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AssigneeSchaeffler Technologies AG & Co. KG
InventorsDominik Herkommer, Markus Baehr, Marco Grethel
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The invention relates to an actuating device for actuating a clutch and/or a transmission of a motor vehicle, including a pump having two fluid connections and including a movable actuating element fluidically connected to a first fluid connection of the pump, wherein the pump is designed such that in a first pump position, in which the pump is driven in a first direction of rotation, for extending the actuating element the pump conveys a pressure fluid in a first conveying direction from a second fluid connection to the first fluid connection, wherein the pump is configured as a variable displacement pump which is reversible with regard to the conveying direction of the pump, wherein the pump is designed such that after it has been moved into a second pump position, in which the pump is driven in the first direction of rotation, for retracting the actuating element the pump conveys a pressure fluid in a second conveying direction, opposite the first conveying direction, from the first fluid connection to the second fluid connection. The invention further relates to a clutch and to a transmission system having such an actuating device.
An actuating device for actuating at least one of a clutch or a transmission of a motor vehicle, comprising a pump having first and second fluid connections and a displaceable actuating element connected in a fluid-conducting fashion to the first fluid connection of the pump, with the pump being operable in a first pump setting, in which it is driven in a first direction of rotation, such that a pressure fluid is conveyed in a first conveying direction from the second fluid connection to the first fluid connection to extend an actuating element, the pump is embodied with regards to a direction of conveyance as a reversible displacement pump, with the displacement pump being operable in a second pump setting in which it is driven in the first direction of rotation, such that the pressure fluid is conveyed in a second conveying direction, opposite the first conveying direction, from the first fluid connection to the second fluid connection (9) to retract the actuating element.
Dependencies are inferred from the claim text.