Hydraulic device for a rail vehicle

Patent metadata

Field	Value
Publication number	US-11719235-B2
Application number	US-202016789347-A
Country	US
Kind code	B2
Filing date	Feb 12, 2020
Priority date	Feb 12, 2019
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A hydraulic device for a rail vehicle includes a fluid container, a motor with a pump, a control plate, a control region, a ventilation and purging unit for ventilating and purging the fluid container, wherein the ventilation and purging unit has a valve unit integrated into a wall of a housing of the fluid container, and a channel labyrinth connected to the valve unit.

First claim

The invention claimed is:

1. A hydraulic device for a rail vehicle, the hydraulic device comprising:
a fluid container;
a motor with a pump;
a control plate;
a control region; and
a ventilation and purging unit for ventilating and purging the fluid container, wherein the ventilation and purging unit has a valve unit integrated into a wall of a housing of the fluid container, and a channel labyrinth arranged in the fluid container and connected to the valve unit,
wherein the channel labyrinth of the ventilation and purging unit has a first channel labyrinth for ventilation and a second channel labyrinth for purging, wherein the channel labyrinth is integrated in at least one wall of a housing of the fluid container.

2. The hydraulic device of claim 1 , wherein the channel labyrinth is mounted in an interior of the housing of the fluid container, which is surrounded by the housing.

3. The hydraulic device claim 1 , wherein at least one channel of the channel labyrinth opens into an interior of the fluid container surrounded by the housing in the topmost region of the housing in the installation position of the fluid container.

4. The hydraulic device of claim 1 , wherein at least one channel of the channel labyrinth opens into an opening in a housing floor of the housing which is open towards an exterior of the fluid container surrounding the housing.

5. The hydraulic device of claim 1 , wherein at least one channel of the channel labyrinth opens into an opening in a region of a housing wall close to the housing floor of the housing which is open towards an exterior of the fluid container surrounding the housing.

6. The hydraulic device of claim 1 , wherein at least one of the channels of the channel labyrinth is let into a wall reinforcement of a housing wall.

7. The hydraulic device of claim 1 , wherein the valve unit includes at least one check valve.

8. The hydraulic device of claim 1 , wherein the valve unit includes at least one diaphragm valve.

Assignees

• Knorr Bremse Systeme

Inventors

• Stickel Torsten
• Clev Marcus
• Hirth Benjamin
• Elwischger Fabian
• Kullen Nico

Classifications

• F04B53/06 Primary

  Venting · CPC title

• B65D51/1644

  the element being a valve (B65D51/1661 takes precedence) · CPC title

• B67D7/08

  Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred (arrangement of flow- or pressure-control valves B67D7/36; computing, calculating, counting G06; coin-freed apparatus for dispensing fluids G07F13/00; prepayment devices for metering liquids G07F15/00) · CPC title

• B67D7/78

  Arrangements of storage tanks, reservoirs or pipe-lines · CPC title

• F04B23/02

  having reservoirs · CPC title