Fluid-pressure and analogous brake systems – Multiple systems – Fluid pressure and electric
Reexamination Certificate
2005-05-13
2011-10-18
Burch, Melody (Department: 3657)
Fluid-pressure and analogous brake systems
Multiple systems
Fluid pressure and electric
C303S015000, C303S128000
Reexamination Certificate
active
08038226
ABSTRACT:
The invention relates to an electropneumatic braking system of a rail vehicle, containing a direct-action electropneumatic braking device and an indirect-action compressed-air braking device. The system comprises at least the following components or modules: a) a pressure regulator which produces a pre-control pressure (Cv direct) of the direct brake according to an electric braking pressure request signal of the direct brake, b) a pressure control valve which limits the pre-control pressure (Cv direct) of the direct brake to a pre-determinable maximum pre-control pressure (Cvdirect max) of the direct brake, c) a control valve which generates a pre-control pressure (Cv indirect) of the indirect brake according to a main air guiding pressure (PHL) of the indirect brake, d) a selection device which, from the maximum pre-control pressure of the direct brake (Cv direct max) and the pre-control pressure (Cv indirect) of the indirect brake, transmits a force corresponding to the respectively larger pre-control pressure (Cv direct masor Cv indirect) to a transmission in which the multiplication can be modified by a regulating device according to the respective load state of the rail vehicle. The transmission actuates a relay valve that controls a braking pressure (C) corresponding to the actuation by the transmission.
REFERENCES:
patent: 2147327 (1939-02-01), Williams
patent: 4265489 (1981-05-01), Meinicke
patent: 4453777 (1984-06-01), Newton
patent: 4730879 (1988-03-01), Adachi et al.
patent: RE36036 (1999-01-01), Engle
patent: 6095621 (2000-08-01), Wood et al.
patent: 6669308 (2003-12-01), Aurich et al.
patent: 2004/0119331 (2004-06-01), Long
patent: 28 01 778 (1979-07-01), None
patent: 38 03 639 (1988-08-01), None
patent: 43 09 386 (1994-09-01), None
patent: 926885 (1959-11-01), None
patent: 806503 (1981-02-01), None
Heller Martin
Herden Marc-Oliver
Knörnschild Thomas
Simon Timm
Barnes & Thornburg LLP
Burch Melody
Knorr-Bremse Systeme Fur Schienenfahrzeuge GmbH
LandOfFree
Electropneumatic braking device of a rail vehicle comprising... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electropneumatic braking device of a rail vehicle comprising..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electropneumatic braking device of a rail vehicle comprising... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4264175