公开(公告)号：EP1404975A1

公开(公告)日：2004-04-07

申请号：EP02756215.6

申请日：2002-06-17

Applicant: Concepts ETI, Inc.

Inventor： JAPIKSE, David

IPC: F04D29/66

CPC classification number: F04D29/4213 ,  F04D27/009 ,  F04D27/0207 ,  F04D29/445 ,  F04D29/685 ,  F04D29/688 ,  F05D2250/51 ,  Y10S415/914

Abstract: The present invention is a device (100) for at least partially stabilizing an unstable fluid flow within a flow channel (103) by capturing at least a portion of the unstable fluid within a vaneless diffuser having a diffuser slot ( 104 ). The present invention also includes maintaining and harnessing a substantial portion of the energy contained in the fluid as it flows through the diffuser in order to utilize the fluid to improve the condition of the flow field. An example of a beneficial use includes discharging the diffuser effluent into the flow at other points critical to instability, hence reducing the overall instability of the flow channel.

公开(公告)号：EP2948632A1

公开(公告)日：2015-12-02

申请号：EP14743527.5

申请日：2014-01-23

Applicant: Concepts ETI, Inc.

Inventor： JAPIKSE, David

IPC: F01D5/12 ,  F01D9/00 ,  F02C7/00

CPC classification number: F04D29/444 ,  B23P15/006 ,  F01D5/142 ,  F01D5/145 ,  F01D5/225 ,  F01D9/041 ,  F01D9/045 ,  F01D25/06 ,  F04D1/00 ,  F04D17/10 ,  F04D29/162 ,  F04D29/167 ,  F04D29/245 ,  F04D29/281 ,  F04D29/284 ,  F04D29/324 ,  F04D29/325 ,  F04D29/384 ,  F04D29/448 ,  F04D29/542 ,  F04D29/544 ,  F04D29/666 ,  F04D29/685 ,  F05D2240/121 ,  F05D2240/126 ,  F05D2240/303 ,  F05D2250/52 ,  Y10T29/49229

Abstract: Turbomachines having close-coupling flow guides (CCFGs) that are designed and configured to closely-couple flow fields of adjacent bladed elements. In some embodiments, the CCFGs may be located in regions extending between the adjacent bladed elements, described herein as coupling avoidance zones, where conventional turbomachine design would suggest no structure should be added. In yet other embodiments, CCFGs are located upstream and/or downstream of rows of blades coupled to the bladed elements, including overlapping one of more of the rows of blades, to improve flow coupling and machine performance. Methods of designing turbomachines to incorporate CCFGs are also provided.

公开(公告)号：EP1404975B1

公开(公告)日：2009-08-26

申请号：EP02756215.6

申请日：2002-06-17

Applicant: Concepts ETI, Inc.

Inventor： JAPIKSE, David

IPC: F04D27/02 ,  F04D29/42

CPC classification number: F04D29/4213 ,  F04D27/009 ,  F04D27/0207 ,  F04D29/445 ,  F04D29/685 ,  F04D29/688 ,  F05D2250/51 ,  Y10S415/914

Abstract: The present invention is a device (100) for at least partially stabilizing an unstable fluid flow within a flow channel (103) by capturing at least a portion of the unstable fluid within a vaneless diffuser having a diffuser slot ( 104 ). The present invention also includes maintaining and harnessing a substantial portion of the energy contained in the fluid as it flows through the diffuser in order to utilize the fluid to improve the condition of the flow field. An example of a beneficial use includes discharging the diffuser effluent into the flow at other points critical to instability, hence reducing the overall instability of the flow channel.

公开(公告)号：EP2917505A2

公开(公告)日：2015-09-16

申请号：EP13773449.7

申请日：2013-09-11

Applicant: Concepts ETI, Inc.

Inventor： FAIRMAN, Kevin ,  DI BELLA, Francis, A. ,  JAPIKSE, David ,  BECKER, Frederick, E. ,  GOFER, Alexander

IPC: F01D15/10 ,  F01D25/16 ,  F01D25/24 ,  F01K13/02

CPC classification number: H02K7/1823 ,  B23P15/00 ,  F01D5/06 ,  F01D15/10 ,  F01D25/16 ,  F01D25/24 ,  F01K25/08 ,  F01K27/02 ,  F02C7/06 ,  F05D2220/30 ,  F05D2220/31 ,  F05D2220/76 ,  F05D2240/51 ,  F05D2240/52 ,  F05D2240/54 ,  F05D2240/56 ,  F16C32/0402 ,  F16C32/0474 ,  F16C32/0485 ,  F16C32/0493 ,  F16C32/06 ,  F16C2380/26 ,  H02K7/09 ,  H02K9/12 ,  Y02E10/34 ,  Y10T29/49321 ,  Y10T29/53

Abstract: A turbine-generator device for use in electricity generation using heat from industrial processes, renewable energy sources and other sources. The generator may be cooled by introducing into the gap between the rotor and stator liquid that is vaporized or atomized prior to introduction, which liquid is condensed from gases exhausted from the turbine. The turbine has a universal design and so may be relatively easily modified for use in connection with generators having a rated power output in the range of 50 KW to 5 MW. Such modifications are achieved, in part, through use of a modular turbine cartridge built up of discrete rotor and stator plates sized for the desired application with turbine brush seals chosen to accommodate radial rotor movements from the supported generator. The cartridge may be installed and removed from the turbine relatively easily for maintenance or rebuilding. The rotor housing is designed to be relatively easily machined to dimensions that meet desired operating parameters.

Abstract translation: 用于使用来自工业过程，可再生能源和其他来源的热量的发电的涡轮发电机装置。 发生器可以通过引入在引入之前被蒸发或雾化的转子和定子液体之间的间隙中而被冷却，该液体从涡轮机排出的气体冷凝。 涡轮机具有通用设计，因此可以相对容易地修改，以用于具有在50KW至5MW范围内的额定功率输出的发电机。 这样的修改部分地通过使用由离散的转子和定子板构成的模块化的涡轮机盒来实现，所述离散转子和定子板的尺寸用于期望的应用，其中涡轮刷的密封件被选择以适应来自所支撑的发电机的径向转子 可以相对容易地将容器安装和拆除，以进行维护或重建。 转子壳体被设计成相对容易地加工成满足期望的操作参数的尺寸。

公开(公告)号：EP1721062A2

公开(公告)日：2006-11-15

申请号：EP05705470.2

申请日：2005-01-11

Applicant: Concepts ETI, Inc.

Inventor： JAPIKSE, David ,  BAUN, Daniel, O.

IPC: F01D1/00

CPC classification number: F04D29/688 ,  F01D5/143 ,  F03B11/04 ,  F04D27/0207 ,  F04D27/0215 ,  F04D29/4213 ,  F04D29/685 ,  Y02E10/226 ,  Y10S415/914

Abstract: The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (22) of a compressor or pump impeller (23) and inducer/impeller (24). System (20) includes a plurality of devices for controlling various flow conditions. In one embodiment, system (20) includes a diffuser device (27) for stabilizing cavitating flows, a bypass device (28) for re-injecting flow upstream, and a flow control device (30) for selectively directing secondary fluid flow to either the diffuser device or the bypass device. In addition, at very high flow rates, bypass device (28) may also serve as a high-flow, forward-bypass device. Devices (27) and (28) form a pathway for secondary fluid flows, including cavitating flows, around a first portion (31) of a housing (32).