Woodward L'orange Gmbh

Mtu Friedrichshafen Gmbh

L'orange Gmbh

Ingmar Joachim Berger

Michael Willmann

Michael Nitsche

Markus Kalenborn

Horst Ressel

Enrico Bärow

Hans-Joachim Koch

Steffen Siebert

Dagmar Neu

Tobias Männle

Heinrich Nowak

Patrick Spengler

Timo Stache

Dirk Pfuderer

Hartmut Schneider

Kajetan Plenk

Andre Kindsvater

Martin Maierhofer

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

A dual-fuel fuel injection system for an internal combustion engine has a liquid fuel injection branch and a gas fuel injection branch, in which a gas injector assembly that is controllable via a control fluid is situated. The liquid fuel forms the control fluid of the gas injector assembly.

Dual-fuel fuel injection system for an internal combustion engine

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.

Combustion gas injector assembly and method

A fuel injector for operation with combustible gas, having a gas nozzle assembly having at least one gas nozzle opening, and at least one gas nozzle needle associated with the gas nozzle assembly and accommodated in an axial holder so that the stroke of the gas nozzle needle can be controlled. Each gas nozzle opening leads out of the holder having a radial direction component at the nozzle end. The fuel injector has, in the holder, a needle seat upstream of the particular nozzle opening, which needle seat is provided for selectively blocking a combustible-gas flow path to the associated gas nozzle opening in interaction with the gas nozzle needle. The gas nozzle openings are distributed over part of the circumference in the circumferential direction of the gas nozzle needle. The holder, adjoining the needle seat and extending away therefrom axially in the upstream direction, is asymmetric with respect to an axial center axis through the gas nozzle needle. The asymmetry results from a cross-section expansion of the holder on a side of the holder that lies radially opposite the gas nozzle opening, such that a greater mass flow rate of combustible gas can be conducted in the holder by the crosssection expansion than on the gas nozzle opening side opposite thereto. The holder is also shaped to apply a flow direction oriented toward the radially opposite gas nozzle opening, already upstream of the needle seat and via the cross-section expansion, to a combustible-gas flow guided to the needle seat by the cross-section expansion.

Fuel injector for operation with combustible gas

An air scoop-cyclone filter assembly having an air scoop for guiding untreated air, which including an inlet opening, a deflection area for deflecting untreated air and an outlet opening, and having a cyclone filter for cleaning untreated air, which is connected downstream of the air scoop in the flow direction and is connected in an airtight manner to the air scoop A perforated plate is arranged in the cyclone filter as a filter inlet opening. The perforated plate has a first passage area having a high number of holes, a second passage area having a low number of holes at the geodetically deepest point, and a baffle plate. The baffle plate distributes the untreated air flow through the first and second passage area and, with the outer wall of the air scoop, forms a collecting chamber that stabilizes the flow.

Air scoop-cyclone filter assembly

Intake manifold element () having a tubular section () through which a first fluid (A) can flow in a proposed flow direction (A') via a flow channel () from an inlet () to an outlet () of the same, said tubular section being provided for arrangement on a compressor inlet () of a turbocharger, characterized in that the flow channel () has a nozzle-shaped design, wherein its cross-section which the fluid can flow through is tapered in the flow direction (A&#x2032;), wherein the tubular section () forms a chamber () adjacent to the nozzle-shaped flow channel () which serves as flow path from an inlet () to an outlet () for the aspiration of a second fluid (B), the pressure level of said chamber on the inlet () being dependent on the pressure level of the first fluid (A) on the outlet () of the flow channel () via communicating outlets () of the chamber () and the flow channel ().

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Stuttgart, Germany

Ingmar Joachim Berger