Robert Boschgmbh

Avl List Gmbh

Nooijen, Paul Johan Willem Maria

Jaroslav Hlousek

Christian Meisl

Heribert Kammerstetter

Martin Bernhaupt

Christian Graspeuntner

Franz Guggenbichler

Johannes Schnedt

Gerhard Rehbichler

Markus Kathan

In a method for injecting fuel into the combustion chamber of an internal combustion engine, the fuel is fed by at least one prefeed pump from a tank to at least one high-pressure pump and the high-pressure fuel fed by the high-pressure pump is supplied to the injector, wherein the injector has an injection nozzle with an axially movable nozzle needle protruding into a control chamber which can be fed with fuel under pressure and whose pressure is controlled by a control valve which opens or closes at least one inflow or outflow duct for fuel. Between the prefeed pump and the high-pressure pump, a partial volume of the fuel is branched off as a flushing volume and supplied to a flushing channel of the injector, wherein the flushing volume is directly supplied to the control valve such that the flushing volume flows at least partially through the control valve and preferably mixes with the fuel from the inflow or outflow duct, respectively.

Method and device for injecting fuel into the combustion chamber of an internal combustion engine

In a method and device for preheating an internal combustion engine injector () including at least one valve () to be activated by an electromagnet (), in which the coil of the electromagnet () is energized before the engine is started, the coil of the electromagnet () is periodically powered with a preheating voltage (), and the current characteristic () within the coil is monitored and subjected to an evaluation to detect local current minima () and/or maxima () caused by armature reactions.

Method of preheating injectors of internal combustion engines

In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including at least one high-pressure accumulator (), an injector (), at least one high-pressure line () connecting the high-pressure accumulator () with the injector (), and a resonator line () arranged in parallel with the high-pressure line () between the injector () and the high-pressure accumulator () and including a resonator throttle () on the side of the high-pressure accumulator, the resonator line () is formed by an insert piece () pressed into the bore of the high-pressure line and is, in particular, formed within the same.

Device for injecting fuel into the combustion chamber of an internal combustion engine

Within an injection nozzle for the injection of fuels into the combustion chamber of an internal combustion machine the injection nozzle () comprising an axially displaceable valve needle (), which plunges into a control chamber () chargeable with pressurized fuel whose pressure is controllable by a control valve () opening or closing the at lest one inlet or outlet channel for fuel, channels are arranged in the region of the valve needle (), which channels are connected with lubricant- or motor-oil lines respectively and can be passed through by lubricant- or motor-oil respectively. Also in the region of the control valve () and/or a solenoid actuating the control valve, channels are arranged which are connected with lubricant- or motor-oil lines respectively and can be passed through by lubricant- or motor-oil respectively.

Injection nozzle for internal combustion machines

Growing community of inventors

Golling, Austria

Jaroslav Hlousek