<p>A pressure relief valve for a lubrication system of an internal combustion engine includes a valve body disposed within a generally cylindrical bore in a housing. The valve body is axially movable within the bore and is provided with a sealing surface on one end. A spring biases the sealing surface against a valve seat in the housing. A guide, which is preferably sleeve-shaped, is non-fixedly arranged within the bore for guiding the axial movement of the valve body and reducing the impact of manufacturing tolerance variations on valve operation. In a preferred embodiment, the sealing surface of the valve body is spherically shaped and the valve seat is conically shaped. A vent passage is provided in the sleeve-shaped guide to equalize pressures within the bore during operation of the valve.</p>
申请公布号
DE3443518(C1)
申请公布日期
1985.12.12
申请号
DE19843443518
申请日期
1984.11.29
申请人
DR.ING.H.C. F. PORSCHE AG, 7000 STUTTGART, DE
发明人
AMPFERER, HERBERT, 7120 BIETIGHEIM-BISSINGEN, DE;BINDER, ROBERT, 7141 SCHWIEBERDINGEN, DE