Invention Grant
- Patent Title: Flapper assemblies for torque motors of electrohydraulic valves
- Patent Title (中): 电动液压阀转矩电机的翻板组件
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Application No.: US14227923Application Date: 2014-03-27
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Publication No.: US09377122B2Publication Date: 2016-06-28
- Inventor: David T. Druhan , Nicholas E. Wilson , Sammuel Tillich
- Applicant: HONEYWELL INTERNATIONAL INC.
- Applicant Address: US NJ Morris Plains
- Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee Address: US NJ Morris Plains
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: F16K1/42
- IPC: F16K1/42 ; F16K31/04 ; F16K27/04 ; F16K25/00 ; H02K26/00 ; F16K31/06 ; H02K7/14

Abstract:
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.
Public/Granted literature
- US20150276083A1 FLAPPER ASSEMBLIES FOR TORQUE MOTORS OF ELECTROHYDRAULIC VALVES Public/Granted day:2015-10-01
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