What does exhaust brake mean?
1 Answers
Exhaust brake is a type of vehicle auxiliary braking method, commonly known as exhaust brake. Below are the principles and functions of exhaust brake: Principles of exhaust brake: It utilizes the vehicle's own kinetic energy to compress air during the intake stroke. When the piston reaches the top dead center, an additional mechanism opens the exhaust valve to expel the compressed high-temperature and high-pressure gas from the cylinder, preventing the compressed air from performing work on the piston during the next power stroke. Functions of exhaust brake: When driving on icy, snowy, or slippery muddy roads, using the exhaust brake can reduce side slipping. When descending long slopes, using the exhaust brake can decrease the frequency of service braking, lower the temperature rise of the brake drum, and improve braking reliability. Additionally, using the exhaust brake can reduce or even cut off the fuel supply to the engine, thereby saving fuel.