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  2. 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 ...

  3. Compression release engine brake - Wikipedia

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

    The typical compression brake consists of a hydraulic system using engine oil which transfers the motion of the fuel injector rocker arm to the engine's exhaust valve(s). 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 ...

  4. Compression release - Wikipedia

    en.wikipedia.org/wiki/Compression_release

    Since two-stroke engines normally lack the compression braking effect of four-stroke engines when the throttle is shut off, the addition of a compression release brake on two-strokes essentially mimicked the four-stroke compression braking effect. Using throttle-off engine compression for at least some braking on both two-stroke and four-stroke ...

  5. WABCO Vehicle Control Systems - Wikipedia

    en.wikipedia.org/wiki/WABCO_Vehicle_Control_Systems

    WABCO Holdings, Inc. was a U.S.-based provider of electronic braking, stability, suspension and transmission automation systems for heavy-duty commercial vehicles. [2] In 2007, the Vehicle Control Systems was spun off as WABCO Holdings Inc., an American provider of electronic braking, stability, suspension and transmission automation systems for heavy-duty commercial vehicles.

  6. Retarder (mechanical engineering) - Wikipedia

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

    Exhaust brakes are simpler in operation than an engine brake.Essentially, the exhaust pipe of the vehicle is restricted by a valve.This raises the pressure in the exhaust system, forcing the engine to work harder on the exhaust stroke of its cylinders, so again the engine is acting as an air compressor, with the power required to compress the air being withheld from the exhaust pipe, retarding ...

  7. Polaris Inc. - Wikipedia

    en.wikipedia.org/wiki/Polaris_Inc.

    Robin (a subsidiary of Subaru Corporation) previously developed and supplied all-terrain vehicle (ATV) and snowmobile engines for Polaris Inc. Starting in 1995 with the Polaris Magnum 425 4-stroke ATV and in 1997, with the introduction of the "twin 700" snowmobile engine Polaris started the development and production in house of the "Liberty ...

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