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  2. Exhaust brake - Wikipedia

    en.wikipedia.org/wiki/Exhaust_brake

    An exhaust brake is a device that essentially creates a major restriction in the exhaust system, and creates substantial exhaust back pressure to retard engine speed and offer some supplemental braking. Exhaust brakes are manufactured by many companies. The brakes vary in design, but essentially operate as described above.

  3. Glossary of automotive terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_automotive_terms

    Also gas pedal. A throttle in the form of a foot-operated pedal, or sometimes a hand-operated lever or paddle, by which the flow of fuel to the engine (and thereby the engine speed) is controlled, with depression of the pedal causing the vehicle to accelerate. admission stroke See induction stroke. aftermarket air brake 1. A type of brake in which the force that actuates the brake mechanism is ...

  4. 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 ...

  5. 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 ...

  6. 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 ...

  7. 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 ...

  8. Automotive acronyms and abbreviations - Wikipedia

    en.wikipedia.org/wiki/Automotive_acronyms_and...

    PB: Power brakes; PC: passenger car; RPM: Revolutions Per Minute; PS: Power steering; R-134a: Refrigerant 134a, tetrafluoroethane (C 2 H 2 F 4) R-152a: Refrigerant 152a, difluoroethane (C 2 H 4 F 2) RCTA: Rear Cross Traffic Alert; RPE: Retail price equivalent; RWD: Rear Wheel Drive; SULEV: Super ultra low emission vehicle; SUV: Sport utility ...

  9. Exhaust system - Wikipedia

    en.wikipedia.org/wiki/Exhaust_system

    Exhaust system of the Opel Corsa B 1.2 petrol Exhaust manifold (chrome plated) on a car engine. An exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system ...