A spring-type brake cylinder that includes a compression spring, a pressure chamber, a dividing wall disposed between the compression spring and the pressure chamber, a piston having an inner wall and a bottom, and a nut disposed inside the piston and configured to be held on a release bolt. A support structure is disposed inside the piston and configured to abut against the nut while the release bolt is screwed into the nut. The piston comprises a first retaining structure and a second retaining structure, the first retaining structure configured to hold the support structure in an assembly position and the second retaining structure configured to hold the support structure in a drive position. The support structure is moveable from the assembly position to the drive position by a movement of the nut relative to the piston.

A braking device for a vehicle, in particular a motor vehicle, including an actuatable brake pedal, a piston of a master brake cylinder mechanically coupled to the brake pedal, the piston being supported in the master brake cylinder so as to be axially displaceable in an actuation direction and in a release direction, and including at least one radial seal that acts between the piston and the master brake cylinder. At least one elastically deformable and/or displaceable damping element opposes the displacement of the piston in the release direction.

A brake actuator comprises a housing having an end wall and a pushrod projecting through an opening in the end wall and terminating at a movable plate in the housing. A spring is enclosed in the housing and surrounds the pushrod. At least one unitary resilient member is disposed on the push rod proximate to the end wall and partially extends through the opening for centering the spring around an axis of the pushrod and restricting contamination into the housing. The unitary resilient member comprises a central aperture and an annular flange surrounding the central aperture. At least one section of a collar radially outward from the annular flange has a thickness less than half of the annular flange thickness for constraining movement of the spring and the push rod in a radial direction.

A brake actuator comprises a housing having an end wall and a pushrod projecting through an opening in the end wall and terminating at a movable plate in the housing. A spring is enclosed in the housing and surrounds the pushrod. At least one unitary resilient member is disposed on the push rod proximate to the end wall and partially extends through the opening for centering the spring around an axis of the pushrod and restricting contamination into the housing. The unitary resilient member comprises a central aperture and an annular flange surrounding the central aperture. At least one section of a collar radially outward from the annular flange has a thickness less than half of the annular flange thickness for constraining movement of the spring and the push rod in a radial direction.

A non-detachable body connection with a connection ring which enables the non-detachable connection of the upper body located at the service part of the emergency brake cylinders used in the airbrake systems of heavy weight vehicles and the lower body parts located at the emergency section by using an additional piece during the coupling with adapter plate.

This invention is related to a service brake chamber manufactured with a composite pressure housing and a non-pressure housing, used in the air brake system of heavy vehicles such as trucks, trailers lorries and buses and a connection method of pressure housing and non-pressure housing forms this chamber.

An axle suspension system and a method of manufacture. The axle suspension system may have an axle, an axle wrap, and a weld seam. The axle wrap may receive the axle and may have a first end portion and a second end portion that overlaps the first end portion. A weld seam may couple the first end portion to the second end portion.

A support unit includes a first flange portion, a second flange portion and a guiding portion, wherein the first flange portion has a first engagement geometry for securing the support unit to a chassis, wherein the second flange portion has a second engagement geometry for securing a brake cylinder, wherein the guiding portion is arranged adjacent to the second flange portion and has a guiding geometry for guiding a guiding element along a guiding axis, wherein an expansion wedge unit is provided adjacent to the guiding portion and wherein the expansion wedge unit has a housing which is constructed integrally with the guiding portion.

An integrated brake component mounting bracket for a mechanical spring axle/suspension system of a heavy-duty vehicle includes an axle seat that is disposed on and is rigidly connected to an axle of the vehicle. An air chamber mounting bracket is rigidly connected to the axle seat, and a cam shaft assembly mounting bracket is rigidly connected to the axle seat. A brake air chamber of a brake system is attached to the air chamber mounting bracket, and a cam shaft assembly of the brake system is mounted to the cam shaft assembly mounting bracket. The integrated brake component mounting bracket thus provides mounting of the brake air chamber and the cam shaft assembly on the axle seat, which reduces the number of components that are welded to the axle and enables the use of a thinner-wall axle, desirably reducing the weight and cost associated with the axle/suspension system.

Untreated bosses are formed in advance in two directions on a cylinder mechanism. The bosses on one side are formed as mounts to attach a motor cylinder device to a vehicle body, and the other bosses are formed as ports to connect to the cylinder mechanism. The mount bosses are formed on the outside in the width direction of the vehicle, and the port bosses are formed on the inside in the width direction of the vehicle.