Title:
【発明の名称】ピストンポンプ
Document Type and Number:
Japanese Patent JP2001501282
Kind Code:
A
Abstract:
A piston pump which is intended in particular for a vehicle hydraulic, slip-controlled brake system. To reduce idle volume in the piston pump, a positive-displacement body is mounted on the piston by means of a retaining part. The displacement body protrudes into an interior of a valve closing spring, embodied as a helical spring, of an inlet valve integrated with the piston. The embodiment of the valve closing spring and of a piston restoring spring with a rectangular coil cross section also contributes to reducing the idle volume of the piston pump. Reducing the idle volume increases the efficiency of the piston pump.
Inventors:
Heinz Siegel
Dieter Merck Line
Joachim Aerich
Andreas V
Michael Hellebrandt
Tobias Fluck
Michael Schritzkus
Dieter Merck Line
Joachim Aerich
Andreas V
Michael Hellebrandt
Tobias Fluck
Michael Schritzkus
Application Number:
JP51035799A
Publication Date:
January 30, 2001
Filing Date:
July 08, 1998
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F04B53/16; B60T8/40; B60T13/16; F04B1/04; F04B9/04; F04B53/12; F04B53/14; (IPC1-7): F04B53/16; F04B53/12
Attorney, Agent or Firm:
Toshio Yano (3 outside)