US 12,276,266 B2
Engine operating using a compression SMA material
Mike Langan, Dublin (IE); Keith Warren, Dublin (IE); and Kevin O'Toole, Dublin (IE)
Assigned to EXERGYN LTD., Dublin (IE)
Appl. No. 18/276,419
Filed by EXERGYN LTD., Dublin (IE)
PCT Filed Feb. 11, 2022, PCT No. PCT/EP2022/053449
§ 371(c)(1), (2) Date Aug. 8, 2023,
PCT Pub. No. WO2022/171843, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 2101938 (GB), filed on Feb. 11, 2021.
Prior Publication US 2024/0309857 A1, Sep. 19, 2024
Int. Cl. F03G 7/06 (2006.01)
CPC F03G 7/0614 (2021.08) [F05C 2251/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An energy recovery device comprising:
an engine comprising a plurality of Shape Memory Alloy (SMA) elements or Negative Thermal Expansion (NTE) elements configured to define a core and connected to a drive mechanism;
an immersion chamber adapted for housing the engine and adapted to be sequentially filled with fluid to allow a heating cycle and a cooling cycle of the SMA elements or the NTE elements to expand and contract the SMA elements or the NTE elements; and
a compression device configured to apply a compressive mechanical force to at least one of the SMA elements or at least one of the NTE elements during the heating cycle and/or cooling cycle.