Various methods and systems are provided for a braking system. In one example, a braking arrangement comprising a dead lever comprising a protrusion offset toward a live lever and a slack adjuster.

The present invention discloses an overhead rail and trolley apparatus and method. The apparatus provides an overhead rail having one or more tracks. A wheeled trolley having a wheel or wheels travels upon the tracks. A stop unit on the rail is positioned to selectively halt the trolley. There is a cutout section on the rail and an insert that is attached to the rail at the cutout. The trolley wheels engage the upper surface of the insert when the trolley is halted by the stop unit. A plating on the insert increases the hardness of the insert upper surface. The insert helps prevent and/or at least lessens wear of apparatus when the trolley is halted by the stop unit.

The present invention discloses an overhead rail and trolley apparatus and method. The apparatus provides an overhead rail having one or more tracks. A wheeled trolley having a wheel or wheels travels upon the tracks. A stop unit on the rail is positioned to selectively halt the trolley. There is a cutout section on the rail and an insert that is attached to the rail at the cutout. The trolley wheels engage the upper surface of the insert when the trolley is halted by the stop unit. A plating on the insert increases the hardness of the insert upper surface. The insert helps prevent and/or at least lessens wear of apparatus when the trolley is halted by the stop unit.

Example embodiments relate to implementing self-contained power sources for railcars. A railcar may include an air turbine that comprises a generator. The air turbine converts mechanical energy received from air to electrical energy by way of the generator. In some implementations, the air turbine is selectably coupled to the air brake system of the railcar and can convert mechanical energy received from pressurized air of the air brake system. The railcar can further include a pneumatic valve and a controller that can cause the pneumatic valve to open when the air pressure of the air brake system is at or above a predetermined level. Opening the pneumatic valve provides pressurized air to the air turbine from the air brake system and/or an exhaust pipe. The air turbine is a Wells turbine or a ram air turbine in some examples.

Example embodiments relate to implementing self-contained power sources for railcars. A railcar may include an air turbine that comprises a generator. The air turbine converts mechanical energy received from air to electrical energy by way of the generator. In some implementations, the air turbine is selectably coupled to the air brake system of the railcar and can convert mechanical energy received from pressurized air of the air brake system. The railcar can further include a pneumatic valve and a controller that can cause the pneumatic valve to open when the air pressure of the air brake system is at or above a predetermined level. Opening the pneumatic valve provides pressurized air to the air turbine from the air brake system and/or an exhaust pipe. The air turbine is a Wells turbine or a ram air turbine in some examples.

A brake control system and method for a train having a lead locomotive or control car, at least one trailing locomotive or control car and, optionally, at least one railroad car. The lead locomotive or control car generates data representing an independent brake demand and data representing an automatic brake demand and transmits the data representing an independent brake demand and the data representing an automatic brake demand to the at least one trailing locomotive or control car. The at least one trailing locomotive or control car receives data representing an independent brake demand and data representing an automatic brake demand and controls a brake cylinder pressure of the at least one trailing locomotive or control car based on the data representing an independent brake demand and the data representing an automatic brake demand.

Provided are a brake system, a brake device, and a method of controlling brakes for railroad cars in which control can be multiplexed with a simple configuration. In a brake system 1 for railroad cars includes brake control devices 11, 12, 13 provided in railroad cars 101, 102 103 respectively that form a unit 104. Each brake control device 10 (11, 12, 13) is capable of outputting information of the corresponding car (101, 102, 103) to the other brake control devices 10 through a transmission device 20. The brake control device 10 can calculate a total necessary braking force value BRA required for braking all of the cars 101, 102 103 using the information output from the other brake control devices 10 to the transmission device 20.

The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation members are fixedly mounted on the mounting bracket. The present application can automatically recognize the orbit change of a train, the follow-up mechanism moves with a wheel by means of its stored elastic force and the unlocking members, and can self-locked at the target gauge position, thus realizing the change in position.

The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation members are fixedly mounted on the mounting bracket. The present application can automatically recognize the orbit change of a train, the follow-up mechanism moves with a wheel by means of its stored elastic force and the unlocking members, and can self-locked at the target gauge position, thus realizing the change in position.

A high-speed transportation with a transporter enveloped by low pressure in running tube includes a running tube, a running rail, a carrier structure, a control system, a braking system and a driving system. The running tube is an extended tube structure enveloped by a tube wall. A plurality of one-way airflow windows are provided on the tube wall, and the direction of airflow passing through the plurality of one-way airflow windows are controllable. The driving system includes a blocking-type running drive structure, a running blocking structure and a blocking-type running pressure-reducing structure which are provided in the running tube and run along the running tube. The carrier structure is a compartment structure. A connecting structure includes a flexible telescopic connecting structure and a rigid non-telescopic connecting structure.