F02D 19/023
To adjust the fuel mass or volume flow
Official title: {to adjust the fuel mass or volume flow}
F02D19/023 (To adjust the fuel mass or volume flow) appears on 579 US grants and 500 published applications in this corpus.
Search patents in F02D- Granted patents
- 579
- Published applications
- 500
- Assignees
- 257
- Inventors
- 1,202
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 12 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 2 |
| 2002 | 10 | 13 |
| 2003 | 13 | 13 |
| 2004 | 13 | 19 |
| 2005 | 12 | 12 |
| 2006 | 20 | 14 |
| 2007 | 13 | 20 |
| 2008 | 12 | 15 |
| 2009 | 8 | 22 |
| 2010 | 13 | 20 |
| 2011 | 15 | 21 |
| 2012 | 14 | 22 |
| 2013 | 15 | 13 |
| 2014 | 13 | 19 |
| 2015 | 15 | 28 |
| 2016 | 25 | 28 |
| 2017 | 20 | 15 |
| 2018 | 13 | 19 |
| 2019 | 21 | 25 |
| 2020 | 20 | 18 |
| 2021 | 20 | 8 |
| 2022 | 14 | 11 |
| 2023 | 22 | 31 |
| 2024 | 28 | 30 |
| 2025 | 39 | 42 |
| 2026 | 14 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and a method for reducing hydrogen knocking in a hydrogen internal combustion engine2 Jun 2026US 12,644,424 B1United Arab Emirates University
- Method of operating a hydrogen internal combustion engine19 May 2026US 12,631,151 B2Phinia Delphi Luxembourg Sarl
- Fuel bypass system for gaseous-fueled engine12 May 2026US 12,624,655 B2Generac Power Systems, Inc.
- Control device for hydrogen engine12 May 2026US 12,624,667 B2Toyota Jidosha Kabushiki Kaisha
- System and method for capturing and utilizing fugitive combustible gases during natural gas production28 Apr 2026US 12,612,885 B1Oasis Emission Consultants, Inc.
- Fuel supply system, and vehicle1 Oct 2026US 2026/0298160 A1Isuzu Motors Limited
- Method of controlling injection in a hydrogen internal combustion engine20 Aug 2026US 2026/0243207 A1Phinia Delphi Luxembourg Sarl
- Fueling system controls including detection of valve fully open condition16 Jul 2026US 2026/0201846 A1Cummins Inc.
- Control device for internal combustion engine25 Jun 2026US 2026/0177016 A1Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine and fueling system for injecting gaseous fuel and method for releasing movable mass from valve seat25 Jun 2026US 2026/0177020 A1
Most cited
By later US patents
- Bi-fuel control system and retrofit assembly for diesel engines231US 6,543,395 B2Gas Technologies LLC · 2003
- Optimized lambda and compression temperature control for compression ignition engines133US 6,273,076 B1Servojet Products International · 2001
- LNG delivery system for gas powered vehicles117US 5,127,230 AMinnesota Valley Engineering, Inc. · 1992
- Operating techniques for internal combustion engines116US 6,408,625 B1Cummins Engine Company, Inc. · 2002
- Method for controlling combustion in an internal combustion engine and predicting performance and emissions78US 7,392,129 B2Westport Power Inc. · 2008