Woodward L'orange Gmbh

L'orange Gmbh

Michael Nitsche

Ingmar Joachim Berger

Enrico Bärow

Hans-Joachim Koch

Steffen Siebert

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

Arrangement comprising: a chamber that is formed between a first receptacle and a second receptacle for a rod-shaped element, wherein the receptacles open out to the chamber on opposite end-face sides thereof; a rod-shaped element that is accommodated in the receptacles via a respective section with radial play, in this regard with a receptacle radial play, the rod-shaped element passing through the chamber; and an annular body that is situated in the chamber and through which the rod-shaped element passes with radial play, in this regard an annular body radial play, wherein the annular body radial play is less than the receptacle radial play, wherein the arrangement has a first media side and a second media side that are connected to the chamber via the first receptacle and second receptacle, respectively, wherein the annular body is provided to be pressed into contact against an end-face side of the chamber.

Arrangement

The invention relates to a fuel injector (), comprising: a pre-chamber () within the injector, a high-pressure injector part () for discharging combustible gas, which high-pressure injector part has a nozzle unit () and a reciprocating nozzle valve element (), a nozzle-side end section of which is accommodated in a high-pressure chamber () of the high-pressure injector part (), a pre-chamber assembly (), within the framework of which the high-pressure chamber () of the high-pressure injector part () is separated over a nozzle-side end section, the high-pressure chamber being surrounded by the pre-chamber ().

Fuel injector

The invention relates to a fuel injector arrangement () comprising a number of fluid supply paths (), namely, a first (), a second () and a third fluid supply path (). The fuel injector arrangement () has a first switching device () in the second fluid supply path (). Said first switching device, controlled by the fluid pressure in the third fluid supply path (), opens or blocks the second fluid supply path (). The fuel injector arrangement () has a second switching device () in the first fluid supply path (). Said second switching device, controlled by the fluid pressure downstream of the first switching device () in the second fluid supply path (), opens or blocks the first fluid supply path ().

Fuel injector arrangement

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.

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Schwieberdingen, Germany

Michael Nitsche