Piston pump
AssigneeContinental Teves AG & Co. oHG
InventorsAxel Hinz, Hans-Dieter Reinartz
Life of this patent
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Abstract
The present invention relates to a piston pump, which is in particular appropriate for the pressure fluid delivery in electronically controlled brake systems, including a housing, a suction valve, a pressure valve, and a pump piston that is designed as a stepped piston having a large-diameter portion and a small-diameter portion. According to the present invention, the stepped piston at its large-diameter portion is guided in a pump cartridge. Preferably, the pressure valve is designed additionally at the cartridge in a radial direction relative to the direction of movement of the stepped piston.
Claims10
Piston pump, in particular for the pressure fluid delivery in electronically controlled brake systems, comprising:
- a housing,
- a suction valve,
- a pressure valve, and
- a stepped piston having a large-diameter portion, and a small-diameter portion, wherein the stepped piston at its large-diameter portion is guided in a pump cartridge, wherein the pump cartridge defines at least a portion of at least one suction channel extending substantially along the length of the pump cartridge and parallel to a direction of movement of the stepped piston guided therein and wherein the pump cartridge is in continuous, fluidic communication with the suction valve.
Dependencies are inferred from the claim text.