F02D 41/0042
Controlling the combustible mixture as a function of the canister purging
Official title: {Controlling the combustible mixture as a function of the canister purging, e.g. control of injected fuel to compensate for deviation of air fuel ratio when purging}
F02D41/0042 (Controlling the combustible mixture as a function of the canister purging) appears on 381 US grants and 221 published applications in this corpus.
Search patents in F02D- Granted patents
- 381
- Published applications
- 221
- Assignees
- 74
- Inventors
- 643
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 15 | 0 |
| 1996 | 13 | 0 |
| 1997 | 16 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 17 | 0 |
| 2001 | 16 | 5 |
| 2002 | 17 | 11 |
| 2003 | 12 | 14 |
| 2004 | 13 | 4 |
| 2005 | 5 | 10 |
| 2006 | 6 | 3 |
| 2007 | 9 | 6 |
| 2008 | 4 | 4 |
| 2009 | 2 | 10 |
| 2010 | 9 | 7 |
| 2011 | 7 | 8 |
| 2012 | 4 | 2 |
| 2013 | 4 | 8 |
| 2014 | 6 | 7 |
| 2015 | 3 | 9 |
| 2016 | 10 | 10 |
| 2017 | 14 | 21 |
| 2018 | 14 | 13 |
| 2019 | 17 | 20 |
| 2020 | 28 | 26 |
| 2021 | 27 | 14 |
| 2022 | 16 | 4 |
| 2023 | 5 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method and control apparatus for operating a tank ventilation system of an internal combustion engine13 Feb 2024US 11,898,507 B2Vitesco Technologies GmbH
- Methods, systems, and apparatuses of purge content estimation logic for improved fuel control14 Nov 2023US 11,815,875 B2GM Global Technology Operations LLC
- Method of controlling opening speed of purge valve according to purge gas concentration and active purge system thereof15 Aug 2023US 11,725,600 B1Hyundai Motor Company
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- Vehicle28 May 2026US 2026/0146570 A1Subaru Corporation
- Method and system for improving evaporative emissions of a vehicle11 Jan 2024US 2024/0011448 A1Ford Global Technologies, LLC
- Method And Control Apparatus For Operating A Tank Ventilation System Of An Internal Combustion Engine24 Aug 2023US 2023/0265805 A1Vitesco Technologies GmbH
Most cited
By later US patents
- Vapor recovery control system for direct injection spark ignition engines110US 5,950,603 AFord Global Technologies, LLC · 1999
- System and method for engine fuel blend control110US 7,287,492 B2Ford Global Technologies, LLC · 2007
- Engine system and method with cylinder deactivation106US 6,978,204 B2Ford Global Technologies, LLC · 2005
- Regulation of engine parameters in response to vapor recovery purge systems66US 4,748,959 AFord Motor Company · 1988
- Combustible-gas sensor, diagnostic device for intake-oxygen concentration sensor, and air-fuel ratio control device for internal combustion engines63US 6,739,177 B2Nippon Soken, Inc. · 2004