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2. 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.

3. Retarder (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Retarder_(mechanical...

   Retarder (mechanical engineering) Torque converter, opened, interior similar to a retarder. A retarder is a device used to augment or replace some of the functions of primary friction -based braking systems, usually on heavy vehicles. Retarders serve to slow vehicles, or maintain a steady speed while traveling down a hill, and help prevent the ...

4. Relay valve - Wikipedia

   en.wikipedia.org/wiki/Relay_valve

   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 ...

5. Automated manual transmission - Wikipedia

   en.wikipedia.org/wiki/Automated_manual_transmission

   Automated manual transmissions can be semi-automatic or fully-automatic in operation. Several different systems to automate the clutch and/or shifting have been used over the years, but they will generally use one of the following methods of actuation for the clutch and/or shifting: hydraulic or electro-hydraulic actuation, [12] electro-mechanical, [13] pneumatic, [6] [14] [15] electromagnetic ...

6. Hydraulic brake - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_brake

   A hydraulic brakeis an arrangement of brakingmechanism which uses brake fluid, typically containing glycol ethersor diethylene glycol, to transfer pressure from the controlling mechanism to the braking mechanism. History. [edit] During 1904, Frederick George Heath, Redditch, England devised and fitted a hydraulic (water/glycerine) brake system ...

7. Automatic transmission fluid - Wikipedia

   en.wikipedia.org/wiki/Automatic_transmission_fluid

   Automatic transmission fluid. Automatic transmission fluid (ATF)is a hydraulic fluid that is essential for the proper functioning of vehicles equipped with automatic transmissions. Usually, it is coloured red or green to differentiate it from motor oil and other fluids in the vehicle.

8. Manual transmission - Wikipedia

   en.wikipedia.org/wiki/Manual_transmission

   A manual transmission (MT), also known as manual gearbox, standard transmission (in Canada, the United Kingdom and the United States), or stick shift (in the United States), is a multi-speed motor vehicle transmission system where gear changes require the driver to manually select the gears by operating a gear stick and clutch (which is usually ...

9. Master cylinder - Wikipedia

   en.wikipedia.org/wiki/Master_cylinder

   Master cylinder. In automotive engineering, the master cylinder is a control device that converts force (commonly from a driver's foot) into hydraulic pressure. [1] This device controls slave cylinders located at the other end of the hydraulic brake system and/or the hydraulic clutch system. As piston (s) move along the bore of the master ...