Patent ID: 8388325
Filing Date: 2013-03-05
Classification: B60T,F04B

Abstract:
1. A piston pump for a vehicle brake system, comprising: a housing portion; a piston guided displaceably in a cylinder bore of the housing portion; an inlet valve cap for receiving an inlet valve, the valve cap having a radially outward extending sealing element directly contacting an inner wall of the housing portion for sealing off the piston from the housing portion; and a piston rod adjoining the sealing element, the piston rod being embodied in two parts, with a first piston rod element and a second piston rod element, wherein the second piston rod element adjoins the sealing element and the first piston rod element adjoins the second piston rod element, and wherein a fluid introduction opening for introducing fluid into the interior of the piston is provided in the first piston rod element, and a covering portion of the second piston rod element partially covers the fluid introduction opening in an axial direction of the piston.