Fairing for the rotor of a rotorscraft
View Patent ↗A fairing C is arranged on a rotor 9 of a rotorcraft having a cap 5 secured to the end 10 of the head of the rotor 9 . The fairing C further comprises at least one air deflector member D provided with a ring 6 and spacers 4 , the spacers 4 enabling the ring 6 to be secured to the cap 5.
1. A fairing arranged on a rotor of a rotorcraft, said fairing comprising a cap held to the end of the head of the rotor, and also comprising at least one air deflector member secured to said cap, wherein said air deflector member is a ring having the same axis of rotation as the rotor and the cap, wherein said ring is secured to the cap via at least three spacers, and wherein the height of each said spacer has a value lying in the range 3% to 10% of the diameter Ø of the cap.
2. A fairing according to claim 1 , wherein the width of said air deflector member has a value lying in the range 10% to 20% of the diameter Ø of the cap.
3. A fairing according to claim 1 , wherein said ring has a thin profile.
4. A fairing according to claim 3 , wherein said thin profile is flat.
5. A fairing according to claim 3 , wherein said thin profile is curved.
6. A fairing according to claim 1 , wherein said ring has a thick profile.
7. A fairing according to claim 6 , wherein said thick profile is symmetrical.
8. A fairing according to claim 6 , wherein said thick profile is dissymmetric.
9. A fairing according to claim 6 , wherein said thick profile has a rounded leading edge and an angular trailing edge.
10. A fairing according to claim 6 , wherein said thick profile has a leading edge and a trailing edge that are rounded.
11. A fairing according to claim 6 , wherein said thick profile has a leading edge that is angular and a trailing edge that is rounded.
12. A fairing according to claim 1 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is equal to said second distance.
13. A fairing according to claim 1 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is greater than said second distance.
14. A fairing according to claim 1 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is less than said second distance.
15. A fairing arranged on a rotor of a rotorcraft, said fairing comprising a cap held to the end of the head of the rotor, and also comprising at least one air deflector member secured to said cap, wherein the width of said air deflector member has a value lying in the range 10% to 20% of the diameter Ø of the cap.
16. A fairing according to claim 15 , wherein said air deflector member is a ring having the same axis of rotation as the rotor and the cap.
17. A fairing according to claim 16 , wherein said ring is secured to the cap via at least three spacers.
18. A fairing according to claim 16 , wherein said ring has a thin profile.
19. A fairing according to claim 18 , wherein said thin profile is flat.
20. A fairing according to claim 18 , wherein said thin profile is curved.
21. A fairing according to claim 16 , wherein said ring has a thick profile.
22. A fairing according to claim 21 , wherein said thick profile is symmetrical.
23. A fairing according to claim 21 , wherein said thick profile is dissymmetric.
24. A fairing according to claim 21 , wherein said thick profile has a rounded leading edge and an angular trailing edge.
25. A fairing according to claim 21 , wherein said thick profile has a leading edge and a trailing edge that are rounded.
26. A fairing according to claim 21 , wherein said thick profile has a leading edge that is angular and a trailing edge that is rounded.
27. A fairing according to claim 16 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is equal to said second distance.
28. A fairing according to claim 16 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is greater than said second distance.
29. A fairing according to claim 16 , wherein the leading edge of said ring is spaced apart from the cap by a first distance, the trailing edge of said ring is spaced apart from the cap by a second distance, and said first distance is less than said second distance.