The new prechamber improves efficiency

Prechamber upgrade for Wärtsilä 34SG engines

The pre-chamber of the Wärtsilä 34SG engine is optimized by using advanced three-dimensional, computerized fluid dynamics.

The pre-chamber is the ignition source for the main fuel charge, and is thus one of the essential components of a lean-burn spark-ignited gas engine. The advantages of the new pre-chamber include more stable combustion, which results in a more stable load and improved overall efficiency.

    • More stabile combustion
    • Improved fuel efficiency (up to 1%)
    • Reduced NOX emissions
    • Urea consumption in SCR installations reduced by up to 25%

    The new pre-chamber is available for the following cylinder configurations:

    • 1% prechamber for the Wärtsilä 12V34SG and Wärtsilä 18V34SG
    • 0.9% pre-chamber for the Wärtsilä 9L34SG, Wärtsilä 16V34SG and Wärtsilä 20V34SG
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