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US 11,143,178 B2Granted
Piston pump
AssigneeRobert Bosch GmbH
InventorsAnton Paweletz, Dietmar Kratzer
Life of this patent
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Abstract
A piston pump, in particular for a motor vehicle, includes a piston that is movably mounted in a housing. The piston pump further includes a linear actuator for moving the piston in a first direction. The piston pump further includes a return spring for moving the piston in a second direction. The end face of a first end of the piston delimits a first pressure chamber that is associated with a first hydraulic circuit. The end face of a second end of the piston delimits a second pressure chamber.
Claims10
A piston pump, comprising:
- a piston which is movably mounted in a housing;
- a linear actuator configured to move the piston in a first direction;
- and
- a return spring configured to move the piston in a second direction, wherein:
- the housing includes a first housing portion defining in part a first pressure chamber, and including a first bore, and a second housing portion laying closely against the first housing portion and defining in part a second pressure chamber, the second housing portion including a second bore aligned with the first bore;
- an end face of a first end of the piston delimits the first pressure chamber and is assigned to a first hydraulic circuit;
- an end face of a second end of the piston delimits the second pressure chamber;
- the first bore is in fluid communication with the second pressure chamber within the housing through the second bore;
- the piston pump is configured such that the piston is moved solely by the linear actuator in the first direction;
- and
- the piston pump is configured such that the piston is moved solely by the return spring in the second direction.
8 more elements
Dependencies are inferred from the claim text.