Oil filter bypass valve opening pressure gas detection device

Abstract

The invention discloses an oil filter bypass valve opening pressure gas detection device, which comprises a base, a lower mould fixedly installed on the base, a washer arranged between the lower mould and the base, an inflation disk arranged above the lower mould, an air cylinder whose piston rod is connected with the top end of the inflation disk and an air channel. According to the invention, pressure is applied to a spring of a bypass valve by adopting air inlet of the inflation disk, and the bypass valve is opened to realize quick air inlet when external air inlet pressure is greater than an elastic force of the spring; and the inflation disk is pressed against on the lower mould by adopting the air cylinder so as to enable the inflation disk to be hermetically connected with the lower mould, so that the air does not flow out from a gap between the inflation disk and the lower mould when the inflation disk inflates. The air is taken as a test medium to carry out the test, the device is small in size, simple in structure and convenient to use, detection is carried out at a normal temperature, tested and qualified bypass valve parts can be used, and the input cost and the detection cost of the device are low.

Description

technical field [0001] The invention relates to a component detection in an engine accessory, more specifically, to the detection of the opening pressure of a bypass valve in a filter core component of an oil filter. Background technique [0002] The function of engine oil is to form a lubricating oil film on the friction surface of each moving part of the engine to lubricate, reduce the frictional resistance between relative moving parts in the engine, and reduce the wear of parts. However, the engine oil itself contains a certain amount of colloid, impurities, water and additives. At the same time, during the working process of the engine, the metal wear debris, the entry of impurities in the air, and the generation of oil oxides make the impurities in the engine oil Gradually increase. If the engine oil directly enters the lubricating oil circuit without being filtered, the sundries contained in the engine oil will be brought to the friction surface of the moving pair, w...

AI Technical Summary

Problems solved by technology

The equipment is bulky, complex in structure, and expensive to manufacture, and the tested engine oil needs to be heated, and the test parts used after the test are scrapped due to oil

Due to the high cost of equipment investment and testing, some oil filter manufacturers choose not to use this equipment or reduce the frequency of use of this equipment

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