Diesel crankcase ventilation device

Abstract

The invention discloses a crankcase ventilation device for a diesel engine; the invention has simple structure, low cost and strong practicability, comprising a valve body, a check valve is arranged on one side of the valve body, and There is a spring, one side of the valve body is provided with a compression space, the other side of the valve body is provided with a valve seat, the bottom of the valve seat is provided with a vent pipe connection port, and one side of the compression space is provided with a fixed shaft , one end of the valve body is provided with a crankcase connection port, one side of the crankcase connection port is provided with a retractable rod, one side of the check valve is provided with a power supply, and one side of the power supply is provided with a fan; this kind of diesel engine The crankcase ventilation device functions through the fan and the telescopic rod, which can increase the ventilation effect of the ventilation device, save a lot of cost, is simple and convenient to use, has good economic and social benefits, and is suitable for popularization and use.

Description

technical field [0001] The invention relates to a ventilation device, in particular to a diesel engine crankcase ventilation device, which belongs to the technical field of mechanical application. Background technique [0002] When the engine is working, the high-pressure combustible mixture and burned gas in the combustion chamber will more or less leak into the crankcase through the gap between the piston group and the cylinder, causing blow-by. The components of blow-by gas are unburned fuel gas, water vapor and exhaust gas, etc., which will dilute the engine oil, reduce the performance of the engine oil, and accelerate the oxidation and deterioration of the engine oil. Moisture condenses in the engine oil, which will form sludge and block the oil circuit; the acid gas in the exhaust gas will be mixed into the lubrication system, which will cause corrosion and accelerated wear of engine parts; blow-by gas will also cause the pressure of the crankcase to be too high and da...

AI Technical Summary

Problems solved by technology

At present, the gasoline engines for automobiles all adopt forced ventilation, and the diesel engines for automobiles are gradually adopting forced ventilation, but the first ventilation method will cause the dirt from the outside to be sucked into the engine, which will cause secondary pollution, while the cost of the second ventilation method Higher, so a diesel engine crankcase ventilation device will have a good market prospect

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