Invention Application
WO2015047622A1 APPARATUS FOR ACOUSTIC DAMPING AND OPERATIONAL CONTROL OF DAMPING, COOLING, AND EMISSIONS IN A GAS TURBINE ENGINE
审中-公开
气体发动机的阻尼，冷却和排放的呼吸阻尼和运行控制装置
- Patent Title: APPARATUS FOR ACOUSTIC DAMPING AND OPERATIONAL CONTROL OF DAMPING, COOLING, AND EMISSIONS IN A GAS TURBINE ENGINE
- Patent Title (中): 气体发动机的阻尼，冷却和排放的呼吸阻尼和运行控制装置
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Application No.: PCT/US2014/052593Application Date: 2014-08-26
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Publication No.: WO2015047622A1Publication Date: 2015-04-02
- Inventor: SCHILP, Reinhard
- Applicant: SIEMENS AKTIENGESELLSCHAFT , SIEMENS ENERGY, INC.
- Applicant Address: Wittelsbacherplatz 2 80333 München DE
- Assignee: SIEMENS AKTIENGESELLSCHAFT,SIEMENS ENERGY, INC.
- Current Assignee: SIEMENS AKTIENGESELLSCHAFT,SIEMENS ENERGY, INC.
- Current Assignee Address: Wittelsbacherplatz 2 80333 München DE
- Agency: SWANSON, Erik, C. et al.
- Priority: US14/037,445 20130926
- Main IPC: F02C7/24
- IPC: F02C7/24 ; F02K1/82 ; F01D9/02
Abstract:
Acoustic damping resonators (60, 62, 76, 78) formed in pockets (32) between reinforcing ribs (30) in a grid of ribs on the outer surface of a wall (74) surrounding a combustion gas flow path (18). Each resonator has a perforated cover plate (64A-C) spanning between sides formed by the ribs (30). Film cooling exit holes (44) are provided in the wall (74) under each resonator. Resonating chambers (48A-C) of different volumes may be provided on the wall to damp different unwanted frequencies. Different sets of resonators with different volumes may be separately controlled by respective airflow control manifolds (66) via throttle valves (68, T1-T3). Control logic (70) may control the valves based on frequency/airflow response functions (80, 82) for each size of resonator to optimize damping and cooling and to lower emissions over varying engine operating conditions.
Information query
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