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. 13, 2012
Filed:
Dec. 17, 2008
Guy Riverin, Montreal, CA;
Guy Riverin, Montreal, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A system and a method useful for determining and controlling flow in an engine load compressorhaving an inletand an outlet. Meansare provided for measuring static pressure at one or more locations within the load compressor inlet. Meansare also provided for measuring static pressure at one or more locations within the load compressor outlet. The system further comprises meansfor measuring temperature at at least one location within the compressor, and one or more processorsadapted for calculating ratios relating compressor outlet and inlet pressures, optionally normalizing the calculated pressure ratios according to any one or more of reference temperatures, inlet guide vane positions, and compressor speeds, and for determining, using the optionally normalized pressure ratios, desired load compressor output flow rates Q.