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Zf Friedrichshafen Ag

Kurt Bathe

Dirk Blechschmidt

Thomas Ebert

Heinz Bassner

Jens Cizmarik

Wolfgang Bernau

An oil supplying device () for a vehicle transmission () having one transmission housing () with gears () situated upon shafts () and having teeth, bearings in which gears () and shafts () are rotatably mounted and one switch gear () suited to connect the gears () and shafts () for a transmission of torque. The device has an oil collecting duct () arranged on movable elements () of the switch gear () which moves with the elements () of the switch gear () and which extends substantially through the part in the transmission housing () having all the gears (). The oil collecting duct () has at least one opening () which during movements of the elements () of the switch gear () coats areas within the transmission housing () on which the bearings and teeth are situated.

Oil supplying device

In a synchronizing device ( ) for shift clutches, specially of selector transmissions ( ) for motor vehicles, having at least one pair of wheels of which the gearwheel coaxial with a sliding sleeve ( ) has a clutch body ( ) with outer tooth ( ) which by axial displacement of the sliding sleeve ( ), non-rotatably connected with a shaft ( ) via a synchronizer body ( ) and having an inner tooth ( ), can be switched in and off the power flow. A synchronizer ring ( ) has in peripheral direction a form-locking connection with the sliding sleeve ( ) and a frictional-engagement connection with the clutch body ( ) and has blocking surfaces ( ) for the sliding sleeve ( ) which upon each relative rotation between clutch body ( ) and sliding sleeve ( ) prevent in the end positions defined by the form-locking connection between synchronizer ring ( ) and sliding sleeve ( ) an engagement of the inner tooth ( ) of the sliding sleeve ( ) with the outer tooth ( ) of the clutch body ( ) and allow the engagement only when synchronous rotational speed is attained during rotation of synchronizer ring ( ) and clutch body ( ). The downshift blocking surface ( ) on the inner tooth ( ) of the sliding sleeve ( ) has an axial extension ( ) smaller than the axial extension ( ) of the upshift blocking surface ( ).

Synchronizing device with asymmetrical toothing

Growing community of inventors

Brandenburg, Germany

Kurt Bathe