Hydromatik Gmbh

Brueninghaus Hydromatik Gmbh

Mannesmann Rexroth Gmbh, Jahnstrasse

Rainer Stolzer

Manfred Lotter

Egon Eisenbacher

Peter Wusthof

The invention relates to an axial piston engine ( ) comprising a housing ( ) and a cylinder drum ( ) that is pivotably arranged in one interior space ( ) of the housing. Several cylinder bores ( ) are embodied in said cylinder drum ( ). Pistons ( ) are moveably guided in said cylinder bores ( ) and rest on a swash plate ( ) by means of guide shoes ( ). The axial piston engine ( ) also comprises a retracting device ( ). The guide shoes ( ) rest on the retracting device ( ) when the pistons ( ) are retracted. A restraint system ( ) is accommodated in the housing ( ), can be moved against a spring ( ) and is used for supporting the retracting device ( ) at the housing ( ). The aim of the invention is to improve and stabilise the support of the retracting device ( ). To this end, the retracting device ( ) is supported by a support device ( ) which is situated behind the retracting device ( ) at the side facing away from the swash plate ( ). The support device is connected to the swash plate ( ). The restraint system ( ) supports the back of an essentially radial locating face ( ) at the swash plate ( ) or an add-on piece thereof when the restraint system ( ) is pushed into the interior space ( ) of the housing.

Axial piston engine

Axial piston machine with transverse and rotary adjustment of the

To make possible a small, compact construction of a hydrostatic transmission comprising a housing containing a valve-controlled piston pump, in particular an axial piston pump, which includes a first drive part rotatably driven by a drive shaft and a stationary cylinder block with pistons, and comprising a piston motor, in particular an axial piston motor, connected to the pump by at least one hydraulic line, the motor comprises a non-rotatable second drive part and a rotatable cylinder drum and is integrated in the housing of the pump on the side opposite to the first drive part, and the cylinder drum is fixed non-rotatably on an output shaft and is arranged at least partly in a recess in the cylinder block of the pump.

Hydrostatic transmission containing an axial piston motor located in a

The invention relates to a pump, in particular to an axial piston pump of the swash plate type, wherein the suction pressure medium is fed into the swash plate chamber, so as to be arranged in layers of different pressure. The pressure medium is removed from a desired pressure layer and supplied to the pump chamber so as to obtain a desired pump flow characteristic.

Axial piston pump

An axial piston machine of the inclined axis type is operable as a pump or motor has a drive shaft, a drive plate rotatable with the drive shaft, a machine housing, a drum having cylindrical bores inclined to the axis of rotation of the drive plate, pistons reciprocally mounted in the bores and connected to the drive plate, and an axial slide bearing and a radial slide bearing arranged in the housing to provide axial and radial support for the drive plate, in which an improved radial slide bearing comprises a circumferentially spaced arrangement of pressure chambers formed in the outer periphery of the drive plate each corresponding to a respective one of the cylindrical bores, the pressure chamber opening outwardly of the drive plate to form a hydrostatic and a hydrodynamic radial slide bearing with an adjacent internal bearing surface of the housing. Each pressure chamber communicates with a respective cylindrical bore and receives a supply of the operating medium of the machine, and is angularly displaced relative to the cylindrical bores so as to follow or precede the cylindrical bore with respect to the direction of rotation of the drive plate in pump operation or in motor operation, respectively.

Growing community of inventors

Neu-Ulm, Germany

Rainer Stolzer