F01L 13/04
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or
Official title: for starting by means of fluid pressure
F01L13/04 (Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or) appears on 10 US grants and 8 published applications in this corpus.
Search patents in F01L- Granted patents
- 10
- Published applications
- 8
- Assignees
- 9
- Inventors
- 23
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Valve drive for an internal combustion engine, internal combustion engine comprising such a valve drive, and method for operating an internal combustion engine comprising such a valve drive19 Oct 2021US 11,149,597 B2MTU Friedrichshafen GmbH
- Engine10 Sep 2019US 10,408,161 B2Yanmar Co., Ltd.
- Motor vehicle drivetrain controller30 Jul 2019US 10,364,713 B2GM Global Technology Operations LLC
- Pneumatic hybrid internal combustion engine on the basis of fixed camshafts25 Feb 2014US 8,657,044 B2ETH Zurich
- Hydraulic actuation system for improved engine control6 Jul 2010US 7,748,353 B2Ford Global Technologies, LLC
- Method for introducing highly precompressed combustion air into a combustion chamber of an internal combustion engine, high-pressure inlet valve therefor and internal combustion engine having such a high-pressure inlet valve24 Mar 2022US 2022/0090522 A1Erwin Junker Grinding Technology A.S.
- Valve drive for an internal combustion engine, internal combustion engine comprising such a valve drive, and method for operating an internal combustion engine comprising such a valve drive5 Dec 2019US 2019/0368391 A1MTU Friedrichshafen GmbH
- Engine14 Dec 2017US 2017/0356385 A1Yanmar Co., Ltd.
- Motor vehicle drivetrain controller24 Aug 2017US 2017/0241306 A1GM Global Technology Operations LLC
- Pneumatic hybrid internal combustion engine on the basis of fixed camshafts3 Feb 2011US 2011/0023820 A1ETH Zurich
Most cited
By later US patents
- Hydraulic actuation system for improved engine control14US 7,748,353 B2Ford Global Technologies, LLC · 2010
- Multi-cylinder diesel engine12US 4,248,198 AMotor und Turbinen-Union Freidrichshafen GmbH · 1981
- Hydraulic actuation system for improved engine start8US 7,546,821 B2Ford Global Technologies, LLC · 2009
- Method and apparatus for starting an engine utilizing unit valve actuation7US 5,251,590 ACaterpillar Inc. · 1993
- Pneumatic hybrid internal combustion engine on the basis of fixed camshafts3US 8,657,044 B2ETH Zurich · 2014