Rotorcraft blade provided with a tiltable flap and a fastener tongue
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0585209
(2006-10-24)
|
등록번호 |
US-7594796
(2009-10-12)
|
우선권정보 |
FR-05 10917(2005-10-26) |
발명자
/ 주소 |
- De La Grandmaison, François Lorin
- Morant, Michel
- Gaffiero, Jacques
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
1 |
초록
▼
The present invention relates to a rotorcraft rotor blade (1) that comprises at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5). The blade (1) is
The present invention relates to a rotorcraft rotor blade (1) that comprises at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5). The blade (1) is remarkable in that the flap (5) is provided with at least two fastener ball joints (30), each provided with an inner cage (32) together with an outer cage (33) and a first pin (31) that is also secured to said flap (5), the first pins (31) of the fastener ball joints (30) being perpendicular to the virtual pivot axis (Y') of the flap (5). In addition, the blade (1) is provided at its trailing edge (BF) with a fastener tongue (20) provided with ball-receiving sockets (21), the outer cages (33) of the fastener ball joints (30) being secured to the ball-receiving sockets (21).
대표청구항
▼
What is claimed is: 1. A rotorcraft rotor blade (1) having at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5), wherein said flap (5) includes at
What is claimed is: 1. A rotorcraft rotor blade (1) having at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5), wherein said flap (5) includes at least two fastener ball joints (30) each provided with an inner cage (32) together with an outer cage (33) and a first pin (31) secured to said flap (5), said blade being provided at its trailing edge (BF) with a fastener tongue (20) provided with ball-receiving sockets (21), said outer cages (33) of the fastener ball joints (30) being secured to said ball-receiving sockets (21), wherein said first pin (31) of each fastener ball joint (30) is perpendicular to said virtual pivot axis (Y') of said flap (5). 2. A blade according to claim 1, wherein said blade (1) has a suction side face (50) and a pressure side face (6), with said side faces (50 and 6) meeting at the trailing edge (BF) of said blade (1) in order to form said tongue (20). 3. A blade according to claim 1, wherein said tongue (20) is rigid. 4. A blade according to claim 1, wherein said flap (5) includes an opening provided with a bottom lip (5") and a top lip (5'), said tongue (20) being arranged between said top and bottom lips (5', 5") when said flap (5) is secured to said blade (1). 5. A blade according to claim 4, wherein said bottom and top lips (5", 5') describe an angular field β of about 20°. 6. A blade according to claim 1, wherein the angle of inclination of said flap (5) relative to said blade (1) is controlled with the help of at least one control arm (46) secured to said flap (5), said control arm (46) being controlled by an actuator (10, 10') arranged in said blade (1). 7. A blade according to claim 6, wherein said tongue (20) extends along the span direction of said flap (5), with said tongue (20) comprising at least two distinct portions (20', 20", 20"') that are separated by a control arm (46). 8. A rotorcraft rotor blade (1) having at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5), wherein said flap (5) includes at least two fastener ball joints (30) each provided with an inner cage (32) together with an outer cage (33) and a first pin (31) secured to said flap (5), said blade being provided at its trailing edge (BF) with a fastener tongue (20) provided with ball-receiving sockets (21), said outer cages (33) of the fastener ball joints (30) being secured to said ball-receiving sockets (21), wherein said blade (1) has a rib (7) in the proximity of its trailing edge (BF), with said tongue (20) being situated substantially halfway up said rib (7). 9. A rotorcraft rotor blade (1) having at least one tiltable trailing-edge flap (5), said flap (5) being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade (1) and of said flap (5), wherein said flap (5) includes at least two fastener ball joints (30) each provided with an inner cage (32) together with an outer cage (33) and a first pin (31) secured to said flap (5), said blade being provided at its trailing edge (BF) with a fastener tongue (20) provided with ball-receiving sockets (21), said outer cages (33) of the fastener ball joints (30) being secured to said ball-receiving sockets (21), wherein said tongue (20) includes a flexible tape (22) at its free end (EX).
이 특허에 인용된 특허 (1)
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Eiichi Yamakawa JP; Noriaki Katayama JP; Tetsuya Hori JP, Flap support mechanism and a flap-equipped rotor blade.
이 특허를 인용한 특허 (6)
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Moser, Matthew A.; Finn, Michael R., Adaptive trailing edge actuator system and method.
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Richards, William Mark, Downhole control line connector.
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Richards, William Mark, Downhole expandable control line connector.
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Richards, William Mark, Helical control line connector for connecting to a downhole completion receptacle.
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Richards, William Mark, Helical dry mate control line connector.
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Richards, William Mark, Methods of coupling a downhole control line connector.
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