Honeywell International Inc.

David Druhan

Sammuel Tillich

Donna Laboda

Matt Arend

Nicholas Wilson

Armature springs configured to be coupled to and bias an armature of a torque motor valve actuator to a null position are provided. The armature spring comprises a rigid central portion, opposed end portions, and a flexible portion intermediate the rigid central portion and each end portion. The rigid central portion, the opposed end portions, and the flexible portions define a variable cross section torsion bar with the flexible portions comprising reduced cross-sectional portions of the torsion bar relative to the rigid central portion and opposed end portions. Armature assemblies and torque motor valve actuators are also provided.

High-temperature and high-vibration capable armature assemblies for torque motor valve actuators

Flapper assemblies for torque motors of electrohydraulic valves are provided. The flapper assembly comprises a flapper having an upper end portion configured for coupling to an armature and armature-flapper support of the torque motor and a lower end portion having a socket therein. A hemispherical closure member having a flat diametrical face configured to seal against a nozzle outlet is disposed for oscillatory movement in the socket. A retaining clip is slidably mounted about the lower end portion and has a retention opening exposing the flat diametrical face and sized to retain the hemispherical closure member in the socket. The torque motor comprises the armature coupled to the armature-flapper support, the flapper assembly, and a plurality of coils. The electrohydraulic valve comprises the torque motor and a nozzle configured to be in fluid communication with the flapper assembly when the electrohydraulic valve is in an open position.

Flapper assemblies for torque motors of electrohydraulic valves

Position sensors, metering valve assemblies, and fuel delivery and control systems are provided. In an embodiment, by way of example only, a position sensor includes a rotor, a primary winding wound around the rotor, a stator surrounding at least a portion of the rotor and the primary winding, and a secondary winding disposed adjacent to the stator. At least one of the primary winding and the secondary winding comprises copper and nickel.

Position sensors, metering valve assemblies, and fuel delivery and control systems

A torque motor () includes a support (), a jet tube passage () in the support having a first end opening () and a second end opening (), a jet tube () extending into the jet tube passage () through the first end opening () for directing a flow of fluid into a chamber () in fluid communication with the jet tube passage second end opening (), and a flexible, convoluted, seal () hermetically connected to the jet tube passage () and the jet tube () for sealing the jet tube passage first end () while permitting at least a portion of the jet tube () to move relative to the jet tube passage ().

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South Bend, IN, United States of America

David Druhan