Title:
COMBUSTION OSCILLATION CONTROL DEVICE AND METHOD, AND COMBUSTION CHAMBER
Document Type and Number:
WIPO Patent Application WO/2023/040061
Kind Code:
A1
Abstract:
A combustion oscillation control device and method, and a combustion chamber. The device comprises a control casing (11), which is internally provided with an adjustable channel mechanism (9) and an adjustable acoustic resonator (13), wherein an adjustable orifice plate (10) is arranged between the adjustable channel mechanism (9) and an outlet (11-2) in the control casing (11); and the adjustable channel mechanism (9) comprises a blocking portion (9-1) and a channel portion (9-2), the blocking cross-section of the blocking portion (9-1) in a radial direction of the control casing (11) can be adjusted, the channel length of the channel portion (9-2) in an axial direction of the control casing (11) can be adjusted, and the position of the adjustable orifice plate (10) in the axial direction of the control casing (11) can be adjusted. The device is mounted at an outlet of the combustion chamber, adjusts the amplitude and frequency of combustion oscillation of the combustion chamber by comprehensively regulating and controlling various parameters such as the cross-sectional area, the outlet length, the resonator intensity and the sound boundary of the outlet of the combustion chamber, realizes expected control over the amplitude and frequency of combustion oscillation of the combustion chamber, and can regulate and control different amplitudes for combustion oscillation at different frequencies.
Inventors:
HAN XIAO (CN)
HAN MENG (CN)
YAN XICHENG (CN)
LIN YUZHEN (CN)
HAN MENG (CN)
YAN XICHENG (CN)
LIN YUZHEN (CN)
Application Number:
PCT/CN2021/134928
Publication Date:
March 23, 2023
Filing Date:
December 02, 2021
Export Citation:
Assignee:
UNIV BEIHANG (CN)
International Classes:
F23N5/24; F23N5/26
Foreign References:
| CN103868095A | 2014-06-18 | |||
| US20050106519A1 | 2005-05-19 | |||
| CN113049263A | 2021-06-29 | |||
| US20020000343A1 | 2002-01-03 | |||
| EP0990851A1 | 2000-04-05 | |||
| CN109737450A | 2019-05-10 | |||
| CN104566477A | 2015-04-29 | |||
| CN102022351A | 2011-04-20 | |||
| US20020172904A1 | 2002-11-21 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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