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US 9,303,643 B2Granted
Internal gear pump with axial disk and intermediate piece
AssigneeRobert Bosch GmbH
InventorsRene Schepp, Norbert Alaze, Edgar Kurz
Life of this patent
Estimating the term…
Abstract
An internal gear pump includes a pinion and an annulus as a return pump in a hydraulic vehicle brake system. The internal gear pump further includes an axial disk and an intermediate piece. The intermediate piece is configured to be acted upon by an outlet pressure of the internal gear pump and press the axial disk against a side face of the pinion and of the annulus.
Claims10
An internal gear pump for a hydraulic vehicle brake system, comprising:
- an annulus;
- a pinion arranged in the annulus and configured to mesh with the annulus;
- an axial disk resting on a side face of the pinion and of the annulus, the axial disk being fixed against relative rotation and configured for axial movement;
- and
- an axially movable intermediate piece arranged on a side of the axial disk remote from the pinion and the annulus, the intermediate piece being configured to push the axial disk against the side face of the pinion and of the annulus,
- wherein the intermediate piece has an annular step that faces away from the axial disk and that is subjected to the outlet pressure of the internal gear pump.
3 more elements
An internal gear pump for a hydraulic vehicle brake system, comprising:
- an annulus;
- a pinion arranged in the annulus and configured to mesh with the annulus;
- an axial disk resting on a side face of the pinion and of the annulus, the axial disk being fixed against relative rotation and configured for axial movement;
- and
- an axially movable intermediate piece arranged on a side of the axial disk remote from the pinion and the annulus, the intermediate piece being configured to push the axial disk against the side face of the pinion and of the annulus,
- wherein the intermediate piece has on its circumference a peripheral seal integral therewith.
3 more elements
Dependencies are inferred from the claim text.