Compression Release Engine Brake

Jacobs’ Compression Release Engine Brake takes the load off the foundation brakes, turning your power-producing diesel engine into a power-absorbing air compressor using a compression-release mechanism.

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JVS's Compression Release Brake Technology

Performance benefits of Jacobs’ Compression Release Brake

  • Capable of 85% of the vehicle’s braking needs
  • Increases productivity by maintaining higher average downhill speed
  • Reduces slowing time/distances on flat land, slowing a heavily loaded vehicle from 90 to 70 kph in 30% less time and distance than with wheel brakes alone
  • Lower total cost of ownership
  • Significantly reduces brake wear
  • Eliminates “brake fade” due to high temperatures on the friction brakes; keeping them cool for maximum effectiveness when needed.
     
Compression release summary graph

How Jacobs’ Compression Release Brake works

When activated, when the engine is not fueling, the Jacobs’ Compression Release Brake opens the exhaust valves near the top of the compression stroke, releasing the highly compressed air through the exhaust system. The vehicle energy is used to push the engine to compress the air, but little energy is returned to the piston, and as the cycle repeats, the energy of the truck’s forward motion is dissipated, causing the truck to slow down.

Engine-specific solutions for leading OEMs

C10
C12
C15
C16
3406
X15 / ISX15 / ISX
ISX12
ISX12N / ISX12 G
ISM / M11
L9 / ISL9 / ISL
ISZ
MX-11
MX-13
OM470
DD13 / OM471
DD15 / OM472
DD16 / OM473
DD13
DD15
DD16
S60
S50
dCi 11
DV11
Ecotorq 13
6M70
MDIPT
10L
12L
E13
A05
A09
Powertec (L)
H
A26
DT466
DT530 / 570
N9
N10
N11
N13
6UZ1
6NX1
Series 53
Series 71 / 92
MX-11
MX-13
10L / 12L
WP 9H / 10H
K12

Learn more

Download this information package for more details and technical information about Jacobs’ Compression Release Brake.