F02M 7/18
With means for controlling cross-sectional area of fuel-metering orifice
Official title: with means for controlling cross-sectional area of fuel-metering orifice (dependent on air-throttle position F02M7/22)
F02M7/18 (With means for controlling cross-sectional area of fuel-metering orifice) appears on 144 US grants and 48 published applications in this corpus.
Search patents in F02M- Granted patents
- 144
- Published applications
- 48
- Assignees
- 61
- Inventors
- 189
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 10 | 0 |
| 1981 | 9 | 0 |
| 1982 | 15 | 0 |
| 1983 | 10 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 4 | 3 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 4 | 3 |
| 2018 | 0 | 0 |
| 2019 | 3 | 8 |
| 2020 | 5 | 3 |
| 2021 | 4 | 4 |
| 2022 | 4 | 1 |
| 2023 | 0 | 2 |
| 2024 | 3 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adjustment structure and carburetor17 Mar 2026US 12,577,927 B2
- Fuel supply device with injector and vapor management22 Oct 2024US 12,123,374 B2Walbro Corporation
- Low pressure fuel and air charge forming device for a combustion engine12 Mar 2024US 11,927,164 B2Walbro Corporation
- Fuel supply device with injector and vapor management5 Mar 2024US 11,920,544 B2Walbro Corporation
- Low pressure fuel and air charge forming device for a combustion engine27 Dec 2022US 11,536,235 B2Walbro Corporation
- Electronic Metering Rod Actuator for Carburetor19 Jun 2025US 2025/0198369 A1Kimberlyte Holdings, LLC
- Fuel supply device with injector and vapor management30 May 2024US 2024/0175411 A1Walbro Corporation
- Adjustment structure and carburetor1 Feb 2024US 2024/0035430 A1
- Fuel supply device with injector and vapor management20 Apr 2023US 2023/0123915 A1Walbro Corporation
- Low pressure fuel and air charge forming device for a combustion engine23 Mar 2023US 2023/0087858 A1Walbro Corporation
Most cited
By later US patents
- Engine with dual sensor closed loop fuel control109US 3,939,654 AGeneral Motors Corporation · 1976
- Fuel control with learning capability for motor vehicle combustion engine86US 4,235,204 AGeneral Motors Corporation · 1980
- Carburetor and method and apparatus for controlling air/fuel ratio of same57US 5,611,312 AWalbro Corporation · 1997
- Adapter means for creating an open loop manually adjustable apparatus and system for selectively controlling the air-fuel ratio supplied to a combustion engine54US 4,556,032 AColt Industries Operating Corp. · 1985
- Apparatus and system for controlling the air-fuel ratio supplied to a combustion engine45US 4,294,282 AColt Industries Operating Corp. · 1981