Siemens Aktiengesellschaft

Continental Automotive Gmbh

Continental Automotive Systems Corporation

Klaus Husslein

Christoph Klesse

Thomas Grossner

Michael Joseph Hornby

Martin Werner

Thomas Riedel

Eckbert Zander

Wolfram Klemp

Thomas Komischke

Harry Schüle

Christopher Heukenroth

Thomas Gerlach

Adolf Einberger

An injector has an inlet and an outlet and an armature tube having passage structure and having a distal end spaced from the outlet. The passage structure communicates with the inlet. A movable, magnetic armature is coupled to the armature tube. An electromagnetic coil is associated with a stator and with the armature. A first spring is constructed and arranged, when the coil is not activated, to bias the armature tube so that the distal end engages in a sealing manner with a first seat to limit leakage of the gaseous fuel from the outlet. A second valve is movable in a valve body. A second spring is constructed and arranged, when the coil is not activated, to bias the second valve so that a seating surface thereof engages a second seat to close the outlet.

Gas direct injector with reduced leakage

An injection system for an internal combustion engine has at least one injector () which is coupled hydraulically to a fuel accumulator (), a prefeed pump () for feeding fuel from a fuel tank (), a high pressure pump () which is arranged downstream behind the prefeed pump () for feeding the fuel into the fuel accumulator (), and a line () which branches off downstream of the prefeed pump () and upstream of the high pressure pump () and is coupled hydraulically to an exhaust section injector (), by way of which fuel can be injected into an exhaust section of the internal combustion engine.

Injection system for an internal combustion engine, and internal combustion engine

An injection system for an internal combustion engine comprises a valve arrangement ( ), connected to an inlet ( ) to a high pressure pump ( ), which regulates the flow of fuel for lubricating and cooling the high pressure pump ( ) and bleeds the injection system. The valve arrangement ) comprises at least one displaceable actuator and a first and second throttle device ( ). The actuator ( ) is regulated according to a pressure of the fuel flow between a feed supply pump ( ) and the high pressure pump ( ), such that a first connection to, the high pressure pump ( ) is opened, by means of the first throttle device ( ), or the feed ( ) to the high pressure pump ( ) is interrupted, or a second connection to the high pressure pump ( ) is opened, by means of the second throttle device ( ). The invention further relates to a method of bleeding and/or regulating said injection system.

Injection system for an internal combustion engine and method for regulating and/or bleeding of said system

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Wuppertal, Germany

Klaus Husslein