Title:
BLADE STRUCTURE, AIRCRAFT BLADE, AND WIND TURBINE BLADE
Document Type and Number:
Japanese Patent JP2016028953
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blade structure capable of appropriately preventing icing in an environment exposed to high-speed overcooling water droplets.SOLUTION: On a surface of an aircraft blade, a surface of a blade front edge portion predicted to be collided by high-speed overcooling water droplets at times of take-off and landing is formed as a non-water repellent region having a low surface roughness, and a super-water repellent paint is coated on the other surface regions. The non-water repellent region is heated by an electrothermal heater, whereby ice nuclei generated in the blade front edge portion are molten without being grown to icing, repelled by a water repellent structure of the blade surface subsequent to the blade front edge portion in a blade chord direction, and scattered and eliminated.SELECTED DRAWING: Figure 1
Inventors:
KIMURA SHIGEO
KOJIMA TETSUYA
ONOMA KEI
KOJIMA TETSUYA
ONOMA KEI
Application Number:
JP2015186978A
Publication Date:
March 03, 2016
Filing Date:
September 24, 2015
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
B64D15/00; F03D80/00
Domestic Patent References:
| JPH11181830A | 1999-07-06 | |||
| JP2005177697A | 2005-07-07 | |||
| JP2001259513A | 2001-09-25 | |||
| JP2006514190A | 2006-04-27 | |||
| JP2004017878A | 2004-01-22 | |||
| JP2008137445A | 2008-06-19 | |||
| JP2009298198A | 2009-12-24 |
Foreign References:
| WO2008087861A1 | 2008-07-24 | |||
| US20060115362A1 | 2006-06-01 | |||
| US5921501A | 1999-07-13 |
Other References:
小島徹也 外４名: "加熱法による着氷防止策にあたえる表面性状改質の効果", 雪氷研究大会講演要旨集, vol. Vol.2008, JPN6015030172, 5 September 2008 (2008-09-05), JP, pages 1 - 9
Attorney, Agent or Firm:
Takehiko Yamada