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:
Apr. 10, 2007
Filed:
May. 18, 2004
David J. Tuttle, South Bend, IN (US);
Steven Fisher, South Bend, IN (US);
Christopher D. Eick, Phoenix, AZ (US);
Michael A. Mcpherson, Phoenix, AZ (US);
David J. Tuttle, South Bend, IN (US);
Steven Fisher, South Bend, IN (US);
Christopher D. Eick, Phoenix, AZ (US);
Michael A. McPherson, Phoenix, AZ (US);
Honeywell International Inc., Morris Township, NJ (US);
Abstract
A fuel control system for a gas turbine engine is disclosed that includes a flow path carrying fuel from a fuel source to a combustion chamber, an ecology valvefor removing a quantity of fuel from the flow path, the ecology valvebeing shiftable in a first direction from a first position to a second position and in a second direction from said second position to said first position and a fuel lineconnected between the flow path and the ecology valvefor moving fuel between the flow path and the ecology valveto bias the ecology valvetoward the second position, where the fuel lineis configured, such as by the inclusion of an orificed check valve 150 therein, to allow fuel to move therethrough away from the ecology valveat a greater rate than toward the ecology valve