F02B 19/14
Engines characterised by precombustion chambers: with compression ignition
Official title: with compression ignition
F02B19/14 (Engines characterised by precombustion chambers: with compression ignition) appears on 142 US grants and 70 published applications in this corpus.
Search patents in F02B- Granted patents
- 142
- Published applications
- 70
- Assignees
- 83
- Inventors
- 273
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 10 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 3 | 5 |
| 2006 | 3 | 0 |
| 2007 | 1 | 3 |
| 2008 | 3 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 4 |
| 2014 | 2 | 2 |
| 2015 | 3 | 5 |
| 2016 | 5 | 5 |
| 2017 | 4 | 1 |
| 2018 | 1 | 4 |
| 2019 | 2 | 3 |
| 2020 | 4 | 4 |
| 2021 | 8 | 6 |
| 2022 | 4 | 6 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diesel engine6 Jan 2026US 12,516,645 B2Kubota Corporation
- Electronic fuel injection type diesel engine10 Sep 2024US 12,085,010 B2Kubota Corporation
- Method for operating an internal combustion engine26 Dec 2023US 11,852,096 B2Man Truck & Bus AG
- Active pre-chamber jet-assisted H2 multi-mode combustion28 Nov 2023US 11,828,220 B1Saudi Arabian Oil Company
- Systems and methods of compression ignition engines21 Mar 2023US 11,608,773 B2Nautilus Engineering, LLC
- Engine system employing air jet injection for limiting plume-plume interaction of combusting fuel spray plumes10 Sep 2026US 2026/0266212 A1Caterpillar Inc.
- Air/steam engine and use thereof25 Dec 2025US 2025/0389237 A1
- Prechamber-type engine4 Dec 2025US 2025/0369388 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Diesel engine16 Jan 2025US 2025/0020088 A1Kubota Corporation
- Electronic fuel injection type diesel engine8 Feb 2024US 2024/0044283 A1Kubota Corporation
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control152US 6,230,683 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control139US 6,286,482 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control57US 6,915,776 B2Cummins Inc. · 2005
- Turbulent jet ignition pre-chamber combustion system for spark ignition engines51US 8,857,405 B2Mahle Powertrain Ltd. · 2014