Piston Pump for a Hydraulic Vehicle Brake System
AssigneeRobert Bosch GmbH
InventorsOliver Hennig, Patrick Schellnegger, Jens Norberg
Life of this patent
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Abstract
A piston pump includes a perforated disk as a throttle, in a central hole of which an outlet valve is arranged and its inner edge is fixed externally on a cylinder sleeve base of the piston pump and an outer edge of which lies with prestress on an annular support. Brake fluid displaced out of the piston pump lifts the perforated disk-shaped throttle off from the annular support, with which a dynamic throttle is formed. A throttle channel which negotiates the annular support in the perforated disk-shaped throttle also enables a throughflow in the case of a throttle lying on the annular support.
Claims8
A piston pump for a hydraulic vehicle brake system, comprising:
- an elastic perforated disk configured as a dynamic throttle, the perforated disk fixed on an inner edge or on an outer edge;
- and
- an annular support, the outer edge or the inner edge lies on the annular support, and a pump flow lifts the outer edge or the inner edge,
- wherein at least one of the throttle and the annular support defines a throttle channel which negotiates the annular support.
Dependencies are inferred from the claim text.