SMA bundle wire optimisation in an energy recovery device
AssigneeExergyn Ltd.
InventorsRichard Blackburn, Barry Cullen, Kevin O'Toole
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Abstract
The invention provides an energy recovery device comprising a plurality of Shape Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged as a plurality of wires positioned substantially parallel with each other to define a core wherein the wires are selected to have different dimensions such that the plurality of wires are activated at substantially the same time in response to a temperature change.
Claims9
An energy recovery device comprising a plurality of Shape-Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged as a plurality of wires positioned substantially parallel with each other to define a core wherein the wires are selected to have different dimensions and the wires positioned towards the centre of the core have a smaller diameter than wires positioned near the outside of the core such that the plurality of wires are activated at substantially the same time in response to a temperature change.
A core for use in an energy recovery device, said core comprising a plurality of Shape-Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) wires positioned substantially parallel with each other and wherein the wires are selected to have different dimensions and the wires positioned towards the centre of the core have a smaller diameter than wires positioned near the outside of the core such that the plurality of wires are activated at substantially the same time in response to a temperature change.
A method of making an energy recovery device comprising a plurality of Shape-Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged as a plurality of wires positioned substantially parallel with each other to define a core comprising the step of selecting the plurality of wires to have different dimensions and positioning the plurality of wires so that the wires positioned towards the centre of the core have a smaller diameter than wires positioned near the outside of the core such that the plurality of wires are activated at substantially the same time in response to a temperature change.
Dependencies are inferred from the claim text.