F02B 23/0645
Details related to the fuel injector or the fuel spray
Official title: {Details related to the fuel injector or the fuel spray}
F02B23/0645 (Details related to the fuel injector or the fuel spray) appears on 432 US grants and 389 published applications in this corpus.
Search patents in F02B- Granted patents
- 432
- Published applications
- 389
- Assignees
- 164
- Inventors
- 859
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 3 |
| 2002 | 2 | 8 |
| 2003 | 11 | 12 |
| 2004 | 10 | 11 |
| 2005 | 8 | 10 |
| 2006 | 10 | 14 |
| 2007 | 14 | 10 |
| 2008 | 14 | 13 |
| 2009 | 7 | 18 |
| 2010 | 8 | 18 |
| 2011 | 11 | 21 |
| 2012 | 9 | 13 |
| 2013 | 17 | 17 |
| 2014 | 18 | 15 |
| 2015 | 11 | 28 |
| 2016 | 16 | 22 |
| 2017 | 16 | 21 |
| 2018 | 34 | 20 |
| 2019 | 19 | 28 |
| 2020 | 27 | 30 |
| 2021 | 19 | 10 |
| 2022 | 9 | 9 |
| 2023 | 8 | 16 |
| 2024 | 9 | 7 |
| 2025 | 7 | 7 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 23/0669Having multiple fuel spray jets per injector nozzle233
- F02B 23/0648Means or methods to improve the spray dispersion, evaporation or ignition202
- F02B 23/0654Thermal treatments70
- F02B 23/0663Having multiple injectors per combustion chamber53
- F02B 23/066The injector being located substantially off-set from the cylinder centre axis43
- F02B 23/0666Having a single fuel spray jet per injector nozzle15
Recent patents
- Internal combustion engine system10 Feb 2026US 12,546,263 B2Volvo Truck Corporation
- Engine system, piston, and operating method for pseudo-tumble mixing of hydrogen fuel and air6 Jan 2026US 12,516,648 B2Caterpillar Inc.
- Piston and an internal combustion engine system14 Oct 2025US 12,442,347 B2Volvo Truck Corporation
- Thrust control method for an airbreathing jet engine12 Aug 2025US 12,385,428 B2ROLLS-ROYCE plc
- Internal combustion engine with spark plug and prechamber spark plug12 Aug 2025US 12,385,446 B2Robert Bosch GmbH
- Engine system employing air jet injection for limiting plume-plume interaction of combusting fuel spray plumes10 Sep 2026US 2026/0266212 A1Caterpillar Inc.
- Ducted fuel injection strategy employing baffle for redirection of combusting fuel plumes10 Sep 2026US 2026/0266213 A1Caterpillar Inc.
- Piston Bowl For An Internal Combustion Engine20 Aug 2026US 2026/0243215 A1Perkins Engines Company Limited
- Wall-guided spark assistance for cold operations in gasoline compression ignition engines16 Jul 2026US 2026/0201828 A1Aramco Services Company
- Gaseous fuel combustion system and method utilizing a piston reentrant feature for hastened fuel-air mixing16 Jul 2026US 2026/0201829 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
- Flame incubating and propagating apparatus for a fuel combustion system67US 4,721,081 ACaterpillar Inc. · 1988