engine brake

Throttle-off deceleration system

An engine brake is a mechanism that slows a vehicle by using the engine's compression rather than traditional friction brakes.

In diesel trucks, the engine brake creates resistance by releasing compressed air from the cylinders, producing a distinctive loud stuttering sound: The trucker downshifted and hit the engine brake on the steep grade.

Signs reading "No Engine Brake" or "Jake Brake Prohibited" appear in residential areas because of the noise.

Also called a compression brake or by the trademark Jake brake.

Related

truck · big rig · diesel · deceleration · grade · mountain · mountain pass · downhill run · highway · runaway truck · loud · roar · transmission · gears · descent · steep · steep grade · semi

Categories
Opposites
braking mechanism type

engine brakehydraulic brake

Fluid-based vehicle deceleration system

friction brake · disc brake · service brake · drum brake · air brake

acceleration vs. deceleration

engine brakethrottle

Power flow controller

accelerator · gas pedal · engine power · acceleration · turbo boost

Family

engine, brake, engines, engined, engineering, engineer, engineers, engineered, brakes

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Used worldwide · Timeless · Concrete · Rated G