A storage actuator for actuating an output device, with the output device, with at least one energy storage, with a drive device by means of which energy can be stored in the energy storage in at least one first operating state of the storage actuator, wherein the storage actuator has at least one second operating state in which at least a part of the energy stored in the energy storage can be provided from the energy storage whereby the output device can be supplied with the provided energy and can thereby be actuated, wherein at least one reservoir for providing a hydraulic fluid is provided which can be conveyed into the energy storage by means of the drive device in the first operating state, whereby the energy can be stored in the energy storage, and wherein the energy storage provides at least a part of the hydraulic fluid stored in the energy storage and thereby at least the part of the energy stored in the energy storage in the second operating state, whereby the output device can be actuated by means of the provided hydraulic fluid, wherein the storage actuator further comprises: - the drive device including at least one drive actuator for conveying the hydraulic fluid; - a chamber; - a piston element movably arranged in the chamber, the piston element dividing the chamber into a first chamber area into which the hydraulic fluid can be conveyed by means of the drive device, and a second chamber area, and the piston element being, by conveying the hydraulic fluid into the first chamber area, movable from a first position into a second position in which the piston element unblocks a first through-flow opening and blocks a second through-flow opening such that the hydraulic fluid conveyed into the first chamber area can be introduced from the first chamber area via the first through-flow opening into the energy storage; - at least one return device by means of which the piston element is movable from the second position into the first position in which the piston element unblocks the second through-flow opening and blocks the first through-flow opening such that at least a part of the hydraulic fluid introduced into the energy storage can be introduced from the energy storage via the second through-flow opening into the second chamber area; and - the output device which can be supplied with at least a part of the hydraulic fluid introduced into the second chamber area thereby driving the output device. - the drive device including at least one drive actuator for conveying the hydraulic fluid; - a chamber; - a piston element movably arranged in the chamber, the piston element dividing the chamber into a first chamber area into which the hydraulic fluid can be conveyed by means of the drive device, and a second chamber area, and the piston element being, by conveying the hydraulic fluid into the first chamber area, movable from a first position into a second position in which the piston element unblocks a first through-flow opening and blocks a second through-flow opening such that the hydraulic fluid conveyed into the first chamber area can be introduced from the first chamber area via the first through-flow opening into the energy storage; - at least one return device by means of which the piston element is movable from the second position into the first position in which the piston element unblocks the second through-flow opening and blocks the first through-flow opening such that at least a part of the hydraulic fluid introduced into the energy storage can be introduced from the energy storage via the second through-flow opening into the second chamber area; and - the output device which can be supplied with at least a part of the hydraulic fluid introduced into the second chamber area thereby driving the output device.