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Decompression Engine Brake

Eaton's Decompression Engine Braking technology for medium- and heavy-duty commercial vehicle applications delivers high braking power and reduces the Total Cost of Ownership (TCO) for truck owners. 

Eaton decompression engine brake

Core features

  • Fast engagement ensures full braking power within one engine cycle
  • Brake lift is realized on a single exhaust valve, resulting in a lower load on the system and higher braking power
  • System is modular and controls the cylinder banks independently, allowing activation of only partial braking power if necessary, enabling more effective braking system usage

Benefits: Brake Power

  • Full range of engine braking power solutions including bleeder brake, 4-stroke and 2-stroke braking
  • Reduces or eliminates need for driveline retarder
  • Reduces wear and replacement interval of primary friction brakes
  • Enables engine down-speeding and/or downsizing
  • Improves freight efficiency

Benefits: Flexible Design

  • Compact packaging
  • Can be combined with Hydraulic Lash Adjuster (HLA)
  • Used for exhaust gas thermal management and automatic
    gear up-shifting
  • Part of broader commercial engine valve action solutions: 
    • Early Exhaust Valve Opening (EEVO)
    • Late Intake Valve closing (LIVC)
    • Cylinder Deactivation (CDA)   

Working Principle of Decompression Engine Brake