Invention Grant
- Patent Title: Two-stage closed center electro-hydraulic valve
-
Application No.: US15518349Application Date: 2015-09-30
-
Publication No.: US10344888B2Publication Date: 2019-07-09
- Inventor: John Kopp , Christopher Mazurkiewicz
- Applicant: Moog Inc.
- Applicant Address: US NY East Aurora
- Assignee: Moog Inc.
- Current Assignee: Moog Inc.
- Current Assignee Address: US NY East Aurora
- Agency: Harter Secrest & Emery LLP
- International Application: PCT/US2015/053225 WO 20150930
- International Announcement: WO2016/054211 WO 20160407
- Main IPC: F16K31/42
- IPC: F16K31/42 ; F15B13/044 ; F16K31/04 ; F16K31/08 ; F15B13/043

Abstract:
A servovalve (15) comprising a motor (16), a motor bias mechanism (20), a first stage valve member (22) adapted to be moved from a first position to a first off-null position, a second stage member (29) adapted to be moved from a first position to a second position with movement of the first valve member (22), a transfer link (34) acting between the first (22) and second (29) valve members, an eccentric drive member (35) acting between the motor (16) and the transfer link (34), the transfer link (34) and drive member (35) configured such that selective movement of the motor (16) causes the transfer link (34) to move the first valve member (22), movement of the first valve member (22) causes the second valve member (29) to move, and movement of the second valve member (29) causes the transfer link (34) to move the first valve member (22) from the first off-null position back to the null position.
Public/Granted literature
- US20170248251A1 TWO-STAGE CLOSED CENTER ELECTRO-HYDRAULIC VALVE Public/Granted day:2017-08-31
Information query