F02B 19/08
The chamber being of air-swirl type
Official title: the chamber being of air-swirl type
F02B19/08 (The chamber being of air-swirl type) appears on 117 US grants and 74 published applications in this corpus.
Search patents in F02B- Granted patents
- 117
- Published applications
- 74
- Assignees
- 57
- Inventors
- 196
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 4 |
| 2014 | 0 | 5 |
| 2015 | 3 | 4 |
| 2016 | 2 | 6 |
| 2017 | 8 | 3 |
| 2018 | 4 | 5 |
| 2019 | 6 | 2 |
| 2020 | 3 | 7 |
| 2021 | 7 | 6 |
| 2022 | 8 | 7 |
| 2023 | 11 | 8 |
| 2024 | 3 | 2 |
| 2025 | 3 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing engine6 Jan 2026US 12,516,621 B2Subaru Corporation
- Diesel engine6 Jan 2026US 12,516,645 B2Kubota Corporation
- Pre-chamber assembly21 Oct 2025US 12,448,913 B2Innio Jenbacher GmbH & Co OG
- Predictive model-based spark control18 Feb 2025US 12,228,068 B1Prometheus Applied Technologies, LLC
- Ruggedized and integrated hybrid generators and related methods7 Jan 2025US 12,188,400 B2
- Engine26 Mar 2026US 2026/0085629 A1Yanmar Holdings Co., Ltd.
- Method of producing engine18 Dec 2025US 2025/0382910 A1Subaru Corporation
- Prechamber-type engine4 Dec 2025US 2025/0369388 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Diesel engine16 Jan 2025US 2025/0020088 A1Kubota Corporation
- Pre-chamber assembly27 Jun 2024US 2024/0209769 A1Innio Jenbacher GmbH & Co OG
Most cited
By later US patents
- Operation control system for internal combustion engine138US 4,993,386 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1991
- Swirl chamber used in association with a combustion chamber for diesel engines47US 6,899,076 B2Kubota Corporation · 2005
- Pre-chamber spark plug41US 7,659,655 B2Woodward Governor Company · 2010
- Swirl flow precombustion chamber40US 5,555,867 ACooper Cameron Corporation · 1996
- Pre-chamber spark plug34US 7,922,551 B2Woodward, Inc. · 2011