公开(公告)号：US08951013B2

公开(公告)日：2015-02-10

申请号：US13279473

申请日：2011-10-24

申请人： Jeff H. Miller ,  Steven P. Grota

发明人： Jeff H. Miller ,  Steven P. Grota

IPC分类号： F01D5/16 ,  F01D5/22 ,  F01D25/06

CPC分类号： F01D5/225 ,  F01D5/10 ,  F01D5/16 ,  F01D25/06 ,  F05D2260/96 ,  Y10S416/50

摘要： A device for damping of vibratory energy in the blades of rotor assemblies during operation where the blades have a shroud attached thereto with at least one sealing rail extending radially outward from the shroud to an outer diameter surface. A damper element is attached to the turbine blade sealing rail extending radially inward from the rail outer diameter surface along rail sides to maintain the damper element out of the flow of gas and positioned at a radial location on the blade for damping.

摘要翻译： 一种用于在操作期间阻尼转子组件叶片中的振动能的装置，其中叶片具有附接到其上的护罩，其中至少一个密封轨道从护罩径向向外延伸到外径表面。 阻尼元件连接到从轨道外径表面沿轨道侧径向向内延伸的涡轮机叶片密封轨道，以将阻尼器元件保持在气体流动之外并且位于叶片上的径向位置以用于阻尼。

公开(公告)号：US20130101395A1

公开(公告)日：2013-04-25

申请号：US13279473

申请日：2011-10-24

申请人： Jeff H. Miller ,  Steven P. Grota

发明人： Jeff H. Miller ,  Steven P. Grota

IPC分类号： F01D25/04

CPC分类号： F01D5/225 ,  F01D5/10 ,  F01D5/16 ,  F01D25/06 ,  F05D2260/96 ,  Y10S416/50

摘要： A device for damping of vibratory energy in the blades of rotor assemblies during operation where the blades have a shroud attached thereto with at least one sealing rail extending radially outward from the shroud to an outer diameter surface. A damper element is attached to the turbine blade sealing rail extending radially inward from the rail outer diameter surface along rail sides to maintain the damper element out of the flow of gas and positioned at a radial location on the blade for damping.

公开(公告)号：US07066714B2

公开(公告)日：2006-06-27

申请号：US10811359

申请日：2004-03-26

申请人： Jeff H. Miller ,  Xinhong J. Zheng ,  Steven P. Grota ,  Khin C. Phui

发明人： Jeff H. Miller ,  Xinhong J. Zheng ,  Steven P. Grota ,  Khin C. Phui

IPC分类号： F04D29/08

CPC分类号： F01D5/225 ,  F05D2300/702 ,  Y02T50/671

摘要： An improved rotor assembly shroud includes at least one reinforcing flange on the upper surface of the shroud. The strength provided by the reinforcing flange allows for a smaller shroud thickness resulting in a net reduction of shroud mass. The lower shroud mass reduces the centrifugal stress on the rotor assembly blade during operation. The strength provided by the reinforcing flanges also significantly reduces the centrifugal bending stress on the shroud during operation. The shroud mass may be further reduced by tapering the shroud leading and trailing edges or, for shrouds incorporating a damper, by providing a damper cavity with a lower diameter surface defining an opening therethrough.

摘要翻译： 改进的转子组件护罩在护罩的上表面上包括至少一个加强凸缘。 由加强凸缘提供的强度允许较小的护罩厚度，导致护罩质量的净减少。 下部护罩质量在操作期间减小了转子组件刀片上的离心应力。 由加强法兰提供的强度也显着降低了操作期间护罩上的离心弯曲应力。 护罩质量可以通过使护罩前缘和后缘逐渐缩小，或者对于包含阻尼器的护罩，通过提供具有限定穿过其中的开口的下直径表面的阻尼腔而进一步减小。

公开(公告)号：US20130170993A1

公开(公告)日：2013-07-04

申请号：US13343026

申请日：2012-01-04

申请人： Jeff H. Miller ,  Kelvin Sorensen ,  John Fung ,  Thaddeus Pearce Chilcoat ,  Fabian Bitar

发明人： Jeff H. Miller ,  Kelvin Sorensen ,  John Fung ,  Thaddeus Pearce Chilcoat ,  Fabian Bitar

IPC分类号： F01D5/22

CPC分类号： F01D5/048 ,  F01D5/34 ,  F05D2240/304

摘要： The disclosed fluid elements include radial blades extending to trailing edges and that are integral with front and rear shrouds to provide a fluid exit. Fillets adjoin the trailing edge and the front and rear shrouds at the exit. The front and rear shrouds respectively have first and second perimeter thicknesses at the impeller outer perimeter. The first perimeter thickness is greater than the second perimeter thickness at the trailing edge and adjacent to the exit, which provides greater high cycle fatigue in the area of the fillets.

摘要翻译： 所公开的流体元件包括延伸到后缘的径向刀片，并且与前罩和后护罩成一体以提供流体出口。 在后缘附近的圆角和出口处的前后护罩。 前后护罩在叶轮外周分别具有第一和第二周边厚度。 第一周边厚度大于后边缘处并与出口相邻的第二周边厚度，这在圆角区域中提供更大的高循环疲劳。

公开(公告)号：US07273352B2

公开(公告)日：2007-09-25

申请号：US10754267

申请日：2004-01-09

申请人： Morgan Williams ,  Wei-Chung Chen ,  Khanh C. Hoang ,  Jeff H. Miller

发明人： Morgan Williams ,  Wei-Chung Chen ,  Khanh C. Hoang ,  Jeff H. Miller

IPC分类号： F04D13/12

CPC分类号： F02K9/46 ,  F04D29/2294

摘要： Methods and apparatus for conveying fluids (e.g., liquids, gases, and mixtures thereof) are disclosed. A turbopump in accordance with an exemplary implementation of the present invention comprises an impeller defining at least one flow channel and a shroud defining an opening communicating with the at least one flow channel. In certain advantageous implementations, at least one inlet partial of the impeller extends into the opening defined by the shroud. The at least one inlet partial may advantageously be capable of supporting the opening in the shroud. In some cases, the impeller may include a plurality of these inlet partials.

摘要翻译： 公开了用于输送流体（例如液体，气体及其混合物）的方法和装置。 根据本发明的示例性实施方式的涡轮泵包括限定至少一个流动通道和限定与所述至少一个流动通道连通的开口的护罩的叶轮。 在某些有利的实施方案中，叶轮的至少一个入口部分延伸到由护罩限定的开口中。 至少一个入口部分可以有利地能够支撑护罩中的开口。 在一些情况下，叶轮可以包括多个这些入口部分。

公开(公告)号：US09022742B2

公开(公告)日：2015-05-05

申请号：US13343026

申请日：2012-01-04

申请人： Jeff H. Miller ,  Kelvin Sorensen ,  John Fung ,  Thaddeus Pearce Chilcoat ,  Fabian Bitar

发明人： Jeff H. Miller ,  Kelvin Sorensen ,  John Fung ,  Thaddeus Pearce Chilcoat ,  Fabian Bitar

IPC分类号： F01D5/14 ,  F01D5/04 ,  F01D5/34

CPC分类号： F01D5/048 ,  F01D5/34 ,  F05D2240/304

摘要： The disclosed fluid elements include radial blades extending to trailing edges and that are integral with front and rear shrouds to provide a fluid exit. Fillets adjoin the trailing edge and the front and rear shrouds at the exit. The front and rear shrouds respectively have first and second perimeter thicknesses at the impeller outer perimeter. The first perimeter thickness is greater than the second perimeter thickness at the trailing edge and adjacent to the exit, which provides greater high cycle fatigue in the area of the fillets.

摘要翻译： 所公开的流体元件包括延伸到后缘的径向刀片，并且与前罩和后护罩成一体以提供流体出口。 在后缘附近的圆角和出口处的前后护罩。 前后护罩在叶轮外周分别具有第一和第二周边厚度。 第一周边厚度大于后边缘处并与出口相邻的第二周边厚度，这在圆角区域中提供更大的高循环疲劳。