Hoerbiger Kompressortechnik Holding Gmbh

Martin Könczöl

Peter Steinrück

Gerhard Kogler

Christoph Brandl

The invention relates to a gas metering valve () for a dual fuel engine (), which has a displaceable closing body () which, in a position of resting against a valve seat (), closes the gas metering valve () and, in a position of being lifted off from the valve seat (), opens the gas metering valve (). The gas metering valve () is actuatable in a gas operating mode, in which the gas metering valve () meters combustion gas via a gas channel () into an intake manifold () of the dual fuel engine (), and in a liquid fuel operating mode, in which the gas metering valve () remains sealingly closed against the pressure prevalent in the intake manifold (). The valve seat () is movably situated along a valve seat guide (), the valve seat (), owing to the combustion gas pressure in the gas channel (), in the gas operating mode being pressed away from the closing body () against a stop () in the gas metering valve () and is kept in its operating position, and the valve seat () in the liquid fuel operating mode being sealingly pressed by the pressure from the intake manifold () against the closing body ().

Gas metering valve for a dual fuel engine

A combustion chamber injection nozzle () having a plurality of injection channels () for a main fuel gas, a pre-combustion chamber, and a plurality of torch channels () for hot combustion gas connected to the pre-combustion chamber (), the injection channels () and the torch channels () communicating with peripheral openings arranged next to one another so as to alternate in a circumferential direction.

Fuel gas feed and ignition apparatus for a gas engine

A fuel gas feed and ignition apparatus for a gas engine () with a combustion chamber includes a number of injection channels (), a main fuel gas feed line () for main fuel gas in which a main fuel gas valve () is arranged, and a number of torch channels () for hot combustion gas connected to a pre-combustion chamber (), wherein an ignition fuel supply line () leads to the pre-combustion chamber () and a pre-combustion chamber valve () is arranged in the ignition fuel supply line (). Control of both the time and the duration and thus also the quantity of the injection of main fuel gas, as well as of ignition fuel for the pre-combustion chamber completely independently of one another and in a precise and, above all, rapid manner is achieved in that both the main fuel gas valve () and the pre-combustion chamber valve () are embodied as an electrically-actuated, electronically-controlled valve.

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Markt Piesting, Austria

Martin Könczöl