公开(公告)号：US11965514B2

公开(公告)日：2024-04-23

申请号：US17622941

申请日：2020-07-20

申请人： Carrier Corporation

发明人： Michael M. Joly ,  Chaitanya Vishwajit Halbe ,  Vishnu M. Sishtla ,  William T. Cousins

IPC分类号： F04D17/02 ,  F04D19/02 ,  F04D25/02 ,  F04D29/28 ,  F04D29/32

CPC分类号： F04D17/025 ,  F04D19/024 ,  F04D25/02 ,  F04D29/321 ,  F04D29/284 ,  F05D2210/14 ,  F05D2250/51

摘要： A refrigerant compressor assembly (20A, 20B, 20C) includes an axial compressor (22B, 22C, 22) that includes at least one axial stage. A downstream compressor (24) is located fluidly downstream of the axial compressor (22B, 22C, 22) and includes one of a mixed-flow impeller (46) or a centrifugal impeller (96). At least one motor (26, 27) is in driving engagement with at least one of the axial compressor (22B, 22C, 22) and the downstream compressor (24).

公开(公告)号：US20240035480A1

公开(公告)日：2024-02-01

申请号：US18272927

申请日：2022-02-03

申请人： SIEMENS ENERGY GLOBAL GMBH & CO. KG

发明人： William C. Maier

IPC分类号： F04D19/02 ,  F04D25/16

CPC分类号： F04D19/024 ,  F04D25/16

摘要： A multi-stage compressor assembly is disclosed. Each of the stages of the compressor assembly has rows of blades arranged to rotate in counter-opposite directions, and this is effective to produce relatively high specific work, and high flow-capacity in a compact footprint at moderate blade tip speeds. In one non-limiting application, the compressor assembly can be utilized to compress a gas having a low-molecular weight and density, such as hydrogen.

公开(公告)号：US11680486B2

公开(公告)日：2023-06-20

申请号：US16779712

申请日：2020-02-03

申请人： ROLLS-ROYCE plc

发明人： Chloe J. Palmer ,  Vladimir A. Shirokov

IPC分类号： F01D15/10 ,  F01D1/26 ,  F01D15/12 ,  F04D19/02 ,  F02K3/072 ,  H02K7/18

CPC分类号： F01D1/26 ,  F01D15/10 ,  F01D15/12 ,  F02K3/072 ,  F04D19/024 ,  H02K7/1823 ,  F05D2250/44 ,  F05D2260/40311

摘要： Turbomachinery comprising first and second sets of rotors configured to operate on a working fluid. The machinery further comprises first and second sets of electric machines coupled to the respective first and second rotors, and a coupling arrangement arranged to couple adjacent rotors of the first and second rotor sets to provide for fixed ratio, contra-rotation of the first and second rotor sets.

公开(公告)号：US11661943B2

公开(公告)日：2023-05-30

申请号：US17283528

申请日：2018-12-21

申请人： GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD. ,  MIDEA GROUP CO., LTD.

发明人： Xiaowen Hu ,  Site Hu ,  Hui Zhang ,  Rong Yi

IPC分类号： F04D19/02 ,  F04D25/06 ,  F04D25/08 ,  F04D25/16 ,  F04D29/32 ,  F04D29/58

CPC分类号： F04D19/024 ,  F04D25/06 ,  F04D25/08 ,  F04D25/166 ,  F04D29/325 ,  F04D29/582

摘要： A counter-rotating fan, comprising two impellers and a motor. The motor is used for driving the two impellers to rotate. The two impellers are axially spaced apart from each other, and are divided into a first-stage impeller and a second-stage impeller. When the counter-rotating fan operates, airflow is blown to the direction of the second-stage impeller by means of the first-stage impeller. At least one impeller has turns of blades arranged in the radial direction of the impeller. Blades of each turn are spaced apart from each other around a hub of the impeller, and a spacer ring is connected between two adjacent turns of blades. The counter-rotating fan is stable in rotation and good in cooling effect, it is not easy to deform, and the wind is strong in the center.

公开(公告)号：US20180080451A1

公开(公告)日：2018-03-22

申请号：US15506542

申请日：2015-11-19

申请人： TAIYUAN UNIVERSITY OF TECHNOLOGY

发明人： ZIMING KOU ,  JUAN WU ,  GUIJUN GAO ,  SHANRONG DA ,  JING ZHANG ,  YANFEI KOU ,  TING LI ,  SHENG LI ,  JIN WEI

IPC分类号： F04D19/02 ,  F04D25/08 ,  F16H1/22 ,  F16H25/18

CPC分类号： F04D19/024 ,  E21F1/00 ,  F04D19/007 ,  F04D25/02 ,  F04D25/08 ,  F04D29/053 ,  F04D29/545 ,  F16H1/222 ,  F16H25/186

摘要： There is provided a ventilation apparatus with counter-rotating impellers driven by long shaft, wherein an electric motor and a gearbox are placed outside the air duct by using a long shaft with an internally disposed slim shaft extending therefrom, and are connected with the first stage impeller and second stage impeller inside the air duct by using the long shaft and slim shaft extending therefrom. In this ventilation apparatus with counter-rotating impellers, the components of the ventilation apparatus are placed inside and outside the air duct respectively by using the transmission shaft, which is convenient for maintenance and operation. By remotely arranging the impellers at an axial distance, the hub of the impellers will no longer be affected by an internally disposed electric motor, so as to reduce the ventilation resistance to ventilation. The impellers can be switched between the single impeller rotation and the counter rotation of two impellers.

公开(公告)号：US20170159665A1

公开(公告)日：2017-06-08

申请号：US15115722

申请日：2015-02-02

申请人： Nuovo Pignone Srl

发明人： Lorenzo BERGAMINI ,  Marco CIPRIANI

IPC分类号： F04D27/00 ,  F04D17/12 ,  F04D13/06 ,  F04D25/06 ,  F04D19/02 ,  F04D3/00 ,  F04D15/00 ,  F04D29/18 ,  F04D29/22 ,  F04D29/58 ,  F04D29/06 ,  F04D29/70 ,  F04D29/42 ,  F04D29/52 ,  F04D1/06

CPC分类号： F04D27/004 ,  F04D1/06 ,  F04D3/00 ,  F04D13/06 ,  F04D15/0066 ,  F04D17/12 ,  F04D17/122 ,  F04D19/02 ,  F04D19/024 ,  F04D19/026 ,  F04D25/0606 ,  F04D29/056 ,  F04D29/06 ,  F04D29/181 ,  F04D29/22 ,  F04D29/42 ,  F04D29/52 ,  F04D29/58 ,  F04D29/70

摘要： A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions.

公开(公告)号：US20170022994A1

公开(公告)日：2017-01-26

申请号：US14807531

申请日：2015-07-23

申请人： ONESUBSEA IP UK LIMITED

发明人： BERNT-HELGE TORKILDSEN

IPC分类号： F04D25/06 ,  F04D19/00 ,  F01D5/14

CPC分类号： F04D25/0686 ,  F01D5/142 ,  F04D19/007 ,  F04D19/024 ,  F04D29/321 ,  F04D29/324

摘要： A compressor includes impellers each having its chord angle less than its stall angle. The impellers can be used in a contra-rotating impeller arrangement without static diffusers. The contra-rotating impeller arrangement provides for much larger nominal flow rates than conventional single rotating impeller arrangements with the same chord angles. Accordingly, a surge free design is provided without excessively compromising the nominal flow rate. Techniques for enhancing stall characteristics of the impellers are also described.

摘要翻译： 压缩机包括各自具有小于其失速角的弦角的叶轮。 叶轮可用于不带静态扩散器的反转叶轮装置。 反向旋转的叶轮装置提供比具有相同和弦角的常规单个旋转叶轮装置大得多的标称流速。 因此，提供无浪涌设计，而不会过度损害额定流量。 还描述了用于增强叶轮的失速特性的技术。

公开(公告)号：US09353754B2

公开(公告)日：2016-05-31

申请号：US13800836

申请日：2013-03-13

申请人： Embry-Riddle Aeronautical University, Inc.

发明人： Vinod Gehlot ,  Magdy S. Attia

IPC分类号： F04D19/02 ,  F02C3/067 ,  F01D1/24 ,  F04D29/059

CPC分类号： F04D19/02 ,  F01D1/24 ,  F02C3/067 ,  F04D19/024 ,  F04D29/059 ,  F05D2250/44

摘要： A multi-stage axial compressor for counter rotation. A first series of rotor blade assemblies are mounted on and rotate with the driveshaft, each rotor blade assembly of the first series comprising a rotating stage of the multi-stage axial compressor. A second series of rotor blade assemblies provide a counter-rotating stage of the multi-stage axial compressor. An accessory drive links the second series of rotor blade assemblies to the driveshaft and causes counter-rotation of the second series of rotor blade assemblies.

摘要翻译： 一种用于反向旋转的多级轴流式压缩机。 第一系列转子叶片组件安装在驱动轴上并与驱动轴一起旋转，第一系列的每个转子叶片组件包括多级轴向压缩机的旋转级。 第二系列转子叶片组件提供多级轴流式压缩机的反向旋转级。 附件驱动器将第二系列转子叶片组件连接到驱动轴并引起第二系列转子叶片组件的反向旋转。

公开(公告)号：US20160102607A1

公开(公告)日：2016-04-14

申请号：US14865202

申请日：2015-09-25

申请人： Techspace Aero S.A.

发明人： Stéphane Hiernaux

IPC分类号： F02C3/10 ,  F02C7/36

CPC分类号： F02C7/36 ,  F02C3/067 ,  F02C3/107 ,  F02K3/06 ,  F04D19/024 ,  F05D2220/32 ,  F05D2260/40 ,  F05D2260/40311 ,  Y02T50/671

摘要： The present application relates to an axial turbine engine with a turbine, a low-pressure compressor, and a fan. The turbine drives the compressor and the fan via a plurality of epicyclic reducing gears. The rotor of the compressor includes upstream a disc with a row of vanes and downstream a drum with a plurality of rows of vanes. The disc and the drum are connected to different parts of the epicyclic reducing gears, so as to be counter-rotating. The turbine engine includes a row of stator vanes arranged between two rows of rotor blades of the drum of the compressor, so as to straighten the flow and improve the efficiency. The turbine engine includes at least two epicyclic reducing gears, so that the vane rows of the drum turn faster than that downstream, which itself turns faster than the fan.

摘要翻译： 本申请涉及具有涡轮机，低压压缩机和风扇的轴向涡轮发动机。 涡轮通过多个行星减速齿轮驱动压缩机和风扇。 压缩机的转子包括具有一排叶片的盘的上游，并且具有多排叶片的滚筒下游。 盘和鼓连接到行星减速齿轮的不同部分，以便反向旋转。 涡轮发动机包括布置在压缩机的滚筒的两排转子叶片之间的一排定子叶片，以便使流动变直并提高效率。 涡轮发动机包括至少两个行星齿轮减速齿轮，使得滚筒的叶片行转动比下游的转动更快，其本身比风扇转动得更快。

公开(公告)号：US09267505B2

公开(公告)日：2016-02-23

申请号：US13440213

申请日：2012-04-05

申请人： Atsushi Yanagisawa ,  Honami Oosawa

发明人： Atsushi Yanagisawa ,  Honami Oosawa

IPC分类号： F04D19/00 ,  F04D19/02 ,  F04D29/38

CPC分类号： F04D19/007 ,  F04D19/024 ,  F04D29/386

摘要： Provided here is a counter-rotating axial flow fan with improved air flow-static pressure characteristics and reduced power consumption and noise compared to the related art. A plurality of struts are disposed to be stationary between a front impeller and a rear impeller in an air channel. A plurality of front blades are each formed of a swept-back blade, and a plurality of rear blades are each formed of a forward-swept blade.

摘要翻译： 这里提供了一种反向旋转轴流风扇，与现有技术相比，具有改善的空气流静压特性和降低的功耗和噪声。 多个支柱设置成在空气通道中在前叶轮和后叶轮之间固定。 多个前叶片各自由后掠叶片形成，并且多个后叶片各自由前掠刀片形成。