Reciprocating pump
AssigneeRobert Bosch GmbH
InventorsWolfgang Schuller, Ursula Eckstein
Life of this patent
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Abstract
The invention relates to a piston pump with a piston (10) that is guided so that it can move axially in a pump bore (12) of a pump housing (14). In order to simplify the manufacture of the piston (10), the invention proposes providing the piston (10) with a support ring (64), which is connected to a guide ring (66). By connecting the support ring (64) and guide ring (66), the structural length of the piston pump (10) can be shortened.
Claims16
A piston pump for a hydraulic vehicle brake system, comprising a piston that is guided so that the piston moves axially in a pump housing and is driven into a reciprocating stroke motion in an axial direction, a guide ring that is slid onto the piston, which guides the piston axially in the pump housing, and with a support ring that is attached to the piston and moves along with the piston, against the guide ring which is supported axially in at least one direction, and means to connect the guide ring (66;
- 78) directly to the support ring (64;
- 76).
Dependencies are inferred from the claim text.