Eugene J Matthews

US Patent:

57911380, Aug 11, 1998

Filed:

Jan 11, 1996

Appl. No.:

8/584342

Inventors:

Robert W. Lillibridge - Woodland Hills CA
Kenneth R. McGuire - Encino CA
Edward J. Phillips - San Diego CA
Eugene James Matthews - Encino CA

Assignee:

Burbank Aeuronautical Corporation II - Burbank CA

International Classification:

F02K 304

US Classification:

60262

Abstract:

A noise reduction kit for modifying a two (2) spool axial flow turbofan engine with multi-stage compressors and fan driven by multi-stage reaction turbines, and a thrust of at least about 18,000 lbs. at sea level. There is a fan at the upstream end of the core engine for generating axial fan air flow through bypass ducts terminating at a common nozzle, the common nozzle having a mixing plane area for each of the fan air flow and for the exhaust gas in a range between 700 and 800 square inches. A material layer is located in a spacing between a tip of blades for at least some of the fans and a duct for the fans, thereby to reduce a normal clearance between the tip of blades for the fan and the duct. Mixing means for radially diverting fan air and permitting radially outward expansion of exhaust gas is provided coaxially downstream to the core engine. An acoustically dampened light bulb-shaped nose cone is provided for coaxial attachment to an upstream end of the core engine.

US Patent:

57066515, Jan 13, 1998

Filed:

Aug 29, 1995

Appl. No.:

8/521139

Inventors:

Robert W. Lillibridge - Woodland Hills CA
Kenneth R. McGuire - Encino CA
Edward J. Phillips - San Diego CA
Eugene James Matthews - Encino CA

Assignee:

Burbank Aeronautical Corporation II - Burbank CA

International Classification:

F02C 7045
F02K 306

US Classification:

60262

Abstract:

A noise reduction kit for modifying a two (2) spool axial flow turbofan engine with multi-stage compressors and fan driven by multi-stage reaction turbines, and a thrust of at least about 18,000 lbs. at sea level. There is a fan at the upstream end of the core engine for generating axial fan air flow through bypass ducts terminating at a common nozzle, the common nozzle having a mixing plane area for each of the fan air flow and for the exhaust gas in a range between 700 and 800 square inches. A target thrust reverser includes opposing doors rotatable into position to block and divert the flow of exhaust gas for generating reverse thrust. Mixing means for radially diverting fan air and permitting radially outward expansion of exhaust gas is provided coaxially downstream to the core engine. An acoustically dampened light bulb-shaped nose cone is provided for coaxial attachment to an upstream end of the core engine. The axial flow front fan is axially separated from the inlet guide vane is extended relatively forwardly.

US Patent:

59438568, Aug 31, 1999

Filed:

Aug 1, 1997

Appl. No.:

8/905148

Inventors:

Robert W. Lillibridge - Woodland Hills CA
Kenneth R. McGuire - Encino CA
Edward J. Phillips - San Diego CA
Eugene James Matthews - Encino CA

Assignee:

Burbank Aeronautical Corporation II - Burbank CA

International Classification:

F02K 304

US Classification:

60262

Abstract:

A noise reduction kit for modifying a two (2) spool axial flow turbofan engine with multi-stage compressors and fan driven by multi-stage reaction turbines, and a thrust of at least about 18,000 lbs. at sea level. There is a fan at the upstream end of the core engine for generating axial fan air flow through bypass ducts terminating at a common nozzle, the common nozzle having a mixing plane area for each of the fan air flow and for the exhaust gas in a range between 700 and 800 square inches. A target thrust reverser includes opposing doors rotatable into position to block and divert the flow of exhaust gas for generating reverse thrust. Mixing means for radially diverting fan air and permitting radially outward expansion of exhaust gas is provided coaxially downstream to the core engine. An acoustically dampened light bulb-shaped nose cone is provided for coaxial attachment to an upstream end of the core engine. The axial flow front fan is axially separated from the inlet guide vane is extended relatively forwardly.