Robert Boschgmbh

Sram Corporation

Andreas Guender

Jan Lukas Bierod

Rene Huettl

Ralf Maier

Marco Scholz

Brian T Jordan

Enrique Busquets

Andreas Vonend

Mark-Patrick Muehlhausen

Stefan-Georg Backhaus

Johannes Schwacke

Henning Noack

Marc Weigand

Emil Hanauer

Oleg Stefanjuk

Alexander Huber

Rebecca Lacour

Saskia Ryznar

Carina Issinger

Wolfgang Horn

Henning Freigang

Matthias Steiner

Andreas Weigel

Jan Dietz

Juergen Borgstedt

An integrated electro-hydraulic unit including an electric machine having a stator and a rotor. The integrated electro-hydraulic unit includes a hydraulic machine having a shaft configured to rotate around a central axis and a cylinder block coupled to the shaft. The cylinder block includes a plurality of bores receiving a plurality of pistons. The cylinder block is configured to rotate about the central axis to generate reciprocating movement of the plurality of pistons within the plurality of bores. The cylinder block and the shaft are coupled for rotation via a joint that accommodates bending of the shaft while maintaining a parallel orientation of the cylinder block with respect to the central axis. The joint is defined by a barrel-shaped portion of the shaft and a corresponding interior receiving portion of the cylinder block.

Integrated electro-hydraulic unit

An integrated electro-hydraulic unit has a hydraulic machine, an electric machine encircling the hydraulic machine and a housing at least partially surrounding the electric machine and the hydraulic machine. The hydraulic machine includes a rotary working group configured to pump a fluid. The electric machine includes a stator and a rotor coupled to the rotary working group such that the rotor drives the rotary working group. The housing includes a front cap and an end cap each having a plurality of tie rod openings. The housing includes a plurality of tie rods and a housing shell encircling the electric machine and positioned between the front and end caps. The tie rods extend through the openings in the front cap and end cap. Nuts are tightened on the tie rods such that the front cap, the end cap, and the housing shell are compressed via tension in the tie rods.

Integrated electro-hydraulic unit housing

A method for controlling a hydraulic system of a machine having a machine control system is disclosed. The hydraulic system includes at least one hydraulic output having an output element which can be controlled by way of activation variables and whose state can be described by state variables. The method includes registering the at least one hydraulic output, wherein registration data of the at least one hydraulic output is captured, wherein the registration data includes data concerning the activation variables and the state variables, and wherein the state variables include output state variables which describes the state of the output element of the at least one hydraulic output. The method further includes transmitting one or more data concerning the output state variables of the at least one hydraulic output to the machine control system. In addition, the method includes receiving from the machine control system a target preset for at least one of the output state variables of the at least one hydraulic output. The method also includes determining activation values for the activation variables of the at least one hydraulic output based on the target preset and activating the at least one hydraulic output with the activation values.

Method for controlling a hydraulic system and hydraulic control system

An integrated electro-hydraulic unit including a hydraulic machine having a shaft configured to rotate about an axis and a cylinder block. The cylinder block includes a distal portion spaced from the axis. The distal portion includes an axial span measured parallel to the axis. An electric machine has a stator and a rotor with an axial span measured parallel to the axis. The axial span of the rotor is larger than the axial span of the distal portion. A drive flange is situated between the distal portion and the rotor to define an interface. The rotor is secured to a rotor-receiving portion of the drive flange, and the distal portion is secured to a cylinder block-receiving portion of the drive flange. The axial span of the distal portion extends outside the axial span of the rotor.

A hydraulic machine includes a housing interior space and a group of hydrostatic working chambers which are mounted in said housing interior space so as to be rotatable about an axis of rotation and which, as the group rotates, are connectable alternately to a high pressure and to a low pressure of the hydraulic machine and exhibit leakage into the housing interior space. A heat exchanger device is accommodated in the housing interior space. The hydraulic machine may be associated with a hydraulic assembly and a hydraulic axle.

Hydraulic machine, hydraulic assembly having the hydraulic machine, and hydraulic axle having the hydraulic machine

A hydraulic unit includes an assembly with a hydrostatic positive displacement pump and an electric motor. The positive displacement pump includes a driving shaft configured to be driven by the electric motor. The hydraulic unit also includes an inert mass on which the assembly is rigidly mounted so as to minimize vibration of the assembly and reduce noise emission from the assembly.

Hydraulic unit

A hydraulic unit includes a tank configured to be filled with a hydraulic fluid. The tank has at least one inflow connection and at least one outflow connection. A flow guide for the hydraulic fluid is formed between the inflow connection and the outflow connection. The flow guide is configured to have at least two 180&#xb0; flow arcs configured to cool and calm the hydraulic fluid and to avoid dead zones.

Tank for a hydraulic unit

A hydraulic distributor block for fluid guidance, having at least two port surfaces which each have at least one port opening. The port openings of the port surfaces are connected by a flow duct, with the flow duct having at least one bend which is continuously curved and the port surfaces being spatially separated from one another.

Hydraulic distributor block, hydraulic assembly, and method

A tank has an annular tank space, and a separating wall for separating an inflow connection from a drain connection is provided therein. Alternatively, or in addition thereto, a partition for degassing the oil in the tank is provided. Furthermore, alternatively or in addition thereto, at least one partition for extending a flow path of the oil is provided. It is also conceivable, alternatively or in addition thereto, to arrange a cooling device in the annular space.

Tank, and electrohydraulic compact assembly having a tank

A hydraulic system has a fluid path which connects two system components fluidically to one another and which comprises a hydraulic hose. It is known to form a fluid path between two components of a hydraulic system, for example between a pump and a control block, by a single hydraulic hose which is designed in accordance with the maximum volume flow and the maximum pressure. A hydraulic hose for large volume flows and high pressures is disproportionately expensive relative to a hydraulic hose for smaller volume flows and, on account of its larger internal and external diameters, has a larger minimum bending radius than a hydraulic hose for smaller volume flows. In order to provide a cost-effective and compact structure, a hydraulic system according to the disclosure has the fluid path formed by at least two hydraulic hoses arranged fluidically parallel to one another.

Hydraulic system

A hydraulic unit having a housing includes a tank and a pump arranged adjacent to one another in a fluid supply region, and a controller region is arranged thereabove. Since the pump is embodied in an upright design, a compact hydraulic unit with a small footprint is implemented.

A baseplate has a top side that includes a support surface and a collecting surface. A hydraulic appliance is configured to be fastened on the support surface. The collecting surface is arranged lower in relation to the support surface so as to collect leakage oil of the appliance.

Baseplate for a hydraulic appliance, and hydraulic appliance

A hydrostatic compact assembly includes an electric motor, a tank, and a pump. The pump is configured to deliver a pressure fluid from the tank to a consumer connection. The tank has a circular ring-like shape that surrounds the electric motor and the pump.

Electrohydraulic compact assembly

A hydraulic brake control apparatus for attaching to an open ended handlebar of a vehicle, the handlebar having a longitudinal axis. The hydraulic brake control apparatus includes a brake housing that is attachable to the handlebar, the brake housing including a first section residing outside the handlebar, and a second section sized and shaped to be received inside the handlebar.

Growing community of inventors

Ramsthal, Germany

Andreas Guender