Hoerber Kompressortechnik Services Gmbh

Hans F Mathews

Peter Steinr&uuml;ck

Dustin A Malicke

Jerry Racaniello

A valve for bringing gaseous fuel into the combustion chamber of gas engines is provided with a solenoid valve ( ) controlling fuel delivery ( ) and an adjoining poppet valve ( ), which closes biased by the force of a spring, and which opens in the direction of the combustion chamber through the pressure of in-flowing gas. For the purpose of keeping the poppet valve ( ) open, independent from the pressure conditions at its valve head ( ), the valve's stem ( ) is connected to a step piston ( ) whose topside and bottom side are biased by the fuel pressure existing between the solenoid valve ( ) and the valve head ( ) and whose step area ( ) is in communication with the fuel delivery line ( ), on one side, and with the space ( ) between the step piston ( ) and the valve head ( ), on the other side, whereby the passageways ( ) are opened and closed by means of a respective switching member ( ) corresponding to the movement of the step piston ( ). The poppet valve ( ) is thereby kept in a closed position, assisted by pressure, after the end of the gaseous fuel injection.

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Plantation, FL, United States of America

Hans F Mathews