Wear resistant coatings to reduce ice adhesion on air foils

An adhesion and coating technology, applied in the field of wear-resistant coatings, can solve problems such as inability to protect the surface

Inactive Publication Date: 2007-01-31
THE TIMKEN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing deicing techniques require frequent reapplication of special fluids or surfactants (e.g. liquid chemicals / antifreeze sprays) which help deicing for short periods of time but ultimately do not protect the underlying surface

Method used

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  • Wear resistant coatings to reduce ice adhesion on air foils

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Embodiment Construction

[0009] The following detailed description illustrates the invention by way of example and not limitation. This description clearly enables one skilled in the art to make and use the invention, and illustrates several embodiments, adaptations, variations, substitutions and uses of the invention, including what we presently believe is the best mode of the invention. Furthermore, it is to be understood that the application of the invention is not limited to the exact details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

[0010] We plan to use a solid abradable coating 10 on the airfoil surface 12 to protect the underlying surface from abrasion (eg, co...

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Abstract

A hard, wear resistant and ice-phobic coating ( 10 ) can be applied to an air foil surface ( 12 ) in a single application to enhance the deicing of the surface. The coating includes a functional top layer ( 14 ) which is harder than the air foil surface and has high contact angle with water. The functional layer contains carbon (>35 atomic %) and hydrogen (0-40 atomic %) in a diamond-like carbon, glassy, or amorphous configuration, as well as incorporated silicon and oxygen (0.1-40 atomic % each).

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to US Serial No. 60 / 451,439 filed March 3,2003. technical field [0003] The present invention relates to abradable coatings, and in particular, to a coating that is hydrophobic, icephobic, and capable of being applied to airfoils to reduce ice adhesion on the airfoils. Background technique [0004] An "airfoil" is defined as any surface designed to act against the air it moves through, such as the leading edges and surfaces of wings and propellers. "Wings" may also include the fuselage of an aircraft. [0005] Ice on the airfoil changes the shape of the airfoil surface, adversely affecting the aerodynamics of the airfoil. Therefore, in any situation where an aircraft has or will encounter icing conditions, it is necessary to clean or otherwise treat the airfoil surfaces prior to flight. Existing deicing techniques require frequent reapplication of special fluids o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00B64D15/00C23C16/02C23C16/30
CPCC23C28/048C23C14/0605B64D15/00C23C16/0272C23C16/30C23C28/044C23C16/26C23C28/046Y10T428/24942Y10T428/30
Inventor G·L·多尔R·D·埃文斯E·P·库克
Owner THE TIMKEN CO
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