F02M 23/14
Apparatus for adding secondary air to fuel-air mixture: characterised by adding hot
Official title: characterised by adding hot {secondary} air
F02M23/14 (Apparatus for adding secondary air to fuel-air mixture: characterised by adding hot) appears on 24 US grants and 6 published applications in this corpus.
Search patents in F02M- Granted patents
- 24
- Published applications
- 6
- Assignees
- 7
- Inventors
- 29
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for controlling a gaseous blend in a combustion chamber of a two-stroke cycle of an internal combustion engine3 Mar 2026US 12,565,867 B2
- Removal of contaminants from air for use in aircraft engines18 Oct 2022US 11,473,464 B2Pratt & Whitney Canada Corp.
- Methods and systems for operating an adjustable pre-chamber10 Aug 2021US 11,085,402 B1Ford Global Technologies, LLC
- Method and system for a gas turbine engine air ventilation purge circuit12 Nov 2019US 10,473,060 B2General Electric Company
- Induction and fuel delivery system for piston engine14 Jan 2014US 8,627,799 B2
- Cycle based on compressed air by an auxiliary compressor for internal combustion engines17 Apr 2025US 2025/0122851 A1
- Removal of contaminants from air for use in aircraft engines18 Feb 2021US 2021/0047953 A1Pratt & Whitney Canada Corp.
- Method and system for a gas turbine engine air ventilation purge circuit23 Jun 2016US 2016/0177878 A1General Electric Company
- Method and system for a gas turbine engine purge circuit water injection23 Jun 2016US 2016/0177879 A1General Electric Company
- Induction and fuel delivery system for piston engine5 Aug 2010US 2010/0192906 A1
Most cited
By later US patents
- Secondary air supplying apparatus for internal combustion engine and air heating apparatus thereof37US 5,666,804 AMitsubishi Denki Kabushiki Kaisha · 1997
- Fuel vaporizing device29US 4,108,953 A1978
- Apparatus and a method for operating an internal combustion engine18US 4,368,711 A1983
- Hot air vaporization system for an internal combustion engine13US 4,167,166 AMileage Research, Ltd. · 1979
- Methods and systems for operating an adjustable pre-chamber12US 11,085,402 B1Ford Global Technologies, LLC · 2021