L'orange Gmbh

Woodward L'orange Gmbh

Steffen Siebert

Ingmar Joachim Berger

Michael Nitsche

Enrico Bärow

Hans-Joachim Koch

Heinrich Nowak

Andre Kindsvater

The invention relates to a fuel injector () for operating with combustible gas. The fuel injector has a plurality of combustible-gas nozzle valve elements (), and the stroke of each of the combustible-gas nozzle valve elements can be controlled by means of a paired hydraulic piston control assembly () of the fuel injector, wherein each piston control assembly is formed by two control chambers () and a piston section () on the combustible-gas nozzle valve element paired with the piston control assembly, said piston section separating the control chambers in such a way that their volumes can be varied, and the fuel injector is designed to control the stroke of the combustible-gas nozzle valve elements in tandem using a 3/2-way valve (), by means of which the hydraulic pressure in one of the two control chambers of the piston control assemblies is controlled.

Activation of multiple gas needles using a 3/2 pilot valve

The invention relates to a combustion gas injector assembly () comprising a combustion gas injector () having groups () of combustion gas nozzle openings distributed around the periphery, each group having at least one combustion gas nozzle opening (), a combustion gas nozzle valve member () of the combustion gas injector (), which member can be controlled in the open position and closed position, is associated with each group () of combustion gas nozzle openings, in order to selectively discharge the combustion gas via the at least one combustion gas nozzle opening (). The combustion gas injector assembly () is configured to control the combustion gas nozzle valve members () successively with a predetermined time offset (T) into the closed position.

Combustion gas injector assembly and method

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Schonaich, Germany

Steffen Siebert