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1. 发明授权

US5932940A Microturbomachinery 失效
标题翻译：微型机械
公开(公告)号：US5932940A
公开(公告)日：1999-08-03
申请号：US749454
申请日：1996-11-15
申请人： Alan H. Epstein , Stephen D. Senturia , Ian A. Waitz , Jeffrey H. Lang , Stuart A. Jacobson , Fredric F. Ehrich , Martin A. Schmidt , G. K. Ananthasuresh , Mark S. Spearing , Kenneth S. Breuer , Steven F. Nagle
发明人： Alan H. Epstein , Stephen D. Senturia , Ian A. Waitz , Jeffrey H. Lang , Stuart A. Jacobson , Fredric F. Ehrich , Martin A. Schmidt , G. K. Ananthasuresh , Mark S. Spearing , Kenneth S. Breuer , Steven F. Nagle
IPC分类号： F01D5/28 , F01D15/06 , F01D25/20 , F01K13/00 , F02C3/05 , F02K9/48 , F23R3/42 , H01L29/84 , F02C3/04 , H02K29/00
CPC分类号： F23R3/42 , F01D15/06 , F01D25/20 , F01D5/28 , F01K13/00 , F02C3/05 , F02K9/48 , F05D2220/50 , F05D2230/14 , F05D2250/82 , F05D2250/84 , F05D2300/2261 , F05D2300/2283 , F05D2300/607 , F23C2900/03001
摘要： The invention provides a micro-gas turbine engine and associated microcomponentry. The engine components, including, e.g., a compressor, a diffuser having diffuser vanes, a combustion chamber, turbine guide vanes, and a turbine are each manufactured by, e.g., microfabrication techniques, of a structural material common to all of the elements, e.g., a microelectronic material such as silicon or silicon carbide. Vapor deposition techniques, as well as bulk wafer etching techniques, can be employed to produce the engine. The engine includes a rotor having a shaft with a substantially untapered compressor disk on a first end, defining a centrifugal compressor, and a substantially untapered turbine disk on the opposite end, defining a radial inflow turbine. The rotor is preferably formed of a material characterized by a strength-to-density ratio that enables a rotor speed of at least about 500,000 rotations per minute. An annular, axial-flow combustion chamber is provided that is located axially between the compressor and turbine disks and that has a ratio of annular height to axial length of at least about 0.5. The micro-gas turbine engine can be configured with an integral microgenerator as a source of electrical power, and can be employed for a wide range of power, propulsion, and thermodynamic cycle applications.
摘要翻译：本发明提供了一种微型燃气涡轮发动机和相关的微型部件。包括例如压缩机，具有扩散器叶片的扩散器，燃烧室，涡轮引导叶片和涡轮机的发动机部件各自通过例如微细加工技术制造所有元件共有的结构材料，例如，微电子材料如硅或碳化硅。可以采用气相沉积技术以及体晶片蚀刻技术来生产发动机。发动机包括具有轴的转子，该轴具有在第一端上具有基本上未经紧固的压缩机盘，限定离心式压缩机，以及在相对端上限定径向流入涡轮机的基本上未配套的涡轮盘。转子优选由特征在于强度与密度之比的材料形成，其能够使转子速度为每分钟至少约50万转。提供了一种环形的轴向流动燃烧室，其轴向位于压缩机和涡轮盘之间，并且具有至少约0.5的环形高度与轴向长度的比率。微型燃气涡轮发动机可以配置有作为电力源的整体微型发电机，并且可以用于广泛的功率，推进和热力循环应用。

2. 发明授权

US06392313B1 Microturbomachinery 失效
标题翻译：微型机械
公开(公告)号：US06392313B1
公开(公告)日：2002-05-21
申请号：US09354544
申请日：1999-07-15
申请人： Alan H. Epstein , Stephen D. Senturia , Ian A. Waitz , Jeffrey H. Lang , Stuart A. Jacobson , Fredric F. Ehrich , Martin A. Schmidt , G. K. Ananthasuresh , Mark S. Spearing , Kenneth S. Breuer , Steven F. Nagle
发明人： Alan H. Epstein , Stephen D. Senturia , Ian A. Waitz , Jeffrey H. Lang , Stuart A. Jacobson , Fredric F. Ehrich , Martin A. Schmidt , G. K. Ananthasuresh , Mark S. Spearing , Kenneth S. Breuer , Steven F. Nagle
IPC分类号： H01L2984
CPC分类号： F23R3/42 , F01D5/28 , F01D15/06 , F01D25/20 , F01K13/00 , F02C3/05 , F02K9/48 , F05D2220/50 , F05D2230/14 , F05D2250/82 , F05D2250/84 , F05D2300/2261 , F05D2300/2283 , F05D2300/607 , F23C2900/03001
摘要： The invention overcomes limitations of conventional power and thermodynamic sources by with micromachinery components that enable production of significant power and efficient operation of thermodynamic systems in the millimeter and micron regime to meet the efficiency, mobility, modularity, weight, and cost requirements of many modern applications. A micromachine of the invention has a rotor disk journalled for rotation in a stationary structure by a journal bearing. A plurality of radial flow rotor blades, substantially untapered in height, are disposed on a first rotor disk face, and an electrically conducting region is disposed on a rotor disk face. A plurality of stator electrodes that are electrically interconnected to define multiple electrical stator phases are disposed on a wall of the stationary structure located opposite the electrically conducting region of the rotor disk. A first orifice in the stationary structure provides fluidic communication with the first rotor disk face at a location radially central of the rotor blades, and a second orifice in the stationary structure provides fluidic communication with the first rotor disk face at a location radially peripheral of the rotor blades. An electrical connection to the stator electrode configuration is provided for stator electrode excitation and for power transfer with the stator electrode configuration as the rotor disk rotates.
摘要翻译：本发明克服了常规功率和热力学源的限制，其中微机械组件能够在毫米和微米范围内产生显着功率和热力系统的有效运行，以满足许多现代应用的效率，移动性，模块化，重量和成本要求。本发明的微型机械具有转轴，该转子盘通过轴颈轴承在静止结构中旋转。基本上没有高度的多个径流式转子叶片设置在第一转子盘面上，导电区域设置在转子盘面上。电气互连以限定多个电定子相的多个定子电极设置在固定结构的与转子盘的导电区域相对的位置的壁上。固定结构中的第一孔口在转子叶片的径向中心的位置处提供与第一转子盘面的流体连通，并且固定结构中的第二孔口在第一转子盘面的径向周边的位置处提供与第一转子盘面的流体连通转子叶片。提供与定子电极配置的电连接用于定子电极激励和用于当转子盘旋转时具有定子电极配置的功率传递。

3. 发明授权

US6004095A Reduction of turbomachinery noise 失效
标题翻译：减少涡轮机噪音
公开(公告)号：US6004095A
公开(公告)日：1999-12-21
申请号：US661281
申请日：1996-06-10
申请人： Ian A. Waitz , John M. Brookfield , Julian Sell , Belva J. Hayden , K. Uno Ingard
发明人： Ian A. Waitz , John M. Brookfield , Julian Sell , Belva J. Hayden , K. Uno Ingard
IPC分类号： B64C21/02 , F02C7/045 , F02K3/06 , F04D29/66 , F04D29/68 , F01D5/26
CPC分类号： F02K1/28 , B64C21/025 , F01D5/145 , F02C7/045 , F02K3/06 , F04D29/667 , F04D29/681 , B64C2230/04 , B64C2230/06 , B64C2230/14 , B64C2230/28 , B64D2033/0226 , F05D2240/304 , Y02T50/166 , Y02T50/66 , Y02T50/673 , Y10S415/914
摘要： In the invention, propagating broad band and tonal acoustic components of noise characteristic of interaction of a turbomachine blade wake, produced by a turbomachine blade as the blade rotates, with a turbomachine component downstream of the rotating blade, are reduced. This is accomplished by injection of fluid into the blade wake through a port in the rotor blade. The mass flow rate of the fluid injected into the blade wake is selected to reduce the momentum deficit of the wake to correspondingly increase the time-mean velocity of the wake and decrease the turbulent velocity fluctuations of the wake. With this fluid injection, reduction of both propagating broad band and tonal acoustic components of noise produced by interaction of the blade wake with a turbomachine component downstream of the rotating blade is achieved. In a further noise reduction technique, boundary layer fluid is suctioned into the turbomachine blade through a suction port on the side of the blade that is characterized as the relatively low-pressure blade side. As with the fluid injection technique, the mass flow rate of the fluid suctioned into the blade is here selected to reduce the momentum deficit of the wake to correspondingly increase the time-mean velocity of the wake and decrease the turbulent velocity fluctuations of the wake; reduction of both propagating broad band and tonal acoustic components of noise produced by interaction of the blade wake with a turbomachine component downstream of the rotating blade is achieved with this suction technique. Blowing and suction techniques are also provided in the invention for reducing noise associated with the wake produced by fluid flow around a stationary blade upstream of a rotating turbomachine.
摘要翻译：在本发明中，传播由叶片旋转时的涡轮机叶片产生的涡轮机叶片尾流与旋转叶片下游的涡轮机组件相互作用的噪声特性的宽带和音调声学分量被减小。这是通过转子叶片中的端口将流体注入叶片尾流来实现的。选择注入到叶片尾流中的流体的质量流率来减小尾流的动量差异，从而相应地增加尾流的时间平均速度并减小尾流的湍流速度波动。通过这种流体注射，实现了通过叶片尾流与旋转叶片下游的涡轮机组件的相互作用产生的噪声的传播宽带和音调声学分量的减小。在进一步的降噪技术中，边界层流体通过叶片侧面的抽吸口被吸入涡轮机叶片，其特征在于相对低压叶片侧。与流体注入技术一样，这里选择吸入叶片的流体的质量流量来减少尾流的动量不足，从而相应地增加尾流的时间平均速度并减小尾流的湍流速度波动; 通过这种抽吸技术实现了通过叶片尾流与旋转叶片下游的涡轮机组件的相互作用产生的噪声的传播宽带和音调声分量的减小。本发明还提供了吹气和抽吸技术，用于减少与在旋转涡轮机上游的固定叶片周围的流体流动产生的尾迹相关联的噪音。

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