IP Library Granted Patent US 9,056,684
Granted Patent B2
US 9,056,684 · App. 13/422,599 · Granted Jun 16, 2015

Rotor blade de-icing system

Inventors: James M. McCollough (Arlington, TX); Roger Aubert (Arlington, TX)
Assignee: Textron Innovations Inc.
B64D15/12H05B6/80
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Quick Facts
Patent No.
US 9,056,684
App. No.
13/422,599
Granted
Jun 16, 2015
Kind
B2
Abstract

An aircraft includes a heat absorbent material carried by an airfoil susceptible to ice buildup and a transmitter spaced apart from the heat absorbent material. A method includes the process of transmitting the heat energy from the transmitter to the heat absorbent material that in turn warms the airfoil to break apart ice buildup.

Claims (24)

1. An aircraft, comprising:

an airfoil susceptible to an ice buildup;

a heat absorbent material carried by the airfoil, the heat absorbent material, having:

a first heat absorbent material secured to a suction surface of the airfoil;

a second heat absorbent material secured to a pressure surface of the airfoil; and

a port extending a length of the second heat absorbent material;

wherein a portion of the heat energy passes through the port and is absorbed by the first heat absorbent material;

a transmitter for transmitting heat energy to the heat absorbent material;

a control system operably associated with the transmitter; and

a sensor for detecting the presence of the airfoil as the airfoils passes over the sensor and, wherein the heat absorbent material absorbs the heat energy that in turn warms the airfoil and breaks apart ice buildup formed thereon.

2. The aircraft of claim 1 , the control system comprising:

a second sensor for detecting the ice buildup;

wherein upon detection of the ice buildup, the second sensor relays the sensed information to the control system, which in turn activates the transmitter.

3. The aircraft of claim 2 , wherein the second sensor detects conditions likely to create the ice buildup.

4. The aircraft of claim 1 , further comprising:

a heat conductor conductively coupling the first heat absorbent material to the second heat absorbent material;

wherein the heat conductor transfers the heat energy from the second heat absorbent material to the first heat absorbent material.

5. The aircraft of claim 1 , wherein the heat absorbent material is disposed within the thickness of the airfoil.

6. The aircraft of claim 1 , wherein:

the aircraft is a helicopter; and

the airfoil is a rotor blade of the helicopter.

7. The aircraft of claim 1 , wherein:

the transmitter transmits microwave energy; and

the heat absorbent material absorbs microwave energy.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ORIGINAL ASSIGNMENT PREVIOUSLY RECORDED AT REEL: 030891 FRAME: 0135. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 16, 2021
From: BELL HELICOPTER TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 056893/0946 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2013
From: BELL HELICOPTER TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 030891/0135 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 19, 2012
From: MCCOLLOUGH, JAMES M.; AUBERT, ROGER
To: BELL HELICOPTER TEXTRON INC.
Reel/Frame 027884/0069 →
Continuity (2)
Provisional Application 61473189 · Apr 8, 2011
Related Publication 20120256053A1 · Oct 11, 2012