Control device for compressed-air brakes

Details Control device for compressed-air brakes Control device for compressed-air brakes

2005-06-28

2005-06-28

Lavinder, Jack (Department: 3683)

Fluid-pressure and analogous brake systems

Automatic

C303S027000, C303S040000

Reexamination Certificate

active

06910744

ABSTRACT:
The invention relates to a control device for compressed-air brakes having a control valve, comprising a housing, a piston rod, a piston, a second piston, a double-seat valve, having a control element, having a supply air reservoir, having a control chamber, having a main air pipe; one side of the piston being connected in a compressed-air carrying manner with the main air pipe; the other side of the piston being connected in a compressed-air carrying manner with the control chamber; one side of the second piston having a compressed-air connection to a brake cylinder or a brake cylinder pilot chamber; the double-seat valve being connected between a compressed-air connection of the supply air reservoir and the compressed-air connection to the brake cylinder or to the brake cylinder pilot chamber.The invention is characterized by the following features:A compressed-air connection from the main air pipe to the double-seat valve is connected parallel to the compressed-air connection from the supply air reservoir;a valve comprising a piston rod and a piston is connected into the parallel compressed-air connection;on one side, the piston has a compressed-air connection device for a control pressure;on the other side, the piston has a device for generating a counterforce, particularly a pressure spring;a control element is connected into the connection point between the main air pipe, the control chamber, the compressed-air connection device for the control pressure, the brake cylinder or the brake cylinder pilot space and the environment.

REFERENCES:
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Knorr-Bremse Systems for Rail Vehicles Manual, “Distributor Valve KEd”, B-EC00.25-en, Rev. 00.

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