F02D 2041/3881
With multiple common rails
Official title: {with multiple common rails, e.g. one rail per cylinder bank, or a high pressure rail and a low pressure rail}
F02D2041/3881 (With multiple common rails) appears on 159 US grants and 149 published applications in this corpus.
Search patents in F02D- Granted patents
- 159
- Published applications
- 149
- Assignees
- 48
- Inventors
- 269
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 9 | 7 |
| 2003 | 6 | 5 |
| 2004 | 4 | 1 |
| 2005 | 0 | 7 |
| 2006 | 9 | 11 |
| 2007 | 5 | 8 |
| 2008 | 10 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 3 | 2 |
| 2012 | 3 | 4 |
| 2013 | 2 | 1 |
| 2014 | 2 | 8 |
| 2015 | 3 | 8 |
| 2016 | 8 | 26 |
| 2017 | 17 | 13 |
| 2018 | 16 | 14 |
| 2019 | 13 | 8 |
| 2020 | 11 | 6 |
| 2021 | 8 | 6 |
| 2022 | 11 | 4 |
| 2023 | 3 | 1 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel control system for internal combustion engine having multiple injection systems22 Apr 2025US 12,281,622 B1GM Global Technology Operations LLC
- High pressure regulated fuel return apparatus for engines using direct injection fuel systems18 Mar 2025US 12,253,042 B2ICOM North America LLC
- Engine6 Aug 2024US 12,055,116 B2Mitsubishi Heavy Industries, Ltd.
- Systems and methods for pilot fuel synthesis11 Jun 2024US 12,006,886 B1Caterpillar Inc.
- Direct-injection, applied-ignition internal combustion engine with injection device arranged in the cylinder liner, and method for operating an internal combustion engine of said type12 Mar 2024US 11,927,148 B2Ford Global Technologies, LLC
- Fuel system with direct and high pressure port fuel injection with thermal management28 May 2026US 2026/0146578 A1Stanadyne Operating Company LLC
- Dual fuel system for engine having fuel-actuated fuel pump and method27 Mar 2025US 2025/0101926 A1Caterpillar Inc.
- High pressure regulated fuel return apparatus for engines using direct injection fuel systems26 Sep 2024US 2024/0318609 A1ICOM North America LLC
- Engine19 Jan 2023US 2023/0019112 A1Mitsubishi Heavy Industries, Ltd.
- Methods and systems for improving fuel injection repeatability29 Dec 2022US 2022/0412283 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Accumulator-type fuel injection system66US 5,732,679 AIsuzu Motors Limited · 1998
- Fuel injection system for a multi-cylinder diesel engine58US 5,433,182 AMercedes-Benz AG · 1995
- Fuel injection arrangement for internal combustion engines51US 5,456,233 ARobert Bosch GmbH · 1995
- Accumulator fuel injection system44US 5,727,525 ANippon Soken, Inc. · 1998
- Fuel injection device42US 6,112,721 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 2000