F02B 19/06
Engines characterised by precombustion chambers: with auxiliary piston in chamber for transferring
Official title: with auxiliary piston in chamber for transferring ignited charge to cylinder space
F02B19/06 (Engines characterised by precombustion chambers: with auxiliary piston in chamber for transferring) appears on 59 US grants and 33 published applications in this corpus.
Search patents in F02B- Granted patents
- 59
- Published applications
- 33
- Assignees
- 23
- Inventors
- 77
- Latest grant
- 28 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 3 |
| 2013 | 0 | 3 |
| 2014 | 2 | 4 |
| 2015 | 0 | 0 |
| 2016 | 3 | 8 |
| 2017 | 2 | 1 |
| 2018 | 5 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 6 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pre-chamber ignition device with variable volume capability for internal combustion engines28 May 2024US 11,994,057 B1Saudi Arabian Oil Company
- Fuel supply system for active pre-combustor17 Oct 2023US 11,788,458 B2Guangzhou Automobile Group Co., Ltd.
- Ignitor for natural gas engine10 May 2022US 11,326,507 B2Caterpillar Inc.
- Direct torque control, piston engine5 Oct 2021US 11,136,916 B1
- Prechamber ignition system having hydraulically actuated piston21 Sep 2021US 11,125,147 B2Caterpillar Inc.
- Air/steam engine and use thereof25 Dec 2025US 2025/0389237 A1
- Fuel supply system for active pre-combustor25 May 2023US 2023/0160334 A1Guangzhou Automobile Group Co., Ltd.
- Ignitor for natural gas engine21 Oct 2021US 2021/0324783 A1Caterpillar Inc.
- Ignitor for natural gas engine22 Jul 2021US 2021/0222609 A1Caterpillar Inc.
- Prechamber ignition system having hydraulically actuated piston17 Dec 2020US 2020/0392892 A1Caterpillar Inc.
Most cited
By later US patents
- Method to extend lean ignition limit within internal combustion engine37US 7,100,567 B1Caterpillar Inc. · 2006
- Combustion engine for hydrogen25US 5,115,768 ADeutsche Forschungsanstalt fur Luft- und Raumfahrt e.V. · 1992
- Internal combustion engine with variable compression ratio23US 6,427,643 B12002
- Internal combustion engine19US 10,161,296 B2Board of Trustees of Michigan State University · 2018
- External compression ignition system for internal combustion engines19US 4,075,996 A1978