Robert Boschgmbh

Martin Zug

Timo Nafz

Josef Beck

Christian Spielvogel

Rene Scheerer

Stefan Merz

Manuel Sell

Ulrich Gordon Mohn

Felix Hoffmann

A hydrostatic axial piston machine is disclosed, in the housing of which a drive shaft is rotatably mounted about an axis of rotation. The housing comprises a pot-like housing part having a first abutment and a cover-like housing part having a second abutment. The two abutments are clamped against one another in a sealing manner. A first fitting pin is inserted precisely into a first fitting recess of the first abutment on the one hand and into a second fitting recess of the second abutment on the other hand. A second fitting pin is provided on a side opposite the axis of rotation, which is inserted precisely into a third fitting recess of the first abutment on the one hand and into a fourth fitting recess of the second abutment on the other hand. The second fitting recess has a radial widening relative to the axis of rotation, whereby the second fitting recess is a slotted hole and/or a fitting groove.

Centering the housing parts of an axial piston machine

A hydrostatic positive-displacement machine, in particular a hydrostatic axial piston machine, having a cylinder drum with at least one cylinder, in which a longitudinally displaceable piston is received, which is supported directly or indirectly by a support portion on an inclined plane of the positive-displacement machine. An outer circumferential surface portion of the piston is in bearing contact with an inner circumferential surface portion of the cylinder.

Hydrostatic positive-displacement machine piston for the hydrostatic positive-displacement machine, and cylinder drum for the hydrostatic positive-displacement machine

A spring return apparatus for elastically prestressing sliding pads against a sliding bearing face of an axial piston machine. The sliding pads are positioned on working pistons mounted axially movably in cylinders of a cylinder barrel that drives a drive shaft including a spring plate and a supporting plate. The spring plate includes a ring region surrounding a central opening, and levers extending radially from the ring region. The levers are arranged spaced apart or distributed uniformly in the circumferential direction, and are elastically flexible and/or elastically pivotable in the axial direction. Every two adjacent levers delimit a receiving region for receiving a tapered section of a working piston or a sliding pad. The supporting plate has a circular ring-shaped supporting region configured to support radially outer end sections of the levers if the supporting plate is arranged concentrically with respect to and axially adjacently to the spring plate.

Spring return apparatus for an axial piston machine of swash plate design for elastically prestressing sliding pads against the swash plate, and axial piston machine having a spring return apparatus of this type

An adjustable hydrostatic axial piston machine of swash plate design includes an actuating apparatus with a cylinder/piston unit and an actuating spring. The actuating apparatus is configured to adjust a pivot cradle of the axial piston machine. The actuating spring engages around at least one axial section of the cylinder/piston unit.

Hydrostatic axial piston machine

A machine housing of a piston machine is disclosed. The machine housing is formed in two parts. The machine housing has a main housing which is closed off by a connection plate. Here, the connection plate is screwed to the main housing by means of a plurality of screws, and is positioned with low tolerances with respect to said main housing by means of two centering pins. Here, the centering pins are arranged with twofold rotational symmetry with respect to a shaft axis of a drive shaft of the piston machine. In contrast, screw positions do not have rotational symmetry with respect to said shaft axis. This prevents incorrect mounting of the connection plate.

Machine housing of a hydraulic machine

A pump unit includes a main pump () and a charge pump (), the pump capacity of which is adjustable via an adjusting element. To adjust the pump capacity of the charge pump (), an adjusting element of the charge pump () is acted upon by an adjusting force which is dependent on the inlet pressure of the main pump ().

Growing community of inventors

Hirrlingen, Germany

Martin Zug