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Throttle valve opening sensor

A throttle valve opening, throttle valve technology, applied in the testing of instruments, machines/engines, machines/structural components, etc., can solve the problem of hindering the reduction of the manufacturing cost of the throttle valve, increasing the weight of the throttle valve body 10, etc. question

Inactive Publication Date: 2003-07-30
HITACHI ASTEMO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in the number of parts and the number of assembly steps hinders the reduction of throttle valve manufacturing costs
[0019] In addition, the throttle body 10 needs to be provided with the flanges of the support portions 10E, 10F facing the mounting flanges 14B, 14C, which increases the weight of the throttle body 10.

Method used

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  • Throttle valve opening sensor
  • Throttle valve opening sensor
  • Throttle valve opening sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Below, use figure 1 , figure 2 Embodiments of the throttle valve opening sensor of the present invention will be described.

[0034] figure 1 It is a side view of the throttle opening sensor installed on the throttle body, figure 2 for figure 1The longitudinal sectional view of the main parts of the J-J line. 1 is a throttle valve body with an air intake passage 2 penetrated inside, and a throttle valve shaft 3 traverses the air intake passage 2, and the throttle valve shaft is rotatably supported in the throttle valve shaft hole of the throttle valve body 1 In 1A, the intake passage 2 is opened and closed by a butterfly throttle valve 4 attached to a throttle shaft 3 . figure 2 The throttle shaft hole 1Aa on the left is opened outward through the cylindrical guide hole 1C on the left end surface 1B of the throttle body 1, so the diameter of the cylindrical guide hole 1C is larger than that of the left throttle shaft hole 1Aa. .

[0035] figure 1 The thro...

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PUM

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Abstract

The present invention provided a throttle opening sensor. A casing 5 is, on its one end face 5A, equipped with a single collar 5B which extends to the direction C which is at right angle to the longitudinal axis centerline B-B of a rotor 6 and a single mounting hole 5C which penetrates the collar 5B is perforated. Furthermore, a protruding guide tube 5D is formed concentric to the longitudinal axis centerline B-B of the rotor 6 and a seal ring 7 is positioned on its outer periphery. The end face 5A of the casing 5 is located on the throttle body 1 and the guide tube 5D is inserted into a tube guide hole 1C which is formed concentric to a throttle axis 3 to which a throttle valve 4 is installed. The casing 5 is screwed to the throttle body 1 through the mounting hole 5C of the collar 5B. The invention has excellent installability to motorcycles of small or middle size and reduce manufacturing cost of a throttle body which includes the throttle opening sensor.

Description

technical field [0001] The invention relates to a throttle valve opening sensor which is installed on a throttle valve body, a potentiometer and a throttle valve rotate in linkage, and outputs a voltage signal proportional to the throttle valve opening. Such an opening sensor can be used to detect the opening of a throttle valve for controlling the flow rate of air in a fuel injection device, or for detecting the opening degree of a throttle valve for a carburetor that adjusts the flow rate and concentration of an air-fuel mixture supplied to an engine. Background technique [0002] The current throttle valve opening sensor such as image 3 and Figure 4 shown. [0003] image 3 It is a side view of the throttle opening sensor installed on the throttle body. [0004] Figure 4 for image 3 A longitudinal sectional view of the main part of the A-A line. [0005] Hereinafter, it will be described based on the accompanying drawings, 10 is a throttle valve body through which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D35/00F02D11/10F02M69/16G01B7/30G01M99/00G02B7/30
CPCF02D11/106
Inventor 吴武夫
Owner HITACHI ASTEMO LTD