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:
Nov. 18, 2003
Filed:
Mar. 05, 2002
Applicant:
Inventors:
Melody Bornhoft, West Bloomfield, MI (US);
David Jarrell, Commerce Township, MI (US);
Assignee:
Williams International Co., L.L.C., Walled Lake, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 3/04 ;
U.S. Cl.
CPC ...
F02K 3/04 ;
Abstract
A multi-spool turbofan engine has a plurality of circumferentially spaced poppet valves with diverters secured thereto for precisely controlling bleed of combustion gas aft of the high pressure turbine whereby the high pressure spool operates at high idle RPM so as to power accessories and the low pressure spool operates at low RPM so as to minimize noise and fuel consumption.