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Automobile engine muffler gas leak detection tool and method thereof

A technology of automobile engine and muffler, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, etc., which can solve the problem that the sealing performance cannot be guaranteed, easy tooling and air tightness requirements are met, Problems such as difficult loading and unloading of the muffler detection equipment have achieved the effect of simple structure and improved socket sealing performance

Active Publication Date: 2020-11-20
宁波远亚车辆检测有限公司
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  • 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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  • Automobile engine muffler gas leak detection tool and method thereof
  • Automobile engine muffler gas leak detection tool and method thereof
  • Automobile engine muffler gas leak detection tool and method thereof

Examples

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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 muffler body 38 under test is detachably installed in the air tightness detection cylinder 11, and the pressurized gas outlet end of the pressurized gas injection unit 26 is connected to the air intake of the air tightness detection cylinder 11 through the gas injection pipe 9. end; 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 l...

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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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Patent Type & Authority Patents(China)
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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