Research and development of a metal hydride actuator for assistive devices driven without power supply.

金属氢化物(MH)致动器通过施加氢气压力转变来提供机械功，氢气压力转变源于MH合金在吸收和解吸氢气时的可逆反应。在适当的反应时间内，LaNi5基MH合金的某一组分可以利用太阳热或剩余热水进行大量的放氢，并通过自然空气冷却提供大量的吸氢。为了提高空气压缩机的运行速度和控制性能，提出了一种利用太阳能或余热驱动MH驱动器的往复式空压机。这些发现支持了MH执行器在没有电力或化石燃料能源消耗的情况下运行的有效性。

A metal hydride (MH) actuator provides mechanical work by applying the hydrogen pressure transition that originates from the reversible reaction of the MH alloy as it absorbs and desorbs hydrogen gas. A certain composition of a LaNi_5-based MH alloy can provide a large amount of hydrogen desorption using solar heat or surplus heated water and a large amount of hydrogen absorption by natural air cooling in an adequate reaction time. To improve the moving speed and to control the performance, a reciprocating air compressor that applies this solar or surplus heat-driven MH actuator is proposed. These findings support the efficacy of an MH actuator operating without electric or fossil fuel energy consumption.