F02M 7/22
Fuel flow cross-sectional area being controlled dependent on air-throttle-valve position
Official title: fuel flow cross-sectional area being controlled dependent on air-throttle-valve position (the throttle valve being slidably arranged transversely to air passage F02M9/06)
F02M7/22 (Fuel flow cross-sectional area being controlled dependent on air-throttle-valve position) appears on 70 US grants and 25 published applications in this corpus.
Search patents in F02M- Granted patents
- 70
- Published applications
- 25
- Assignees
- 39
- Inventors
- 113
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bottom feed fuel bowl10 Mar 2026US 12,571,362 B2K&N Engineering, Inc.
- De-preserving a fuel system of a turbine engine22 Jul 2025US 12,366,220 B2Rtx Corporation
- Non-road engine15 Jul 2025US 12,359,644 B2Chongqing Zongshen General Power Machine Co., Ltd.
- Bottom feed fuel bowl2 Apr 2024US 11,946,440 B2K&N Engineering, Inc.
- De-preserving a fuel system of a turbine engine30 Jan 2024US 11,885,287 B2Rtx Corporation
- Non-road engine30 Jan 2025US 2025/0035072 A1Chongqing Zongshen General Power Machine Co., Ltd.
- Bottom feed fuel bowl25 Jul 2024US 2024/0247620 A1K&N Engineering, Inc.
- De-preserving a fuel system of a turbine engine23 May 2024US 2024/0167444 A1Rtx Corporation
- De-preserving a fuel system of a turbine engine12 Jan 2023US 2023/0009768 A1Raytheon Technologies Corporation
- Bottom feed fuel bowl28 Apr 2022US 2022/0128017 A1K&N Engineering, Inc.
Most cited
By later US patents
- Fuel efficient, low pollution carburetor and methods25US 4,515,734 A1985
- Fuel efficient, low pollution carburetor23US 4,568,500 A1986
- Method and apparatus for carburetion19US 4,686,951 ADresser Industries, Inc. · 1987
- Variable venturi carburetor17US 4,268,462 ANissan Motor Co., Ltd. · 1981
- Variable venturi carburetor13US 6,672,570 B2Walbro Japan, Inc. · 2004