-
公开(公告)号：US20130298686A1
公开(公告)日：2013-11-14
申请号：US13978308
申请日：2012-01-03
IPC分类号： G01H1/00
摘要： A monitoring device for monitoring rotors of turbines, including: an acoustic sensor; and a sound waveguide for connecting the acoustic sensor to a sensing point close to the rotor of the turbine. The acoustic sensor is configured to detect, as soundwaves, pressure fluctuations due to pressure differences between suction and pressure sides of blades of the rotor as they move past in proximity of a sensing point. A method of monitoring a rotor of a turbine transmits pressure fluctuations due to pressure differences between suction sides and pressure sides of blades of the rotor going past the proximity of a sensing point by a sound waveguide to an acoustic sensor to be picked up as soundwaves.
摘要翻译： 一种用于监测涡轮转子的监测装置，包括：声传感器; 以及用于将声学传感器连接到靠近涡轮机的转子的感测点的声波导。 声传感器被配置为检测作为声波的波动，由于当转子的叶片在感测点附近移动过去时，由于转子叶片的吸力侧和压力侧之间的压力差引起的压力波动。 监测涡轮机的转子的方法由于吸力侧和转子叶片的压力侧之间的压力差通过声波导到感测点的附近而传递到声传感器以被拾取为声波的压力波动。
-
2.发明授权Gas-guiding pipe comprising a noise-attenuating covering with variable porosity 有权导气管包括具有可变孔隙率的噪声衰减覆盖层公开(公告)号：US08701822B2
公开(公告)日：2014-04-22
申请号：US13578742
申请日：2011-02-11
IPC分类号： E04F17/04
CPC分类号： F02K1/827 , F02C7/045 , F05D2220/329 , F05D2260/96
摘要： A noise-attenuating covering configured for example for a pipe for guiding gases along a gas path. The covering includes a wall defining the gas path and at least one resonance cavity, the wall being pierced with holes for fluid communication between the gas path and the resonance cavity to attenuate noise. The holes have substantially identical diameters and, since the pipe is arranged to guide the gases in the downstream direction, a number of the openings per wall surface unit decreases continuously along the gas path in the downstream direction, such as to confer on the wall substantially constant acoustic resistance along the gas path, for which the noise attenuation is optimized along the gas path.
摘要翻译： 噪声衰减的覆盖物，例如用于沿着气体路径引导气体的管道。 覆盖物包括限定气体路径的壁和至少一个共振腔，该壁被穿透孔，用于气体路径和谐振腔之间的流体连通以衰减噪声。 这些孔具有基本上相同的直径，并且由于管布置成沿着下游方向引导气体，所以每个壁表面单元的多个开口沿下游方向的气体路径连续地减小，从而基本上赋予壁 沿着气体路径具有恒定的声阻，噪声衰减沿气体路径被优化。
-
3.发明申请公开(公告)号：US20130000770A1
公开(公告)日：2013-01-03
申请号：US13578742
申请日：2011-02-11
IPC分类号： F16L9/21
CPC分类号： F02K1/827 , F02C7/045 , F05D2220/329 , F05D2260/96
摘要： A noise-attenuating covering configured for example for a pipe for guiding gases along a gas path. The covering includes a wall defining the gas path and at least one resonance cavity, the wall being pierced with holes for fluid communication between the gas path and the resonance cavity to attenuate noise. The holes have substantially identical diameters and, since the pipe is arranged to guide the gases in the downstream direction, a number of the openings per wall surface unit decreases continuously along the gas path in the downstream direction, such as to confer on the wall substantially constant acoustic resistance along the gas path, for which the noise attenuation is optimized along the gas path.
摘要翻译： 噪声衰减的覆盖物，例如用于沿着气体路径引导气体的管道。 覆盖物包括限定气体路径的壁和至少一个共振腔，该壁被穿透孔，用于气体路径和谐振腔之间的流体连通以衰减噪声。 这些孔具有基本上相同的直径，并且由于管布置成沿着下游方向引导气体，所以每个壁表面单元的多个开口沿下游方向的气体路径连续地减小，从而基本上赋予壁 沿着气体路径具有恒定的声阻，噪声衰减沿气体路径被优化。
-
4.发明申请DEVICE FOR EJECTING GAS FROM A GAS TURBINE ENGINE AND GAS TURBINE ENGINE 审中-公开用于从气体涡轮发动机和气体涡轮发动机喷射气体的装置公开(公告)号：US20130000748A1
公开(公告)日：2013-01-03
申请号：US13578754
申请日：2011-02-09
IPC分类号： B23P11/00
CPC分类号： F02C7/24 , F01D25/30 , F01N1/02 , F02K1/827 , F05D2220/90 , F05D2260/96 , Y10T137/598
摘要： A device for ejecting gas from a gas turbine engine, which includes: an outer wall and an inner wall defining a gas flow path therebetween, the inner wall forming a central body defining an inner cavity, the outer wall being perforated and communicating with at least one outer resonance cavity for attenuating noise in a first range of sound frequencies; and a mechanism for placing the outer and inner cavities in fluid communication, extending through the gas flow path, the inner cavity thus forming a resonance cavity for attenuating the noise in a second range of sound frequencies. The device can, for example, be used to attenuate two ranges of sound frequencies.
摘要翻译： 一种用于从燃气涡轮发动机喷射气体的装置，其包括：外壁和限定其间的气体流路的内壁，所述内壁形成限定内腔的中心体，所述外壁被穿孔并至少与所述内壁连通 一个外共振腔，用于衰减第一声频范围内的噪声; 以及用于将外腔和内腔放置成流体连通的机构，延伸穿过气体流动路径，内腔由此形成谐振腔，用于在第二声频范围内衰减噪声。 该装置可以例如用于衰减两个声音频率范围。
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
