F04D 29/266
Mounting compressor rotors on shafts
Official title: {mounting compressor rotors on shafts}
F04D29/266 (Mounting compressor rotors on shafts) appears on 233 US grants and 258 published applications in this corpus.
Search patents in F04D- Granted patents
- 233
- Published applications
- 258
- Assignees
- 130
- Inventors
- 617
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 3 |
| 2003 | 2 | 1 |
| 2004 | 0 | 7 |
| 2005 | 2 | 13 |
| 2006 | 7 | 3 |
| 2007 | 4 | 5 |
| 2008 | 4 | 4 |
| 2009 | 1 | 3 |
| 2010 | 3 | 5 |
| 2011 | 2 | 6 |
| 2012 | 3 | 8 |
| 2013 | 1 | 10 |
| 2014 | 5 | 10 |
| 2015 | 7 | 23 |
| 2016 | 9 | 29 |
| 2017 | 12 | 12 |
| 2018 | 15 | 14 |
| 2019 | 24 | 28 |
| 2020 | 21 | 12 |
| 2021 | 17 | 13 |
| 2022 | 16 | 10 |
| 2023 | 15 | 14 |
| 2024 | 17 | 12 |
| 2025 | 7 | 9 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for impeller retention during assembly of a turbine engine16 Jun 2026US 12,655,776 B1Pratt & Whitney Canada Corp.
- Centrifugal compressor impeller with nonlinear backwall28 Apr 2026US 12,612,923 B1Ingersoll-Rand Industrial U.S., Inc.
- Coupling joints to interconnect and transmit rotational torque between adjacent impeller bodies in a turbomachine30 Dec 2025US 12,510,094 B1Siemens Energy Global GmbH & Co. KG
- Turbo-type fluid machine and refrigeration apparatus25 Nov 2025US 12,480,514 B2Daikin Industries, Ltd.
- Regenerative multi-stage compressor21 Oct 2025US 12,448,977 B2
- Centrifugal compressor impeller with nonlinear backwall13 Aug 2026US 2026/0235138 A1
- Centrifugal compressor impeller with nonlinear backwall30 Apr 2026US 2026/0117788 A1Ingersoll-Rand Industrial U.S., Inc.
- Rotor, rotary machine, and method for assembling rotor5 Mar 2026US 2026/0063136 A1Mitsubishi Heavy Industries Compressor Corporation
- Coupling joints to interconnect and transmit rotational torque between adjacent impeller bodies in a turbomachine1 Jan 2026US 2026/0002546 A1Siemens Energy Global GmbH & Co. KG
- Multi-stage compressor27 Nov 2025US 2025/0361870 A1MAN Energy Solutions SE
Most cited
By later US patents
- Turbocharger integrated bearing system81US 6,017,184 AAllied-Signal Inc. · 2000
- Composite impeller wheel with improved centering of one component on the other44US 4,183,719 AMaschinenfabrik Augsburg-Nurnberg Aktiengesellschaft (M.A.N.) · 1980
- Turbocharger compressor wheel assembly with boreless hub compressor wheel42US 4,986,733 AAllied-Signal Inc. · 1991
- Compressor wheel assembly for turbochargers39US 4,705,463 AThe Garrett Corporation · 1987
- Splineless coupling means34US 4,340,317 ANorthern Research & Engineering Corp. · 1982