Engine oil inflation device for engine oil pump testing device

Abstract

The invention discloses an engine oil inflation device for an engine oil pump testing device. The engine oil inflation device comprises an air pump (1), an oil tank (6) for supplying oil to an oil inlet of an engine oil pump and an air pipe (2) for communicating the air pump (1) with the oil tank (6), and further comprises a division plate (4), wherein the division plate (4) is provided with a plurality of through holes (7) distributed in the whole division plate (4), and the edge of the division plate (4) is connected to the inner side wall of the oil tank (6) and approaches an introduction port of the air pipe (2). By adopting the engine oil inflation device, the gas content of oil is uniform, and the situations that the gas content at the joint of the air pipe and the oil tank is high and the gas content away from the joint is lower are avoided, so that the engine oil pump can output pressure more stably and the using condition of an engine can be reflected more truthfully.

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...

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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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