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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.:

US 11946549 B1

PDFFull Text
Date of Patent:
Apr. 02, 2024

Filed:

Jan. 17, 2023

Fuel nozzle with reduced flow tolerance

Applicant:

Woodward, Inc., Fort Collins, CO (US);

Inventor:

Jimroy A. McCormack, Holland, MI (US);

Assignee:

Woodward, Inc., Fort Collins, CO (US);

Attorney:

Reinhart Boerner Van Deuren P.C.

Primary Examiner:

Atif H Chaudry

Int. Cl.
CPC ...
F16K 15/06 (2006.01); B67D 7/36 (2010.01); F02C 9/26 (2006.01); F16K 15/04 (2006.01); F16K 17/04 (2006.01); F16K 17/30 (2006.01); F16K 17/34 (2006.01); F16K 47/00 (2006.01); F16K 47/02 (2006.01); F23R 3/28 (2006.01);
U.S. Cl.
CPC ...
F16K 15/063 (2013.01); B67D 7/36 (2013.01); F02C 9/263 (2013.01); F16K 15/044 (2013.01); F16K 15/065 (2021.08); F16K 17/04 (2013.01); F16K 17/0433 (2013.01); F16K 17/30 (2013.01); F16K 17/34 (2013.01); F16K 47/011 (2021.08); F16K 47/0111 (2021.08); F16K 47/023 (2013.01); F23R 3/28 (2013.01); F05D 2220/32 (2013.01); Y10T 137/7727 (2015.04); Y10T 137/7931 (2015.04);
Abstract

A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.

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