What is exhaust brake?

An exhaust brake is a braking system that operates by restricting the flow of exhaust gases from the engine, which creates back pressure and slows down the vehicle. This type of braking system is commonly used in diesel engines and is often used in conjunction with traditional friction brakes to help control the speed of a vehicle when driving downhill or carrying heavy loads.

Exhaust brakes are typically activated by a switch or button on the dashboard and are designed to help extend the life of the vehicle's traditional brakes by reducing the amount of wear and tear they experience during heavy braking situations. They also help to improve overall vehicle control and stability, especially when driving on steep or winding roads.

Exhaust brakes work by closing a valve in the exhaust system, which creates resistance to the flow of exhaust gases and slows down the engine. This results in increased back pressure in the engine, which helps to slow down the vehicle without relying solely on the traditional friction brakes.

Overall, exhaust brakes are an important component of a vehicle's braking system, particularly for heavy-duty trucks and vehicles that frequently tow or haul heavy loads. They help to increase safety, control, and efficiency while reducing wear and tear on the vehicle's traditional braking system.