Concentric crossflow recuperator for stirling engine
US4085588A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A Stirling engine adapted to automotive propulsion is disclosed using an improved preheater construction in the external heating circuit. The preheater construction is comprised of a concentric toroid placed about the heater tube array, the inner cylindrical wall of the ring serving as a wall to define the heating chamber for the closed working fluid circuit. The concentric ring is totally ceramic with alternating orientation of finned ceramic walls fused together to define a cross-flow matrix. Static seal rings of woven ceramic material encased in folded metal foil are retained along the annular edges of at least the upper and lower faces of the concentric toroid to facilitate cross-flow fluid connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.