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:
Jan. 06, 2004
Filed:
Jan. 28, 2002
Charles A. Fieldson, Bothell, WA (US);
Andre G. Brasseur, Everett, WA (US);
Gregory L. Campbell, late of Stanwood, WA (US);
Paul A. Gifford, Bellevue, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
The present invention provides a temperature control system for an aircraft ventilation system that couples with existing aircraft upstream ventilation system architecture and downstream ventilation system architecture. The temperature control system includes an air duct arranged to receive a volume of ventilation air from the upstream ventilation system architecture and transfer the volume of air to the downstream ventilation system architecture. At least one heater is interposed within the duct and is arranged to heat the ventilation air. Additionally, at least one temperature sensor that is in thermodynamic communication with the volume of air within the duct is located downstream from the at least one heater and is arranged to determine an actual temperature of the ventilation air. A controller is in electrical communication with the at least one heater and the at least one temperature sensor. The controller is programmed with a predetermined range of temperatures above the freezing point of water. The controller is arranged to control the heater responsive to a comparison of the actual temperature of the ventilation air to the predetermined range of temperatures. The controller maintains the actual ventilation air temperature within the predetermined range of temperatures such that formation of ice is minimized in the aircraft ventilation system.