F02B 23/0633
The combustion space being almost completely enclosed in the piston, i.e. having
Official title: {the combustion space being almost completely enclosed in the piston, i.e. having a small inlet in comparison to its volume}
F02B23/0633 (The combustion space being almost completely enclosed in the piston, i.e. having) appears on 26 US grants and 21 published applications in this corpus.
Search patents in F02B- Granted patents
- 26
- Published applications
- 21
- Assignees
- 11
- Inventors
- 39
- Latest grant
- 5 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 3 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 2 |
| 2019 | 2 | 0 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Engine system for emission reduction without aftertreatment5 Apr 2022US 11,293,339 B2Cummins Inc.
- Combustion chamber structure for engine1 Dec 2020US 10,851,702 B2Mazda Motor Corporation
- Engine system for emission reduction without aftertreatment27 Oct 2020US 10,815,871 B2Cummins Inc.
- Charge-fed pre-chamber assembly24 Mar 2020US 10,598,079 B2Cummins Inc.
- Opposed piston engine14 May 2019US 10,287,971 B2
- Piston for an internal combustion engine11 Dec 2025US 2025/0376962 A1Volvo Truck Corporation
- Engine system for emission reduction without aftertreatment11 Feb 2021US 2021/0040880 A1Cummins Inc.
- Combustion chamber structure for engine21 May 2020US 2020/0158006 A1Mazda Motor Corporation
- Engine system for emission reduction without aftertreatment16 Jan 2020US 2020/0018223 A1Cummins Inc.
- Charge-fed pre-chamber assembly13 Sep 2018US 2018/0258835 A1Cummins Inc.
Most cited
By later US patents
- Hybrid electric vehicle127US 5,881,559 AIsuzu Ceramics Research Institute Co., Ltd. · 1999
- Combustion chamber constructions for opposed-piston engines26US 8,800,528 B2Achates Power, Inc. · 2014
- Fuel injection spray patterns for opposed-piston engines17US 8,820,294 B2Achates Power, Inc. · 2014
- Swirl-conserving combustion chamber construction for opposed-piston engines15US 9,512,779 B2Achates Power, Inc. · 2016
- Energy-cell combustion system14US 7,040,279 B22006