F02D 13/0273
Multiple actuations of a valve within an engine cycle
Official title: {Multiple actuations of a valve within an engine cycle}
F02D13/0273 (Multiple actuations of a valve within an engine cycle) appears on 206 US grants and 211 published applications in this corpus.
Search patents in F02D- Granted patents
- 206
- Published applications
- 211
- Assignees
- 97
- Inventors
- 431
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 2 |
| 2002 | 3 | 4 |
| 2003 | 3 | 11 |
| 2004 | 9 | 7 |
| 2005 | 8 | 17 |
| 2006 | 21 | 18 |
| 2007 | 9 | 5 |
| 2008 | 4 | 9 |
| 2009 | 5 | 14 |
| 2010 | 6 | 8 |
| 2011 | 4 | 5 |
| 2012 | 8 | 6 |
| 2013 | 3 | 9 |
| 2014 | 4 | 17 |
| 2015 | 10 | 9 |
| 2016 | 14 | 7 |
| 2017 | 10 | 10 |
| 2018 | 6 | 8 |
| 2019 | 8 | 8 |
| 2020 | 14 | 10 |
| 2021 | 7 | 13 |
| 2022 | 10 | 5 |
| 2023 | 7 | 4 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Combined engine braking and positive power engine lost motion valve actuation system7 Jan 2025US 12,188,420 B2Jacobs Vehicle Systems, Inc.
- Valve control apparatus for engine21 May 2024US 11,988,160 B2Hd Hyundai Infracore Co., Ltd.
- Valve lift conversion control mechanism and valve system of engine9 Jul 2026US 2026/0193997 A1Weichai Power Co., Ltd.
- Exhaust rebreathe enabled mixing controlled compression ignition15 Jan 2026US 2026/0015983 A1Marquette University
- Method to perform rebreathe mode transitions1 Jan 2026US 2026/0002481 A1Aramco Services Company
- Work vehicle compression ignition power system having thermally stratified engine combustion chambers9 Jan 2025US 2025/0012226 A1Deere & Company
- Work vehicle compression ignition power system having thermally stratified engine combustion chambers2 May 2024US 2024/0141844 A1Deere & Company
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Engine operation using fully flexible valve and injection events156US 5,117,790 ACaterpillar Inc. · 1992
- Multi-level skip fire100US 9,399,964 B2Tula Technology, Inc. · 2016
- Method of improving the efficiency of a supercharged diesel engine71US 4,424,790 ASociete d'Etudes de Machines Thermiques S.E.M.T. · 1984
- Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engine71US 7,021,277 B2General Motors Corporation · 2006