F02D 13/0238
By shifting the phase, i.e. the opening periods of the valves are
Official title: {by shifting the phase, i.e. the opening periods of the valves are constant}
F02D13/0238 (By shifting the phase, i.e. the opening periods of the valves are) appears on 310 US grants and 277 published applications in this corpus.
Search patents in F02D- Granted patents
- 310
- Published applications
- 277
- Assignees
- 67
- Inventors
- 592
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 10 |
| 2003 | 7 | 2 |
| 2004 | 7 | 3 |
| 2005 | 5 | 6 |
| 2006 | 10 | 21 |
| 2007 | 12 | 12 |
| 2008 | 9 | 13 |
| 2009 | 7 | 19 |
| 2010 | 13 | 27 |
| 2011 | 11 | 17 |
| 2012 | 20 | 22 |
| 2013 | 16 | 13 |
| 2014 | 23 | 15 |
| 2015 | 20 | 23 |
| 2016 | 19 | 8 |
| 2017 | 12 | 13 |
| 2018 | 13 | 12 |
| 2019 | 8 | 8 |
| 2020 | 12 | 12 |
| 2021 | 11 | 8 |
| 2022 | 7 | 7 |
| 2023 | 6 | 3 |
| 2024 | 3 | 0 |
| 2025 | 3 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine control system for intake valve opening timing during cold start11 Aug 2026US 12,704,099 B2Cummins Power Generation Inc.
- Control device and control method for variable valve timing mechanism29 Jul 2025US 12,372,015 B2Hitachi Astemo, Ltd.
- Reciprocating piston engine, and method for operating a reciprocating piston engine29 Jul 2025US 12,372,036 B2Schaeffler Technologies AG & Co. KG
- Dual fuel operating strategy for engine based on expected in-cylinder temperature progression4 Feb 2025US 12,215,639 B1Caterpillar Inc.
- Control device for variable valve timing mechanism and control method therefor3 Sep 2024US 12,078,117 B2Hitachi Astemo, Ltd.
- Engine control system for intake valve opening timing during cold start18 Sep 2025US 2025/0290459 A1Cummins Power Generation Inc.
- Reciprocating piston engine, and method for operating a reciprocating piston engine15 May 2025US 2025/0154908 A1Schaeffler Technologies AG & Co. KG
- Control Device for Variable Valve Timing Mechanism and Control Method Therefor19 Oct 2023US 2023/0332551 A1Hitachi Astemo, Ltd.
- Controller Device for Variable Valve Timing Apparatus10 Aug 2023US 2023/0250767 A1Hitachi Astemo, Ltd.
- Control Device22 Jun 2023US 2023/0193843 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Hybrid vehicle employing parallel hybrid system, using both internal combustion engine and electric motor for propulsion182US 6,026,921 ANissan Motor Co., Ltd. · 2000
- EGR system with dedicated EGR cylinders62US 8,291,891 B2Southwest Research Institute · 2012
- Valve timing control device and method for vehicle engine59US 6,341,584 B12002
- Internal combustion engine with variable camshaft timing and intake valve masking55US 5,950,582 AFord Global Technologies, LLC · 1999
- Direct injection type internal combustion engine55US 6,799,551 B2Kabushiki Kaisha Toyota Chuo Kenkyusho · 2004