Gas separated cycling of SMA/NTE bundles in a fluid environment for power production cycle or heat pump cycles
US11852125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jul 11, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03G7/0641
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides an energy recovery system comprising a plurality of Shape-Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged to define a core and housed in an immersion chamber. A first fluid is introduced into the chamber and provides a first temperature change to activate the core from a first state to a second state and a second fluid is introduced at a second temperature to activate the core from the second state to the first state. A gas is inserted into the chamber between the first fluid and the second fluid. The advantage of the invention is that increased efficiency and power production from the SMA/NTE engine is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.