Oil-gas separation valve with metal diaphragm structure

Abstract

The invention relates to an oil-gas separation valve of a metal diaphragm structure. The oil-gas separation valve comprises an annular inner support housing; a support ring A is provided at the top end of the inner support housing; a gas inlet pipe is connected to the middle of the support ring A; a sealing diaphragm A is provided on the side surface, facing the interior of the inner support housing, of the support ring A; a support ring B is connected to the middle of the inner support housing in a sealed manner, and is elastically connected with the sealing diaphragm B through a support spring A; a collecting pipe A is provided at the middle of the support ring B; a cooling net A is provided at the end of the collecting pipe; a support ring C is provided at the bottom of the inner support housing; a plurality of strip-shaped exhaust ports B and exhaust ports A are formed in the inner wall of the inner support housing between the support ring C and the support ring B in an annular array manner; an oil collection groove is formed in the middle of the support ring C; an annular exhaust groove is formed in the outer wall surface of the inner support housing; a cooling net B is provided on the outer wall surface of the inner support housing; the exterior of the inner support housing is also sleeved with a wind guide cover; and a gas outlet pipe is provided at the bottom of the wind guide cover.

Description

technical field [0001] The invention relates to an oil-gas separation valve with a metal diaphragm structure, which belongs to the field of engine accessories. Background technique [0002] The traditional cyclone oil-gas separator uses the rubber diaphragm as the main mechanism for valve opening. The pressure of the crankcase is used to open the valve. However, due to the high pressure and high temperature in the crankcase, the rubber diaphragm will not The sheet is easily broken due to high temperature and high pressure extrusion. Once broken, the exhaust gas from the crankcase will enter the cyclone separator in a turbulent flow, which will cause the separator to fail to perform oil and gas separation normally, which will lead to Engine oil vapor mixed with crankcase hot air directly enters the engine combustion chamber, causing carbon deposits. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the technical ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the technical problem that the rubber diaphragm is easily damaged in the prior art, and to provide an oil-gas separation valve with a metal diaphragm structure

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