Pressure wave machine operating as pressure exchanger, in particular for use as the high-pressure compressor for gas turbines
US4679393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Sep 26, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C3/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure exchanger, preferably usable as a high-pressure compressor for gas turbine installations, has a multiplicity of coaxial cell rotors which can be driven in the same direction, and a central pressure exchanger combustion chamber located within the innermost cell rotor. Driving gases generated in the combustion chamber flow through the cell rotors in series from inside to outside and can be expanded as low pressure driving gases in the low pressure part of the turbine. The air to be compressed flows through the cell rotors in series from the outermost cell rotor towards the inside. A part of the air mass flow compressed to the final pressure, which part is greater than the driving gas mass flow, arrives as combustion air in the pressure exchanger combustion chamber; the other part of the air can be used as combustion air for a turbine combustion chamber, which generates high pressure driving gas for the gas turbine. The inlet and outlet cross-sections of the driving gas and air ports in the control casings are so designed that the closing edge of the low pressure air port viewed in the rotational direction of the cell rotor, is located before the closing edge of the low pre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.