Air-tightness detector

A detection machine and airtight technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., can solve the problem of limited space in the engine chassis

Active Publication Date: 2013-04-03
ZHEJIANG DA FENG AUTOMOBILE TECH
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Problems solved by technology

The automobile exhaust catalytic converter is installed on the engine exhaust device, and the space of the engine chassis is limited, so the catalytic converter assembly is mostly irregular, and the appearance of the catalytic converter corresponding to different engines and models is also different, which directly leads to Existing fixed airtight detection devices are difficult to test the airtightness of automobile exhaust catalytic converters

Method used

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Embodiment Construction

[0018] Such as Figure 1 to Figure 3 As shown, the air tightness testing machine includes a cylinder 1, and one end of the piston rod of the cylinder is provided with a chassis 2 that seals the catalytic converter, and the chassis 2 is provided with a gas delivery device for inputting the gas provided by the inflator into the catalytic converter. The structure also includes a pressure gauge for detecting the pressure change inside the catalytic converter after the filling is completed.

[0019] The chassis is provided with a step body 21 which is sealingly matched with the inlet and outlet ports of the catalytic converter, and a gasket 22 is provided on the step body. The air delivery structure includes an air inlet 23, an air inlet passage and an air outlet 24, the air inlet is arranged on the side wall of the chassis, the air outlet is arranged on the end face of the step body, and the air inlet passage is arranged on the side wall of the chassis. The air inlet and the air ...

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Abstract

The invention discloses an air-tightness detector. The detector comprises a cylinder, a base plate for sealing a catalytic cleaner is arranged at one end of a piston rod of the cylinder, a gas transmission structure for transmitting gas provided by an aerator into the catalytic cleaner is arranged on the base plate, and the detector further comprises a pressure gauge for detecting the pressure change inside the catalytic cleaner after aeration. The air-tightness detector is small in size, simple in operation, convenient to move and capable of detecting the air-tightness of various automobile exhaust catalytic cleaners.

Description

technical field [0001] The invention relates to the field of manufacturing automotive exhaust catalytic converters, in particular to an airtight detector. Background technique [0002] The rapid development of the automobile industry and the increasingly stringent regulations on automobile exhaust emissions have driven the industrialization of automobile exhaust catalytic converters. The air tightness of automobile exhaust catalytic converter directly affects its catalytic purification effect, so air tightness testing is an important indicator for the qualification testing of automotive exhaust catalytic converters. The automobile exhaust catalytic converter is installed on the engine exhaust device, and the space of the engine chassis is limited, so the catalytic converter assembly is mostly irregular, and the appearance of the catalytic converter corresponding to different engines and models is also different, which directly leads to It is difficult for the existing fixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 王磊王秋艳胡超张宇鹏王侠为
Owner ZHEJIANG DA FENG AUTOMOBILE TECH
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