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, 2001
Filed:
Jan. 21, 2000
Kent Weber, Seattle King, WA (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
Environmental control and electric power are provided for a vehicle (,) carrying at least one gas turbine engine (,) including a turbine (40,46) and a compressor (,); a stored energy device (,); a first turbine (,) powered by the stored energy device (,); an expansion turbine (,) for an air cooling cycle; and an electric generator (,) rotatably driven by the first turbine (,) and the expansion turbine (,). The electric generator (,) has a minimum operating speed required to generate acceptable electric power for the vehicle (,). The environmental control and electric power for the vehicle (,) are provided by a method including the steps of normally rotating the expansion turbine (,) with bleed air from the compressor (,) of the at least one gas turbine engine (,) to generate temperature conditioned, pressurized air for the environmental control of the vehicle; driving the electric generator (,) above the minimum speed with the expansion turbine (,) to provide electric power for the vehicle (,); and, in the absence of sufficient power from the expansion turbine (,), maintaining the electric generator (,) above the minimum speed by powering the first turbine (,) with the stored energy device (,) to provide electric power for the vehicle (,).