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:
Oct. 29, 2019
Filed:
Sep. 17, 2012
Applicant:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Inventors:
David J. Podgorski, Suffield, CT (US);
Peter M. Ballard, Enfield, CT (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/232 (2006.01); F23N 1/00 (2006.01); F16K 15/03 (2006.01);
U.S. Cl.
CPC ...
F02C 7/232 (2013.01); F16K 15/033 (2013.01); F23N 1/007 (2013.01); Y10T 137/87193 (2015.04); Y10T 137/87241 (2015.04);
Abstract
A minimum pressure shut-off valve closes off fuel flow responsive fuel pressure being below a predefined pressure. A sleeve includes at least a first flow window and a second flow window. The second window includes a notch providing a flow area based on an axial position of a spool moveable within the sleeve.