Title:
PNEUMATIC CONTROL VALVE FOR A BRAKE CYLINDER OF A RAIL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/038277
Kind Code:
A3
Abstract:
The invention relates to a pneumatic control valve as an actuator for a regulated application of compressed air to at least one brake cylinder (2) of a rail vehicle, which can be connected via a brake line (1), in accordance with a pressure difference between a control pressure (S) and a reference pressure (A), which are opposite to each other and applied upon a respective, associated active surface of an integrated control piston (3) in order to actuate, in cooperation with at least one pressure spring (5), a double-seat valve (6) for adjusting the brake cylinder pressure (C) against the force of at least one C-piston (7) which is also integrated and subjected to the brake cylinder pressure (C) and which exerts an additional restoring force for the double-seat valve (6) in order to adjust the brake pressure level. According to the invention, a mechanically adjustable transfer means is arranged in the actuation force flow between control piston (3) and C-piston (7) as a changing element for varying the actuation force.
Inventors:
CZYPIONKA SIMON (DE)
HELLER MARTIN (DE)
KRYLOV VLADIMIR (RU)
SIMON TIMM (DE)
OBERBUCHNER THOMAS (DE)
KRUSCHE MICHAEL (DE)
HELLER MARTIN (DE)
KRYLOV VLADIMIR (RU)
SIMON TIMM (DE)
OBERBUCHNER THOMAS (DE)
KRUSCHE MICHAEL (DE)
Application Number:
PCT/EP2011/065711
Publication Date:
May 31, 2012
Filing Date:
September 12, 2011
Export Citation:
Assignee:
KNORR BREMSE SYSTEME (DE)
CZYPIONKA SIMON (DE)
HELLER MARTIN (DE)
KRYLOV VLADIMIR (RU)
SIMON TIMM (DE)
OBERBUCHNER THOMAS (DE)
KRUSCHE MICHAEL (DE)
CZYPIONKA SIMON (DE)
HELLER MARTIN (DE)
KRYLOV VLADIMIR (RU)
SIMON TIMM (DE)
OBERBUCHNER THOMAS (DE)
KRUSCHE MICHAEL (DE)
International Classes:
B60T7/12; B60T8/18; B60T8/32; B60T13/26; B60T13/36; B60T13/46; B60T13/57; B60T15/02; B60T15/18; B60T15/30; B60T15/32; B60T15/34; B60T15/42; B60T15/46; B60T17/22
Domestic Patent References:
| WO2005110830A1 | 2005-11-24 |
Foreign References:
| GB1186322A | 1970-04-02 | |||
| DE102006025329B3 | 2007-12-06 | |||
| DE702771C | 1941-02-15 | |||
| DE102008032710A1 | 2010-01-14 | |||
| FR2276967A1 | 1976-01-30 | |||
| DE6609868U | 1972-12-07 | |||
| US3730597A | 1973-05-01 | |||
| DE10144300C1 | 2003-04-03 | |||
| US4453777A | 1984-06-12 | |||
| DE2801778A1 | 1979-07-19 |
Attorney, Agent or Firm:
SCHOENMANN, Kurt (Moosacher Str. 80, München, DE)
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