Zf Friedrichshafen Ag

Rheinmetall Man Military Vehicles Oesterreich Gesmbh

Rheinmetall Man Military Vehicles Österreich Gesmbh

Martin Lang

Thomas Auer

Maria Lang

Harald Wendl

Sebastian Paulik

Gerhard Obermaier

Martin Leitner

Rudolf Pertlik

Michael Deimel

Heinz Milchrahm

An electric machine () for driving a motor vehicle includes a stator () having at least one winding overhang (). Cooling fluid is flowable in the area of the at least one winding overhang () to receive heat from the at least one winding overhang (). Air is flowable in the area of the at least one winding overhang () to receive heat from the cooling fluid.

Electric machine for driving a motor vehicle

A heat sink () for cooling an electric machine (), includes: a first part of the heat sink () in the form of a hollow cylinder, wherein an inner lateral surface includes a groove () extending helically with respect to a central axis of the hollow cylinder; a second part of the heat sink () in the form of a hollow cylinder, which includes a radially internal fin (); and a third part of the heat sink () in the form of a hollow cylinder, which includes a connecting section (), in order to accommodate an output shaft () of the machine in a rotationally fixed manner. The second part of the heat sink is accommodated, at least partially, in the first part of the heat sink, so that a radially external surface of the second part of the heat sink rests against the groove.

Heat sink for an electric machine

An electric machine includes a stator () and a rotor (), which are arranged in a housing (). A liquid cooling jacket is configured for cooling the stator (). At least one extended surface cooler (), which is connected to the liquid cooling jacket via a housing wall, is provided in an interior of the housing () for direct cooling of components arranged in the interior of the housing (). Moreover, an axle drive of a vehicle may include the electric machine.

Electric machine with an extended surface cooler

A cooling arrangement for an electric machine () includes a rotatably mounted rotor shaft (). A rotatably mounted hollow shaft () is mounted coaxially to the rotor shaft () and rotationally fixed to the rotor shaft (). A hollow shaft inner side () is spaced apart from a rotor shaft outer side () in a radial direction (R) in order to form an annular gap (). At least one cooling duct for a cooling lubricant includes a hollow shaft duct (), a feed duct (), and an outlet duct (). The feed duct () opens into the hollow shaft duct () in order to feed the cooling lubricant to the hollow shaft duct (). The outlet duct () extends from the hollow shaft duct () to the annular gap () in order to release the cooling lubricant from the hollow shaft duct () into the annular gap ().

Cooling arrangement for an electric machine, and electric machine

A shaft () for cooling an electric machine () includes: an outer sub-shaft (), which is designed for being rotationally fixed to a rotor () of the electric machine; an inner sub-shaft (), which is rotationally fixed to the outer sub-shaft and is designed as an output shaft of the electric machine; an inflow () arranged in the radial direction between the outer sub-shaft and the inner sub-shaft, in order to supply cooling fluid () to the shaft; and an outflow () arranged in the radial direction between the outer sub-shaft and the inner sub-shaft, in order to discharge cooling fluid supplied to the shaft. The outer sub-shaft encloses a fluid chamber (), which is arranged in the axial direction between the inflow and the outflow. A direction of flow of cooling fluid in the fluid chamber is established by a delivery direction of a fluid pump ().

Shaft for an electric machine

A differentialincludes a differential spiderand a differential housing. The differential spiderincludes a bolt bodywith four bolt sectionsand four bevel gears. The bevel gearsare mounted on the bolt sections. The differential spideris arranged in the differential housing. The differential housingdefines an axis of rotation R. The bolt bodyincludes a main differential boltincluding two bolt sectionsand two differential bolts, each of which includes a bolt section. The main differential boltincludes a locating section. The differential boltsare accommodated in the locating section

Differential device and vehicle having said differential device

A locking mechanism having a lock and a locking bolt for the detachable fixing of a tiltable driver's cab on the chassis of a military motor vehicle. A shared joint (knee) of a knee lever, which has two one-armed lever arms of different lengths, is used as the locking element of the lock, the joint engaging with a corresponding recess of the locking bolt in the locked position of the locking mechanism. The short lever arm of the knee lever is pivotably supported on its end facing away from the knee in a fixed bearing, and the long lever arm of the knee lever is pivotably supported by its end facing away from the knee with the first lever arm of a reversing lever pivotable around a pivot axis. The second lever arm of the reversing lever is connected to a drive for pivoting the reversing lever, so that a pivot motion of the reversing lever induces a motion of the knee of the knee lever into or out of the recess of the locking bolt.

Growing community of inventors

Wegscheid, Germany

Martin Lang