F02M 45/083
Having two or more closing springs acting on injection-valve
Official title: {Having two or more closing springs acting on injection-valve}
F02M45/083 (Having two or more closing springs acting on injection-valve) appears on 70 US grants and 18 published applications in this corpus.
Search patents in F02M- Granted patents
- 70
- Published applications
- 18
- Assignees
- 27
- Inventors
- 123
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Proportional force modification of passive spool for control of secondary nozzle circuits27 May 2025US 12,313,004 B2Collins Engine Nozzles, Inc.
- Fuel injection device20 Aug 2024US 12,065,995 B2Hitachi Astemo, Ltd.
- Fuel injector25 Jan 2022US 11,231,001 B2Vitesco Technologies GmbH
- Hydraulically actuated gaseous fuel injector6 Jul 2021US 11,053,866 B2Westport Fuel Systems Canada Inc.
- Fuel injection control device and fuel injection system12 May 2020US 10,648,419 B2Denso Corporation
- Fuel Injection Device9 May 2024US 2024/0151199 A1Hitachi Astemo, Ltd.
- Proportional force modification of passive spool for control of secondary nozzle circuits29 Feb 2024US 2024/0068408 A1Collins Engine Nozzles, Inc.
- Hydraulically actuated gaseous fuel injector13 Jun 2019US 2019/0178172 A1Westport Power Inc.
- Fuel injection control device and fuel injection system8 Nov 2018US 2018/0320620 A1Denso Corporation
- Fuel injection valve14 Jun 2018US 2018/0163681 A1Denso Corporation
Most cited
By later US patents
- Fuel injection nozzle42US 4,938,193 AStanadyne Automotive Corp. · 1990
- Fuel injection system having pre-injection and main injection41US 6,302,080 B1Denso Corporation · 2001
- Two-stage, hydraulic-assisted fuel injection nozzle40US 4,684,067 AGeneral Motors Corporation · 1987
- Fuel injection nozzle38US 4,662,338 ARobert Bosch GmbH · 1987
- Fuel injection nozzle for internal combustion engines34US 4,168,804 ARobert Bosch GmbH · 1979