Turbofan engine with a core driven supercharged bypass duct

Power plants – Reaction motor – Interrelated reaction motors

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

602263, 60262, F02K 302, F02K 307

Patent

active

058097724

ABSTRACT:
A multiple bypass turbofan engine including a core engine assembly has a fan bypass duct radially outward of the core engine assembly and has first and second inlets disposed between forward and aft fans driven by a low pressure turbine and a core engine turbine respectively. An inlet duct having an annular duct wall is disposed radially inward of the bypass duct and connects the second inlet to the bypass duct and has disposed within a supercharger means for compressing air which is drivingly connected to the core turbine. One embodiment of the aft fan may have radially inner and outer rows of aft fan vane airfoils separated by a non-rotatable portion of the annular duct wall such that the outer row of aft fan vane airfoils are disposed in the inlet duct and at least one of the aft fan vane airfoils is and, preferably, all of which are, independently variable. Radially inner and outer rows of aft fan rotor blade airfoils separated by a rotatable portion of the annular duct wall such that the outer row of aft fan rotor blade airfoils are disposed in the inlet duct adjacent to and longitudinally aft of radially inner and outer rows of aft fan vane airfoils, respectively. The radially outer rows of aft fan vane and rotor blade airfoils provide the supercharger means.

REFERENCES:
patent: 3224194 (1965-12-01), De Feo et al.
patent: 3296800 (1967-01-01), Keenan et al.
patent: 3314654 (1967-04-01), Thenault et al.
patent: 3449914 (1969-06-01), Brown
patent: 3540682 (1970-11-01), Dibble
patent: 3688504 (1972-09-01), Hutchinson et al.
patent: 3792584 (1974-02-01), Klees
patent: 3841091 (1974-10-01), Sargisson et al.
patent: 3854286 (1974-12-01), Klees
patent: 3879941 (1975-04-01), Sargisson
patent: 3886737 (1975-06-01), Grieb
patent: 3915413 (1975-10-01), Sargisson
patent: 4010608 (1977-03-01), Simmons
patent: 4043121 (1977-08-01), Thomas et al.
patent: 4050242 (1977-09-01), Dusa
patent: 4055042 (1977-10-01), Colley
patent: 4064692 (1977-12-01), Johnson et al.
patent: 4068471 (1978-01-01), Simmons
patent: 4069661 (1978-01-01), Rundell et al.
patent: 4080785 (1978-03-01), Koff et al.
patent: 4086761 (1978-05-01), Schaut et al.
patent: 4169692 (1979-10-01), McDonough et al.
patent: 4175384 (1979-11-01), Wagenknecht et al.
patent: 4222235 (1980-09-01), Adamson et al.
patent: 4285194 (1981-08-01), Nash
patent: 4409788 (1983-10-01), Nash et al.
patent: 4446696 (1984-05-01), Sargisson et al.
patent: 4791783 (1988-12-01), Johnson
patent: 4958489 (1990-09-01), Simmons
patent: 5048286 (1991-09-01), Stransky et al.
patent: 5113649 (1992-05-01), Siedlecki, Jr.
patent: 5155993 (1992-10-01), Baughman et al.
patent: 5261227 (1993-11-01), Giffin, III
patent: 5274999 (1994-01-01), Rohra et al.
patent: 5305599 (1994-04-01), Marvin
patent: 5327716 (1994-07-01), Giffin, III et al.
patent: 5343697 (1994-09-01), Johnson et al.
patent: 5404713 (1995-04-01), Johnson
patent: 5406787 (1995-04-01), Terrier
"5.5 Mass-Flow Ratio or Area Ratio", Jet Propulsion For Aerospace Applications, Second Edition, Pitman Publishing Corp., by Walter J. Hesse & Nicholas V. S. Mumford, Jr., pp. 111-114.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Turbofan engine with a core driven supercharged bypass duct does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Turbofan engine with a core driven supercharged bypass duct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbofan engine with a core driven supercharged bypass duct will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1612784

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.