F02B 23/0618
Having in-cylinder means to influence the charge motion
Official title: {having in-cylinder means to influence the charge motion}
F02B23/0618 (Having in-cylinder means to influence the charge motion) appears on 307 US grants and 210 published applications in this corpus.
Search patents in F02B- Granted patents
- 307
- Published applications
- 210
- Assignees
- 134
- Inventors
- 589
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 3 |
| 2002 | 3 | 6 |
| 2003 | 13 | 6 |
| 2004 | 8 | 9 |
| 2005 | 6 | 9 |
| 2006 | 7 | 6 |
| 2007 | 6 | 9 |
| 2008 | 8 | 3 |
| 2009 | 5 | 6 |
| 2010 | 1 | 8 |
| 2011 | 6 | 10 |
| 2012 | 2 | 7 |
| 2013 | 7 | 6 |
| 2014 | 8 | 10 |
| 2015 | 7 | 11 |
| 2016 | 12 | 15 |
| 2017 | 10 | 11 |
| 2018 | 18 | 12 |
| 2019 | 13 | 18 |
| 2020 | 15 | 23 |
| 2021 | 14 | 9 |
| 2022 | 8 | 4 |
| 2023 | 4 | 4 |
| 2024 | 1 | 1 |
| 2025 | 3 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piston with combustion stabilizing bowl4 Aug 2026US 12,698,734 B2Caterpillar Inc.
- Piston for compression-ignition engine having antebowl and engine operating strategy utilizing same8 Jul 2025US 12,352,200 B2Caterpillar Inc.
- Piston assembly with opposing injection regions for an opposed-piston engine3 Jun 2025US 12,320,312 B2Achates Power, Inc.
- Low compression natural gas engine piston bowl for improved combustion stability1 Apr 2025US 12,264,636 B2Caterpillar Inc.
- Piston bowl geometry, cuff and top land interaction for reduced hydrocarbons, improved combustion efficiency, and piston temperature13 Feb 2024US 11,898,488 B2Caterpillar Inc.
- Engine system employing air jet injection for limiting plume-plume interaction of combusting fuel spray plumes10 Sep 2026US 2026/0266212 A1Caterpillar Inc.
- Wall-guided spark assistance for cold operations in gasoline compression ignition engines16 Jul 2026US 2026/0201828 A1Aramco Services Company
- Piston for reciprocating within a cylinder in an internal combustion engine18 Jun 2026US 2026/0168460 A1Cummins Inc.
- Piston with combustion stabilizing bowl25 Sep 2025US 2025/0297569 A1Caterpillar Inc.
- Low compression natural gas engine piston bowl for improved combustion stability21 Mar 2024US 2024/0093659 A1Caterpillar Inc.
Most cited
By later US patents
- Hybrid electric vehicle127US 5,881,559 AIsuzu Ceramics Research Institute Co., Ltd. · 1999
- Combustion system for direct injection diesel engines95US 6,553,960 B1Yanmar Co., Ltd. · 2003
- Method and apparatus for dual fuel injection into an internal combustion engine93US 6,202,601 B1Westport Research Inc. · 2001
- Combustion engine71US 6,213,086 B1AVL List GmbH · 2001
- Intensifier-injector for gaseous fuel for positive displacement engines67US 5,315,973 AThe University of British Columbia · 1994