The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Nov. 29, 2022
Applicant:
Michael L. Hahn, Fort Collins, CO (US);
Inventor:
Michael L. Hahn, Fort Collins, CO (US);
Assignee:
Woodward, Inc., Fort Collins, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/26 (2006.01); F02C 7/22 (2006.01); F02C 9/46 (2006.01); F16K 37/00 (2006.01);
U.S. Cl.
CPC ...
F02C 9/263 (2013.01); F02C 7/22 (2013.01); F02C 9/46 (2013.01); F16K 37/0075 (2013.01); F05D 2260/80 (2013.01); F05D 2260/83 (2013.01); F05D 2260/84 (2013.01); F05D 2270/56 (2013.01); F05D 2270/70 (2013.01);
Abstract
A system and method of in situ verification of operational status of control components in a redundant flow control system is provided. The flow control system includes a primary electro-hydraulic servo valve (EHSV) and a secondary EHSV. Only the primary EHSV includes a position sensor. The redundant EHSVs are coupled via a transfer valve to control a position of a metering valve supplying fluid flow to at least one downstream system. The downstream system may be, e.g., a combustor, an actuator, an end effector, or a combination thereof.