Wartsila Finland Oy

Wiliam Brace

Pekka Hautala

Markus Niemi

A fuel injector valve () of a piston engine, which comprises a fuel chamber () for the fuel to be injected, a valve needle () for guiding the fuel injection from the fuel chamber () into the cylinder () of the engine, a spring () for pressing the valve needle () towards the closed position, and a piezoelectric actuator () for guiding the valve needle (). Additionally, the injector valve () comprises a drawbar (), which is loosely coupled to the valve needle (), a second drawbar (), which is attached to the piezoelectric actuator () and loosely coupled to the drawbar (), and that the injector valve () comprises a second spring () fitted in connection with the drawbar () for pressing the valve needle () towards the closed position and a third spring () fitted in connection with the second drawbar () for pressing the valve needle () towards the closed position.

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Otalampi, Finland

Wiliam Brace