Woodward, Inc.

Gregory J Brodsack

Timothy John Farrow

Roger M Kifer

Steven A DeHerrera

Richard J Way

Ronald L Witt

Michael W Hamernik

Christopher Dan Harrison

An enhanced safety coil that prevents crack formation and propagation to the coil windings from external sources and prevents exposure to fuel is provided. The enhanced safety coil may be used in a solenoid operated gas admission valve (SOGAV), and includes a plastic encapsulation body having at least one body de-stress feature, a coil wound on the plastic encapsulation body, a sleeve forming an outermost side protective wall configured to accommodate the plastic encapsulation body and coil therewithin, and potting provided between the plastic encapsulation body and the sleeve to seal the coil therein. The body de-stress feature is configured to reduce at least one of a formation or a propagation of a crack through the potting to the coil. The plastic encapsulation body forms retention latches configured to mate with a stator.

Enhanced safety coil for SOGAV

A feedthrough device includes first and second opposing outer end faces. The feedthrough device includes an opening, between the first and second opposing outer end faces, that allows fluid communication between an interior and an exterior of the feedthrough device. A conductor extends through the feedthrough device from the first end face, through the interior, to the second end face.

Detecting leaks in a feedthrough device

A valve assembly includes a valve housing located between a fluid inlet region maintained at a first pressure and a fluid outlet region maintained at a second pressure. A movable metering plate is located within valve housing. A fixed metering plate interacts with the movable metering plate to meter fluid flow through the valve housing. An armature is coupled to the movable metering plate and is configured to move the movable metering plate from a closed position toward an open position. The fluid admission system further includes a balancing region to balance pressure related forces acting on the movable portions of the valve, including the metering plate. A balance passageway is in communication with the balancing region and the fluid outlet region to maintain the balancing region at the second pressure of the fluid outlet region when the movable metering plate is in the closed position.

Fluid admission system for providing a pressure-balanced valve

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Loveland, CO, United States of America

Gregory J Brodsack