Electric heating – Heating devices – Combined with diverse-type art device
Patent
1994-06-06
1997-11-11
Walberg, Teresa J.
Electric heating
Heating devices
Combined with diverse-type art device
219528, 219549, 244134D, H05B 334
Patent
active
056860030
ABSTRACT:
A new deicing technology is described which utilizes the actuating properties of shape memory alloys (SMAs) to debond ice accretion formed on a surface. A thin sheet of SMA material is mounted to the icing prone surface to perform the force and displacement combination that can debond the ice. The SMA sheet is activated to expand or contract causing shearing and peeling of the ice. An SMA actuator portion located aft of the icing area can be used to pull the sheet over a ribbed underlay and grooved bands which generates a strain field that severs the ice's adhesive bond. Two-way shape memory action and natural ice latent heat powering are used in different modes of operation to reduce the power requirements and the structural complexity of the deicing system.
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Gerardi Joseph J.
Ingram Richard B.
Innovative Dynamics, Inc.
Valencia Raphael
Walberg Teresa J.
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