Retractable bird and debris deflector for an aircraft jet engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/00
B64D-033/02
F02C-007/055
출원번호
US-0799396
(2013-03-13)
등록번호
US-9249727
(2016-02-02)
발명자
/ 주소
Matos, Jeffrey A.
출원인 / 주소
Matos, Jeffrey A.
대리인 / 주소
Milde, Jr., Karl F.
인용정보
피인용 횟수 :
0인용 특허 :
20
초록▼
A retractable deflector to deflect birds and debris from an air intake duct of an aircraft jet engine. The duct has a forward opening for air receipt. The deflector includes a plurality of elongate members disposed on the duct in spaced relation to each other, each member having two end segments and
A retractable deflector to deflect birds and debris from an air intake duct of an aircraft jet engine. The duct has a forward opening for air receipt. The deflector includes a plurality of elongate members disposed on the duct in spaced relation to each other, each member having two end segments and a central segment disposed between the two end segments; and a plurality of guiding members, each mounted for movement along the perimeter of the duct and coupled to one end segment of an elongate member. The central segment of each elongate member extends between a pair of guiding members such that the elongate member is movable by a respective pair of guiding members between a retracted position and a deployed position in front of the duct. When in the deployed position, the central segments are situated to impede the ingress of debris into the duct.
대표청구항▼
1. A retractable bird and debris deflector for an aircraft jet engine comprising an air intake duct with a central longitudinal axis and a forward opening for receipt of air, said forward opening having a perimeter and said deflector comprising, in combination: (A) a plurality of elongate members di
1. A retractable bird and debris deflector for an aircraft jet engine comprising an air intake duct with a central longitudinal axis and a forward opening for receipt of air, said forward opening having a perimeter and said deflector comprising, in combination: (A) a plurality of elongate members disposed on the air intake duct of the engine in spaced relation to each other, each member having two end segments and a central segment disposed between the two end segments;(B) a plurality of guiding members, each mounted for movement along a perimeter of the intake duct and coupled to one end segment of an elongate member, wherein the central segment of each elongate member extends between a pair of guiding members such that the elongate member is movable by said pair of guiding members between a retracted position and a deployed position in front of the intake duct such that: (a) in a first, deployed position, said central segments are arranged in front of said forward opening, in spaced relation; and(b) in a second, retracted position, said central segments are removed from the forward opening of said intake duct; whereby said central segments of said elongate members, when in said deployed position, are situated to impede the ingress of debris into said intake duct. 2. The deflector apparatus defined in claim 1, wherein said central segments are maintained in a substantially parallel relationship in the retracted position. 3. The deflector apparatus defined in claim 1, wherein said central segments are maintained in a substantially parallel relationship in the deployed position. 4. The deflector apparatus defined in claim 1, wherein said elongate members are arranged in a single closely spaced grouping when in said retracted position. 5. The deflector apparatus defined in claim 1, wherein said elongate members are arranged in a plurality of closely spaced groupings when in said retracted position. 6. The deflector apparatus defined in claim 1, wherein each said elongate member comprises a flexible cable. 7. The deflector apparatus defined in claim 6, wherein each said cable is comprised primarily of metal. 8. The deflector apparatus defined in claim 6, wherein each said cable is stretchable. 9. The deflector apparatus defined in claim 1, wherein said end segments of said elongate members are disposed inside a housing of said intake duct. 10. The deflector apparatus of claim 6, further comprising a cable take-up mechanism for selectively pulling and releasing said cable forming each elongate member. 11. The deflector apparatus defined in claim 6, further comprising a plurality of motors, each coupled to a respective elongate member, for maintaining tension in said cable during movement from said deployed position to said retracted position. 12. The deflector apparatus defined in claim 11, wherein each said motor is operable to release a respective cable while maintaining cable tension during movement from said retracted position to said deployed position. 13. The deflector apparatus of claim 1, further comprising a motorized mechanism for selectively moving said guiding members. 14. The deflector apparatus defined in claim 1, further comprising at least one motor, coupled to at least one of said pair of guiding members for moving said respective guiding member along said perimeter of said intake duct during movement from said deployed position to said retracted position. 15. The deflector apparatus defined in claim 14, further comprising at least one second motor, coupled to another one of said pair of guiding members for moving said other respective guiding member along said perimeter of said intake duct during movement from said deployed position to said retracted position. 16. The deflector apparatus defined in claim 1, further comprising at least one motor, coupled to one of said pair of guiding members for moving said respective guiding member along said perimeter of said intake duct during movement from said retracted position to said deployed position. 17. The deflector apparatus defined in claim 16, further comprising at least one second motor, coupled to another one of said pair of guiding members for moving said respective guiding member along said perimeter of said intake duct during movement from said retracted position to said deployed position. 18. The deflector apparatus as defined in claim 1 forming a first deflector apparatus, said deflector apparatus further comprising a second deflector apparatus comprising: (C) a plurality of second elongate members disposed on the air intake duct of the engine in spaced relation to each other, each second member having two end segments and a central segment disposed between the two end segments;(D) a plurality of second guiding members, each mounted for movement along a perimeter of the intake duct and coupled to one end segment of a second elongate member, wherein the central segment of each second elongate member extends between a pair of second guiding members such that the second elongate member is movable by said pair of said second guiding members between a retracted position and a deployed position in front of the intake duct, said central segments of said second elongate members being oriented, in said deployed position, substantially in parallel to each other but not in parallel to the elongate members of said first deflector apparatus, thereby to more fully protect said engine from the ingress of debris. 19. The deflector apparatus defined in claim 18, wherein said central segments of said second elongate members of said second deflector apparatus are oriented substantially perpendicular to said central segments of said elongate members of said first deflector apparatus. 20. The apparatus defined in claim 18, wherein a plane defined by the central segments of said elongate members is different than a plane defined by the central segments of said second elongate members; thereby to prevent intersection between the elongate members and the second elongate members. 21. The deflector apparatus defined in claim 1, wherein said elongate members rotate about an axis perpendicular to a longitudinal axis of said jet engine. 22. The deflector apparatus defined in claim 1, further comprising a cleaning apparatus, coupled to at least one of said guiding members for cleaning said elongate members. 23. The apparatus defined in claim 22, wherein said cleaning apparatus is selected from the group consisting of: (i) a nozzle, a reservoir coupled to said nozzle for supplying a cleaning fluid, and a pump coupled to said nozzle for dispersing said fluid through said nozzle, for providing a pressurized spray of said fluid for cleaning said elongate members;(ii) a nozzle, an air intake for supplying air, and a pump coupled to said nozzle for providing pressurized air for cleaning said elongate members;(ii) a brush for cleaning said elongate members; and(iv) a heating element, coupled to a power supply for heating said element, for applying heat to said and thereby cleaning said elongate members.
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이 특허에 인용된 특허 (20)
Sloan Mark L., Aircraft engine inlet hot gas and foreign object ingestion reduction and pitch control system.
Ando Kiyoatsu (Nagoya JA) Nakajima Hiroshi (Nagoya JA) Ueno Hiroshi (Nagoya JA), Device for preventing foreign matters from being sucked into a gas turbine engine for an aircraft.
Frost Wilson (Fairfield OH) Wood Peter J. (Cincinnati OH) Bobo Melvin (Cincinnati OH) Little Daniel R. (West Chester OH), Method and apparatus for ejecting foreign matter from the primary flow path of a gas turbine engine.
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