F02M 61/1833
Discharge orifices having changing cross sections
Official title: {Discharge orifices having changing cross sections, e.g. being divergent}
F02M61/1833 (Discharge orifices having changing cross sections) appears on 156 US grants and 180 published applications in this corpus.
Search patents in F02M- Granted patents
- 156
- Published applications
- 180
- Assignees
- 63
- Inventors
- 378
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 3 |
| 2004 | 5 | 6 |
| 2005 | 2 | 5 |
| 2006 | 10 | 10 |
| 2007 | 5 | 3 |
| 2008 | 2 | 4 |
| 2009 | 2 | 1 |
| 2010 | 2 | 3 |
| 2011 | 0 | 2 |
| 2012 | 2 | 7 |
| 2013 | 1 | 3 |
| 2014 | 2 | 11 |
| 2015 | 4 | 29 |
| 2016 | 12 | 19 |
| 2017 | 19 | 6 |
| 2018 | 11 | 15 |
| 2019 | 14 | 20 |
| 2020 | 16 | 7 |
| 2021 | 10 | 7 |
| 2022 | 3 | 5 |
| 2023 | 5 | 6 |
| 2024 | 2 | 1 |
| 2025 | 4 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel injection valve27 Jan 2026US 12,535,044 B2Denso Corporation
- Fuel injector having multiple rows of spray holes with different cross-sectional shapes for flow modulation4 Nov 2025US 12,460,611 B2Cummins Inc.
- Apparatus and method for injecting a pilot fuel into an internal combustion engine2 Sep 2025US 12,404,818 B2HPDI Technology LP
- Fuel injection device15 Jul 2025US 12,359,645 B2Hitachi Astemo, Ltd.
- Working method of orifice and fuel injection valve29 Apr 2025US 12,286,950 B2Hitachi Astemo, Ltd.
- Fuel injector nozzle, fuel injector, internal combustion engine, and vehicle23 Apr 2026US 2026/0110284 A1Scania CV AB
- Ignition system23 Apr 2026US 2026/0110285 A1Volvo Truck Corporation
- Apparatus and method for injecting a pilot fuel into an internal combustion engine12 Feb 2026US 2026/0043371 A1Cespira Canada Limited Partnership
- Apparatus and method for injecting a pilot fuel into an internal combustion engine26 Sep 2024US 2024/0318608 A1HPDI Technology LP
- Fuel injector having spray ducts sized for optimized soot reduction3 Aug 2023US 2023/0243327 A1Caterpillar Inc.
Most cited
By later US patents
- Fuel oil injector with a floating ball as its valve unit75US 5,054,691 AIndustrial Technology Research Institute · 1991
- Fuel injection valve having different fuel injection angles at different opening amounts46US 5,163,621 ANippondenso Co., Ltd. · 1992
- Injection device for a diesel engine36US 4,566,634 ADeutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e. V. · 1986
- Fuel injection valve34US 4,069,978 AKlockner-Humboldt-Deutz Aktiengesellschaft · 1978
- Supersonic injector for gaseous fuel engine30US 6,708,905 B2Emissions Control Technology, LLC · 2004