Throttle valve structure

A throttle body and valve body technology, which is applied in engine control, machine/engine, mechanical equipment, etc., can solve the problems that cannot meet the performance requirements of small displacement engines, large inner diameter, slow speed, etc., to meet the intake speed and The effect of air intake requirement, sufficient air intake, and easy processing

Inactive Publication Date: 2012-08-08
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used throttle body supplies air to the engine through its central hole as an airflow channel. The inner diameter of the airflow channel is large and almost equal in diameter. Although the air intake is large, the speed of airflow through the throttle body is relatively slow. , can only be applied to large-displacement engines such as 250ml and 400ml, and cannot meet the performance requirements of small-displacement engines

Method used

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  • Throttle valve structure
  • Throttle valve structure
  • Throttle valve structure

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:

[0011] like figure 1 , figure 2 As shown, the central hole of the valve body 1 of the EFI throttle body is an air flow passage, and the central hole is composed of an inlet cone section 1a, a transition section 1b and an outlet cone section 1c, wherein the transition section 1b is located between the inlet cone section 1a and the outlet cone section. Between 1c, the transition section 1b is a straight section of equal diameter with an inner diameter of 30mm. The inlet cone section 1a is connected with the air filter, the inlet cone section 1a is a bell mouth structure, and the small end is connected with the transition section 1b. The length of the inlet cone section 1a is 11-17mm, preferably 14mm in this embodiment; the taper of the inlet cone section 1a relative to the axis of the valve body 1 is 5-8°, preferably 6° in this embodiment. The outlet cone ...

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Abstract

The invention discloses a throttle valve structure, which comprises a valve body (1). A central hole of the valve body (1) consists of an inlet cone section (1a), a transition section (1b) and an outlet cone section (1c), wherein the transition section (1b) is a unidiameter straight section and is positioned between the inlet cone section (1a) and the outlet cone section (1c); the inlet cone section (1a) and the outlet cone section (1c) both have a bell-mouth structure; the length of the inlet cone section (1a) is between 11 and 17 millimeters, and the conical degree is between 5 and 8 degrees; and the length of the outlet cone section (1c) is between 17 and 23 millimeters, and the taper is between 3 and 6 degrees. The throttle valve structure meets the requirements of the air inlet speedand air inflow of small-displacement engines by changing a structure of the central hole of the valve body, and has the characteristics of ingenious design, simple structure, easy machining, strong generality and the like.

Description

technical field [0001] The invention belongs to the technical field of motorcycles, and in particular, particularly relates to an EFI throttle body on a motorcycle. Background technique [0002] The EFI throttle body is a key component of the motorcycle's electronically controlled fuel injection system, which is connected between the air filter and the engine intake pipe. The angular position signal is fed back to the electronic control unit. At present, the commonly used throttle body supplies air to the engine through its central hole as an air flow channel. The inner diameter of the air flow channel is large and almost equal diameter. Although the intake volume is large, the air flow through the throttle body is relatively slow. , can only be applied to 250ml, 400ml and other large-displacement engines, and cannot meet the performance requirements of small-displacement engines. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D9/08
Inventor 鄢志钢杜礼超杜慎之李伟肖
Owner 力帆科技(集团)股份有限公司
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