A key pressure measurement method of lubrication system
A measurement method and lubrication system technology, which can be used in pressure-lubricated lubrication safety devices, internal combustion engine testing, etc., can solve problems such as losses, and achieve the effect of optimizing manufacturing quality
Active Publication Date: 2017-06-30
SAIC-GM-WULING AUTOMOBILE CO LTD
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Problems solved by technology
Irreparable damage may have occurred at this time
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Embodiment 1
[0035] Example 1: During the development process, the pressure of all measured points in the pipeline was too high. It was directly analyzed that the oil pump was working abnormally. When the oil pump was disassembled and checked, it was found that the pressure relief valve was stuck and the pressure could not be released normally.
Embodiment 2
[0036] Embodiment 2: In actual application, it happened that the engine intake and exhaust VVTs did not work. The oil pressure monitoring shows that there is no pressure in the inlet and outlet OCV valve inlet passages. Then the problem is locked as the blockage of the oil passage. After checking the parts, it is found that the oil inlet passages of the OCV on both sides are not drilled through, and it is solved after replacing the qualified parts.
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The invention relates to the field of engine lubrication systems, in particular to a method for measuring key pressure of a lubrication system. The invention provides a method for measuring the key pressure of a sliding system, comprising the following steps: A. drilling holes at the position where oil pressure needs to be monitored; B. installing an adapter at the position where oil pressure needs to be monitored; C. directing the oil pressure Go to the pressure sensor for measurement; D. Analyze according to the measurement results. After using this measurement method, you can know whether the oil circuit of the engine is smooth during the test, whether the parts have enough pressure to lubricate and work normally. When abnormal pressure is found during monitoring, the root cause of the problem can be quickly locked, which is conducive to problem solving. ; It can also combine the actual measured pressure with the CAE analysis to see if there is an excessive pressure drop in the pipeline, which provides direction for pipeline design optimization and manufacturing quality optimization.
Description
technical field [0001] The invention relates to the field of engine lubricating systems, in particular to a method for measuring the key pressure of the lubricating system. Background technique [0002] In the engine bench test, only the pressure of the main oil passage of the engine is monitored, which is used to analyze the oil circulation state of the engine and the lubrication state of the parts. However, when partial blockages, leakages, or insufficient oil supply occur in the branch of the oil circuit, their influence on the pressure of the main oil channel is not significant, so it is not easy to detect. It's not until a part fails that you start looking for the problem. At this point irreparable damage may have occurred. Contents of the invention [0003] In view of the defects or deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a method for measuring the key pressure of the sliding system, which can know wh...
Claims
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IPC IPC(8): F01M1/20G01M15/04
Inventor 陆鹏覃小金黄勇黄彦朱茂强
Owner SAIC-GM-WULING AUTOMOBILE CO LTD