F02B 19/108
With fuel injection at least into pre-combustion chamber, i.e. injector mounted directly
Official title: {with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber}
F02B19/108 (With fuel injection at least into pre-combustion chamber, i.e. injector mounted directly) appears on 264 US grants and 235 published applications in this corpus.
Search patents in F02B- Granted patents
- 264
- Published applications
- 235
- Assignees
- 113
- Inventors
- 478
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 5 |
| 2012 | 0 | 2 |
| 2013 | 0 | 5 |
| 2014 | 6 | 11 |
| 2015 | 4 | 12 |
| 2016 | 10 | 30 |
| 2017 | 21 | 18 |
| 2018 | 22 | 26 |
| 2019 | 21 | 15 |
| 2020 | 18 | 11 |
| 2021 | 25 | 15 |
| 2022 | 20 | 21 |
| 2023 | 18 | 17 |
| 2024 | 16 | 20 |
| 2025 | 10 | 6 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Passive prechamber fueling device and method1 Sep 2026US 12,723,537 B2Saudi Arabian Oil Company
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Systems, devices and methods for input and output pressure management of air breathing engine reformers10 Mar 2026US 12,570,526 B2M2X Energy Inc.
- Spray guided stratification for fueling a passive pre-chamber3 Mar 2026US 12,565,849 B2Saudi Arabian Oil Company
- Pre-chamber ignition system and procedure for an internal combustion engine3 Mar 2026US 12,565,850 B2Marelli Europe S.P.A.
- Ammonia pre-chamber internal combustion engine17 Sep 2026US 2026/0275900 A1Regents of the University of Minnesota
- Improvements relating to internal combustion engines3 Sep 2026US 2026/0258758 A1Commonwealth Scientific and Industrial Research Organisation
- Gas valve for an internal combustion engine23 Jul 2026US 2026/0210284 A1
- Passive prechamber fueling device and method23 Jul 2026US 2026/0210285 A1Aramco Services Company
- Spark plug9 Jul 2026US 2026/0196808 A1
Most cited
By later US patents
- Plasma jet ignition engine and method122US 4,203,393 AFord Motor Company · 1980
- Direct fuel injection stratified charge engine63US 5,605,125 A1997
- Internal combustion engine with delayed torch ignition of oil fuel charge62US 4,091,772 ACooper Industries, Inc. · 1978
- Plasma fuel ignitors61US 4,332,223 A1982
- Fuel flow control valve assembly57US 4,301,825 AFord Motor Company · 1981