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Measurement equipment for gas content of engine oil and measurement method thereof

A technology for engine oil and measuring equipment, applied in the direction of analyzing materials, instruments, etc., can solve the problems of poor test data reproducibility and large error in the measurement results of oil gas content, and achieve the effect of improving safety and accurate measurement results.

Inactive Publication Date: 2016-08-17
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

[0004] There are the following technical problems in the prior art: the conventional method of manually draining the gas content of engine oil is affected by various factors such as the environment, resulting in large errors in the measurement results of the gas content of the engine oil and poor reproducibility of test data

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  • Measurement equipment for gas content of engine oil and measurement method thereof
  • Measurement equipment for gas content of engine oil and measurement method thereof
  • Measurement equipment for gas content of engine oil and measurement method thereof

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Embodiment Construction

[0061] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0062] In a preferred embodiment, in order to continuously measure the air content of the engine oil under different working conditions, a double vacuum negative pressure pump is used to effectively break the large air bubbles in the oil and reduce the oil adhesion loss; Bubbles broken by negative pressure, the present invention introduces ultrasonic cavitation method to break microbubbles; in order to avoid measurement differences caused by different measurement environments, the following parameters and formulas will be introduced to calculate the gas content; the formula is as follows:

[0063] Aeration[%]=(V refAir / V refOil ) 100%

[0064] where V oOil =V eOil (1+β(T o -T e ))

[0065] V oAir =V oMix —V oOil

[0066] V refOil =V oOil (1+β(T ref -T o ))

[0067] V re...

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Abstract

The invention relates to measurement equipment for gas content of engine oil and a measurement method thereof. The measurement equipment comprises a vacuum pump, an ultrasonic vibration rod, an oil taking pipeline, a measurement cavity and a piston air cylinder, wherein the vacuum pump is connected to the measurement cavity and is used for vacuumizing the measurement cavity; one end of the oil taking pipeline is connected to an engine assembly and the other end of the oil taking pipeline is connected to the measurement cavity; and the piston air cylinder is connected to the measurement cavity and is used for receiving the engine oil from the measurement cavity and can squeeze the engine oil back to the measurement cavity. The measurement equipment can be used for accurately measuring the gas content of the engine oil of an engine under different working states, so that the lubrication fault rate of the engine or parts is reduced.

Description

technical field [0001] The invention relates to the field of engine lubrication testing, in particular to an engine oil gas content measuring device and a measuring method thereof. Background technique [0002] With the continuous improvement of the technical level of the engine, it becomes more and more meaningful to improve the problem of engine oil air content. Excessively high oil air content will shorten the life of the engine oil and cause a large number of damages and failures of hydraulic components and friction bearings. [0003] At present, there are two mainstream methods for measuring the gas content of engine oil in the world. One is the test method based on density change, that is, the radioactive density of radionuclides will change in the same proportion as the density of the radionuclide in the engine oil. Using this physical characteristic Continuous measurement of the gas content of engine oil can be realized; the other is the measurement method based on v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/16
CPCG01N7/16
Inventor 王雷鸣祖松单盐安王经理
Owner CHERY AUTOMOBILE CO LTD
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