Robert Boschgmbh

Brueninghaus Hydromatik Gmbh

Other

Clemens Krebs

Herbert Dreher

Timo Nafz

Michael Duerr

Gerhard Betz

An axial piston machine includes a housing having a casting which is optimized with respect to casting. An insert ring which is optimized with respect to a pressure load is formed in the bottom of the housing. The insert ring is configured to be used with such an axial piston machine.

Axial piston machine having an insert ring and an insert ring for an axial piston machine

An axial piston machine includes a housing part, a drive shaft, which is mounted in the housing part, and a cylinder drum, which is connected to the drive shaft in a rotationally fixed manner and which accommodates a plurality of pistons. Each of the pistons bound a working chamber and are supported on a swashplate. The working chambers can be connected in alternation to a high-pressure channel and to a low-pressure channel, which extend in the housing part. An insert part is rigidly inserted into the housing part. A control surface of the insert part is directly opposite the cylinder drum. The insert part has a high-pressure channel section and a low-pressure channel section, which have approximately kidney-shaped opening areas in the control surface. The other openings of the high-pressure and low-pressure channel sections opposite the opening area in the control surface are formed radially on the insert part.

Axial piston machine

A hydrostatic machine having an actuating device for adjusting a displacement volume of the hydrostatic machine is provided. The actuating device has a return element for actuating a control valve as a function of a position of the actuating device. A valve unit is further provided for adjusting an actuating pressure of the actuating device, which is activated mechanically by means of the return element.

Hydrostatic machine having a control device having a return element for controlling a regulating valve

A retaining segment for retaining a back-up plate of a hydrostatic piston machine is disclosed. The retaining segment has a recess for an actuating element of an adjusting device and a retaining surface that extends along an arc section. A stop surface is formed on the retaining segment. The stop surface and the receiver for an actuating element are formed on opposing ends of the retaining segment and are oriented towards a side remote from a mounting surface.

Retaining segment

An axial piston machine is provided. The pivoting cradle of the axial piston machine has variable tilt. The axial piston machine has at least one adjustment device extending substantially in the longitudinal direction of the axial piston machine. The axial piston machine further has a return element for returning to a position of the pivoting cradle. The return element and the adjustment device are disposed in a plane extending parallel to an axis of rotation of the axial piston machine and perpendicular to a pivoting axis of the pivoting cradle.

Axial piston machine having a return device

An axial piston machine is provided, which has a swivel cradle, the inclination of which can be modified in relation to a rotational axis of a cylinder drum. A regulation system acts on the swivel cradle, which has a first regulator for adjusting the inclination of the swivel cradle in a first displacement direction and a second regulator for adjusting the inclination in an opposite second displacement direction. The first and second regulators are located on opposite sides of the swivel cradle in relation to the rotational axis. The axial piston machine also has a device for limiting the displacement of the swivel cradle, which has a first adjustable limiting device and a second adjustable limiting device, which each act on the swivel cradle and are located on opposite sides of the swivel cradle in relation to the rotational axis.

Axial piston machine having swivel cradle actuating pistons and displacement limiting devices

An axial piston machine in a swash-plate construction with an actuating device. The actuating device comprises a actuating piston and a mating piston. The actuating piston and the mating piston are connected to the swash plate each with the first end thereof and can be applied with the second end thereof with a force acting in the direction of the first end. For resetting the swash plate in the direction of a resting position, an elastic element is provided on the actuating piston and on the mating piston, which is supported on a spring bearing arranged on the first side facing the swash plate of the actuating piston or of the mating piston. In the other direction, the elastic element is supported on a second spring bearing arranged on the end facing away from the swash plate of the actuating piston or of the mating piston. When the swash plate is deflected from the resting position, the second spring bearing of the actuating piston or of the mating piston is supported on a counter bearing on the housing side. The second spring bearing of the respective other actuating bearing or mating bearing is supported on a counter bearing on the piston side.

Axial piston machine in a swash-plate construction having an adjusting device

The invention relates to a valve which is insertable into a receiving recess () of a valve carrier (), the valve (') comprising a first housing part (&#x2032;) and a closing body (). The closing body () cooperates with a sealing surface () to form a sealing seat, the valve (&#x2032;) being fixable in the receiving recess () of the valve carrier () by means of the first housing part (&#x2032;). A second housing part (&#x2032;) is connectable by way of a first end () to the first housing part (&#x2032;) and the sealing surface () cooperating with the closing body () is formed on the second housing part (&#x2032;).

Valve

The invention relates to a drive system () having a first driving shaft () and having a second driving shaft (). The second driving shaft () is connected to a cylinder barrel of a hydrostatic piston machine () in a torsionally rigid manner. The displacement volume of the hydrostatic piston machine () can be shifted by means of a shifting means (), and the first driving shaft () can be mechanically coupled to the second driving shaft () through a clutch (). The shifting means () and the clutch () can be actuated hydraulically and, for the purpose of actuation, are connected to a common control-pressure connection () or a common working-line connection ().

Drive system having a common control-pressure connection

Disclosed is a check valve () that is screwed into a threaded bore () of a housing () of a hydraulic subassembly between a first pressure side () and a second pressure side () by means of an external thread () which is disposed in a first cylinder section () of a cylindrical valve housing () of the check valve (). A passage duct () which allows a hydraulic fluid to flow between the sidewall of the threaded bore () and a first removed portion () of the surface area () of the cylindrical valve housing () is embodied in at least one angular segment (a, a, and a) of the valve housing ().

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Tuebingen, Germany

Clemens Krebs