A computer controlled locomotive brake (CCB) configured for setting and releasing the retainer valves of the railcars of a train. The CCB may initially recharge the brake pipe to a pressure slightly less than the retainer valve release pressure. The CCB may then continue charging to this level until the brake pipe flow, measured at the CCB on the controlling locomotive and the brake pipe pressure on the last car, as measured by an end of train device, indicate that the pressure in the braking system reservoirs are substantively equal to the brake pipe pressure. Once the reservoirs are substantively charged, the CCB may complete the brake release and recharge by recharging the brake pipe pressure to its final charge so that all retainer valves are released and the train has sufficient braking system recharge to safely control movement of the train.

A braking system includes a brake pipe, a pressure sensor and a pressure valve, each operatively associated with the brake pipe. The pressure valve is directed to reduce a pressure in the brake pipe in response to data from the pressure sensor, and a secondary pressure sensor is operatively associated with the brake pipe, wherein a pressure in the brake pipe is reduced in to data from the secondary pressure sensor.

An electropneumatic rail brake system configured to provide emergency braking including an emergency magnet valve which controls air flow into an emergency regulator valve, which valve has an emergency back-up chamber. The emergency regulator provides an output pressure nominally equal to the variable load pressure and no lower than the tare back-up. The magnet valve is closed when energized and when de-energized, pressure is allowed into the emergency back-up chamber, Regulation of the brake cylinder pressure continues during an emergency application such that the brake cylinder pressure applied during an emergency stop does not drop below a predetermined level. In the event of power-loss during an emergency brake stop, the nominal emergency brake pressure is applied to the brake cylinders.

A valve for applying an emergency brake of a rail vehicle includes a valve housing, an actuation member to be activated by a user, an actuation rod connecting the actuation member with a valve head, wherein the valve head is adapted to abut on a valve seat, a guidance for guiding the actuation rod being provided within the valve housing, and a first spring adapted to push the valve head against the valve seat, wherein the actuation rod includes a first groove and a second groove, and wherein a first following member is provided between the actuation rod and the guidance, being adapted to stably rest in the first groove or the second groove.

A pneumatic brake for a rail vehicle, wherein friction linings are pressed against friction partners during a braking process via pneumatic pressure from a brake air container that is fed from a compressed air supply, where the filling and the outflow of compressed air from the brake air container occurs via a flow limiting device.

A set and release retainer valve assembly of an air brake system engages and releases an air brake while retaining a designated pressure within a brake cylinder. The pressure is retained within the brake cylinder to generate a higher brake cylinder pressure on a subsequent brake application and/or prevent movement of the vehicle system after release of the air brake system. The air brake is subsequently re-engaged to re-set the retaining valve assembly and exhaust the designated air pressure out of the brake cylinder, where the air brake of the vehicle system is released to permit the movement of the vehicle system after re-setting the retaining valve assembly.

A pipe bracket for a brake distributor valve for a vehicle includes a pipe bracket body including a main portion mounting face to receive the main portion of the distributor valve, a main-line portion mounting face to receive the main-line portion of the distributor valve, and an attachment face configured to secure the pipe bracket to a vehicle. The main portion mounting face defines a signal port in fluid communication with the signal passageway of the main portion. The main-line portion mounting face defines a signal port in fluid communication with the signal passageway of the main-line portion.

A brake control valve arrangement includes an electro-pneumatic brake control valve block having a hold valve and a vent valve, a main regulator valve and an emergency and a tare pressure regulator. The valve block has an inlet for a brake supply pressure and an outlet for a brake cylinder, wherein an inlet and a vent pneumatic opening is provided for the hold valve and vent valve. The arrangement also includes a configuration module in pneumatic connection with the brake supply pressure and providing a pneumatic path to the inlet, and a pneumatic path to the vent valve from the brake cylinder, the arrangement also including at least one choke configured to control air flow in pneumatic paths to the inlet opening and vent opening.

A manufacturing method of a railway braking device is described comprising a main body arranged to receive at least partially: at least two different pneumatic or electro-pneumatic elements; and channels connecting the at least two pneumatic or electro-pneumatic elements;

the manufacturing method comprising the step of: constructing said main body of the railway braking device through additive manufacturing of a monolithic block provided with at least two seats for said at least two pneumatic or electro-pneumatic elements and said channels; a railway braking device is further described constructed by means of a manufacturing method of a railway braking device.

A circuit has a fluid line matrix and brake components connected to the fluid line matrix. Changes in the brake designs or brake functions can be carried out easily in that at least one interface is provided for connecting a distributor block. The interface is designed such that a configuration of the fluid line matrix can be formed by connecting or exchanging the distributor block. There is also described a distributor block which is suitable for forming a configuration of the fluid line matrix of the circuit by connecting to the at least one interface of the circuit.