Patent ID: 6283724
Filing Date: 2001-09-04
Classification: B60T,F04B

Abstract:
A piston pump for a vehicle brake system, having a housing, into which a bush is inserted, and in the bush a piston that can be driven to execute a reciprocating stroke motion is received axially displaceably, a first check valve (64), which is mounted on the bush and controls a flow direction of fluid, pumped through the piston pump, by the piston pump, the first check valve (64) has a first valve seat (62,120),the piston pump (10) has a second check valve (38), which is disposed in the bush (16) and controls the flow direction of fluid, pumped through the piston pump (10) by the piston pump (10),the second check valve (38) has a second valve seat (42,102),the first valve seat (62,120) is associated with the bush (16) in a stationary manner, and the second valve seat (42,102) is associated with the bush (16) in a stationary manner.