Wing and anti-icing system

Patent metadata

Field	Value
Publication number	US-10351247-B2
Application number	US-201615172014-A
Country	US
Kind code	B2
Filing date	Jun 2, 2016
Priority date	Jun 15, 2015
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A mixed coating material includes: a cold curing resin that undergoes reaction curing at normal room temperature; and a particulate fluororesin. The constituent ratio of the particulate fluororesin in a coating film that is a cured state of the mixed coating material is 43 wt % or more and 82 wt % or less. A wing includes a non-water-repellent coating film that forms an outermost layer in a water droplet impact region in a leading edge portion of the wing; and a water-repellent coating film that is formed of the mixed coating material and that forms an outermost layer in a water-repellent region adjacent to the water droplet impact region P. An anti-icing system includes the wing and a heating unit that heats the water droplet impact region.

First claim

The invention claimed is:

1. A wing, comprising:
a non-water-repellent coating film that forms an outermost layer in a water droplet impact region in a leading edge portion of the wing; and
a water-repellent coating film that includes a mixed coating material and that forms an outermost layer in a water-repellent region adjacent to the water droplet impact region,
wherein the mixed coating material comprises:
a cold curing resin that undergoes reaction curing at a normal room temperature; and
a particulate fluororesin,

wherein a constituent ratio of the particulate fluororesin in a coating film that is a cured state of the mixed coating material is 43 wt % or more and 82 wt % or less,
wherein the non-water-repellent coating film extends from the water droplet impact region to the water-repellent region, and
wherein the water-repellent coating film is disposed on the non-water-repellent coating film in the water-repellent region.

2. The wing according to claim 1 , wherein the particulate fluororesin comprises a tetrafluoroethylene resin.

3. The wing according to claim 1 , wherein the cold curing resin comprises a fluororesin.

4. The wing according to claim 2 , wherein the cold curing resin comprises a fluororesin.

5. The wing according to claim 1 , wherein the particulate fluororesin has an average particle size of less than 1.5 μm.

6. The wing according to claim 2 , wherein the particulate fluororesin has an average particle size of less than 1.5 μm.

7. The wing according to claim 1 , wherein the particulate fluororesin has an average particle size of less than 1.0 μm.

8. The wing according to claim 2 , wherein the particulate fluororesin has an average particle size of less than 1.0 μm.

9. An anti-icing system comprising:
the wing according to claim 1 ; and
a heater that heats the water droplet impact region.

10. An anti-icing system comprising:
the wing according to claim 2 ; and
a heater that heats the water droplet impact region.

11. An anti-icing system comprising:
the wing according to claim 3 ; and
a heater that heats the water droplet impact region.

12. An anti-icing system comprising:
the wing according to claim 4 ; and
a heater that heats the water droplet impact region.

13. The anti-icing system according to claim 9 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.

14. The anti-icing system according to claim 10 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.

15. The anti-icing system according to claim 11 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.

16. The anti-icing system according to claim 12 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.

Assignees

• Fuji Heavy Ind Ltd
• Subaru Corp

Inventors

• Tanaka Taro
• Yoshida Takeshi

Classifications

• C09D133/00

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers · CPC title

• C08L2205/02

  containing two or more polymers of the same C08L -group · CPC title

• C08L2666/04

  Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof · CPC title

• C09K3/185

  Thawing materials · CPC title

• C09D127/18

  Homopolymers or copolymers of tetrafluoroethene · CPC title