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:
Dec. 30, 2008
Filed:
Sep. 27, 2005
Applicant:
Harold J. Riley, Gilbert, AZ (US);
Inventor:
Harold J. Riley, Gilbert, AZ (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/04 (2006.01); F02C 9/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An auxiliary power unit (APU) includes a controller that controls the position of an APU inlet door, and thus ram air flow to the APU, to ensure optimal starting conditions are attained and maintained in the APU during APU startup operations. The controller receives a signal representative of an APU operational parameter and, in response, to supplies APU inlet door position commands. An APU inlet door actuator is coupled to the APU inlet door and, in response to the APU inlet door position commands, moves the APU inlet door to the commanded position.