Method and device for converting heat into mechanical work
US7748220B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 18, 2004 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Nov 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/46
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A novel method converts heat into mechanical work. In a cyclic process, a working medium is compressed while giving off heat and it is subsequently brought in thermal contact with the surroundings via a first heat exchanger. Then it is expanded while obtaining mechanical work, whereupon the cyclic process is run through once more. A high degree of efficiency is achieved by virtue of the fact that the working medium, after expansion, is guided through another heat exchanger, which is situated inside a rapidly rotating rotor and which, on the exterior thereof, is surrounded by at least one substantially annular gas space from whose exterior heat is dissipated. There is also disclosed a device for carrying out the novel method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.