Kelsey-hayes Company

David E Collins

Paolo Rea

Douglas Lewin

Herbert L Linkner, Jr

Wendell D Tackett

Timothy E Hughes

Patrick H Hool

Dion Parker

William D Doyle

Tim Ferguson

William Doyle

An electromagnetic valve () for use in controlling fluid flow between first and second passageways (P, P) in a hydraulic valve block (), includes a valve body (). The valve body () defines a central axis (A), has a central opening (A) therethrough, has a lower end () adapted to be inserted into a bore () of the valve block (), and is provided with a lower cylindrical opening (). An armature () is axially movable within the valve body () and is biased by a spring in one axial direction (A). A closing element () is carried by a lower end () of the armature (). An electromagnetic coil () coaxially surrounds the armature () and is operable to effect axial movement of the armature () in an axial direction opposite the one direction (B). A valve seat member () is carried by the lower end () of the valve body () and has an orifice () providing fluid flow between the first and second valve block passageways (P, P). The valve seat member () defines a valve seat () surrounding the orifice () and cooperates with the closing element () for selectively closing the orifice (). The valve seat member () includes a cylindrical tubular portion () frictionally retained in the lower cylindrical opening () of the valve body (). The lower cylindrical opening () of the valve body () is provided with a stop surface () at the upper end of thereof, and an upper part () of the cylindrical portion () of the valve seat member () includes a flange () engageable with the stop surface () for limiting downward movement of the valve seat member () relative to the valve body ().

Electromagnetic valve

A control unit having a circuit substrate mounted within a housing that is adapted to be mounted upon a hydraulic valve body with a coil spacer mounted upon said substrate. The coil spacer including at least one coil support ring having resilient member extending in a radial direction from the edge of the ring into the center of the ring. The control unit also including a solenoid coil and flux casing assembly mounted upon the coil spacer ring with the solenoid coil and flux casing assembly flexing the resilient member such that the resilient member urges flux casing away from the coil spacer.

Control unit for vehicle brake system

A control valve for controlling fluid flow in a hydraulic control unit of a vehicular brake system includes a valve seat. A sleeve is mounted on the valve seat. An armature core is slidably received in the sleeve. The sleeve includes a first ferromagnetic portion adjacent the valve seat, a second ferromagnetic portion, and an annular region defining an area of increased magnetic reluctance. A part of the first portion of the sleeve defines a radial magnetic pole for the generally radial flow of magnetic flux from the armature to the sleeve. A portion of the valve seat adjacent the armature defines an axial magnetic pole for the generally axial flow of magnetic flux from the armature to the valve seat. Together, the generally radial flow of flux and the generally axial flow of flux generate a force urging the armature from an open position toward a closed position when the coil is energized.

Control valve for a vehicular brake system

A coil assembly comprises a coil wound upon a bobbin. A pair of terminals is supported by the bobbin. The coil has a pair of lead wires, each of which is connected to one of the terminals. Each terminal is adapted to be coupled to an electronic control unit. The coil is enclosed at least in part by a flux return casing. At least one resilient member is arranged and configured to urge the bobbin and the casing axially downward.

Self-locating coil assembly

Growing community of inventors

Dearborn, MI, United States of America

David E Collins