Search International and National Patent Collections

1. (WO2013126105) INTEGRATED STRUCTURE ELECTRO-HYDRAULIC VALVE

Pub. No.:    WO/2013/126105    International Application No.:    PCT/US2012/065545
Publication Date: Fri Aug 30 01:59:59 CEST 2013 International Filing Date: Sat Nov 17 00:59:59 CET 2012
IPC: F15B 13/04
F15B 13/044
F16K 31/04
Applicants: MOOG INC.
Inventors: KOPP, John
MAZURKIEWICZ, Christopher
Title: INTEGRATED STRUCTURE ELECTRO-HYDRAULIC VALVE
Abstract:
The improved servovalve broadly (20) includes: a body (21) having an axis of elongation (y-y), a portion of the body defining a cylinder (43) having an axis (x-x) substantially perpendicular to the body axis; a valve member (44) movably mounted in the cylinder, and adapted to be moved off-null in either direction along the cylinder axis to selectively meter the flows of fluid between a plurality of ports defined between the spool and cylinder; a rotor (58) mounted on the body for rotation about the body axis; a motor (69) acting between the body and rotor, and selectively operable to cause the rotor to rotate in a desired angular direction relative to the body; and a quill-like transfer member (64) acting between the rotor and valve spool.