What is the difference between Jake Brake and Exhaust Brake? - ProProfs Discuss
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What is the difference between Jake Brake and Exhaust Brake?

Asked by B. Wright, Last updated: Aug 03, 2020

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C. Lopez

Driving down to Knowledge town

C. Lopez, Chauffer, Chauffer, Watertown

Answered Aug 22, 2019

With a Jake brake, the engine is slowed down (manipulation of airflow through the engine by the opening and closing of valves lowers RPM). When downshifting, the change in gearing acts against the engine's forces. The decrease in speed from Jake braking occurs within the engine, and the reduction in speed from downshifting comes from an outside mechanical force.

With a Jake brake, the engine is slowed down (manipulation of airflow through the engine by the
The Jake brake makes the engine into an air compressor which uses energy rather than produces it. It can increase brake efficiency when used in conjunction with service brakes, or it can eliminate the need for brakes.

 

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