Nicholas J Wilson

US Patent:

20150276083, Oct 1, 2015

Filed:

Mar 27, 2014

Appl. No.:

14/227923

Inventors:

- Morristown NJ, US
Nicholas E. Wilson - Three Rivers MI, US
Sammuel Tillich - South Bend IN, US

Assignee:

HONEYWELL INTERNATIONAL INC. - Morristown NJ

International Classification:

F16K 31/04
F16K 25/00
H02K 26/00
F16K 27/04

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.