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2. Relay valve - Wikipedia

   en.wikipedia.org/wiki/Relay_valve

   A relay valve is an air-operated valve typically used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination. Relay valves are necessary in heavy trucks in order to speed-up rear-brake application and release, since air takes longer to travel to the rear of the vehicle ...

3. S-cam - Wikipedia

   en.wikipedia.org/wiki/S-cam

   The S-cam foundation brake is being used in over 85% of vehicles in the U.S. that run with air brakes. [1] S-cam's are only used with drum brakes because the cam pushes on the brakes which rubs against the rotating drum, and thus slowing the vehicle. [2] Drum brakes are favored on bigger vehicles because they allow more surface area in brake ...

4. Brake - Wikipedia

   en.wikipedia.org/wiki/Brake

   Foundation components are the brake-assembly components at the wheels of a vehicle, named for forming the basis of the rest of the brake system. These mechanical parts contained around the wheels are controlled by the air brake system. The three types of foundation brake systems are “S” cam brakes, disc brakes and wedge brakes. [3]

5. Air brake (road vehicle) - Wikipedia

   en.wikipedia.org/wiki/Air_brake_(road_vehicle)

   Truck air-actuated disc brake. An air brake or, more formally, a compressed-air-brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to both release the parking/emergency brakes in order to move the vehicle, and also to apply pressure to the brake pads or brake shoes to slow and stop the vehicle.

6. Railway air brake - Wikipedia

   en.wikipedia.org/wiki/Railway_air_brake

   The triple valve is so named because it performs three functions: It allows air into an air tank ready to be used, it applies the brakes, and it releases them. In so doing, it supports certain other actions (i.e. it 'holds' or maintains the application and it permits the exhaust of brake cylinder pressure and the recharging of the reservoir ...

7. Hydraulic brake - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_brake

   Although more cars had the brake system installed and the company advertised heavily, it disappeared without achieving the success it deserved. Knox Motors Co. used hydraulic brakes in 1915, in a tractor unit. [1] Malcolm Loughead (who later changed the spelling of his name to Lockheed) invented hydraulic brakes, which he patented in 1917.

8. Brake pad - Wikipedia

   en.wikipedia.org/wiki/Brake_pad

   There are different systems for the cataloguing of brake pads. The most frequently used system in Europe is the WVA numbering system. [16] The cataloguing system used in North America, and recognized around the world, is the standardized part numbering system for brakes and clutch facings issued by the Friction Materials Standards Institute (FMSI).

9. Sensotronic Brake Control - Wikipedia

   en.wikipedia.org/wiki/Sensotronic_Brake_Control

   Sensotronic Brake Control (SBC) is an electro-hydraulic brake system developed by Daimler and Bosch. In this system, the wheel brake cylinders of a vehicle are operated through a servomechanism, offering precise and responsive braking. The SBC system was first introduced on the R230 SL-class, which was released in Europe in October 2001. [1]