Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
Sharp memory alloy (SMA) is one of the functional material which shows the shape memory effect and superelasticities. Since the shape recovery temperature of Ti-Ni system SMA is below at 373K, this alloy is expected the element of heat-engine driven by low-temperature thermal of energy. Previous SMA heat-engines have not became commonplace because of short product life. Last year, we reported the planetary geared type SMA heat-engine using SMA spiral spring actuator. This heat-engine targeted an improvement life cycle of SMA and reduction mechanism. However, spiral spring actuator did not operate by the energy of hot water when this engine was soused a hot water, for this type actuator was low output power. Therefore, we attempt to use SMA coil spring element for improving the planetary geared type SMA heat-engine. In this research, we investigated the operating characteristic of planetary geared type SMA heat-engine using SMA coil spring element.
