Device and method for accurately measuring gas content of engine oil

Abstract

The invention discloses a device for accurately measuring gas content of engine oil. The device comprises a closed vessel, a vacuum pump, a temperature measuring device, a pressure meter and a pressure testing device, wherein the closed vessel is used for obtaining engine oil from a main oil way of an engine oil cooler and containing the engine oil; the vessel is provided with scales used for measuring the volume of the engine oil; the vessel is provided with an electromagnetic valve used for controlling the connection and disconnection between the vessel and the main oil way; the vacuum pumpis used for vacuumizing the vessel and is connected with a vent hole of the vessel by means of a valve body; the temperature measuring device is used for measuring the temperature of the engine oil inthe vessel for a plurality of times; the pressure meter is used for measuring the pressure of the engine oil in the main oil way and is arranged in the main oil way; the pressure testing device is used for measuring the pressure in the vessel for a plurality of times and is arranged in the vessel. The temperature of the engine oil can be directly measured by means of the temperature measuring device, and the existing gas content can be calculated in a way of combining the temperature and volume of the engine oil, so that the device provided by the invention is stable and reliable. The invention also discloses a method which is applied to the device for accurately measuring the gas content of the engine oil.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing detection, in particular to a device for accurately measuring the gas content of engine oil. In addition, the present invention also relates to a method for accurately measuring the gas content of engine oil applied to the above-mentioned device. Background technique [0002] Impurities such as air in the engine oil are very harmful to the engine oil. The air in the engine oil will quickly oxidize and deteriorate the engine oil to form acidic substances, which will corrode the metal contact surface; it will also cause the additives in the oil to precipitate and fail; it will also make the lubricant film Reduced thickness, increased wear of mechanical contact surfaces and other hazards. Therefore, it is necessary to control the air content in the oil in the working environment. However, the existing technology cannot effectively and accurately measure the air content in the oil in...

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Problems solved by technology

Therefore, it is necessary to control the air content in the oil in the working environment. However, the existing technology cannot effectively and accurately measure the air content in the oil in the working environment, resulting in unclear grasp of the current situation of the air content.

[0003] The measurement scheme in the prior art is relatively complicated. Putting the vibrating rod into the oil will cause a large error in the volume of the oil. In addition, the temperature of the oil after the gas release cannot be obtained in the prior art, and the temperature of the oil is measured by other methods. Additional measurements, which lead to inconsistencies in the data and suspicious calculation results

In the prior art, the air content of the oil is calculated only by measuring the volume of the oil, which is an indirect method, and it is difficult to determine whether the calculated air content is correct or not

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