Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-02-14
2010-11-30
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S785000
Reexamination Certificate
active
07841185
ABSTRACT:
Disparities between optimum engine thrust for aircraft operation and power necessary to drive an ancillary machine such an electrical power generator can cause problems within a turbine engine. Clearly, it is necessary to continue developing sufficient electrical power for control and other systems within an aircraft despite aircraft thrust requirements. Previously, some compressed air flow has been bypassed in order to maintain compressor stability, but unfortunately such bypass systems within turbine engines can have a thrust recovery regime such that there is excess thrust in comparison with that actually necessary. In accordance with the present invention, a proportion of the compressed air flow is bled directly through a bleed path to an exhaust nozzle104of an engine such that the compressor core can continue to provide work to drive an ancillary machine whilst engine thrust is limited to that actually required, achieving a significant saving in terms of fuel consumption and wear and tear upon brakes, etc under low power operation.
REFERENCES:
patent: 2990905 (1961-07-01), Lilley
patent: 3070131 (1962-12-01), Wheatley
patent: 3398896 (1968-08-01), Rabone
patent: 3641766 (1972-02-01), Uehling
patent: 4551972 (1985-11-01), Lewis
patent: 5184461 (1993-02-01), Stransky
patent: 5235808 (1993-08-01), Taylor
patent: 5485717 (1996-01-01), Williams
patent: 5706651 (1998-01-01), Lillibridge
patent: 6308898 (2001-10-01), Dorris et al.
patent: 2001/0039794 (2001-11-01), Rocklin et al.
patent: 0 948 571 SP (1964-02-01), None
patent: 2 207 468 (1989-02-01), None
patent: 2 377 973 (2003-01-01), None
Howarth Nicholas
Richards Martyn
Cuff Michael
Manelli Denison & Selter PLLC
Melcher Jeffrey S.
Nguyen Andrew
Rolls-Royce plc
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