Gas turbines with multiple gas flow paths
US8161728B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2007 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 17, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K3/077
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A representative gas turbine includes: a high pressure spool; a high pressure compressor; a high pressure turbine mechanically coupled to the high pressure spool; a lower pressure spool; a lower pressure turbine mechanically coupled to the lower pressure spool; a fan having a first set of fan blades and a second set of fan blades, the second set of fan blades being located downstream of the first set of fan blades and being operative to rotate at a rotational speed corresponding to a rotational speed of the lower pressure spool; and a gear assembly mechanically coupled to the lower pressure spool and engaging the first set of fan blades such that rotation of the lower pressure spool rotates the first set of fan blades at a lower rotational speed than the rotational speed of the second set of fan blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.