A service portion of a rail control valve having a charging check valve assembly that includes a body defining a piston passageway, an inshot valve passageway, and a service accelerated release valve passageway. The body includes a mounting flange having a mounting face having ECP porting. The service portion also includes an inshot valve received by the inshot valve passageway and a service accelerated release valve received by the service accelerated release valve passageway. The service portion further includes a cover plate mounted to at least a portion of the mounting face. A clearance is present between the cover plate and the charging check valve assembly.

An automatic parking brake for a truck mounted brake cylinder. The automatic parking brake includes rod that is interconnected to a piston of the brake cylinder and can prevent the piston from returning to the brakes releases position. The rod is controlled by locking nut that will rotate if the rod moves axially through the locking nut and a locking sleeve that is moveable between a locked position, where the locking sleeve engages the locking nut and prevents from the nut from rotating, and a released position, where the locking sleeve is disengages from the locking nut and the locking nut is free to rotate. A spring provides a force biasing the locking nut into the locked position, and brake pipe pressure biases the locking sleeve into the released position.

An automatic parking brake for a truck mounted brake cylinder. The automatic parking brake includes rod that is interconnected to a piston of the brake cylinder and can prevent the piston from returning to the brakes releases position. The rod is controlled by locking nut that will rotate if the rod moves axially through the locking nut and a locking sleeve that is moveable between a locked position, where the locking sleeve engages the locking nut and prevents from the nut from rotating, and a released position, where the locking sleeve is disengages from the locking nut and the locking nut is free to rotate. A spring provides a force biasing the locking nut into the locked position, and brake pipe pressure biases the locking sleeve into the released position.

An automatic parking brake for a truck mounted brake cylinder. The automatic parking brake includes rod that is interconnected to a piston of the brake cylinder and can prevent the piston from returning to the brakes releases position. The rod is controlled by locking nut that will rotate if the rod moves axially through the locking nut and a locking sleeve that is moveable between a locked position, where the locking sleeve engages the locking nut and prevents from the nut from rotating, and a released position, where the locking sleeve is disengages from the locking nut and the locking nut is free to rotate. A spring provides a force biasing the locking nut into the locked position, and brake pipe pressure biases the locking sleeve into the released position.

An automatic parking brake for a truck mounted brake cylinder. The automatic parking brake includes rod that is interconnected to a piston of the brake cylinder and can prevent the piston from returning to the brakes releases position. The rod is controlled by locking nut that will rotate if the rod moves axially through the locking nut and a locking sleeve that is moveable between a locked position, where the locking sleeve engages the locking nut and prevents from the nut from rotating, and a released position, where the locking sleeve is disengages from the locking nut and the locking nut is free to rotate. A spring provides a force biasing the locking nut into the locked position, and brake pipe pressure biases the locking sleeve into the released position.

An arrangement for a brake lining, method for actuating the brake lining and the brake lining itself are a partially lined disc brake of a rail vehicle that has a lining support and multiple group elements arranged on the lining support. Each of the group elements consists of a support plate and multiple lining elements arranged on the support plate, and lining elements with at least two friction surfaces of differing sizes are arranged on each support plate. The lining elements are arranged such that their total surface area at least approximates a ring sector, and at least two different first and second group elements are arranged on the lining support.

A method for the operation of a brake control system for a rail vehicle that includes a brake system that has at least partially one friction brake, includes determining at least one characteristic curve using at least one virtual and/or at least one actual reference braking journey of the rail vehicle, which characteristic curve sets at least one control variable for maintaining at least one performance variable in relation to one another, recording the characteristic curve in the brake control system; and using the characteristic curve functioning as a basis for controlling the brake system of the rail vehicle. Furthermore, a brake control system, a brake system, and a rail vehicle are provided.

A method for the operation of a brake control system for a rail vehicle that includes a brake system that has at least partially one friction brake, includes determining at least one characteristic curve using at least one virtual and/or at least one actual reference braking journey of the rail vehicle, which characteristic curve sets at least one control variable for maintaining at least one performance variable in relation to one another, recording the characteristic curve in the brake control system; and using the characteristic curve functioning as a basis for controlling the brake system of the rail vehicle. Furthermore, a brake control system, a brake system, and a rail vehicle are provided.

A brake cylinder maintaining system includes a main valve comprising a first diaphragm, a second diaphragm, and a valve member, with the first diaphragm having a reference pressure on one side of the first diaphragm and a brake cylinder pressure on an opposite side of the first diaphragm. The second diaphragm having a brake cylinder pressure on one side of the second diaphragm with the first diaphragm configured to move between a first position and a second position based on a differential between the reference pressure and the brake cylinder pressure. The valve member is configured to place a brake cylinder in fluid communication with a brake pipe when the first and second diaphragm are each in the second position and configured to isolate a brake cylinder from a brake pipe when the first diaphragm or the second diaphragm are in the first position.

A brake cylinder maintaining system includes a main valve comprising a first diaphragm, a second diaphragm, and a valve member, with the first diaphragm having a reference pressure on one side of the first diaphragm and a brake cylinder pressure on an opposite side of the first diaphragm. The second diaphragm having a brake cylinder pressure on one side of the second diaphragm with the first diaphragm configured to move between a first position and a second position based on a differential between the reference pressure and the brake cylinder pressure. The valve member is configured to place a brake cylinder in fluid communication with a brake pipe when the first and second diaphragm are each in the second position and configured to isolate a brake cylinder from a brake pipe when the first diaphragm or the second diaphragm are in the first position.