Abstract: A brake cylinder includes a pressure medium actuated brake piston delimiting a brake chamber and connected to a brake piston rod. The brake piston, together with the piston rod, swivels into positions tilted from a center axis of the brake cylinder during an actuation stroke. The brake piston is rigid and has a guide surface in the shape of a spherical surface of an imaginary sphere on its radially outer peripheral surface. The guide surface is guided along a radially inner cylinder wall of the brake cylinder with the center of the sphere lying on the center axis of the brake cylinder. The brake piston further has at least one elastic sealing element radially displaceable in a radially outer annular groove of the brake piston and delimiting an annular space together with a groove base of the annular groove on its side facing away from the radially inner cylinder wall.

Abstract: A combined service brake and spring brake cylinder for vehicle brake systems, includes a service brake piston and a spring brake piston. A sealing assembly is located in a central bore of a partition and seals off the interior of the service brake cylinder from the interior of the spring brake cylinder. The radial outer peripheral surface of the spring brake piston has an additional sealing assembly for sealing off a spring chamber. At least one of the sealing assemblies contains a guide ring that guides the spring brake piston rod in the bore of the partition, or the spring brake piston in the spring brake cylinder. The guide ring consists of a more rigid material than that of at least one sealing element. The sealing element consists of an elastomer that is connected to the guide ring by original forming methods such as injection molding or transfer molding.

Abstract: A fastening device for externally fastening cables or lines to housings, especially to the housing of brake cylinders, includes a fastening pin that can be locked in a breather of the housing. A connecting channel is configured in the fastening pin via which channel, in the locked state, the interior of the housing communicates with the atmosphere.

Abstract: A brake cylinder includes a pressure medium actuated brake piston delimiting a brake chamber and connected to a brake piston rod. The brake piston, together with the piston rod, swivels into positions tilted from a center axis of the brake cylinder during an actuation stroke. The brake piston is rigid and has a guide surface in the shape of a spherical surface of an imaginary sphere on its radially outer peripheral surface. The guide surface is guided along a radially inner cylinder wall of the brake cylinder with the center of the sphere lying on the center axis of the brake cylinder. The brake piston further has at least one elastic sealing element radially displaceable in a radially outer annular groove of the brake piston and delimiting an annular space together with a groove base of the annular groove on its side facing away from the radially inner cylinder wall.

Abstract: A combined service brake and spring brake cylinder for vehicle brake systems, includes a service brake piston and a spring brake piston. A sealing assembly is located in a central bore of a partition and seals off the interior of the service brake cylinder from the interior of the spring brake cylinder. The radial outer peripheral surface of the spring brake piston has an additional sealing assembly for sealing off a spring chamber. At least one of the sealing assemblies contains a guide ring that guides the spring brake piston rod in the bore of the partition, or the spring brake piston in the spring brake cylinder. The guide ring consists of a more rigid material than that of at least one sealing element. The sealing element consists of an elastomer that is connected to the guide ring by original forming methods such as injection molding or transfer molding.

Abstract: A method is provided for producing metal housings composed of at least two housing parts, in particular for units mounted in commercial vehicles. A corrosion prevention layer composed of zinc or a zinc-containing alloy is applied onto an outwardly facing surface of at least one housing part with a subsequent passivation, and a positive overlapping of an edge of one housing part by the edge of another housing part is effected by way of a relative movement of the housing parts being reciprocally aligned beforehand with regard to a die stamp, which plastically deforms the edge of housing part and/or the edge of the other housing part.

Abstract: For the assembly of a spring-type brake cylinder, a rear cylinder is provided with a preloaded spring, with a rear piston and with an intermediate flange. Then, a front cylinder, in which a front piston with an actuating rod for a brake element of the braking system is movably arranged, is fixed to the rear cylinder, so that the rear cylinder and the front cylinder are in contact with one another by means of a sliding rod passing through the intermediate flange. As a result, the front piston is displaceable by the rear piston.

Abstract: A combined service brake and spring brake cylinder includes a service brake piston arranged in a service brake cylinder and actuated by a pressure medium, and a spring brake piston arranged in a spring brake cylinder and actuated by an accumulator spring. The spring brake piston is connected to a spring brake piston rod which extends through an opening of a partition separating the service brake cylinder and the spring brake cylinder. The partition is provided with a connection for a pressure medium, including a borehole for the supply and/or discharge of the pressure medium into or out of the service brake chamber or spring brake chamber. The connection for a pressure medium contains a separate coupling part held in the borehole and used for connection to a partner coupling part connected to a tube, a line, or a duct for a pressure medium such that the pressure medium is conducted through the elements.

Abstract: A fastening device for externally fastening cables or lines to housings, especially to the housing of brake cylinders, includes a fastening pin that can be locked in a breather of the housing. A connecting channel is configured in the fastening pin via which channel, in the locked state, the interior of the housing communicates with the atmosphere.

Abstract: A combined service brake and spring brake cylinder for the braking system of a motor vehicle, in particular for utility vehicles, includes service and spring brake pistons guided inside a casing which is common for the two brake cylinders. The spring brake piston is loaded by at least one storage spring and has an external diameter greater than that of the service brake piston. The spring brake piston is in the form of an annular piston, and at least a part of the rod thereof is constructed in the form of a piston tube, which surrounds the service brake piston and forms an external radial running and sealing surface therefor.

Abstract: A method is provided for producing metal housings composed of at least two housing parts, in particular for units mounted in commercial vehicles. A corrosion prevention layer composed of zinc or a zinc-containing alloy is applied onto an outwardly facing surface of at least one housing part with a subsequent passivation, and a positive overlapping of an edge of one housing part by the edge of another housing part is effected by way of a relative movement of the housing parts being reciprocally aligned beforehand with regard to a die stamp, which plastically deforms the edge of housing part and/or the edge of the other housing part.

Abstract: A combined service brake and spring brake cylinder for the braking system of a motor vehicle, in particular for utility vehicles, includes service and spring brake pistons guided inside a casing which is common for the two brake cylinders. The spring brake piston is loaded by at least one storage spring and has an external diameter greater than that of the service brake piston. The spring brake piston is in the form of an annular piston, and at least a part of the rod thereof is constructed in the form of a piston tube, which surrounds the service brake piston and forms an external radial running and sealing surface therefor.

Abstract: For the assembly of a spring-type brake cylinder, a rear cylinder is provided with a preloaded spring, with a rear piston and with an intermediate flange. Then, a front cylinder, in which a front piston with an actuating rod for a brake element of the braking system is movably arranged, is fixed to the rear cylinder, so that the rear cylinder and the front cylinder are in contact with one another by means of a sliding rod passing through the intermediate flange. As a result, the front piston is displaceable by the rear piston.