Assembly of pressure adjustable and anti oil pumping cylinder cap and cowling

Abstract

A cylinder housing assembly being able to regulate pressure and prevent oil from fleeing includes setting pressure regulating valve under pressure indicating valve in valve cavity of engine oil pressure indicating valve on housing body; forming pressure regulating valve by valve seat, valve core, spring and nut; setting oil inlet hole on housing body between two valves and oil discharging hole at bottom side of housing body; as well as setting an oil baffle outside of oil discharging hole on housing.

Description

technical field [0001] The invention relates to an assembly of a diesel engine cylinder head cover and an engine oil pressure indicating valve, in particular to an adjustable pressure-adjustable and oil-blow-by prevention cylinder head cover assembly that can reduce engine oil pressure and prevent oil blow-by in a diesel engine combustion chamber. Background technique [0002] At present, during the use of diesel engines, it is often found that the oil pressure of the cold machine is too high, the oil pressure gauge is damaged, and the oil enters the combustion chamber from the top of the cylinder head at a low speed. caused by technical problems solved. As shown in Figure 2, the existing cylinder head cover assembly is composed of two parts: the cylinder head cover and the oil pressure indicating valve. On the valve cavity of the cylinder head cover. When starting a cold engine, due to the high viscosity of the engine oil, the amount of oil leaking through the connecting ...

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Problems solved by technology

When starting a cold engine, due to the high viscosity of the engine oil, the amount of oil leaking through the connecting rod bearing is small, and the oil mainly leaks through the small hole of Φ1.5mm exposed after the oil pressure indicator valve in the cylinder head cover rises, and the pressure is relatively high , and when the engine is hot, the viscosity of the oil decreases, the oil leaked through the connecting rod bushes increases relatively, and the oil leaked from the Φ1.5mm hole on the cylinder head cover relatively decreases, and the oil pressure returns to normal at this time, but due to the oil leaked through the Φ1. The oil leaked from the 5mm hole will be directly sprayed on the intake and exhaust valve rods inside the cylinder head cover, which will easily cause the phenomenon of oil leakage from the upper part, so that the oil enters the combustion chamber through the gap between the valve rod and the valve guide, thereby There is a fault of diesel engine oil leaking

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