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Research/Patents/US 5394685
US 5394685

METHOD AND APPARATUS TO ENHANCE COMBUSTION RATES AND EXTEND EXTINCTION LIMITS IN HIGH SPEED PROPULSION UNITS

Assignee

UNITED TECHNOLOGIES CORPORATION

Filed

Nov 14, 1990

Granted

Mar 7, 1995

Location

WEST HARTFORD CT US

Abstract

A stream of hydrocarbon fuel is catalytically decomposed to produce hydrogen and lower molecular weight fuel fragments, which may separated by molecular size. The hydrogen and low molecular weight fuel fragments are introduced along with a stream of nondecomposed hydrocarbon fuel into the combustor of a high speed propulsion unit. The method results in a wider combustor operating range, with higher combustion rates and increased flame stability, achieved through more rapid diffusional mixing. The process effectively extends the operating limits of gas turbines, and especially ramjet and scramjet combustors.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 9, 1991

Rescinded

Jul 29, 1994

Duration

3 years, 3 months

Inventor

  • 1ARTHUR S. KESTEN

Technology Domains

Propulsion

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External Sources

Google Patents — US 5394685USPTO Full Patent (PDF)Browse active SO patents

Record Details

Patent number
US 5394685
Application
07612763
Aerospace match
Yes
Dataset source
35 USC §181 SO records

Browse by Assignee

UNITED TECHNOLOGIES CORPORATION
Back to patent indexSource: USPTO 35 USC §181 secrecy order records