The assembly comprises: —a differential housing (24a) having a longitudinal axis (23); —a differential side gear (18) connected to a drive shaft (11), rotatably mounted inside and relative to the differential housing around the axis; —a blocking system for blocking the differential unit operation, comprising: —a blocking member (50) mounted inside the differential housing in a rotationally fixed manner; —and an actuation system (60) for sliding the blocking member along the axis between a blocking position, in which the blocking member and the differential side gear are rotationally secured to one another, and a released position. The actuation system comprises: —a connecting device (70) comprising: —an outer portion (80) mounted on and outside the differential housing in a rotationally fixed manner, wherein the outer portion can slide relative to the differential housing along the axis; —a through portion (71) which extends through the differential housing peripheral wall and fixedly connects the connecting device outer portion (80) and the blocking member (50); —an actuation device (65) located outside the differential housing (24a) and capable of moving the blocking member (50) relative to the differential housing (24a) between said released and blocking positions, via the connecting device (70).

A hydraulically-actuated device comprises a self-contained fluid reservoir comprising a tank for receiving a fluid, a reservoir port, and a flexible diaphragm. An actuation member comprises a hydraulically actuated piston in a cylinder. A pump case comprises an inlet port and an outlet port, the inlet port in fluid communication with the reservoir port, and the outlet port in fluid communication with the actuation member. A pump is within the pump case. The pump can be a reversible pump. The flexible diaphragm can flex in to the fluid reservoir when the pump transfers a fluid from the fluid reservoir to the actuation member and can flex away from the fluid reservoir when the pump transfers fluid from the actuation member to the fluid reservoir. The flexible diaphragm can hermetically seal a fluid within the fluid reservoir and have a second side in communication with atmospheric pressure.

A hydraulically-actuated device comprises a self-contained fluid reservoir comprising a tank for receiving a fluid, a reservoir port, and a flexible diaphragm. An actuation member comprises a hydraulically actuated piston in a cylinder. A pump case comprises an inlet port and an outlet port, the inlet port in fluid communication with the reservoir port, and the outlet port in fluid communication with the actuation member. A pump is within the pump case. The pump can be a reversible pump. The flexible diaphragm can flex in to the fluid reservoir when the pump transfers a fluid from the fluid reservoir to the actuation member and can flex away from the fluid reservoir when the pump transfers fluid from the actuation member to the fluid reservoir. The flexible diaphragm can hermetically seal a fluid within the fluid reservoir and have a second side in communication with atmospheric pressure.

The invention relates to an assembly for a differential unit (10) of a vehicle, comprising:a differential housing (24a) having a longitudinal axis (23);a differential side gear (18) configured to be connected to a drive shaft (11) capable of being connected to a wheel of a vehicle, the differential side gear being located inside the differential housing and being rotatably mounted relative to the differential housing around the longitudinal axis;a blocking system (100) for blocking the differential unit operation, comprising a blocking member (50) movable between a released position and a blocking position, and an actuation system (60) for moving the blocking member (50) between said released and blocking positions; wherein the blocking member (50) is located inside the differential housing (24a) and is configured to rotationally secure the differential housing (24a) and the differential side gear (18).

The invention relates to an assembly for a differential unit (10) of a vehicle, comprising:a differential housing (24a) having a longitudinal axis (23);a differential side gear (18) configured to be connected to a drive shaft (11) capable of being connected to a wheel of a vehicle, the differential side gear being located inside the differential housing and being rotatably mounted relative to the differential housing around the longitudinal axis;a blocking system (100) for blocking the differential unit operation, comprising a blocking member (50) movable between a released position and a blocking position, and an actuation system (60) for moving the blocking member (50) between said released and blocking positions; wherein the blocking member (50) is located inside the differential housing (24a) and is configured to rotationally secure the differential housing (24a) and the differential side gear (18).

In a hydraulic clutch actuation system for controlling in particular a clutch-controlled compensation unit of a drivetrain of a motor vehicle, in which hydraulic clutch actuation system a hydraulic pump is used for generating hydraulic pressure in a hydraulic fluid for the purposes of clutch actuation by means of a hydraulic clutch actuation device, provision is made whereby the hydraulic fluid is supplied as clutch oil to the friction members of the friction clutch which are to be oiled with clutch oil (cooling and/or lubricating oil). In this way, improved and more reliable oiling of the clutch can be made possible even at low vehicle speeds and under heavy clutch load, wherein, despite this, very rapid dry-running of the cutches, and low power losses generated by the clutch oiling, are ensured.

In a hydraulic clutch actuation system for controlling in particular a clutch-controlled compensation unit of a drivetrain of a motor vehicle, in which hydraulic clutch actuation system a hydraulic pump is used for generating hydraulic pressure in a hydraulic fluid for the purposes of clutch actuation by means of a hydraulic clutch actuation device, provision is made whereby the hydraulic fluid is supplied as clutch oil to the friction members of the friction clutch which are to be oiled with clutch oil (cooling and/or lubricating oil). In this way, improved and more reliable oiling of the clutch can be made possible even at low vehicle speeds and under heavy clutch load, wherein, despite this, very rapid dry-running of the cutches, and low power losses generated by the clutch oiling, are ensured.

A hydraulic control unit (HCU) assembly, for an electro-hydraulic limited slip differential system for a vehicle, includes a support bracket configured to couple to an underbody of the vehicle in a location remote from a live axle assembly of the vehicle, and an HCU including an integrated accumulator and reservoir assembly, a control valve assembly, and a motor and hydraulic pump assembly. The HCU is coupled to the support bracket.

A hydraulic control unit (HCU) assembly, for an electro-hydraulic limited slip differential system for a vehicle, includes a support bracket configured to couple to an underbody of the vehicle in a location remote from a live axle assembly of the vehicle, and an HCU including an integrated accumulator and reservoir assembly, a control valve assembly, and a motor and hydraulic pump assembly. The HCU is coupled to the support bracket.

A drive module having a housing, an input pinion, a ring gear driven by the input pinion, a ring gear bearing supporting the ring gear for rotation relative to the housing, a pair of output shafts and a clutch that selectively transmits rotary power between the ring gear and the output shafts. The clutch includes a clutch input, which is rotatably coupled to the ring gear, a clutch pack separator that is rotatably coupled to the clutch input, a pair of clutch outputs, which are each coupled to a respective one of the output shafts, a pair of clutch packs, which transmit rotary power between the clutch input and a respective one of the clutch outputs, and a pair of apply pistons. The apply pistons are housed in the clutch pack separator.