Engine crankcase ventilation system and using method thereof

Abstract

The invention discloses an engine crankcase ventilation system and a using method thereof. The device comprises a cooling type oil-gas separation plate, a flow dividing spray hole, an air extracting pump, a processing module, an instrument panel, a pressure sensor, an engine crankcase, an environment waste gas pipe, a system valve and an oil collecting groove. The cooling type separation plate is of a cavity structure, the cooling type separation plate is provided with a cooling medium inlet and a cooling medium outlet which are used for oil-gas impingement separation, the flow dividing spray holes are located in the front end of the cooling medium inlet, and the oil collecting groove is formed below the cooling type oil-gas separation plate and used for collecting oil drops adsorbed on the cooling type oil-gas separation plate; the engine crankcase and the output end of the environment waste gas pipe are connected to the flow dividing spray hole, and the system valve and the sucking pump are arranged between the engine crankcase and the flow dividing spray hole and between the output end of the environment waste gas pipe and the flow dividing spray hole. When the pressure of the crankcase of the engine is large, a driver is warned that the engine has potential safety hazards and needs to be shut down for inspection.

Description

technical field [0001] The invention belongs to the technical field of engine crankcases, and in particular relates to an engine crankcase ventilation system and an application method thereof. Background technique [0002] The existing engine ventilation system does not monitor and manage the pressure of the engine crankcase. Most of them use a labyrinth structure for coarse and efficient separation, and then perform oil and gas separation and fine filtration. The system resistance is high and the separation efficiency is limited. [0003] Existing engine crankcase ventilation system ventilation relies on system accumulation pressure to drive exhaust gas to be discharged. When the resistance of the oil-gas separation system is large, the pressure in the crankcase will also increase, which will increase the pressure on the crankcase seal. When the pressure in the crankcase is too high, it will cause the engine to Liquid leakage, oil leakage, etc. If the exhaust gas of the v...

AI Technical Summary

Problems solved by technology

[0003] Existing engine crankcase ventilation system ventilation relies on system accumulation pressure to drive exhaust gas to be discharged. When the resistance of the oil-gas separation system is large, the pressure in the crankcase will also increase, which will increase the pressure on the crankcase seal. When the pressure in the crankcase is too high, it will cause the engine to Liquid leakage, oil leakage, etc.

If the exhaust gas of the ventilation system is discharged directly, it will have a great impact on the environment; if it is directly sent into the cylinder to participate in combustion without treatment, the residual oil and impurities in the exhaust gas will pollute the supercharger and other components along the way, affecting the life of the components

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