Zahnradfabrik Friedrichshafen, Ag.

Max Schuster

Harald Wendl

Dieter Maurer

Jurgen Rauter

Annast Rudolf

Reinhard Friedl

Claw coupling with large angle of deflection and small retaining and

This anti-lead seal prevents the accumulation of torsional and tangential stresses on one and the same sealing element by way of an intermediate sleeve (6) which forms an axial seal gap (7) with one of the coordinated corrugated or housing-like machine parts (1, 2) and a radial seal gap (8) with the other. Since the intermediate sleeve (6) is firmly retained via a torsional safety (11) and an axial fixation (13), the sealing elements (9) for the radial seal gap (7) are stressed only by relative axial movements and the sealing elements (12) for the axial seal gap (8) are stressed only by rotational movements. Here simple elastomeric parts can be used that are easy to supply and can be quickly mounted.

Liquid seal for machine parts moving rotationally and axially in

These drive connections with freewheel mechanisms, especially provided for advancing and reversing operation of all-wheel vehicles, have at their disposal fully self-acting reversing shift rings (13) depending exclusively on the respective direction of rotation of the shafts (1, 2) serving as sensors of direction of rotation (22) after the reversal operation there are provided locking elements that become entirely free from torque transmission and have controlling forces dependent on direction of rotation (helical toothing, tiltable ratchets, detent balls, etc.) on a shift ring (13) which is movable by the sensor of direction of rotation (22). Longitudinal or rotational displacements of the shift ring (13) as result of dragging by the sensor of direction of rotation (22) upon change in direction of rotation always self-acting come into gear on these coupling toothings (13, 14, 29) mounted on the output side with countertoothings (12, 31, 45) of toothing bodies (30) non-rotationally held on the output shaft (2) in a manner such that each time only the freewheel direction of rotation corresponding to the torque direction if locked. Said clutch toothings (13, 14, 29, and 12, 31, 45) in addition can be optionally kept open by means of a servo actuator cylinder (43/48) for operations such as braking where any freewheel action must be switched off in order, for instance, to allow every time the brake torques of all axles also fully to retroact reliably on the engine.

Drive connection with a freewheel mechanism

An axle drive mechanism for an automotive vehicle whose transmission is connected to a continuously coupled axle. The mechanism has a drive shaft forming part of another axle, a drive wheel rotatably mounted on the drive shaft and operatively connected with the transmission and the selectively connected axle, a clutch between the wheel and the shaft actuatable for rotatably coupling the wheel and the shaft to selectively engage the other axle, and a parking brake for the axles. The parking brake comprises a housing, a first brake between the wheel and the housing, and a second brake between the shaft and the housing. A common actuator is provided for both brakes, thereby immobilizing both of the axles independently of the operation of the clutch.

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Passau, Germany

Max Schuster