Engine machine oil viscosity on-line detection device and detection method

A technology of engine oil and detection device, which is applied in the direction of DC flow characteristic measurement, etc., can solve the problems of error, error increase, and unsatisfactory detection method of viscosity, etc., and achieve the effect of scientific detection results and easy popularization and application

Active Publication Date: 2015-12-23
JILIN UNIV
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Problems solved by technology

It can be seen that the method of detecting the viscosity of the engine oil in the above two patents does not create an environment at a standard temperature (100°C), but detects the viscosity of the engine oil at a non-standard temperature, and then calculates the theoretical value at this time based on the viscosity-temperature characteristics of the engine oil. The viscosity value of the engine oil at the standard temperature, however, there is a certain error between the theoretical formula of the viscosity-temperature characteristics of the engine oil and the actual viscosity-temperature characteristics of the engine oil, especially as the temperature difference increases, the error gradually increases, so this method of detecting viscosity It is not ideal, but it is necessary to provide a detection method to directly detect the viscosity of engine oil under standard conditions

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  • Engine machine oil viscosity on-line detection device and detection method
  • Engine machine oil viscosity on-line detection device and detection method
  • Engine machine oil viscosity on-line detection device and detection method

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Embodiment Construction

[0033] The specific embodiments of the present invention will be further elaborated below in conjunction with the accompanying drawings:

[0034] like figure 1 As shown, the present invention discloses an on-line detection device for engine oil viscosity. The device is installed downstream of the oil pump 1 in the lubricating oil circuit of the automobile engine. On-off of the branch. The device is connected to the solenoid valve 2, the oil sampling device 8, the constant flow pump 9, the pressure sensor 10, the flow sensor 11, the pressure control valve 12 and the cooling device 13 in sequence through the oil supply pipeline along the direction of oil transmission;

[0035] The solenoid valve 2 is installed on a branch connected in parallel with the main oil circuit 16. At the inlet of the sampling device, the downstream end of the solenoid valve 2 is connected to the oil sampling device 8; the oil sampling device 8 includes a liquid level sensor 4 located below it. , for m...

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Abstract

The invention discloses an engine machine oil viscosity on-line detection device and detection method. The provided device is connected with a machine oil sampling device composed of a solenoid valve, a liquid level sensor and a second temperature sensor, a constant flow pump, a pressure sensor, a flow sensor, a pressure control valve and a cooling device through oil supply pipes in order. The device comprises a constant temperature oil bath box embedded at the outer side of the sampling device and composed of a heater and a first temperature sensor, a data processing module connected with each sensor and a one-chip microcomputer connected with the solenoid valve, the heater, the constant flow pump and the pressure control valve. Through construction of machine oil viscosity detection standard temperature and simulation of practical working pressure of engine machine oil, combined with the data processing module and the one-chip microcomputer, on-line detection of the machine oil viscosity is carried out. The machine oil viscosity can be monitored in real time, detection results are scientific and accurate, and in-time and effective basis is provided for oil change.

Description

technical field [0001] The invention relates to a detection device, in particular to an on-line detection device of engine oil viscosity and a detection method thereof. Background technique [0002] After being used for a period of time, the viscosity of automobile oil will change due to the mixing of impurities and the change of its own physical and chemical properties, which will affect its lubricating ability and cause the wear of automobile parts to increase. Therefore, it is very necessary to test the viscosity of the oil in use. . At present, there are two main ways to detect oil viscosity, namely offline detection and online detection. Offline testing is to regularly sample the oil in use, and then send it to a special testing center, and use a kinematic viscosity tester for viscosity testing. The disadvantage is that the detection process is time-consuming and labor-intensive, and the oil sample to be tested can only be sent to the laboratory for testing, and real-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/02
Inventor 刘玉梅葛琦张宏涛徐文彬熊明烨赵聪聪乔宁国郭艳秀卢政旭杨思航刘祖光陈云张志远苏建徐观陈熔张立斌潘洪达
Owner JILIN UNIV
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