Gm Global Technolgoy Operations, Inc.

David R Schumann

Roger Michael Brisbane

Daniel L Varble

Paul B Rissi

Edwin A Rivera

Marty M Hoch

Leman F Reus

Steven L Good

A fuel system for use on an internal combustion engine has a fuel metering body which defines a fuel plenum therein. The plenum has an inlet for pressurized fuel, a pressure regulator, and a fuel outlet. Disposed within the fuel plenum, in fluid communication with one another, the inlet and the outlet, are a plurality of fuel injectors. The fuel injectors have outlets which extend through the fuel meter body and deliver fuel to the intake ports of the associated engine through flexible fuel lines terminated by pressure pulse activated poppet nozzles providing a significant degree of application flexibility. The fuel meter body mounts within the intake manifold such that fuel and electrical connections extend out of the manifold for simplified source attachment.

Fuel injection

An electromagnetic fuel injector for use in an internal combustion engine has a center pole piece with an axially extending bore which slidingly accepts an adjusting pin therein. The adjusting pin has a first end portion for engagement with the armature return spring of the injector. Axial translation of the adjusting pin, relative to the center pole piece will vary the compression on the spring, the seating load on the armature valve and, as such, the dynamic flow characteristic of the injector. The adjusting pin further has means for engaging the center pole piece to rotate the piece which is threadingly engaged within the injector housing. Rotation of the threaded piece relative to the housing varies the armature/valve travel and, as such, the static flow characteristic of the injector.

Electromagnetic fuel injector

A single fuel metering injector directs fuel through a plurality of nozzles to a plurality of charge delivery injectors.

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Rochester, NY, United States of America

David R Schumann