F04C 14/065
Capacity control using a multiplicity of units or pumping capacities
Official title: {Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable}
F04C14/065 (Capacity control using a multiplicity of units or pumping capacities) appears on 27 US grants and 29 published applications in this corpus.
Search patents in F04C- Granted patents
- 27
- Published applications
- 29
- Assignees
- 26
- Inventors
- 66
- Latest grant
- 14 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 6 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 4 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 1 |
| 2015 | 3 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pump assembly for a vehicle, and control system for a pump assembly and method14 Feb 2023US 11,578,720 B2Hanon Systems Efp Deutschland GmbH
- Transfer device5 May 2020US 10,641,266 B2Aisin Aw Co., Ltd.
- Scalable hydraulic motor with drive input shaft and driven output shaft19 Mar 2019US 10,233,925 B2
- Coating device and associated operating method28 Mar 2017US 9,604,244 B2Dürr Systems AG
- Two rotor vane pump21 Mar 2017US 9,599,108 B2GM Global Technology Operations LLC
- Pump assembly for a vehicle, and control system for a pump assembly and method12 Nov 2020US 2020/0355183 A1Hanon Systems Efp Deutschland GmbH
- Rotary combustion engine rotor deactivation and method16 Jan 2020US 2020/0018228 A1
- Scalable hydraulic motor with drive input shaft and driven output shaft28 Dec 2017US 2017/0370360 A1
- Transfer device14 Dec 2017US 2017/0356444 A1Aisin Aw Co., Ltd.
- Two rotor vane pump29 Dec 2016US 2016/0377077 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Oil pump pressure control device85US 8,038,416 B2Yamada Manufacturing Co., Ltd. · 2011
- Controlled suction unloading in a scroll compressor64US 4,431,388 AThe Trane Company · 1984
- Balanced vane type oil pumps15US 4,838,767 AJidosha Kiki Co., Ltd. · 1989
- Oil supply system for engine13US 7,011,069 B2Aisin Seiki Kabushiki Kaisha · 2006
- Controlled output gear pump and motor11US 3,951,575 AKabushiki Kaisha Komatsu Seisakusho · 1976