F01L 13/06
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or
Official title: for braking
F01L13/06 (Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or) appears on 760 US grants and 605 published applications in this corpus.
Search patents in F01L- Granted patents
- 760
- Published applications
- 605
- Assignees
- 150
- Inventors
- 908
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 22 | 0 |
| 1998 | 20 | 0 |
| 1999 | 9 | 0 |
| 2000 | 14 | 0 |
| 2001 | 28 | 4 |
| 2002 | 20 | 17 |
| 2003 | 23 | 30 |
| 2004 | 16 | 18 |
| 2005 | 14 | 24 |
| 2006 | 26 | 9 |
| 2007 | 8 | 11 |
| 2008 | 5 | 13 |
| 2009 | 14 | 12 |
| 2010 | 8 | 26 |
| 2011 | 16 | 25 |
| 2012 | 18 | 13 |
| 2013 | 10 | 10 |
| 2014 | 18 | 23 |
| 2015 | 15 | 13 |
| 2016 | 18 | 35 |
| 2017 | 11 | 21 |
| 2018 | 19 | 33 |
| 2019 | 23 | 42 |
| 2020 | 66 | 52 |
| 2021 | 42 | 44 |
| 2022 | 51 | 29 |
| 2023 | 27 | 27 |
| 2024 | 38 | 38 |
| 2025 | 29 | 26 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve lift conversion control mechanism and valve system of engine29 Sep 2026US 12,747,682 B2Weichai Power Co., Ltd.
- Hydraulic capsule for variable valve actuation4 Aug 2026US 12,698,732 B2Eaton Intelligent Power Limited
- Self-contained compression brake control module for integrated rocker arm engine braking and methods28 Apr 2026US 12,612,869 B2Pacbrake Company
- Rocker arm assembly7 Apr 2026US 12,595,753 B2Eaton Intelligent Power Limited
- Rocker arm for brake with integrated hydraulic capsule7 Apr 2026US 12,595,755 B2Eaton Intelligent Power Limited
- Method to shut down an internal combustion engine27 Aug 2026US 2026/0251095 A1Volvo Truck Corporation
- Engine braking device with returning and limiting functions and engine30 Jul 2026US 2026/0218633 A1Zhejiang Liming Intelligent Manufacturing Co., Ltd.
- Valve lift conversion control mechanism and valve system of engine9 Jul 2026US 2026/0193997 A1Weichai Power Co., Ltd.
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Valve Bridge11 Jun 2026US 2026/0160189 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Programmed valve system for internal combustion engine169US 4,009,695 A1977
- Vehicle operating method and system115US 6,223,846 B12001
- Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle103US 4,572,114 AThe Jacobs Manufacturing Company · 1986
- Internal combustion engines with combined cam and electro-hydraulic engine valve control86US 5,680,841 ADiesel Engine Retarders, Inc. · 1997
- System and method for controlling the amount of lost motion between an engine valve and a valve actuation means83US 5,829,397 ADiesel Engine Retarders, Inc. · 1998