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특허 상세정보

Ice shed reduction for leading edge structures

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/00    B64C-001/38   
미국특허분류(USC) 244/200.1; 244/130
출원번호 US-0112733 (2008-04-30)
등록번호 US-8245981 (2012-08-21)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Clement, David J.
인용정보 피인용 횟수 : 3  인용 특허 : 16
초록

A leading edge structure for use in an aerospace vehicle includes a body having a flowpath surface which defines a leading edge adapted to face an air flow during operation, and an opposed inner surface. The body is segmented into a plurality of portions having varying thermal properties and/or mechanical discontinuities, so as to promote stress concentrations in ice attached to the flowpath surface.

대표
청구항

1. A leading edge structure for use in an aerospace vehicle, comprising: (a) annular body of said aerospace vehicle having a flowpath surface which defines a leading edge adapted to face an air flow during operation; and(b) a plurality of spaced-apart grooves formed in the flowpath surface, wherein a spacing between the grooves is substantially greater than a width of the grooves, the grooves adapted to promote stress concentrations in ice attached to the flowpath surface. 2. The leading edge structure of claim 1 wherein the grooves are curved so as to b...

이 특허에 인용된 특허 (16)

  1. Schultz Peter G. ; Gallop Mark A.. Antibody-mediated reduction of .alpha.-ketoamides. USP1998065763249.
  2. Grose Ronald D. (Omaha NE). Cascaded micro-groove aerodynamic drag reducer. USP1987034650138.
  3. F. Conrad Greer. Catalyzed compositions and methods for use in vehicle surface anti-icing and other applications. USP2002036362135.
  4. Mosser Mark F. ; Greaser James H.. Coating for aerospace aluminum parts. USP2001016171704.
  5. Yoshida, Mitsunori; Kobayashi, Katsuo; Sawai, Takeshi. Composition for member preventing accretion of snow or ice and member preventing accretion of snow or ice using the same. USP2004126835322.
  6. Nelson ; Michael E.. Gas turbine engine with anti-icing facility. USP1978124129984.
  7. Blackwelder Ron F. (30531 Rue Langlois Rancho Palos Verdes CA 90274) Gad-el-Hak Mohamed (15275 Hunting Ridge Trail Granger IN 46530). Method and apparatus for reducing turbulent skin friction. USP1990064932612.
  8. Byrd,Norman R.; Keener,Steven G.. Method and composition for sealing components and components sealed thereby. USP2007047202321.
  9. Falcimaigne Jean,FRX ; Palermo Thierry,FRX ; Rojey Alexandre,FRX. Modified surface for reducing the turbulences of a fluid and transportation process. USP2001026193191.
  10. Smith John Ralph ; Garti Nissim N.,ILX. Non-stick polymer-coated articles of manufacture, and process and coatings for the production thereof. USP2000076084020.
  11. Byrd, Norman R.; Keener, Steven G.; Lally, Edward David; Peralta, Cesare. Polysiloxane coatings for surfaces. USP2004106809169.
  12. Byrd, Norman R.. Polysiloxane(amide-ureide) anti-ice coating. USP2004096797795.
  13. LaRoche Ulrich,CHX ; La Roche Hans Lucas,CHX. Process for forming a surface for contact with a flowing fluid and body with such surface regions. USP2000076092766.
  14. Smith John Ralph ; Garti Nissim N.,ILX. Process for producing coated articles of manufacture. USP2000096120849.
  15. Gao Ge (Boca Raton FL). Surface for low drag in turbulent flow. USP1992055114099.
  16. Drews Hilbert F. P.. Surface modification apparatus and method for decreasing the drag or retarding forces created by fluids flowing across a. USP1999115988568.