Single-winding multi-stage scroll expander
US6922999B2 · kind B2 · utility
20Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C21/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A single-winding multi-stage expander comprises a fixed scroll and an orbiting scroll which revolves eccentrically with respect to the fixed scroll so as to pressurize a sealed chamber formed between the two scrolls to drive a crankshaft. A high-temperature pressurized gas is introduced into a first-stage inner division and sent to an external heater. The heated gas is sent back to a second-stage outer division of the expander to significantly increase efficiency thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.