F01D 5/026
Shaft to shaft connections
Official title: {Shaft to shaft connections}
F01D5/026 (Shaft to shaft connections) appears on 381 US grants and 388 published applications in this corpus.
Search patents in F01D- Granted patents
- 381
- Published applications
- 388
- Assignees
- 105
- Inventors
- 853
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 5 |
| 2004 | 2 | 4 |
| 2005 | 4 | 7 |
| 2006 | 4 | 8 |
| 2007 | 4 | 12 |
| 2008 | 4 | 14 |
| 2009 | 11 | 7 |
| 2010 | 11 | 10 |
| 2011 | 9 | 13 |
| 2012 | 7 | 18 |
| 2013 | 5 | 21 |
| 2014 | 9 | 20 |
| 2015 | 18 | 26 |
| 2016 | 14 | 20 |
| 2017 | 11 | 27 |
| 2018 | 24 | 28 |
| 2019 | 34 | 26 |
| 2020 | 32 | 23 |
| 2021 | 23 | 23 |
| 2022 | 20 | 18 |
| 2023 | 29 | 19 |
| 2024 | 24 | 11 |
| 2025 | 17 | 15 |
| 2026 | 14 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Center tie rotor annular seal11 Aug 2026US 12,704,073 B2Rtx Corporation
- Rotor arrangement for a low-pressure turbine of a turbomachine30 Jun 2026US 12,669,057 B2MTU Aero Engines AG
- Hydraulic piston with embedded linear variable differential transducer for precision position sensing23 Jun 2026US 12,661,744 B2Rtx Corporation
- Method and apparatus for impeller retention during assembly of a turbine engine16 Jun 2026US 12,655,776 B1Pratt & Whitney Canada Corp.
- Center tie rotor seal26 May 2026US 12,637,953 B1Rtx Corporation
- Hybrid rotor arrangement for a gas turbine engine architecture1 Oct 2026US 2026/0298093 A1General Electric Company
- Gas turbine engine with shaft retention system and method of inspecting using the shaft retention system9 Jul 2026US 2026/0193987 A1Pratt & Whitney Canada Corp.
- Oblong turbine25 Jun 2026US 2026/0176975 A1
- Hydraulic piston with embedded linear variable differential transducer for precision position sensing18 Jun 2026US 2026/0166665 A1Rtx Corporation
- Seal runner locking structure11 Jun 2026US 2026/0160174 A1Rtx Corporation
Most cited
By later US patents
- Coupling system for a planetary gear train525US 5,433,674 AUnited Technologies Corporation · 1995
- Thermally insulating turbine coupling88US 8,840,359 B2The United States of America as represented by the Secretary of the Navy · 2014
- Shaft coupling66US 4,043,146 AMotoren- und Turbinen-Union Muenchen GmbH M.A.N. Maybach Mercedes-Benz · 1977
- Low speed rotor shaft for a small twin spool gas turbine engine47US 7,665,293 B2Florida Turbine Technologies, Inc. · 2010
- Rotating seal for gas turbine engine38US 4,645,424 AUnited Technologies Corporation · 1987