F23D 2900/00015
Pilot burners specially adapted for low load or transient conditions
Official title: Pilot burners specially adapted for low load or transient conditions, e.g. for increasing stability
F23D2900/00015 (Pilot burners specially adapted for low load or transient conditions) appears on 92 US grants and 90 published applications in this corpus.
Search patents in F23D- Granted patents
- 92
- Published applications
- 90
- Assignees
- 58
- Inventors
- 226
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 3 |
| 2003 | 3 | 2 |
| 2004 | 3 | 7 |
| 2005 | 1 | 4 |
| 2006 | 6 | 3 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 2 | 6 |
| 2011 | 1 | 8 |
| 2012 | 3 | 6 |
| 2013 | 7 | 7 |
| 2014 | 1 | 7 |
| 2015 | 7 | 2 |
| 2016 | 9 | 7 |
| 2017 | 3 | 3 |
| 2018 | 5 | 3 |
| 2019 | 3 | 3 |
| 2020 | 4 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 3 | 0 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Free-jet burner and method for low CO2, NOx, and CO emissions21 Oct 2025US 12,449,122 B2Zeeco, Inc.
- Method of using a primary fuel to pilot liquid fueled combustors24 Sep 2024US 12,098,678 B2Rtx Corporation
- Burner and assembly of compact burners21 May 2024US 11,988,378 B2Fives Pillard
- Method of using a primary fuel to pilot liquid fueled combustors16 Apr 2024US 11,959,420 B2Rtx Corporation
- Method of using a primary fuel to pilot liquid fueled combustors21 Nov 2023US 11,821,368 B2Rtx Corporation
- Dual-Fuel Burner and Method of Operation20 Feb 2025US 2025/0060098 A1Air Products and Chemicals, Inc.
- Free-jet burner and method for low co2, nox, and co emissions16 May 2024US 2024/0159392 A1Zeeco, Inc.
- Combustor nozzle assembly and gas turbine combustor including same20 Jan 2022US 2022/0018542 A1Doosan Heavy Industries Construction Co., Ltd
- Low emissions combustor assembly for gas turbine engine11 Nov 2021US 2021/0348560 A1Raytheon Technologies Corporation
- Method of using a primary fuel to pilot liquid fueled combustors8 Jul 2021US 2021/0207541 A1United Technologies Corporation
Most cited
By later US patents
- Piloted airblast lean direct fuel injector88US 6,272,840 B1CFD Research Corporation · 2001
- Mixer having multiple swirlers83US 6,363,726 B1General Electric Company · 2002
- Pre-mix nozzle and full ring fuel distribution system for a gas turbine combustor49US 6,446,439 B1Power Systems Mfg., LLC · 2002
- Methods and apparatus for decreasing combustor emissions with swirl stabilized mixer46US 6,481,209 B1General Electric Company · 2002
- Pilot nozzle steam injection for reduced NO.sub.x emissions, and method45US 5,987,875 ASiemens Westinghouse Power Corporation · 1999