F01D 5/085
Cooling fluid circulating inside the rotor
Official title: {cooling fluid circulating inside the rotor}
F01D5/085 (Cooling fluid circulating inside the rotor) appears on 448 US grants and 410 published applications in this corpus.
Search patents in F01D- Granted patents
- 448
- Published applications
- 410
- Assignees
- 98
- Inventors
- 947
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 4 |
| 2002 | 12 | 9 |
| 2003 | 8 | 5 |
| 2004 | 6 | 6 |
| 2005 | 6 | 8 |
| 2006 | 7 | 3 |
| 2007 | 3 | 7 |
| 2008 | 2 | 8 |
| 2009 | 3 | 14 |
| 2010 | 6 | 17 |
| 2011 | 10 | 13 |
| 2012 | 16 | 27 |
| 2013 | 13 | 18 |
| 2014 | 22 | 20 |
| 2015 | 20 | 17 |
| 2016 | 11 | 37 |
| 2017 | 16 | 34 |
| 2018 | 24 | 35 |
| 2019 | 35 | 30 |
| 2020 | 52 | 20 |
| 2021 | 27 | 25 |
| 2022 | 22 | 12 |
| 2023 | 18 | 10 |
| 2024 | 9 | 10 |
| 2025 | 15 | 15 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ultra-micro gas turbine generator15 Sep 2026US 12,736,007 B2
- Center tie rotor annular seal11 Aug 2026US 12,704,073 B2Rtx Corporation
- High efficiency power production methods, assemblies, and systems14 Jul 2026US 12,680,454 B28 Rivers Capital, LLC
- Accessible debris separator for high pressure turbine outside diameter fed static components9 Jun 2026US 12,650,092 B2Rtx Corporation
- Center tie rotor seal26 May 2026US 12,637,953 B1Rtx Corporation
- High efficiency power production methods, assemblies, and systems1 Oct 2026US 2026/0298097 A18 Rivers Capital, LLC
- Expander and method of manufacturing24 Sep 2026US 2026/0286848 A1Nuovo Pignone Tecnologie Srl
- Turbine engine with a blade assembly having cooling conduits21 May 2026US 2026/0139596 A1General Electric Company
- Turbine engine with a blade assembly having cooling conduits21 May 2026US 2026/0139597 A1General Electric Company
- Intermediate shaft cover, and gas turbine provided with same16 Apr 2026US 2026/0103991 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Evaporatively cooled rotor for a gas turbine engine345US 5,857,836 AAerodyne Research, Inc. · 1999
- Turbocharging system with integral assisting electric motor and cooling system therefor107US 5,605,045 ATurbodyne Systems, Inc. · 1997
- Turbine disk interstage seal system96US 5,236,302 AGeneral Electric Company · 1993
- Closed or open circuit cooling of turbine rotor components86US 5,593,274 AGeneral Electric Company · 1997
- Gas turbine compressor spool with structural and thermal upgrades72US 6,267,553 B12001