| 摘要 |
The reciprocating motion that is provided when long arrays of wires of shape memory metal alloys are made to repeatedly change in length by means of repeated temperature alternations is made to occur more efficiently and more rapidly by means of a system that contacts first heated then cooled liquid in repeated alternations to the wire array by means of a unique liquid flow pattern in which the contacting of the liquid to the wires is made to occur virtually simultaneously to all increments of the length of each wire with the flow pattern being provided by an alternating displacement from one then the other of two horizontal cylinders parallel to a cylinder containing the wire array with the displacement of the liquid from the cylinders taking place by means of air pressure over the liquid in such a manner that first hot liquid from one cylinder and then cooled liquid from another cylinder is displaced into the cylinder containing the wire array by means of multiple ducts along the lengths of the cylinders which ducts connect the cylinder of hot liquid and the cylinder of cooled liquid to the cylinder with the wire array. In different embodiments different timing means are used to provide for the displacement of the liquid onto the wires and then for a period of removal of liquid from the wires and then for contacting the wires with the other liquid of alternate temperature and then its removal and so on.
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