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Thermally-activated material assembly containing phase-change material and method for using same

A technology of phase change materials and components, applied in the direction of mechanical power generating mechanisms, machines/engines, mechanical equipment, etc.

Active Publication Date: 2014-11-26
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unlike plastic deformation due to dislocation motion and thus irreversible, deformation of martensitic SMA via detwinning mechanism does not involve dislocation motion or breaking of internal atomic bonds

Method used

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  • Thermally-activated material assembly containing phase-change material and method for using same
  • Thermally-activated material assembly containing phase-change material and method for using same
  • Thermally-activated material assembly containing phase-change material and method for using same

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Embodiment Construction

[0087] As required, specific embodiments of the present invention are disclosed herein. The disclosed embodiments are merely examples that may be embodied in various and alternative forms and combinations thereof. As used herein, for example, "exemplary" and similar terms may broadly refer to an embodiment that is an example, paradigm, model, or pattern.

[0088] The figures are not necessarily to scale and some features may be exaggerated or reduced, eg, to show details of particular components. In some instances, well-known components, systems, materials, or methods have not been described in detail in order to avoid obscuring the present invention. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0089] I. SUMMARY OF THE INVENTION

[0090] In various embodiments, th...

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PUM

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Abstract

The assembly (100) has a phase-change material (PCM) element (104) transitioning from a state to another state when heated to or above a phase-change temperature. A drive mechanism causes the PCM element to directly engage and disengage from a shape-memory alloy actuator element (102) when an actuator assembly is in a non-actuated condition and an actuated condition, respectively. A PCM sheath (106) surrounds a portion of the PCM element to contain the PCM element when the PCM element is in the latter state. The PCM element has a non-PCM forming a PCM thermal composite with the PCM element. The phase change material element is made of shape-memory alloy or shape-memory polymer.

Description

[0001] Related applications [0002] This patent application claims U.S. Patent Application No. 12 / 792,120 and 2009, filed June 3, 2010, entitled "ACCELERATING COOLING IN ACTIVE MATERIAL ACTUATORS USING HEAT SINKS" Priority to U.S. Patent Application No. 12 / 437,768, entitled "CONTROLLING HEAT TRANSFER IN ACTIVE MATERIAL ACTUATORS USING HEAT SINKS," filed May 8, and is a continuation in part thereof, the entire contents of which are hereby incorporated by reference. Background technique [0003] The present invention relates generally to thermal management of thermally activated active material assemblies, and more particularly to thermal management of thermally activated active material assemblies using phase change materials. [0004] background [0005] I. Shape memory alloy [0006] Shape memory alloys (SMAs) are the generic name given to alloys that exhibit the rare property of strain memory that can be induced mechanically or thermally. This rare property is mainly c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03G7/06
CPCF03G7/065
Inventor N·D·曼凯姆J·P·拉瓦尔
Owner GM GLOBAL TECH OPERATIONS LLC
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