Gm Global Technolgoy Operations, Inc.

Kris Renee Stark

William J Chafin

Michael C Lewman

Hayse William Warrum, Jr

Melissa Ann Hamilton

Stephen L Hardin

A hydraulic solenoid control valve has the capability of operating at high pulse width modulation frequencies due to precision alignment of the armature and freedom from contamination. An alignment tube coupled at one end to one pole piece aligns coaxially with the armature while a non-magnetic bearing coupled to the other end of the alignment tube also aligns coaxially with the armature. Fluid infusion into the armature cavity is prevented by way of the alignment tube which surrounds the armature.

Hydraulic solenoid control valve

A fluid filter for a solenoid which includes a flexible filter element and two plastic tips for installation in an annular groove. The plastic tips are arcuate shaped to fit tightly against the outside diameter of the annular groove when the flexible filter element is wrapped around the annular groove during installation and the tips are bonded together to secure the filter to the groove.

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Noblesville, IN, United States of America

Kris Renee Stark