Patent ID: 6217300
Filing Date: 2001-04-17
Classification: B60T,F04B

Abstract:
A piston pump, comprising a piston that is driven to execute a reciprocating stroke motion and is axially displaceably received, over at least part of its length, in a bush that is inserted into a pump housing, and a retention means for the piston is mounted on the bush, the retention means engages an undercut of the piston, and the undercut is made on the piston inside a piston circumference, the piston pump (10) has a tubular filter (80); the filter (80) is mounted, lengthening the bush (12), on an open face end of the bush (12); the retention means (92) is embodied to yield in the radial direction and automatically comes into engagement with the undercut (96) of the piston (20); the retention means (92) is mounted on the filter (80); and the filter (80) is mounted in clamping fashion on the bush (12).