Abstract: The present invention is a process and system for controlling the wagon body of a vehicle which can be used alone or in combination with a steel spring system. The control system has comparatively small geometrical dimensions and requires relatively little energy and includes a pressure accumulator connected in parallel to delivery pump 8 of the hydraulic pressure medium. The two devices working together against the pressure of the hydropneumatic pressure accumulator of the body height system. Thus, the pressure accumulator can be charged during the travel of the vehicle so that the pump does not have to be designed according to the peak load in the case of a fast load change.

Abstract: The electrically controllable pressure medium brake comprises an electric pressure means (EP) converter (1) to convert an electrical brake request signal into a brake pressure. By way of an emergency brake valve (1), this brake pressure (in the normal case) and a vehicle load-dependent emergency brake pressure limited by a limiting valve (12) (in an emergency), is fed to the brake cylinder (14). For vehicle load-dependent limitation of the emergency brake pressure, a second EP converter (1a) generates from a vehicle load-dependent, electrical signal a vehicle load-dependent pressure medium pressure, which is stored in a pressure medium reservoir (18) and is fed to the limiting valve (12) in order to control it. The second EP converter (1a) is closed in the currentless state, during a power failure, whereby the vehicle load-dependent pressure medium pressure is preserved and the limiting valve (12) can thus continue to limit the emergency brake pressure as a function of the vehicle load.

Abstract: The railborne bogie vehicle with electrohydraulic brakes and hydropneumatic leveling suspension has in each of its bogies a hydraulic pressure supply unit (9) from which pressure control valves (15, 16) parallel to each other provide pressure to both the hydraulic brakes (19) and the hydropneumatic suspension (20) of that bogie. The back pressure lines (26 and 32) of the electrohydraulic brakes (19) or of the hydropneumatic suspension (20) lead to a hydraulic tank or sump (10) associated with the pressure supply unit (9).

Abstract: The electrically controllable brake, preferably pressure actuated brake for vehicles has a control device (13) which, controlled by a brake demand signal, monitors the release of an appropriate braking power or a corresponding braking pressure. For the vehicle load dependent limitation of the braking force or the braking pressure, a vehicle load signal, present as electrical signal value, is led to a modem (38 to 45), which converts the electrical signal value into a mechanical signal value (prestress of the control spring 36). The mechanical signal value directly controls a limiting device (pressure limiting valve 11) which serves for the vehicle load dependent limitation of the braking power or the braking pressure to be delivered.

Abstract: Hydraulic vehicle brake comprising a hydraulic accumulator (1), a brake valve adjustment device (4) supplied thereby, and a brake pressure line section (7) to the brake cylinders attached to the latter via an emergency brake valve (6). In the emergency braking position of the emergency brake valve, this connection is broken, and the brake pressure line section is directly connected to the hydraulic accumulator via a nozzle (10) which is bridged by a cylinder (13) in which a piston is sealingly displaceable. A spring (17) biases the piston in the displacement direction to the accumulator side end connection (11) of the cylinder. During emergency braking, the piston (14) first forces an amount of hydraulic medium sufficient for brake application out of the brake cylinder side chamber (16) of the cylinder (13). This is followed by a damped increase in brake pressure through additional supply of hydraulic medium from the hydraulic accumulator (1) through the nozzle (10) into the brake cylinders.

Abstract: A brake control device has a selective release accelerator which responds only to a normal release subsequent to an increase of brake line pressure initiated by the operator's brake valve. A first piston has one side subjected to air line pressure and the other side subjected to pressure in an auxiliary reservoir. The first piston controls an inlet valve to connect the emergency reservoir to the brake line. A second piston has one side subjected to brake line pressure and its other side to pressure in the auxiliary reservoir and monitors the first piston. The side of the first piston subjected to auxiliary reservoir pressure is connected through a throttled connection to the auxiliary reservoir when the brake line pressure is smaller than or equal to the auxiliary reservoir pressure. This throttled connection is interrupted when the brake line pressure reaches a predetermined value higher than the auxiliary reservoir pressure.

Abstract: A brake accelerator has a control chamber connected through a throttle orifice to a brake line. The brake system includes a control valve in which is an emergency brake piston one side of which is subjected to brake line pressure and the other side of which is subjected to pressure in the control chamber. The emergency brake piston, as a function of a pressure drop in the brake line, opens a brake line outlet valve so that air flows from the brake line through an inlet valve. The inlet valve is held by a control piston in its open position at the start of a pressure drop in the brake line and the air is flowed into a chamber to form a control pressure.

Abstract: A hand brake for manually actuating brake cylinders, particularly for an air braking system on railway vehicles, has a piston tube extending from the piston of a brake cylinder and an actuating rod connected to the brake linkage positioned within the piston tube. A device for adjusting the actuating rod with respect to the piston tube device comprises a thrust ring acting upon a portion of the piston tube. A brake ring is positioned around the piston tube and is rotatable by a manually actuated drive. Wedge gear displacing means are provided to displace axially the brake ring upon rotation of the brake ring. An intermediate element is connected to the piston tube and is displaced by the brake ring during axial displacement of the brake ring. The piston tube has a cam portion acting upon the thrust ring so as to displace the actuating rod axially upon axial displacement of the piston tube.

Abstract: A brake cylinder for vehicles employes a spring plate as a transmission linkage between a piston and a piston rod coaxial with the piston. The spring plate is supported against a portion bearing against the piston rod. The inner end of the spring plate is acted upon by the piston.