F02M 37/0041
Means for damping pressure pulsations
Official title: {Means for damping pressure pulsations (equalisation of pulses in positive displacement pumps F04B1/00; devices for damping fluid pulsations in pipes F16L55/04)}
F02M37/0041 (Means for damping pressure pulsations) appears on 143 US grants and 127 published applications in this corpus.
Search patents in F02M- Granted patents
- 143
- Published applications
- 127
- Assignees
- 81
- Inventors
- 330
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 3 |
| 2003 | 6 | 2 |
| 2004 | 2 | 4 |
| 2005 | 5 | 7 |
| 2006 | 5 | 6 |
| 2007 | 6 | 6 |
| 2008 | 3 | 5 |
| 2009 | 3 | 4 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 6 |
| 2013 | 5 | 5 |
| 2014 | 4 | 11 |
| 2015 | 4 | 8 |
| 2016 | 10 | 6 |
| 2017 | 8 | 10 |
| 2018 | 6 | 9 |
| 2019 | 7 | 11 |
| 2020 | 8 | 2 |
| 2021 | 8 | 5 |
| 2022 | 4 | 5 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-pressure GDI pump with low-pressure bypass20 May 2025US 12,305,598 B2Stanadyne Operating Company LLC
- Fuel injection device4 Mar 2025US 12,241,442 B2Robert Bosch GmbH
- Pressure damping device for a fluid circuit22 Oct 2024US 12,123,382 B2Hutchinson
- Testing apparatus for a fuel injector18 Apr 2023US 11,629,680 B2Delphi Technologies IP Limited
- Fuel system for an internal combustion engine27 Dec 2022US 11,536,233 B2Delphi Technologies IP Limited
- High Pressure Fuel Pump With Configuration To Mitigate Cavitation9 Jul 2026US 2026/0194033 A1
- Supply pipe for vehicular gaseous fuel13 Feb 2025US 2025/0052353 A1Usui Co., Ltd.
- Fuel injection device11 Apr 2024US 2024/0117784 A1Robert Bosch GmbH
- Pressure damping device for a fluid circuit12 Oct 2023US 2023/0323844 A1Hutchinson
- High-Pressure GDI Pump With Low-Pressure Bypass5 Oct 2023US 2023/0313770 A1Stanadyne, Inc.
Most cited
By later US patents
- Pressure control valve for a fuel system56US 5,727,529 AWalbro Corporation · 1998
- Electronic fuel injection system for an internal combustion engine having electromagnetic valves and a fuel damper upstream thereof50US 4,205,637 AToyota Jidosha Kogyo Kabushiki Kaisha · 1980
- Fuel hose and method for manufacturing fuel hose42US 6,523,576 B2Toyoda Gosei Co., Ltd. · 2003
- Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism42US 8,393,881 B2Hitachi, Ltd. · 2013
- Damper element33US 4,729,360 ARobert Bosch GmbH · 1988