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1. WO1996002746 - THRUST REVERSER

Publication Number WO/1996/002746
Publication Date 01.02.1996
International Application No. PCT/US1995/007697
International Filing Date 22.06.1995
IPC
F02K 1/32 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
28using fluid jets to influence the jet flow
32for reversing thrust
F02K 1/64 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
64Reversing fan flow
F02K 1/72 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
64Reversing fan flow
70using thrust reverser flaps or doors mounted on the fan housing
72the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow
F02K 1/74 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
74Reversing at least one flow in relation to at least one other flow in a plural-flow engine
CPC
F02K 1/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
28using fluid jets to influence the jet flow
32for reversing thrust
F02K 1/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
64Reversing fan flow
F02K 1/72
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
64Reversing fan flow
70using thrust reverser flaps or doors mounted on the fan housing
72the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow
F02K 1/74
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
1Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
54Nozzles having means for reversing jet thrust
74Reversing at least one flow in relation to at least one other flow in a plural- flow engine
Y02T 50/60
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
50Aeronautics or air transport
60Efficient propulsion technologies, e.g. for aircraft
Applicants
  • GRUMMAN AEROSPACE CORPORATION [US]/[US]
Inventors
  • TINDELL, Runyon, H.
Agents
  • ANDERSON, Terry, J.
Priority Data
08/274,90014.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THRUST REVERSER
(FR) INVERSEUR DE POUSSEE
Abstract
(EN)
A thrust reverser for an aircraft, having a podded nacelle (2) housing an engine (4), having a core (5), and a fan (6) producing normally aft-flowing exit streams (7), utilizes a stream director including an annular slot (8) through the outer wall (3) of the nacelle (2). The slot (8) has a convex forward surface (12) and a concave aft surface (13), a cascade of turning vanes (9) in the slot (8) for directing part of the core stream and most of the fan exit stream (7) forward through the slot (8). A jet injector (10a, 10b, and 10c) injects an annular jet of high pressure air into the fan exit stream (7) upstream of, and adjacent to the slot (8), thereby discharging the part of the core flow and most of the fan exit streams (7) forward through the slot (8), the turning vanes (9) and the outer wall (3) to provide a braking force for the aircraft.
(FR)
Un inverseur de poussée conçu pour un aéronef et possédant une nacelle (2) logeant un moteur (4) comportant un générateur de gaz (5) et une soufflante (6) produisant normalement des courants de sortie dirigés vers l'arrière (7), utilise un organe de commande du courant comprenant une fente annulaire (8) traversant la paroi extérieure (3) de la nacelle (2). La fente (8) possède une surface convexe tournée vers l'avant (12) et une surface concave tournée vers l'arrière (13), une grille d'aubes rotatives (9) situées dans ladite fente (8) servant à diriger vers l'avant une partie du flux primaire, ainsi que la majeure partie du courant de sortie de la soufflante (7) à travers ladite fente (8). Une buse (10a, 10b et 10c) injecte un jet annulaire d'air sous pression élevée à l'intérieur du courant de sortie de la soufflante (7) en amont de la fente (8) et en position contiguë à ladite fente (8), ce qui évacue la partie de flux primaire et la majeure partie du courant de sortie de la soufflante (7) vers l'avant à travers la fente (8), les aubes rotatives (9) et la paroi extérieure (3), afin de créer une force de freinage de l'aéronef.
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