Title:
CENTER-STAGED COMBUSTION CHAMBER BASED ON SELF-EXCITATION SWEEP OSCILLATION FUEL NOZZLES
Document Type and Number:
WIPO Patent Application WO/2023/273305
Kind Code:
A1
Abstract:
The present invention provides a center-staged combustion chamber based on self-excitation sweep oscillation fuel nozzles, comprising an outer housing internally provided with a cavity, a primary combustion stage coaxially arranged with the outer housing, and a pre-combustion stage coaxially arranged with the outer housing. Moreover, an annular fuel channel is used for connecting a plurality of self-excitation sweep oscillation fuel nozzles, and the self-excitation sweep oscillation fuel nozzles are suitable for injecting oscillation fuel to a first-stage swirling channel. The fuel is output in a fan shape by means of the self-excitation sweep oscillation fuel nozzles, and is dispersed by an incoming swirl flow passing through the swirling channel, such that the atomization performance and spatial distribution uniformity of the fuel can be greatly improved. Moreover, in the present invention, the annular fuel channel is further provided inside a main body portion of the primary combustion stage, and the fuel channel is connected to a fuel conveying pipe and communicated with the self-excitation sweep oscillation fuel nozzles, such that the compact and miniaturized structural design is achieved.
Inventors:
WANG SHIQI (CN)
WEN QUAN (CN)
HAN XIAO (CN)
YANG QIAN (CN)
WEN QUAN (CN)
HAN XIAO (CN)
YANG QIAN (CN)
Application Number:
PCT/CN2022/071872
Publication Date:
January 05, 2023
Filing Date:
January 13, 2022
Export Citation:
Assignee:
AERO ENGINE ACAD OF CHINA (CN)
International Classes:
F23R3/38
Foreign References:
| CN113464982A | 2021-10-01 | |||
| CN215175236U | 2021-12-14 | |||
| CN107559881A | 2018-01-09 | |||
| CN104549805A | 2015-04-29 | |||
| CN105180215A | 2015-12-23 | |||
| JP2002067888A | 2002-03-08 | |||
| CN105435976A | 2016-03-30 |
Attorney, Agent or Firm:
BEIJING UNIPAT INTELLECTUAL PROPERTY LAW FIRM (CN)
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