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Compression Release Brakes

Compression Release Brakes

The Jacobs' Compression Release 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.

Compression Release Benefits 

  • Capable of 85% of vehicle braking needs
  • Enables faster downhill control speed
  • Reduces slowing time/distances on flat land, slowing a heavily loaded vehicle from 90 to 70 kph in 30% less time and distance
  • Low cost of ownership
  • Maintain higher average speed
  • Significantly reduces brake wear
     

How A Compression Release Brake Works 

When activated, the Jacobs Engine Brake® opens the exhaust valves near the top of the compression stroke, releasing the highly compressed air through the exhaust system. Little energy is returned to the piston, and as the cycle repeats, the energy of the trucks forward motion is dissipated, causing the truck to slow down.

 

Featured Solutions

MX 11 Engine Brake Model 108

MX 11 | Jacobs and DAF/PACCAR

Product: - The MX 11 Jacobs Engine Brake® delivers as much as 319 kW (427 hp) of braking power at 2100 rpm and 208 kW (278 hp) at 1500 rpm, which is the most fuel efficient engine speed for maximum performance of the vehicle.

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Featured Products

VVA 1

Variable Valve Actuation

Precision Valve Actuation and control systems from Jacobs bring you an 
entire suite of solutions to help achieve performance, fuel economy and 
emissions targets.

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Featured Products

RSD

RSD (Rocker-Stop Device)

For Start-Up and Shutdown Engine Strategies When drivers expressed frustration with anti-idling regulations, Jacobs’ engineers developed a device to improve start-up and shutdown engine technology.

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Featured Products

HPD

High Power Density (HPD)

The Jacobs’ Two-stroke Engine Brake for High Power Density Engines realizes up to 1.5 times the available braking performance of a conventional compression release engine brake.

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Latest News

World's Greatest TV Episode 236

"World's Greatest" TV

The "World's Greatest!..." television show featured Jacobs Vehicle Systems on episodes that aired in November. If you missed the full episode, the segment is now available to watch online.

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Latest News

X15 Engine Brake Performance

Jacobs Announces Optimized Engine Brake System for the 2017 X15

Jacobs Vehicle Systems®, the world’s leading manufacturer of diesel and natural gas engine retarding systems and valve actuation mechanisms, announces the optimized engine brake for the 2017 Cummins X15 engine.

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Latest News

High Power Density Engine Brake

The record-breaking future of engine braking comes to IAA

Jacobs’ HPD (High Power Density) Engine Brake has been demonstrated across Europe this summer showcasing doubled braking power at cruise speeds, 175 kg increased payload and 3,500 Euro lower total cost of ownership.

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