What is the Principle of Exhaust Braking?

1 Answers
MilesFitz
07/28/25 10:53pm
Exhaust braking works by converting the engine, originally a power output device, into an air compressor that consumes power. Here are the details: 1. Introduction: Exhaust braking is widely used in large diesel vehicles. A regulating valve is installed on the engine exhaust pipe. Closing this valve increases the pressure during the exhaust stroke, utilizing the generated negative pressure to obtain braking force. 2. Usage Notes: (1) Engine braking cannot replace service braking for emergency stops, nor can it be used for parking brakes. (2) Engine braking can be used simultaneously with service braking. (3) The throttle pedal should be at the zero position.
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