Oil aeration device for use in oil pump test rigs

Abstract

The invention discloses an engine oil aeration device used in an engine oil pump test device, comprising an air pump (1), an oil tank (6) for supplying oil to the oil inlet port of the engine oil pump, and an air pump (1) connected to the oil tank (6) The trachea (2); it also includes a partition (4), and the partition (4) is provided with a plurality of through holes (7) that cover the entire partition (4), and the edge of the partition (4) It is connected to the inner wall of the fuel tank (6) and is located near the inlet port of the air pipe (2). After adopting the above structure, the gas content in the oil is uniform, and there will be no high gas content at the connection between the air pipe and the fuel tank, but the farther away from the connection, the lower the gas content. Therefore, the oil pump can output pressure more stably. Reflected on the engine, it can more truly reflect the operating conditions of the engine.

Description

technical field [0001] The invention relates to the technical field of engine testing, in particular to an engine oil aerating device used in an engine oil pump testing device. Background technique [0002] When the automobile engine is working, each moving part acts on another part with a certain force, and high-speed relative motion occurs. With relative motion, friction will inevitably occur on the surface of the parts, thereby accelerating wear. Therefore, in order to reduce wear and tear, reduce friction resistance and prolong service life, there must be lubrication system parts on the engine. The main components of the lubrication system are various equipment such as an oil pump. The function of the oil pump is to increase the oil to a certain pressure and then forcefully send it to the moving surfaces of the various parts of the engine. [0003] In the actual use of the engine, the engine oil has a certain gas content, because a small amount of gas will enter the oil...

AI Technical Summary

Problems solved by technology

[0005] 1) For the former, after the air pump transports the gas into the oil tank through the air pipe, the gas is dissolved in the oil, but the distribution of the gas in the oil is uneven, and the gas content at the connection between the air pipe and the oil tank will be high, while The farther away from the connection, the lower the gas content. Therefore, the gas content in the oil supplied from the oil tank to the oil pump is not uniform, and the output pressure of the oil pump increases with the reduction of the gas content. In this way, the oil pump does not If the pressure cannot be output stably and reflected on the engine, it cannot truly reflect the operating conditions of the engine;

[0006] 2) As for the latter, it is purely a difference between the volume change of the hot oil and the oil at normal temperature, and the gas content in the engine oil is calculated by a certain calculation method. Therefore, its detection The efficiency is too low and the error is large

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