Abstract: A pneumatic brake valve unit for a rail vehicle, includes: a main device (20) designed for selective control of a communication path between a brake pipe connector (18) and either an atmospheric exhaust line (19) or an auxiliary reservoir connector (16), such that the pressure at the brake pipe connector (18) is k times the difference between the pressure at a control reservoir connector (14) and the pressure at a main brake pipe connector (12), k being a proportionality factor; and a reset device (23) designed for selective control of a communication path between an air discharge member (54) and the control reservoir connector (14) between an open position when the pressure at the brake pipe connector (18) is atmospheric pressure and a closed position when the pressure at the brake pipe connector (18) is above atmospheric pressure.

Abstract: The invention relates to an assembled undular brake disc having a hub on which two friction rings which are produced from a steel material are arranged parallel to and spaced apart from one another. The assembled undular brake disc can withstand high mechanical loads and permits good internal ventilation. Supporting bolts for absorbing an axially acting pad contact pressure force are arranged between the friction rings.

Abstract: An electro-pneumatic braking system including a pneumatic pressure supply pipe, a generator for generating a vehicle load signal, a weighting system designed to supply a weighted pressure which defines a maximum braking pressure, limited as a function of the load signal, and braking control units connected to the weighting system and having a relay valve connected between the pipe and at least one brake cylinder, to cause the application to this cylinder of a controllable braking pressure, equal to or less than the weighted pressure. The weighting system includes an electro-pneumatic drive assembly, interposed between the pipe and the drive inlet of the relay valve and is connected to the pipe through a pressure limiter, and an electronic weighting control unit which controls this drive assembly as a function of the load signal, so as to modulate in predetermined ways the pressure at the drive inlet of the relay valve.

Abstract: The problem addressed by the invention is that of improving a brake-lining retainer, in particular for wheel brake disks of rail vehicles, including a retaining part and a closure bar, in such a way that a brake-lining retainer including a closure bar that is free of collisions with the wheel contour in all specified operating conditions is provided, wherein in particular the closure bar of the brake-lining retainer can be opened and closed with a standard tool by means of one-handed operation.

Abstract: A rail vehicle braking system includes a service brake (6) having a movable piston (8) delimiting with a body (2) of the system a service brake chamber (13) supplied by a first source, and a parking brake (7) having a blocking device (20) having a position in which it immobilizes the piston in a position, and a movable actuating device (23, 24) delimiting with the body a parking brake chamber (25) supplied by a second source and having a stable position in which it holds the blocking device in its position; the service chamber, when the actuating device is in its stable position, being supplied by the second source of which the pressure is greater than that of the first source in order to apply a greater braking force than the force applied when the piston is in its position.

Abstract: An information display structure includes a stationary part to be secured upright on or against a support; securing means for securing the stationary part; and at least one information display screen connected to the stationary part, extending in front of same, and having a visible front display face.

Abstract: A pneumatic brake valve unit for a rail vehicle, includes: a main device (20) that selectively controls a communication path between a brake pipe connector (18) and either an atmospheric exhaust line (19) or an auxiliary reservoir connector (16), such that the pressure at the brake pipe connector (18) is k times the difference between the pressure at a control reservoir connector (14) and the pressure at a main brake pipe connector (12), k being a proportionality factor; a cut-off valve (21) that controls a communication path between the main brake pipe connector (12) and the control reservoir connector (14); an accelerator device (22) that controls a communication path between the main brake pipe connector (12) and an air discharge member (19); and a driving pilot (39) which is common to both the valve (21) and the accelerator device (22) and which controls their respective communication paths.

Abstract: A braking installation (1) includes a pneumatic brake pipe (BP) which extends along the train, and wherein the pressure is controlled by a braking control apparatus (BCA) in the locomotive (L), an electrical power supply and communication line (EL) which extends along the train, and which is coupled to an electronic control unit (ECU) in the locomotive (L); and in each wagon (W) or in each group of wagons (W), an electronic module (EM) coupled to the electrical line (EL) through power supply and communication interface devices (I, I1), and further connected to an electro-pneumatic control assembly (EPC) designed for driving pneumatic brake valve means (ELV).

Abstract: In order to devise a friction ring body for arrangement on the wheel web of a rail wheel for a rail vehicle for forming a rail wheel brake that can be easily produced, it is proposed that the friction ring body has a friction ring cut out of a flat metal material and a plurality of attachment bodies provided on the friction ring by means of an integrally bonding connection process.

Abstract: The invention relates to a seal including a body having a built-in chamber in which a switching element is arranged, and a lever for actuating the switching element. The lever can tilt relative to the body in two different directions. The range of movement and shape of the lever and/or the arrangement thereof relative to a wall of the chamber are such that the tilting of the lever, in a first of the different directions, does not deform the chamber, or does not deform same enough for the switching element to switch, and such that the tilting of the lever in the second direction deforms the chamber so that the switching element switches.

Abstract: A device (2) forming an interface between an auxiliary power supply system (1) and a power generation module (3) in a rail vehicle, the power generation module (3) being designed to charge a first type of auxiliary power supply system with electrical energy, includes elements of connection to the power generation module (3) and to a second type of auxiliary power supply system (1), the second type of auxiliary power supply system differing from the first type of auxiliary power supply system, and the interface device (2) includes interface elements designed for the operation of the second type of auxiliary power supply system (1) in combination with the power generation module (3).

Abstract: A rail vehicle brake actuator (1) has a brake block holder (4) suspended therefrom so as to be laterally movable during braking. Upper ends of brake block hangers (5) are attached to brackets (2) on the actuator (1) by a joint (15) allowing relative laterally pivotable and rotatable movements of lower ends of the brake block hangers to the brake block holder. The lower ends of the brake block hangers (5) are laterally pivotally attached to a movable brake block holder axle (16) extending through a transverse bore in the brake block holder (4), and spring mechanisms (21) are arranged to act between the respective brake block hangers and the brake block holder.

Abstract: Friction pad (1) for mounting on a brake lining, including a base (11) and at least one first friction material block (12), which is attached to at least one portion of said base (11), the base (11) and the first friction material block (12) defining a first plane at the interface thereof. The base (11) has: a mounting bracket (111) to which the at least first friction material block (12) is attached, at least one first hooking interface (112) distant from the mounting bracket (111) in a direction parallel to the first plane, for directly or indirectly attaching the pad (1) to the brake lining, and at least one first neck (113) extending parallel to the first plane, forming a resilient leaf between the mounting bracket (111) and the first hooking interface (112), to enable the mounting bracket (111) to accommodate translational and rotational movements in every direction.

Abstract: A train consist for freight transportation includes a first or lead locomotive and at least one second or trail, adjacent locomotive directly connected with one another, followed by a plurality of cars or wagons. Each of the locomotives has an Electronically Controlled Pneumatic Brake System (ECPBS), a brake handle installed in the driver's cab providing electric signals to control the ECPBSs upon train operator's commands, and a communication layer used to transmit various signals between the two or more adjacent locomotives of the consist. The electrical signals generated by the brake handle in the lead locomotive are extended to at least the first trail locomotive through the communication layer in order to control the ECPBS in the trail locomotive, providing full train brake redundancy, allowing non-degraded train operation even in case of an unrecoverable failure of the brake control system in the lead locomotive.

Abstract: The braking installation (1) comprises a pneumatic brake pipe (BP) which extends along the train, and wherein the pressure is controlled by a braking control apparatus (BCA) in the locomotive (L), an electrical power supply and communication line (EL) which extends along the train, and which is coupled to an electronic control unit (ECU) in the locomotive (L); and in each wagon (W) or in each group of wagons (W) associated with each other, an electronic module (EM) coupled to the electrical line (EL) through power supply and communication interface devices (I, I1), and further connected to an electro-pneumatic control assembly (EPC) designed for driving pneumatic brake valve means (ELV).

Abstract: The invention relates to an assembled undular brake disc having a hub and having two friction rings which are arranged parallel to and spaced apart from one another, which assembled undular brake disc can withstand high mechanical loads and permits good internal ventilation, wherein an insert element with arms extending radially outward in a stellate manner is arranged between the friction rings.

Abstract: The invention relates to an assembled undular brake disc having a hub on which two friction rings which are produced from a steel material are arranged parallel to and spaced apart from one another. The assembled undular brake disc can withstand high mechanical loads and permits good internal ventilation. Supporting bolts for absorbing an axially acting pad contact pressure force are arranged between the friction rings.

Abstract: A brake unit, preferably for a rail vehicle, including in a housing: a piston, and a push rod in the form of a spindle in an axial slack adjuster. The axial directions of the piston and the push rod are substantially perpendicular to each other, and means are provided for force transmission between these parts. The force transmitting means includes wedge elements at the underside of the piston cooperating with a driver element coaxial with and force-transmittingly connected to the spindle. The driver element is supported with rolling friction by the housing for movements in the axial direction of the spindle, and the spindle is axially guided by the housing at its forward end.

Abstract: The invention relates to a brake disk having a face-end friction ring portion on which a brake disk cam provided with a cam bore is molded. In order to further develop the brake disk in such a manner that adequate safeties with respect to the permissible material values on brake disks for high-energy application cases are provided and material stresses in the region of the brake disk cam of the brake disk, which are caused through temperature differentials within the brake disk as a consequence of high braking energy inputs, are reduced, the brake disk cam includes two arm parts which extend spaced from each other from the face-end friction ring portion in the direction of the cam bore and converge in front of the cam bore.

Abstract: A rail vehicle brake actuator (1) has a brake block holder (4) suspended therefrom so as to be laterally movable during braking. Brake block hangers (5) are attached at their upper ends to brackets (2) on the actuator (1) by means of a joint (15) allowing relative laterally pivotable and rotatable movements and at their lower ends to the brake block holder. The lower ends of the brake block hangers (5), which are rigid, are laterally pivotally attached to a movable brake block holder axle (16) extending through a transverse bore in the brake block holder (4), and spring means (21) are arranged between the respective brake block hangers and the brake block holder.