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Air leakage test method and air leakage test device

A test method and a test device technology, which are applied in the field of air leakage devices and can solve problems such as falling

Active Publication Date: 2020-09-01
TOYOTA BOSHOKU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, with the gasket sticking to the test bench, when the gasket product is lifted after the test, the gasket remains on the test bench and falls from the groove of the product

Method used

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  • Air leakage test method and air leakage test device
  • Air leakage test method and air leakage test device
  • Air leakage test method and air leakage test device

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Embodiment Construction

[0016] This specification provides a comprehensive understanding of the methods, devices and / or systems described. Modifications and equivalents of the described methods, devices and / or systems will be apparent to those skilled in the art. The order of operations is exemplary and may be changed as would be apparent to those skilled in the art, except for operations that must occur in a certain order. Descriptions of functions and configurations well known to those skilled in the art may be omitted.

[0017] Exemplary embodiments may have different forms and are not limited to the illustrated examples. Rather, the illustrated examples are thorough and complete, and will convey the full scope of the disclosure to those skilled in the art.

[0018] A gas leak testing method and a gas leak testing device 20 according to an embodiment will now be described with reference to the accompanying drawings.

[0019] First, a schematic structure of a gasket product P1 as a test object o...

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PUM

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Abstract

The invention relates to an air leakage test method and an air leakage test device. In the air leakage test method, the gasket product includes a product having a hollow portion and a groove and an elastic gasket mounted to the product. The gasket is installed to the product by being partially fitted to the groove. The gasket product is the test object. In the air leakage test method, the gasket product is installed on the test bench while the gasket is brought into contact with the installation surface of the test bench. When the gasket product is pressed against the test bench, the gasket product is tested for air leakage according to a change in the state of compressed air supplied to the hollow portion. Subsequently, the gasket is separated from the test bench by applying a force to the product in a direction along the installation surface. Subsequently, the gasket product is removed from the test bench by lifting the gasket product.

Description

technical field [0001] The following description relates to apparatus and methods for testing gasket products for air leakage. Background technique [0002] In some cases, air leak tests are performed on products fitted with elastic gaskets. The product includes a hollow portion having an opening, and includes a groove formed in an outer periphery of the opening. For example, the product is a cylinder head cover for an engine. The gasket is mounted to the product by partially fitting into the groove. [0003] Gas leak testing is performed on gasket products where the gasket is installed on the product. First, the gasket product is mounted on the test bench with the gasket in contact with the mounting surface of the test bench. With the gasket product pressed against the test stand, air is supplied to the hollow portion of the product. The air leak test is performed according to changes in the state of the air, such as the degree of pressure drop in the hollow portion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02G01M3/26
CPCG01M3/025G01M3/26
Inventor 垣本贵裕藤田繁鉱
Owner TOYOTA BOSHOKU KK