F01C 21/001
Injection of a fluid in the working chamber for sealing, cooling and
Official title: {Injection of a fluid in the working chamber for sealing, cooling and lubricating (sealing only F01C17/00; lubrication only F01C21/04; cooling only F01C21/06; injecting water or steam in internal combustion engines F02B47/02, F02D21/00, F02M25/00)}
F01C21/001 (Injection of a fluid in the working chamber for sealing, cooling and) appears on 14 US grants and 16 published applications in this corpus.
Search patents in F01C- Granted patents
- 14
- Published applications
- 16
- Assignees
- 13
- Inventors
- 39
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 3 |
| 2020 | 1 | 0 |
| 2021 | 4 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Rotary fluid flow device28 Mar 2023US 11,614,089 B2
- Rotary engine lubrication system using intensifier injector16 Nov 2021US 11,174,732 B1Pratt & Whitney Canada Corp.
- Gas expansion device and method for expanding gas26 Oct 2021US 11,156,088 B2Atlas Copco Airpower, Naamloze Vennootschap
- Liquid-injected compressor or expander element and method for controlling the liquid injection of a compressor or expander device19 Oct 2021US 11,149,733 B2Atlas Copco Airpower, Naamloze Vennootschap
- Rotary fluid flow device13 Apr 2021US 10,975,869 B2Exponential Technologies, Inc.
- Rotary engine lubrication system using intensifier injector18 Nov 2021US 2021/0355898 A1Pratt & Whitney Canada Corp.
- Rotary Fluid Flow Device30 Sep 2021US 2021/0301825 A1
- Gas expansion device and method for expanding gas8 Jul 2021US 2021/0207482 A1Atlas Copco Airpower, Naamloze Vennootschap
- Liquid-injected compressor or expander element and method for controlling the liquid injection of a compressor or expander device17 Oct 2019US 2019/0316585 A1Atlas Copco Airpower, Naamloze Vennootschap
- Fuel-air injection rotary engine3 Oct 2019US 2019/0301361 A1
Most cited
By later US patents
- Scroll type fluid machine having intermittent oil feed to working chamber19US 5,249,941 ADaikin Industries, Ltd. · 1993
- Rotary machine7US 9,822,642 B2Lumenium LLC · 2017
- Water injection type screw fluid machine4US 8,556,606 B2Kobe Steel, Ltd. · 2013
- Rotary fluid flow device3US 10,975,869 B2Exponential Technologies, Inc. · 2021
- Compressor with liquid injection cooling3US 8,794,941 B2Oscomp Systems Inc. · 2014