| 摘要 |
An energy recovery device comprises an engine driven by first and second cores of Shape Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elements A, B. The SMA or NTE cores are housed in respective immersion chambers which are sequentially filled with fluid for heating and/or cooling of the NTE or SMA cores. The first and second cores are in communication with each other via an energy storage element such as a relaxation spring. This prevents overstraining of a core, as a cooling core cannot be forceably returned to its starting position until it is sufficiently relaxed to accept the transformation (e.g. as the phase changes from austenite to martensite). |
