F02B 19/1028
Pre-combustion chamber and cylinder having both intake ports or valves
Official title: {pre-combustion chamber and cylinder having both intake ports or valves, e.g. HONDS CVCC}
F02B19/1028 (Pre-combustion chamber and cylinder having both intake ports or valves) appears on 142 US grants and 68 published applications in this corpus.
Search patents in F02B- Granted patents
- 142
- Published applications
- 68
- Assignees
- 55
- Inventors
- 238
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 3 | 4 |
| 2016 | 3 | 7 |
| 2017 | 2 | 3 |
| 2018 | 3 | 3 |
| 2019 | 2 | 6 |
| 2020 | 7 | 4 |
| 2021 | 8 | 8 |
| 2022 | 8 | 4 |
| 2023 | 5 | 6 |
| 2024 | 9 | 11 |
| 2025 | 5 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 19/1052Controlling23
- F02B 19/1061With residual gas chamber21
- F02B 19/1033Specially adapted valves19
- F02B 19/1057With fuel injectors disposed upstream of intake valves10
- F02B 19/1042Auxiliary intake, valve drive9
- F02B 19/1047Means for varying the size of the torch passage8
- F02B 19/1038Timing of valves5
Recent patents
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Internal combustion engine12 May 2026US 12,624,669 B2Innio Jenbacher GmbH & Co OG
- Assemblies for engines27 Jan 2026US 12,535,029 B2Aston Martin Lagonda Limited
- Ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system25 Nov 2025US 12,480,453 B2Tianjin University
- Internal combustion engine with spark plug and prechamber spark plug12 Aug 2025US 12,385,446 B2Robert Bosch GmbH
- Gas valve for an internal combustion engine23 Jul 2026US 2026/0210284 A1
- Gas engine15 Jan 2026US 2026/0015965 A1IHI Corporation
- Enhanced fuel mixing systems for direct injected natural gas engines, and devices and methods thereof14 Aug 2025US 2025/0257703 A1Radical Combustion Technologies, LLC
- Ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system8 May 2025US 2025/0146449 A1Tianjin University
- Internal combustion engine with ceramic pilot chamber component(s)17 Oct 2024US 2024/0344700 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Internal combustion engine with auxiliary combustion chamber1,410US 4,106,446 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1978
- Catalytic-compression timed ignition77US 5,109,817 AAltronic, Inc. · 1992
- Use of prechambers with dual fuel source engines57US 8,925,518 B1Woodward, Inc. · 2015
- Internal combustion engine with stratified charge56US 3,976,039 ARegie Nationale des Usines Renault · 1976
- Turbulent jet ignition pre-chamber combustion system for spark ignition engines51US 8,857,405 B2Mahle Powertrain Ltd. · 2014