# US 2018/0320674 A1 · Hydraulic device

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- Number: US 2018/0320674 A1
- Document ID: US20180320674A1
- Status: Published application
- Kind: A1
- Application number: 15/773,906
- Filed: 2016-11-04
- Published: 2018-11-08
- Earliest claimed: 2015-11-06
- Assignees: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Applicants: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Inventors: Marcus CLEV
- Web page: https://patentgrep.com/patent/US20180320674A1

## CPC

- F04B 23/028: {the pump being mounted on top of the reservoir}
- F04B 17/03: driven by electric motors
- F04B 23/02: having reservoirs
- F04B 23/025: {the pump being located directly adjacent the reservoir}
- F15B 1/26: Supply reservoir or sump assemblies
- F15B 13/0814: {Monoblock manifolds}
- F04B 53/1095: {Valves linked to another valve of another pumping chamber}
- F04C 11/008: {Enclosed motor pump units}
- F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F)
- F15B: SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS

## Abstract

The invention relates to a hydraulic device for a rail vehicle including a tank region for a hydraulic fluid, a motor having a pump for pumping the hydraulic fluid, a hydraulic connection panel for providing hydraulic fluid paths and for holding hydraulic components, a control region for controlling the hydraulic components, and a housing. The tank region and the control region are arranged on opposite sides of the hydraulic connection panel. The motor is arranged together with the pump on one side of the hydraulic connection panel.

## Claims

### Claim 1

A hydraulic device for a rail vehicle with a tank region for a hydraulic fluid, a motor with a pump for pumping the hydraulic fluid, a hydraulic connection panel for providing hydraulic fluid paths and for holding hydraulic components, and a control region for controlling the hydraulic components,
wherein the tank region and the control region are arranged on opposite sides of the hydraulic connection panel, and
wherein the motor is arranged together with the pump on one side of the hydraulic connection panel.

### Claim 2 (depends on 1)

The hydraulic device of claim 1, wherein the hydraulic components comprise at least one valve and/or at least one sensor, which are electrically controllable, and wherein the control region comprises a connector unit and an electrical interconnection which interconnects electro-hydraulic components with the connector unit so that the electro-hydraulic components are controllable from outside the housing.

### Claim 3 (depends on 1)

The hydraulic device of claim 1, wherein the pump is arranged between the motor and the hydraulic connection panel, or the motor is arranged between the pump and the hydraulic connection panel.

### Claim 4 (depends on 1)

The hydraulic device of claim 1, wherein the pump and the motor comprise a common shaft or two shafts coupled together, wherein the rotation shaft(s) is/are separated from the hydraulic connection panel.

### Claim 5 (depends on 1)

The hydraulic device of claim 1, wherein the pump is arranged together with the motor in the tank region.

### Claim 6 (depends on 5)

The hydraulic device of claim 5, wherein the tank region comprises a tank for storage of the hydraulic fluid and the pump is accommodated with the motor in the tank.

### Claim 7 (depends on 1)

The hydraulic device of claim 1, further comprising a support structure for holding the motor and the pump, wherein the support structure is supported in the control region or in the tank region.

### Claim 8 (depends on 7)

The hydraulic device of claim 7, wherein the support structure is coupled to the hydraulic connection panel or the pump is connected by a line to the hydraulic connection panel.

### Claim 9 (depends on 7)

The hydraulic device of claim 7, wherein the support structure is part of the tank region or part of the control region.

### Claim 10 (depends on 9)

The hydraulic device of claim 9, wherein the tank region comprises a tank housing and the control region comprises a cover and the support structure is fastened to the tank housing or the cover.

### Claim 11 (depends on 1)

The hydraulic device of claim 1, wherein the pump is arranged in the tank region and the motor is fastened on an outer wall of the tank region.

### Claim 12 (depends on 1)

The hydraulic device of claim 1, wherein the motor and the pump is fastened on the hydraulic connection panel next to the tank region.

### Claim 13

A hydraulic device for a rail vehicle with a tank region for a hydraulic fluid, a hydraulic connection panel for providing hydraulic fluid paths and for holding hydraulic components, and a control region for controlling the hydraulic components, wherein the tank region and the control region are arranged on opposite sides of the hydraulic connection panel (130), wherein the device comprises: a pump for pumping the hydraulic fluid, which is situated in the tank region, and is fastenable on the tank region, in order to fasten a motor for operating the pump on an outer surface of the tank region.

### Claim 14

A rail vehicle with a hydraulic device that includes a hydraulic device with a tank region for a hydraulic fluid, a motor with a pump for pumping the hydraulic fluid, a hydraulic connection panel for providing hydraulic fluid paths and for holding hydraulic components, and a control region for controlling the hydraulic components,
wherein the tank region and the control region are arranged on opposite sides of the hydraulic connection panel, and
wherein the motor is arranged together with the pump on one side of the hydraulic connection panel.
