Jenbacher Type 4 B-Version Upgrade

Upgrading your Jenbacher Type 4A gas engine to the latest B-version technology for gas mixture distribution, combustion and knock control can offer greater uptime, reliability, and performance.

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Jenbacher type 4 engine

What Can a Type 4 B-Version Upgrade Do for You?

  • Increase uptime. Provides up to 1.5 percent more operating hours annually, based on current fleet analytics. 
  • Lower lifecycle costs.
    -Improved piston ring and blow-by system designs can lower oil consumption by up to 50 percent, reduce combustion changer deposit formation, and decrease oil carryover to the turbocharger and intercooler.
    -Enhanced control algorithms, better mixture distribution to the cylinders, and improved piston and cylinder head designs provide increased resistance to combustion chamber deposits.
    -Advanced blow-by and air filter concepts provide extended service intervals.
  • Enhance engine performance. More stable engine performance can be achieved over the life of the unit under varying fuel gas and ambient conditions.
  • Additional power feed-in. When an output increase is feasible, as up to five percent boost in nominal power output can be obtained.

How We Get You There

The B-version upgrade packages, available in light and full versions, include a variety of enhancements as well as optional features.

Light Package. This reduced bundle of measures can be applied during any scheduled service:

  • Enhanced piston concept with modified piston shape and piston rings*
  • Cylinder head with enhanced mixture intake flow
  • Improved knock control logic
  • New blow-by system
  • OEM documentation update

Full Package. The complete bundle of measures, ideally applied during a minor or major overhaul:

  • Enhanced piston concept with modified piston shape and piston rings*
  • Enhanced gas mixture manifold
  • Cylinder head with enhanced mixture intake flow suitable for new suction manifold
  • Improved knock control logic
  • New blow-by system
  • OEM documentation update
  • Optional:
    -Power boost: up to five percent output increase. Requires ignition system upgrade, turbocharger check, and engine settings update
    -Advanced air filter concept

*This enhancement – introduced in the second quarter of 2010 for all Type 4 engines – completely replaced the previous piston version. The new piston concept may have been applied to some engines during previous minor/major overhauls.