CONTROL VALVE COMPRISING SWITCHING MEANS FOR SWITCHING BETWEEN CHARACTERISTIC CURVES OF BRAKE PRESSURE

Title:

CONTROL VALVE COMPRISING SWITCHING MEANS FOR SWITCHING BETWEEN CHARACTERISTIC CURVES OF BRAKE PRESSURE

Document Type and Number:

WIPO Patent Application WO/2012/038286

Kind Code:

A3

Abstract:

The invention relates to a control valve for automatic compressed-air brakes for generating a brake cylinder pressure in at least one connected brake cylinder (4) in accordance with a pressure difference between a pressure (L) in a connected main brake pipe (6) of a train and a stored reference pressure (A), at least comprising a main part (1) and a pipe part (2), wherein the main part (1) comprises a control piston (7) which, on the one hand, is subjected to the reference pressure (A) and, on the other hand, to a control pressure (S) and at least one pressure spring (13), and a compensating piston (8) which is subjected to the pressure (C) of the brake cylinder (4) against at least one pressure spring (19, 20), and wherein for switching between different characteristic curves of brake pressure the pressure spring (19) acting upon the compensating piston (9) can be pretensioned via mechanical switching means (12). According to the invention, the switching means (12) comprise a switching shaft (121) which is accommodated and rotatably mounted in the housing (9) of the main part (2), said switching shaft changing the pretension of the pressure spring (19) via at least one control cam (122).

Inventors:

CZYPIONKA SIMON (DE)
HELLER MARTIN (DE)
KRUSCHE MICHAEL (DE)
KRYLOV VLADIMIR (RU)
ROMANOV SERGEY (RU)
SIMON TIMM (DE)

Application Number:

PCT/EP2011/065733

Publication Date:

June 14, 2012

Filing Date:

September 12, 2011

Export Citation:

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Assignee:

KNORR BREMSE SYSTEME (DE)
CZYPIONKA SIMON (DE)
HELLER MARTIN (DE)
KRUSCHE MICHAEL (DE)
KRYLOV VLADIMIR (RU)
ROMANOV SERGEY (RU)
SIMON TIMM (DE)

International Classes:

B60T7/12; B60T8/17; B60T8/18; B60T13/57; B60T13/66; B60T13/74; B60T15/02; B60T15/04; B60T15/18; B60T15/30; B60T17/22

Foreign References:

DE1199309B	1965-08-26
US20020163248A1	2002-11-07
DE102006025329B3	2007-12-06
DE10144300C1	2003-04-03
DE2526622A1	1976-01-22
DE4309386A1	1994-09-29
DE702771C	1941-02-15
US4163587A	1979-08-07
DE1206942B	1965-12-16
GB2193277A	1988-02-03
DE1168946B	1964-04-30

Other References:

ASADTSCHENKO V. R.: "AVTOMATITSCHESKIJE TORMOSA PODVISHNOGO SOSTAWA SHELEZNOGO TRANSPORTA", 2002, Moskau, Russ., pages: 71 - 128, XP002669823

Attorney, Agent or Firm:

SCHOENMANN, Kurt (Moosacher Str. 80, München, DE)

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