| 摘要 |
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.
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