Shenyang Ziweiheng Testing Equipment Co., Ltd. uses its own oil and gas separation test technology in the automotive field to combine the separation test technology of aero-engine oil and gas separators for military-civilian integration, we are vigorously developing separation test stand for oil and gas separators and drafting of industry standard, through the development of the experimental device of the oil and gas separator, evaluate the separation effect, service life, performance, substance after oil and gas separation (Oil, gas), changes in physical properties (Density, temperature, pressure, etc.), for the separation suitability of different oil and gas mixtures, the separation effect in different environments (Temperature, pressure change).

With the gradual internationalization of national emission regulations, the state's emission requirements for complete vehicles are becoming more and more strict. At present, the crankcase forced ventilation system is adopted on the engine, that is, the negative pressure generated by the upper manifold of the engine, the negative pressure generated by the air inlet hose after air filtration separates the mixed gas in the crankcase into the cover/oil and gas separator, the separated gas then enters the combustion chamber through the intake manifold to re-burn. If the gas separated by the cover/oil and gas separator is carried more oil, it will deteriorate the combustion process and affect the engine emissions. Therefore, the oil and gas separation effect of the cover/oil and gas separator is particularly important, and the separation efficiency requirements of the cover/oil and gas separator are becoming more and more strict.

At present, the domestic suppliers' evaluation methods for the oil-gas separation efficiency of the cover/oil and gas separator are limited to computer simulation, but according to the actual stand test, the results of computer simulation of oil and gas separation efficiency are quite different from the results of general stand test, which is difficult to be used as a means to evaluate the separation efficiency of the cover/oil and gas separator. The oil and gas separation efficiency of the existing cover/oil and gas separator is mainly verified by the engine stand test of the main engine factory, however, the stand resources of the main engine are generally tight, and the supplier is in urgent need of the ability to evaluate the separation efficiency of the cover/oil and gas separator. At present, there are a few manufacturers in foreign countries that can evaluate the oil-gas separation efficiency of the cover/oil and gas separator. However, this imported single-unit test stand is expensive and has high maintenance cost, and is rarely used in domestic auto parts manufacturers. In order to improve the oil and gas separation efficiency test capability of the cover/oil separator supplier, a cover/oil and gas separator oil and gas separation efficiency test stand is being independently developed to complete the oil and gas separator medium oil high and low temperature flow pressure test, oil and gas separator diaphragm valve performance test, oil and gas separator low temperature impact test and so on.

Product development for the cover/oil and gas separator test stand.