Actuating cylinder for a hydrostatic axial piston machine and hydrostatic axial piston machine with an actuating cylinder
AssigneeRobert Bosch GmbH
InventorFelix Hoffmann
Life of this patent
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Abstract
An actuating cylinder for an adjustment apparatus of a pivot angle of a hydrostatic axial piston machine has a hydraulic stop which connects an actuating pressure chamber of the actuating cylinder to an interior of the housing of the axial piston machine if the actuating piston is maximally extended. To this end, a channel is provided on the actuating piston side, while a control edge is provided on the housing side. The control edge is formed at the interface of a stop bore with the actuating cylinder bore. The stop bore may also be a leakage bore of the axial piston machine.
Claims8
A hydrostatic axial piston machine with an actuating cylinder for adjusting a stroke volume of the hydrostatic axial piston machine, comprising:
- an actuating cylinder bore defined in a main component of the hydrostatic axial piston machine;
- and
- an actuating piston movably guided in the actuating cylinder bore, the actuating piston defining an actuating pressure chamber, the actuating piston having a hydraulic stop for the actuating piston at which the actuating pressure chamber is connected via at least one channel to an interior of the main component, the hydraulic stop including a stop bore defined in the main component and which forms, together with the actuating cylinder bore, an edge via which the at least one channel is opened, wherein the stop bore is configured to connect the interior of the main component to an outside of the main component.
An axial piston machine comprising:
- a housing;
- a swash plate located within the housing;
- and
- an actuating cylinder comprising:
- an actuating cylinder bore defined in the housing;
- and
- an actuating piston coupled to the swash plate and movably guided in the actuating cylinder bore, the actuating piston defining an actuating pressure chamber, the actuating piston having a hydraulic stop for the actuating piston at which the actuating pressure chamber is connected via at least one channel to an interior of the housing, the hydraulic stop including a stop bore defined in the housing and which forms, together with the actuating cylinder bore, an edge via which the at least one channel is opened, wherein the stop bore extends from the interior of the housing to an outside of the axial piston machine.
Dependencies are inferred from the claim text.