Engine oil consumption measuring device and measuring method

Abstract

The invention belongs to the technical field of engine performance testing, and discloses an engine oil consumption measuring device and method, and the engine oil consumption measuring device comprises a tested engine and an oil discharge pipeline. The tested engine comprises an engine oil pan capable of containing lubricating oil, and the engine oil pan is provided with a through lubricating oil discharge hole. The oil discharge pipeline is detachably connected with the engine oil pan, one end of the oil discharge pipeline is communicated with the lubricating oil discharge hole, the free end of the oil discharge pipeline is located in the engine oil pan, the height between the free end and the bottom face of the engine oil pan is equal to the theoretical liquid level of lubricating oil of the tested engine, and the theoretical liquid level of the lubricating oil can maintain working oil consumption. And the oil discharge pipeline can selectively discharge lubricating oil. According to the engine oil consumption measuring device, the influence of the external environment can be eliminated, the fluctuation of an oil consumption measuring value is smaller, and the measuring precision is high; according to the measuring method, the engine oil consumption measuring device is used, the time cost and the testing cost can be saved, and the measuring accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of engine performance testing, in particular to an engine oil consumption measuring device and a measuring method. Background technique [0002] The emission performance of each component of the power system of a passenger car is closely related to the oil consumption level of the engine. On the one hand, high lubricating oil consumption will cause insufficient combustion of the combustion chamber gas of the engine, resulting in increased carbon deposits, which will cause exhaust pollution to change. Seriously, on the other hand, higher engine oil consumption will reduce power performance, so the engine oil consumption level has always been one of the most concerned issues of engine manufacturers. However, the measurement of engine oil consumption is generally difficult to be accurate. The traditional engine oil consumption measurement uses the engine bench to run the target operating condition for a certai...

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Problems solved by technology

In the actual operation process, the gravity oil drain is greatly affected by factors such as lubricating oil temperature, ambient temperature, oil draining time, and the amount of lubricating oil hanging on the wall. The most important thing is the amount of lubricating oil attached to the surface of each engine component at the moment of shutdown It is different, which leads to fluctuations in the amount of lubricating oil in the oil pan, which affects the final weighing result. Therefore, when the engine factory uses the engine bench to measure the oil consumption, it will repeatedly eliminate the error fluctuations several times to ensure the accuracy of the value. , the measurement efficiency is low, and the measurement cost is high

During the road test of the whole vehicle, due to the mobility of the vehicle, it is even more difficult to measure the oil consumption. Many variables cause the measured value of the oil consumption to fluctuate greatly. The value obtained by the traditional gravity oil drain measurement method no reference value

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