N12Turbo.com lanyards are now available! Click here to visit the shop

Compression braking, Diesels.

Anything and everything thats not N12 related.
Post Reply
User avatar
Damo
Posts: 1482
Joined: Tue Aug 08, 2006 11:46 pm
Location: Canberra

Compression braking, Diesels.

Post by Damo »

For all the diesel brains out there, I know that commercial trucks use comp braking, and I was given a very loose explain about it 15years back, but how does it actualy work?



Damo
Do humanity a favor, use your brain and fight the forces of WOO WOO!


http://www.youtube.com/watch?v=G1mrbxhWU5Y
User avatar
tassuperkart
Administrator
Administrator
Posts: 5578
Joined: Wed Jul 05, 2006 8:39 pm
Location: Southern Tasmania
Contact:

Post by tassuperkart »

Exhaust brake is just a strangler valve in the exhaust pipe.
Turns the engine into a compressor.

A "Jake" engine brake usually hydraulically "fires" an extra exhaust valve at TDC on compression stroke.
So engine looses power by compressing, and then looses more by having to drag the piston back down without the help of compressed air in there.

L8r
E
Forcd4 wrote:Oh fuk no dude it's you a again, the oracle.
Post Reply