Invention Grant
US09169804B2 Duct and method for damping pressure waves caused by thermoacoustic instability
有权
用于阻止由热声不稳定性引起的压力波的管道和方法
- Patent Title: Duct and method for damping pressure waves caused by thermoacoustic instability
- Patent Title (中): 用于阻止由热声不稳定性引起的压力波的管道和方法
-
Application No.: US14314821Application Date: 2014-06-25
-
Publication No.: US09169804B2Publication Date: 2015-10-27
- Inventor: Jochen Rupp , Anthony John Moran
- Applicant: ROLLS-ROYCE PLC
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1312840.0 20130718
- Main IPC: F02K1/00
- IPC: F02K1/00 ; F02K1/34 ; F23R3/00
Abstract:
A duct and a method for damping pressure waves caused by thermoacoustic instability, the duct comprising: a locking Helmholtz resonator positioned on the circumference of the duct, the locking Helmholtz resonator tuned to a first frequency; and one or more damping Helmholtz resonators positioned on the circumference of the duct at or adjacent to 90 and/or 270 degrees from the locking Helmholtz resonator, wherein the damping Helmholtz resonators are tuned to a second frequency which is different from the first frequency of the locking Helmholtz resonator.
Public/Granted literature
- US20150021117A1 DUCT AND METHOD FOR DAMPING PRESSURE WAVES CAUSED BY THERMOACOUSTIC INSTABILITY Public/Granted day:2015-01-22
Information query
