A linear telescopic actuator (1) that comprises a cylinder (2), a sliding part (3), a spring seat (4) and a first compression spring (5) capable of resiliently opposing the sliding part (3) approaching the spring seat (4). The spring seat (4) presents an outer annular groove (6) and the cylinder (2) includes an inner annular groove (7). The actuator (1) also presents a blocking part (8), the actuator (1) being adapted to adopt selectively an assembled configuration and a disassembled configuration. The blocking part (8) in the assembled configuration is engaged inside the inner and outer annular grooves (6, 7). The blocking part (8) in the disassembled configuration being disengaged from one of the grooves so as to allow spring seat (4) to slide in the cylinder (2).

The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored.

The disclosure relates to a linear drive for an adjustment element of a vehicle, with a drive train for generating a driving force along a geometrical drive axis between two coupling points, one of the coupling points comprising a joint part for discharging the driving force, which joint part, in the mounted state, forms a ball and socket joint with a mating joint part, the joint part having a bearing portion, a joining part arranged thereon and a connecting portion arranged thereon. The connecting portion serves for the connection of at least one drive train component of the linear drive to the joint part and has at least one connecting formation which is in engagement with the relevant drive train component, and wherein at least one part of the bearing portion is configured integrally together with the joining part and the connecting portion from at least one plastics material.

A linear telescopic actuator (1) comprising: a cylinder (2); a sliding part (3); a spring seat (4); and a first compression spring (5) capable of resiliently opposing the sliding part (3) approaching the spring seat (4).

The spring seat (4) presents an outer annular groove (6) and the cylinder (2) includes an inner annular groove (7), the actuator (1) also presenting a blocking part (8), the actuator (1) being adapted to adopt selectively an assembled configuration and a disassembled configuration, the blocking part (8) in the assembled configuration being engaged inside the inner and outer annular grooves (6, 7), and the blocking part (8) in the disassembled configuration being disengaged from one of the grooves so as to allow spring seat (4) to slide in the cylinder (2).

A transmission includes an oil sump and at least one oil bunker arranged separated from the oil sump within the transmission. The transmission includes a valve having a channel body, at least one sump port, at least one bunker port, and a mechanical actuating element. The channel body has at least one oil duct. The at least one oil duct connects the at least one bunker port to the at least one sump port. The mechanical actuating element is configured for temperature-dependently deforming to transfer the valve out of a closed position into at least one open position. The at least one oil bunker is connected to the oil sump via the valve when the valve is in the at least one open state. The at least one oil bunker is not connected to the oil sump via the valve when the valve is in the closed state.