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Test tool for air leakage of silencer of automobile engine and method of test tool

A technology for automobile engines and mufflers, which is applied in the direction of measuring the acceleration and deceleration rates of fluids and using liquid/vacuum for liquid tightness measurement, etc. Problems such as difficulty in loading and unloading of muffler detection equipment, to achieve the effect of improving the sealing performance of the socket and the simple structure

Active Publication Date: 2019-03-22
宁波远亚车辆检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The muffler is an important part of the automobile engine. The air tightness test of this part is an important part of the testing process. The existing muffler testing equipment is either difficult to assemble and disassemble, or its own airtightness cannot be guaranteed. The confidentiality requirements are met

Method used

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  • Test tool for air leakage of silencer of automobile engine and method of test tool
  • Test tool for air leakage of silencer of automobile engine and method of test tool
  • Test tool for air leakage of silencer of automobile engine and method of test tool

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] as attached Figures 1 to 8 The shown automobile engine muffler air leakage inspection tool includes a vertical air tightness detection cylinder 11, a liquid injection pumping unit, a pressurized air injection unit 26 and a muffler body 38 under test;

[0028] The tested muffler body 38 is detachably installed in the tested muffler body 38, and the pressurized air outlet end of the pressurized air injection unit 26 is connected to the air inlet end of the air tightness detection cylinder 11 through the air injection pipe 9 ; The liquid injection and pumping unit communicates with the lower end of the liquid cavity 6 in the air tightness detection cylinder 11 through the liquid communication pipe 2 .

[0029] The liquid injection and pumping unit includes a vertical liquid injection cylinder 13, a hollow plunger cylinder 18 is arranged in the liquid injection cy...

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Abstract

The invention discloses a test tool for air leakage of a silencer of an automobile engine and a method of the test tool. The test tool comprises a vertical air impermeability detection cylinder, a liquid injection and pumping unit, a pressure boost air injection unit and a tested silencer body; the tested silencer body is detachably installed in the air impermeability detection cylinder, and the pressure boost air outlet end of the pressure boost air injection unit is communicated with the air inlet end of the air impermeability detection cylinder through an air injection pipe; the liquid injection and pumping unit is communicated with the lower end of a liquid cavity in the air impermeability detection cylinder through a liquid communication pipe. The test tool is simple in structure, andthe outer wall of an air discharging cylinder and the inner wall of the wall body of an inner annular column are converted into sealing fit without air leakage from conveniently-detached clearance fit. The test tool is beneficial to a tool of the tested silencer and also helps to improve the sleeving sealing performance in the detection process.

Description

technical field [0001] The invention belongs to the field of muffler detection, and in particular relates to an air leakage detection tool for an automobile engine muffler and a method thereof. Background technique [0002] The muffler is an important part of the automobile engine. The air tightness test of this part is an important part of the testing process. The existing muffler testing equipment is either difficult to assemble and disassemble, or its own airtightness cannot be guaranteed. The confidentiality requirements are met. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a gas leak detection tool for an automobile engine muffler with good airtightness and a method thereof. [0004] Technical solution: In order to achieve the above object, the automobile engine muffler air leakage inspection tool of the present invention includes a vertical air tightness detection ...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 崔云兰
Owner 宁波远亚车辆检测有限公司
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