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:
Apr. 17, 1979
Filed:
Sep. 13, 1977
Wilbur A Spraker, Indianapolis, IN (US);
Kenneth F Kaiser, Indianapolis, IN (US);
Wallace Murray Corporation, New York, NY (US);
Abstract
An air supply system having a combustor whose output drives a turbine. The turbine drives a compressor part of whose output is fed to the combustor. A portion of the compressor output is bled off for utility usage. Instead of varying the fuel rate to the combustor to match varying demand in utility usage, the fuel rate is fixed. Operation of the system at air flows above and below that corresponding to the fixed fuel rate is accommodated by (1) a poppet relief valve which opens at high pressures and (2) a butterfly valve in the bleed (utility) line which rotates to decrease the bleed flow upon decrease in pressure.