Jake Brake (Engine Brake)
A compression-release braking system that uses the engine to slow the truck.
Definition
A Jake brake (named after Jacobs Vehicle Systems, its inventor) is an engine braking system that opens exhaust valves at the top of the compression stroke, releasing compressed air and creating retarding force. This slows the truck without using the service brakes, reducing brake wear and fade on long downhill grades. Many residential areas prohibit Jake brake use due to noise. Proper use of engine braking is a critical skill for mountain driving.
FAQ
What does Jake Brake (Engine Brake) mean?
A compression-release braking system that uses the engine to slow the truck.
Why is Jake Brake (Engine Brake) important for truck drivers?
Understanding jake brake (engine brake) is essential for truck drivers because it directly impacts your daily operations, pay, or compliance. A Jake brake (named after Jacobs Vehicle Systems, its inventor) is an engine braking system that opens exhaust valves at the top of the compression stroke, releasing compressed air and creating retarding force. This slows the truck without using the service brakes, reducing brake wear and fade on long downhill grades.