The gearbox clutch support structure containing a crank, a crank bearing, a clutch pipe, a leverage and a bottom bracket cup characterized in that it contains said crank bearing (2) that is mounted in said crank (1) and it contains said clutch pipe (3) that is mounted inside of said crank bearing (2), wherein said clutch pipe (3) is rigidly fixed to said leverage (4), wherein said leverage (4) is mounted on said bottom bracket cup (5).

The gearbox clutch support structure containing a crank, a crank bearing, a clutch pipe, a leverage and a bottom bracket cup characterized in that it contains said crank bearing (2) that is mounted in said crank (1) and it contains said clutch pipe (3) that is mounted inside of said crank bearing (2), wherein said clutch pipe (3) is rigidly fixed to said leverage (4), wherein said leverage (4) is mounted on said bottom bracket cup (5).

An exemplary shift lever includes a mounting assembly, a flexible member coupled to the mounting assembly, and an interface coupled to the flexible member. The flexible member is resilient so as to provide a selected biasing force at a predetermined deformation angle, and flexible enough to elastically deform across a selected angular range. The mounting assembly is configured for connection with the input shaft of a transmission, and the interface is configured for connection with an output of a drive selector.

An exemplary shift lever includes a mounting assembly, a flexible member coupled to the mounting assembly, and an interface coupled to the flexible member. The flexible member is resilient so as to provide a selected biasing force at a predetermined deformation angle, and flexible enough to elastically deform across a selected angular range. The mounting assembly is configured for connection with the input shaft of a transmission, and the interface is configured for connection with an output of a drive selector.

A horizontal directional drilling system. The system has a pilot drill and an exit side drill, with a drill string extending between them. A backreamer is positioned between the drills to enlarge a borehole. The pilot drill pulls and rotates the backreamer. The exit side drill adds segments to the product pipe and pushes the product pipe into the enlarged borehole. The exit side drill is equipped with a rotational disconnect. The disconnect is engaged to allow torque transfer between a motor and a spindle when adding segments to the product pipe. The disconnect is disengaged to prevent torque transfer between the motor and the spindle when pushing the product pipe into the enlarged borehole.

A four-wheel-drive vehicle includes: a pump that is actuated by an electric motor; a friction clutch that has a plurality of clutch plates that are pressed by a piston that is movable by working oil discharged from the pump; a control device that controls the electric motor; front wheels, to which a drive force of an engine is always transferred; and rear wheels, to which the drive force of the engine is transferred in accordance with the fastening force of the friction clutch. When it is determined that the vehicle is in a high fastening force-requiring state in which it is necessary for the friction clutch to transfer a large drive force temporarily, the control device causes the electric motor to output torque that is larger than torque that the electric motor can continuously output.

A drive apparatus for a hybrid vehicle has an internal combustion engine, which has a crankshaft for outputting a drive power, and a torsional vibration reduction device, which is designed to reduce torsional vibrations and to transfer drive power from the crankshaft in the direction of a drivable wheel of the motor vehicle. A clutch device has a clutch input side, a clutch output side, a form-fit clutch and a frictional clutch. The torque transfer from the clutch input side to the clutch output side and thus from the crankshaft to the drivable wheel can be selectively produced, wherein the torque transition from the clutch input side to the clutch output side is enabled as soon as at least one of the two clutches is closed. The torsional vibration reduction device is arranged after the clutch device, relative to the torque transmission from the crankshaft in the direction of the drivable wheel. The clutch input side is connected to the crankshaft for conjoint rotation and the clutch output side is connected to the torsional vibration reduction device for conjoint rotation.

Methods and systems are provided for operating an electromagnetic coil assembly. As one example, a method comprises responsive to energization of an electromagnetic coil of an electromagnetic coil assembly, translating the electromagnetic coil along a central axis of the electromagnetic coil assembly toward a magnetic armature while maintaining the armature fixed along the central axis. The electromagnetic coil assembly may be utilized within various clutching, braking, or lever applications.

An auxiliary drive device includes: a drive unit that has an electric motor; a meshing clutch that has a first meshing member and a second meshing member; an actuator that moves the second meshing member; and a control unit that controls the electric motor and the actuator. The actuator moves the second meshing member among a separation position, at which the second meshing member is not meshed with the first meshing member, an abutment position, at which first meshing teeth and second meshing teeth possibly abut against each other, and a meshing position, at which the first meshing teeth and the second meshing teeth are meshed with each other. The control unit makes a current supplied to the electric motor when the second meshing member is located between the abutment position and the meshing position smaller than a current required to maintain the rotational speed of the electric motor.

Claw-type shifting mechanism (5) with a first sliding sleeve (17) and a fixed coupling element (19). In order to produce a passage, the first sliding sleeve (17) and the coupling element (19) each respectively have at least one recess (31, 35) and at least one web section (32, 36), in which the first sliding sleeve (17) and the coupling element (19) can be arranged together radially on the outside on a first shaft. The first sliding sleeve (17) can be displaced along the first shaft and the coupling element (19) can be connected firmly to the first shaft. The drive arrangement (1) comprises at least one drive machine, a transmission with a first shaft, a second shaft and a third shaft, a housing, and a claw-type shifting mechanism (5) of this type.