In my obsession with learning everything I can about my Cummins 6.7L I was very interested in the exhaust brake and not only how it works but also who made it and what I found out from Cummins is that it is in fact a Jacobs Exhaust brake. The following link to the Jacobs site has a lot of good information about their system for those of you as curious about you Cummins 6.7L as I am.
Jacobs Vehicle Systems - Light Duty Exhaust Brake I've also included the PDF from Cummins down below.
Unlike gasoline engines, diesel engines produce no vacuum when you release the throttle to help slow the vehicle. The higher compression of the diesel acts like a spring on the crankshaft, even with no fueling. An exhaust brake restricts the exhaust, making the pistons work harder, slowing the crankshaft and the truck.
Exhaust brakes are ideal for towing applications, such as pulling RV fifth wheels and horse trailers. The Jacobs Exhaust Brake is especially popular with Ram owners who drive in hilly and mountainous regions for the added control on steep grades.
You stepped up to the Cummins Turbo Diesel for its legendary torque and performance. Now upgrade to its ideal heavy-duty partner, the legendary Jake Brake brand, Jacobs Exhaust Brake, for added control and brake savings as well!
HOW IT WORKS
The Jacobs Exhaust BrakeŽ is a supplementary braking system used to help slow your vehicle. This slowing power is achieved by restricting the flow of exhaust gases and increasing back pressure inside the engine. This increased back pressure creates resistance against the pistons in your engine, slowing the crankshaft's rotation and ultimately helping to slow your vehicle.
12-24-2007, 07:59 PM
Cummins Exhaust Brake Manufacturer
Linear Mode
