F02B 19/1071
Pre-combustion chamber having only one orifice
Official title: {pre-combustion chamber having only one orifice,(i.e. an orifice by means of which it communicates with the cylinder); the intake system comprising two distinct intake conduits}
F02B19/1071 (Pre-combustion chamber having only one orifice) appears on 10 US grants and 11 published applications in this corpus.
Search patents in F02B- Granted patents
- 10
- Published applications
- 11
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- Air-assisted jet flame ignition device and ignition method thereof30 May 2023US 11,661,885 B2Tianjin University
- Ignition insert with an active pre-chamber30 Nov 2021US 11,187,141 B2
- Magnetic valve recoil device12 Jan 2021US 10,890,133 B2
- Method of operating an engine having a pilot subchamber at partial load conditions14 Jan 2020US 10,533,486 B2Pratt & Whitney Canada Corp.
- Prechamber-type engine4 Dec 2025US 2025/0369388 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Pre-Chamber Combustion Systems and Methods7 Sep 2023US 2023/0279802 A1M2X Energy Inc.
- Air-assisted jet flame ignition device and ignition method thereof9 Feb 2023US 2023/0040984 A1Tianjin University
- Ignition insert with an active pre-chamber19 Nov 2020US 2020/0362750 A1
- Magnetic valve recoil device12 Mar 2020US 2020/0080508 A1
Most cited
By later US patents
- Prechamber system for an internal combustion engine14US 9,151,212 B2Ge Jenbacher GmbH & Co Og · 2015
- Parallel prechamber ignition system11US 9,840,963 B2Woodward, Inc. · 2017
- Internal combustion engine8US 3,980,059 AToyota Jidosha Kogyo Kabushiki Kaisha · 1976
- Method of operating an engine having a pilot subchamber at partial load conditions4US 10,072,559 B2Pratt & Whitney Canada Corp. · 2018
- Stratified-combustion type internal combustion engine with pre-combustion-chamber4US 3,967,611 AToyota Jidosha Kogyo Kabushiki Kaisha · 1976