Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1998-02-27
2000-06-20
Freay, Charles G.
Power plants
Combustion products used as motive fluid
Combustion products generator
60 3932, F02C 100
Patent
active
060763566
ABSTRACT:
A fuel injector for a gas turbine engine of an aircraft has an inlet fitting, a fuel nozzle, and a housing stem fluidly interconnecting and supporting the nozzle on the fitting. An internal heatshield assembly comprising an internal fuel conduit extends in a bore in the housing stem. An upper end of the fuel conduit has a rigid, fluid-tight connection with a fuel inlet passage in the fitting, while the lower end of the fuel conduit has a rigid, fluid-tight connection with the fuel nozzle. The bore closely surrounds the fuel conduit and a stagnant air gap is provided between the internal walls of the bore and the outer surface of the fuel conduit. The bore can be completely enclosed with a vacuum drawn in the bore, or can be open at its lower end to an air swirler in the fuel nozzle. The fuel conduit can have a single or dual internal fuel flow passages, and a coiled or convoluted portion within an enlarged cavity in the bore to allow for thermal expansion of the fuel conduit. The fuel injector can be easily assembled with the engine combustor using a flange extending outwardly from the housing stem, and can be easily disassembled for inspection or replacement.
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Literature for Deltatwist Heat Exchange Products, copyright date 1984.
International Application Published Under PCT Application No. WO 97/34108.
Three (3) drawings representative of prior heaetshield designs. It is respectfully requested that the U.S. Patent Office initially consider these drawings as showing heatshield designs which were publicly known or used in the United States prior to Applicant's invention. These designs are generally described in the Specification, pp. 1-4. Applicant reserves the right to supplement this Information Disclosure Statement should additional information become available.
Notification of Transmittal of the Internotional Preliminary Examination Report filed in PCT/US97/03964.
Freay Charles G.
Gartenberg Ehud
Hunter Christopher H.
Parker-Hannifin Corporation
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