embodiments are merely for illustrating the essence of the present invention, but do not limit the application of the present invention. Any modifications, simplifications, or other alternatives made without departing from the principles of the present application are intended to be included within the scope of the present application.
The parts not referred to in this application are the same as or can be implemented using prior art.
Claims (6)
1. The utility model provides a hand regulation formula throttle body, includes a body, a throttle plate, a runner, an idle tolerance adjusting device, the body includes bypass air runner and main entrance that admits air, a serial communication port, idle tolerance adjusting device includes mount pad, tolerance adjusting lever, locking spring, the tolerance adjusting lever passes through the screw thread and installs on the mount pad, twists the degree of depth through control tolerance adjusting lever and adjusts the bypass air input, locking spring mounting is on the tolerance adjusting lever for tolerance adjusting lever axial atress prevents that the tolerance adjusting lever from leading to the screw thread not hard up because of vibrations, influences the idle tolerance.
2. The hand-adjusted throttle body of claim 1, wherein the bypass air flow passage includes an intake aperture, and wherein the air volume adjustment stem extends into the intake aperture.
3. The hand-adjusted throttle body of claim 2, wherein the end of the air volume adjusting lever comprises a conical section, the air inlet hole is matched with the conical section, when the air volume adjusting lever is adjusted towards the air inlet hole, the gap between the air volume adjusting lever and the air inlet hole changes from large to small, thereby realizing the adjustment of air intake amount during idling.
4. The hand-adjusted throttle body of claim 3, wherein the tapered section of the air volume adjustment lever comprises a first adjustment section and a second adjustment section, and the taper of the second adjustment section is greater than the taper of the first adjustment section to achieve a linear correlation between the adjustment volume and the intake air volume of the bypass air flow passage.
5. The hand-regulated throttle body according to any one of claims 1-4, characterized in that it comprises an adjustment handle, which is designed integrally with the air quantity adjustment lever.
6. The hand-adjusted throttle body of claim 5, wherein the adjustment handle includes an adjustment slot for tool retention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497193.3U CN214196489U (en) | 2020-07-27 | 2020-07-27 | Hand-adjusting throttle valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497193.3U CN214196489U (en) | 2020-07-27 | 2020-07-27 | Hand-adjusting throttle valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196489U true CN214196489U (en) | 2021-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021497193.3U Active CN214196489U (en) | 2020-07-27 | 2020-07-27 | Hand-adjusting throttle valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214196489U (en) |
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2020
- 2020-07-27 CN CN202021497193.3U patent/CN214196489U/en active Active
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