Robert L Carroll

US Patent:

42900310, Sep 15, 1981

Filed:

Jul 18, 1979

Appl. No.:

6/058714

Inventors:

Robert G. Carroll - West Palm Beach FL
John I. Caporini - Palm Beach Gardens FL
William J. Egan - Lake Park FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

H01S 305

US Classification:

331 945G

Abstract:

A gas dynamic laser is formed having a combustor with a cylindrical combustion chamber, said combustion chamber is formed having a discharge opening at one end and primary injection means at the other end with a plurality of injector tubes for injecting a combustible mixture into said combustion chamber; an igniter is included for igniting said mixture; a secondary injection means is located adjacent the discharge opening and has a plurality of nozzle tubes for injecting an oxidizer, one nozzle tube being included for each injector tube; each cooperating nozzle tube and injector tube being axially aligned, with said nozzle tubes directing the oxidizer towards the injector tubes, a mixing chamber being located downstream of the secondary injection means for directing the gases to a nozzle array. The secondary injection means is constructed to have easy accessibility to the nozzle tubes.

US Patent:

41854578, Jan 29, 1980

Filed:

Jan 28, 1976

Appl. No.:

5/653187

Inventors:

Sidney D. Parker - Lake Park FL
Robert G. Carroll - West Palm Beach FL
William L. Howell - North Palm Beach FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F02K 306
F02C 702

US Classification:

60204

Abstract:

A turbofan-ramjet engine is provided with optional duct burning in the turbofan mode. A core engine is provided with a first annular passage therearound for directing airflow around the inlet of the core engine. A second annular passage having a fan directs air flow into the inlet of the core engine and said first annular passage. A third annular passage extends around the first and second annular passage with the first and third annular passage each directing their flow into a common annular combustion chamber. Variable vanes are provided in the first and third annular passages to provide for blocking off the passage or acting as swirl vanes depending on mode of operation. Blocking vanes are also provided in the annular exhaust passage of the core engine. Coannular nozzles are provided with one located at the exhaust of the core engine and an outer one located aft of the common annular combustion chamber. Air bleed means are provided for providing a positive pressure behind vanes in the first or third annular passage when either one is placed in its flow-blocking position to prevent undesired propagation of flame into that passage.

US Patent:

44997353, Feb 19, 1985

Filed:

Feb 9, 1984

Appl. No.:

6/578304

Inventors:

George W. Moore - Palm Beach Gardens FL
Robert G. Carroll - Jupiter FL

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

F02C 722

US Classification:

60739

Abstract:

A segmented, zoned fuel injection system for use within the entrance area of a combustor. The fuel injection system has a plurality of spray bars formed as part of closely-spaced apart segments. The spray bars are zoned to permit additional control of profile and flow rate of fuel injected into the combustor. This design permits radial profile control within the combustor, maintains higher efficiency at low fuel flows and easy replacement and/or maintenance of the components thereof.

US Patent:

57911371, Aug 11, 1998

Filed:

Nov 13, 1995

Appl. No.:

8/556316

Inventors:

Tyler T. Evans - Palms Beach Gardens FL
Robert G. Carroll - West Palm Beach FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F23R 336

US Classification:

60 39463

Abstract:

A gas turbine engine combustor can operate on either liquid fuel or gaseous fuel while maintaining low levels of nitrous oxide emissions. An upstream end of each of a plurality of mixing tubes includes an external manifold that is supplied with gaseous fuel. The gaseous fuel is injected into the mixing tubes through a plurality of orifices with sufficient momentum to be uniformly distributed across the flow path of each mixing tube. The optimum fuel/air ratio for low nitrous oxide emissions does not exceed seventy five percent (75%) of the stoichiometric ratio for a given fuel.