F02B 23/0693
The combustion space consisting of step-wise widened multiple zones of different depth
Official title: {the combustion space consisting of step-wise widened multiple zones of different depth}
F02B23/0693 (The combustion space consisting of step-wise widened multiple zones of different depth) appears on 65 US grants and 79 published applications in this corpus.
Search patents in F02B- Granted patents
- 65
- Published applications
- 79
- Assignees
- 41
- Inventors
- 198
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 3 | 4 |
| 2012 | 3 | 4 |
| 2013 | 3 | 6 |
| 2014 | 5 | 6 |
| 2015 | 3 | 6 |
| 2016 | 6 | 4 |
| 2017 | 1 | 4 |
| 2018 | 7 | 4 |
| 2019 | 4 | 5 |
| 2020 | 8 | 15 |
| 2021 | 5 | 4 |
| 2022 | 4 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Piston for a reciprocating piston machine, and reciprocating piston machine for a motor vehicle17 Sep 2024US 12,092,053 B2Mercedes-Benz Group AG
- Method for operating an internal combustion engine for a motor vehicle, and internal combustion engine for a motor vehicle27 Sep 2022US 11,454,191 B2Daimler AG
- Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile15 Mar 2022US 11,274,628 B2Caterpillar Inc.
- Engine system25 Jan 2022US 11,230,991 B2Mazda Motor Corporation
- Piston Bowl For An Internal Combustion Engine20 Aug 2026US 2026/0243215 A1Perkins Engines Company Limited
- Piston for reciprocating within a cylinder in an internal combustion engine18 Jun 2026US 2026/0168460 A1Cummins Inc.
- Piston for diesel engines with optimized combustion chamber20 Mar 2025US 2025/0092817 A1Dumarey Automotive Italia S.p.A.
- Control method for combustion system, combustion system and engine1 Aug 2024US 2024/0254939 A1Weichai Power Co., Ltd.
- Piston for a Reciprocating Piston Machine, and Reciprocating Piston Machine for a Motor Vehicle29 Sep 2022US 2022/0307445 A1Mercedes-Benz Group AG
Most cited
By later US patents
- Piston for internal combustion engines31US 6,314,933 B1Komatsu Ltd. · 2001
- Structure of combustion chamber in diesel engine29US 4,721,080 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1988
- Method for operating an internal combustion engine and internal combustion engine for such a method27US 7,942,126 B2Daimler AG · 2011
- Closed gallery piston having con rod lubrication24US 6,539,910 B1Federal-Mogul World Wide, Inc. · 2003
- Piston bowl with spray jet targets23US 8,459,229 B2Southwest Research Institute · 2013