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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. 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 ...

4. Compression release engine brake - Wikipedia

   en.wikipedia.org/wiki/Compression_release_engine...

   When activated, the exhaust valve opens very briefly near the engine's top dead center, and releases the compressed air in the cylinder so that the air compression energy is not returned to the crankshaft. A compression release engine brake can assist a vehicle to maintain or even reduce speed with minimal use of friction brakes.

5. Jacobs Vehicle Systems - Wikipedia

   en.wikipedia.org/wiki/Jacobs_Vehicle_Systems

   Jacobs Vehicle Systems, Inc. is an American company that engineers, develops and manufacturers commercial vehicle retarding and valve actuation technologies.The company produces light-duty, medium-duty, and heavy-duty engine brakes, recreational vehicle exhaust brakes, aftermarket parts and tune-up kits to heavy-duty diesel engine manufacturers in its domestic market in America, as well as in ...

6. Wabtec - Wikipedia

   en.wikipedia.org/wiki/Wabtec

   The corporate logo is said to represent an axial view of a mechanical brake valve, where different air ports line up between the 'stator' and 'rotor' depending upon the handle position. [16] On June 10, 2023, United Electrical, Radio and Machine Workers of America workers at Wabtec's Erie, Pennsylvania, plant went on strike. Issues included pay ...

7. Freightliner Trucks - Wikipedia

   en.wikipedia.org/wiki/Freightliner_Trucks

   Freightliner Trucks is an American semi truck manufacturer. [1] Founded in 1929 as the truck-manufacturing division of Consolidated Freightways (from which it derives its name), the company was established in 1942 as Freightliner Corporation. [2]

8. Engine braking - Wikipedia

   en.wikipedia.org/wiki/Engine_braking

   A compression release brake (also known as a Jacobs brake or "jake brake"), is the type of brake most commonly confused with real engine braking; it is used mainly in large diesel trucks and works by opening the exhaust valves at the top of the compression stroke, so the large amount of energy stored in that compressed air is not returned to ...

9. Knorr-Bremse - Wikipedia

   en.wikipedia.org/wiki/Knorr-Bremse

   Knorr-Bremse AG headquarters today, Munich. Knorr-Bremse AG is a German manufacturer of braking systems for rail and commercial vehicles that has operated since 1905. Other products in the company's portfolio include intelligent door systems, control components, air conditioning systems for rail vehicles, torsional vibration dampers, and transmission control systems for commercial vehicles.