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 8944793 B1

Date of Patent:

Feb. 03, 2015

Filed:

Sep. 13, 2012

Flow and pressure ripple reduction with advance dual gear and bearing face cut

Applicant:

Weishun NI, Rockton, IL (US);

Inventor:

Weishun Ni, Rockton, IL (US);

Assignee:

Hamilton Sundstrand Corporation, Windsor Locks, CT (US);

Attorney:

Cantor Colburn LLP

Primary Examiner:

Theresa Trieu

Int. Cl.

CPC ...

F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 18/00 (2006.01); F16H 1/06 (2006.01); F04C 2/18 (2006.01); F04C 11/00 (2006.01);

U.S. Cl.

CPC ...

F16H 1/06 (2013.01); F04C 2/18 (2013.01); F04C 11/001 (2013.01); F04C 2210/1044 (2013.01); F04C 2220/24 (2013.01); F04C 2240/56 (2013.01);

Abstract

An aircraft turbine engine Fuel Metering Unit (FMU) is provided including a main gear pump having a main drive gear and a main driven gear and a servo gear pump having a servo drive gear and a servo driven gear. The main drive gear and the servo drive gear are received on an input shaft. The main driven gear is mounted to a first shaft oriented parallel to and adjacent a first side of the input shaft. The main driven gear is in meshing engagement with the main drive gear. The servo drive gear is mounted to a second shaft arranged parallel to and adjacent a second, opposite side of the input shaft. The servo driven gear is in meshing engagement with the servo drive gear.

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