Self-contained hydraulic actuator system
AssigneeAshradan Holdings Ltd.
InventorsAviram Arbel, Alexandru Cohn
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Abstract
The hydraulic linear actuator system of the present invention includes a pump that is configured to rotate in a single direction at a substantially constant velocity. Both the direction and flow rate of fluid through the system is controlled by adjusting the positional relationship between the stator and the rotor of the pump. This positional relationship is adjustable between a forward flow state, a non-flow state and a reverse flow state. The hydraulic linear actuator is responsive to the flow of fluid through the system so as to be displaced in a first direction by the forward flow state of the pump and in a second direction by the reverse flow state of the pump.
Claims10
A self-contained hydraulic actuator system comprising;
- (a) a drive motor configured to rotate at a substantially constant velocity;
- (b) a hydraulic pump driven by said drive motor;
- (c) a hydraulic linear actuator in fluid communication with said hydraulic pump so as to be actuated in a first direction by a forward flow state and in a second direction by a reverse flow state;
- (d) a control system associated with said hydraulic pump, said control system configured to control adjustment of said hydraulic pump between said forward flow state, a non-flow state and said reverse flow state, and said control system includes a bi-directional motor such that a speed and direction of said adjustment is affected by said bi-directional motor;
- and
- (e) a positioning system configures to provide positional information regarding said hydraulic linear actuator.
Dependencies are inferred from the claim text.