F02M 47/02
Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure: of
Official title: of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
F02M47/02 (Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure: of) appears on 1,317 US grants and 1,140 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,317
- Published applications
- 1,140
- Assignees
- 207
- Inventors
- 1,538
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 16 | 0 |
| 1996 | 11 | 0 |
| 1997 | 24 | 0 |
| 1998 | 36 | 0 |
| 1999 | 34 | 0 |
| 2000 | 54 | 0 |
| 2001 | 50 | 19 |
| 2002 | 58 | 74 |
| 2003 | 77 | 106 |
| 2004 | 100 | 109 |
| 2005 | 77 | 58 |
| 2006 | 60 | 87 |
| 2007 | 59 | 68 |
| 2008 | 43 | 57 |
| 2009 | 40 | 68 |
| 2010 | 28 | 75 |
| 2011 | 45 | 34 |
| 2012 | 25 | 43 |
| 2013 | 43 | 47 |
| 2014 | 32 | 32 |
| 2015 | 43 | 32 |
| 2016 | 31 | 42 |
| 2017 | 30 | 23 |
| 2018 | 28 | 22 |
| 2019 | 32 | 24 |
| 2020 | 23 | 37 |
| 2021 | 33 | 21 |
| 2022 | 31 | 15 |
| 2023 | 18 | 12 |
| 2024 | 10 | 12 |
| 2025 | 16 | 15 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Injector for injecting fuel30 Jun 2026US 12,669,100 B2Liebherr-Components Deggendorf GmbH
- Trusted and decentralized aggregation for federated learning3 Feb 2026US 12,541,708 B2International Business Machines Corporation
- Fuel injector internal combustion engine and vehicle16 Dec 2025US 12,497,938 B2Scania CV AB
- Dual fuel system having dual fuel injector and engine operating method9 Dec 2025US 12,492,670 B2Caterpillar Inc.
- Dual fuel system and method feeding same fuel at two pressures to fuel injector2 Dec 2025US 12,486,810 B1Caterpillar Inc.
- Dual-fuel injector17 Sep 2026US 2026/0275946 A1Phinia Delphi Luxembourg Sarl
- Electromagnetic actuator and fuel injection device23 Jul 2026US 2026/0210319 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Dual fuel injector for injection control and fuel metering, and method for operating same7 May 2026US 2026/0126025 A1Caterpillar Inc.
- Fuel injector nozzle, fuel injector, internal combustion engine, and vehicle23 Apr 2026US 2026/0110284 A1Scania CV AB
- Dual fuel injector and method26 Mar 2026US 2026/0085650 A1Caterpillar Inc.
Most cited
By later US patents
- High speed fuel injector106US 5,460,329 A1995
- Pressure storage fuel injection system102US 5,622,152 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke99US 5,779,149 ASiemens Automotive Corporation · 1998
- Fuel injector for an internal combustion engine88US 4,603,671 ANippon Soken, Inc. · 1986
- Pressure-controlled fuel injection for internal combustion engines86US 4,628,881 ABKM, Inc. · 1986