公开(公告)号：US11454242B2

公开(公告)日：2022-09-27

申请号：US16968873

申请日：2018-10-15

申请人： FUNABORI Co., Ltd.

发明人： Masanori Udagawa

IPC分类号： A45B23/00 ,  F04D19/00 ,  A47B37/04 ,  A45B25/00

摘要： An air blowing device includes: an air blower provided in connection with a support stand, the air blower being configured to generate rising air; a support frame attached to the support stand; and a wind-direction changing device configured to change a wind direction to a direction crossing a direction of the rising air upon receipt of the rising air, wherein descending air blown to periphery around the air blower is generated by the wind-direction changing device, and the wind-direction changing device is supported by the support frame.

公开(公告)号：US20220299045A1

公开(公告)日：2022-09-22

申请号：US17616106

申请日：2020-05-14

申请人： Robert Bosch GmbH

发明人： William M. Stevens ,  Alexander Czulak

IPC分类号： F04D29/66 ,  F04D25/06 ,  F04D29/32 ,  F04D19/00

摘要： An axial fan assembly includes blades rotatable about a central axis, a hub connecting the blades at radially-inner ends thereof, and a motor connected to a first portion of the hub. A second portion of the hub supporting the plurality of blades is isolated from the first portion of the hub by a plurality of slots. A plurality of ribs interconnect the first and second hub portions, the ribs defining unsupported regions along bordering ones of the slots. Inner and outer attachment portions of the ribs extend radially inward and radially outward, respectively, from the unsupported regions to attach with the first and second hub portions. As viewed along the central axis, a first thickness defined at each of the unsupported rib portions is less than a second thickness defined at one of the inner and outer attachment portions.

公开(公告)号：US11441570B2

公开(公告)日：2022-09-13

申请号：US16816850

申请日：2020-03-12

申请人： LG Electronics Inc.

发明人： Eunji Hwang ,  Byungjik Kim ,  Sunggi Kim ,  Jisu Hwang

IPC分类号： F04D29/02 ,  F04D25/08 ,  F04D29/62 ,  F04D29/44 ,  F04D17/08 ,  F04D19/00

摘要： An embodiment of the present disclosure discloses a motor assembly including a rotation shaft, an impeller including a hub fastened to the rotation shaft, and a plurality of blades protruding outward from an outer surface of the hub, an inlet body for surrounding an outer circumference of the impeller, and a coating layer coated on an inner surface of the inlet body, wherein at least a portion of the coating layer is ground in a form of powder by friction with the plurality of blades during rotation of the impeller.

公开(公告)号：US20220282602A1

公开(公告)日：2022-09-08

申请号：US17664770

申请日：2022-05-24

申请人： FMC Technologies, Inc.

发明人： Christopher E. Cunningham ,  Eduardo Cardoso ,  Timothy Bartlett ,  Paulo Guedes-Pinto ,  Co Si Huynh ,  Robert Perry ,  John Davis Sink

IPC分类号： E21B43/12 ,  F04D27/00 ,  F04D25/06 ,  F04B17/03 ,  F04B47/06 ,  E21B43/01 ,  F04D29/10 ,  F04D13/10 ,  F04D17/10 ,  F04D19/00 ,  F04D29/52 ,  F04D31/00

摘要： A submersible well fluid system for operating submerged in a body of water may include an electric machine and a fluid end. The electric machine includes a rotor and a stator residing in a first housing at specified conditions. The fluid end may include an impeller and be coupled to the electric machine. The submersible well fluid system may also include an adjustable speed drive for the electric machine in the housing. The submersible well fluid system may also include a chemical distribution system for supplying treatment chemicals to the submersible well fluid system, a barrier fluid supply system for supplying a barrier fluid to the submersible well fluid system, and a pressure management system.

公开(公告)号：US11434916B2

公开(公告)日：2022-09-06

申请号：US17153236

申请日：2021-01-20

申请人： John G. Labuda

发明人： John G. Labuda

IPC分类号： F04D25/08 ,  F24F7/007 ,  F24F11/77 ,  F04D19/00

摘要： A room ventilation system ventilates a structurally enclosable first room as exemplified by a restroom. A second room adjoins the first room with a shared wall therebetween. A fan assembly is mounted within the shared wall such that the airflow from the fan assembly is directed toward the first room. A vent cover in downstream adjacency to the fan assembly has first louvres for re-directing airflow from the fan assembly in a first oblique, downward direction. A vent cover in upstream adjacency to the fan assembly has second louvres for re-directing airflow from the second room in a second oblique, downward direction. Circuitry, in electrical communication with a power source and the fan motor assembly, includes a switch for enabling the user to selectively power the fan motor thereby directing airflow from the second room into the first room for replacing air within the first room.

公开(公告)号：US20220235780A1

公开(公告)日：2022-07-28

申请号：US17594385

申请日：2020-04-22

申请人： Randall H. Reid

发明人： Randall H. Reid

IPC分类号： F04D25/06 ,  F04D19/00 ,  H01L35/30 ,  H01L35/32

摘要： A self-powered thermal fan for circulating air for use in cooperation with a heat source, such as a wood stove, and which relies on a thermoelectric generator to provide electrical current to power a motor. The motor is used to move fan blades which create a warm air flow away for the heat source, and a cooler air flow towards the fan assembly. In the present invention, the fan assembly includes at least two thermoelectric generator modules that are separate by a gap which allows for increase module surface area, without creating a risk of module damage caused by heat expansion. The improved design also preferably includes the use of angled module mounting lands, which aid in increasing heat gradient across the module. Additionally, the present device provides the ability to have larger heat exchange surfaces that can provide increased cooling to the opposite surfaces of the thermoelectric generator module. Improved output and efficiencies of the self-powered thermal fan assembly are achieved.

公开(公告)号：US20220217908A1

公开(公告)日：2022-07-14

申请号：US17147526

申请日：2021-01-13

申请人： DEERE & COMPANY

发明人： Blain J. Cazenave

IPC分类号： A01D45/10 ,  F04D27/00 ,  F04D19/00

摘要： A sugarcane harvester for harvesting sugarcane including a cutter configured to cut sugarcane into a sugarcane mat. An extractor is operatively connected to the cutter, and includes a fan housing having an inlet configured to receive the sugarcane mat and an outlet configured to discharge crop debris. A fan is located in the fan housing to move the sugarcane mat through the fan housing and includes a motor, blades rotatably coupled to the motor, and a blade angle of incidence mechanism operatively connected to the blades, wherein the blade angle of incidence mechanism adjusts the angle of incidence of the blades with respect to the motor. Sensors identify an air flow through the fan housing or a load placed on the motor during movement of the sugarcane mat through the fan housing. The angle of incidence of the blades is adjusted based on one or both of the air flow through the fan housing or the load placed on the motor.

公开(公告)号：US11388838B2

公开(公告)日：2022-07-12

申请号：US16892300

申请日：2020-06-04

申请人： Wistron Corporation

发明人： Qi-Hong Yang

IPC分类号： H05K7/20 ,  F04D25/14 ,  F04D29/52 ,  F04D29/64 ,  F04D19/00

摘要： A fan module including a blade mechanism, a switch component, and a fan is provided. The blade mechanism includes a frame having a through hole, a positioning bracket movably connected to the frame, and blades movably connected to the positioning bracket and the frame. The switch component is connected to the positioning bracket and located on an assembly path. The fan is detachably disposed at one side of the through hole, and the positioning bracket and the blades are located at another side. In a first mode, any two adjacent blades are stacked to close the through hole. In a second mode, the fan pushes the switch component to drive the positioning bracket to drive the blades, such that the blades have a rotational degree of freedom relative to the positioning bracket or rotate relative to the frame to open the through hole. An electronic device is also provided.

公开(公告)号：US20220214245A1

公开(公告)日：2022-07-07

申请号：US17606690

申请日：2020-07-02

申请人： ZHEJIANG UNIVERSITY

发明人： Yao Zheng ,  Zhixian Ye ,  Jianfeng Zou ,  Yang Zhang ,  Yiyang Jiang ,  Zenan Tian ,  Shaochang Mo

IPC分类号： G01M9/04 ,  F04D19/00 ,  F04D27/00

摘要： A tracer particle spreading device for a boundary layer flow visualization experiment based on a flat plate includes a tracer particle generator, a smoke storage box, and a wall-surface particle distribution box. Fume and oil are pressurized by a micro pump and flows into a heating pipe to be heated and vaporized, and then is ejected from a nozzle to form tracer particles. The tracer particles enter the smoke storage box via a smoke guiding tube. An axial flow fan is mounted on a wall surface of the smoke storage box. The tracer particles enter a cavity of the wall-surface particle distribution box via the smoke guiding tube, and the tracer particles are rectified by a rectifying plate and ejected from a spreading slit. An outlet of the spreading slit is at an angle of 15° with respect to an experiment flat plate.

公开(公告)号：US11371517B2

公开(公告)日：2022-06-28

申请号：US16709183

申请日：2019-12-10

申请人： Regal Beloit America, Inc.

发明人： Jeevan Gnana Robinson ,  Neha Kumari ,  Yunpeng Yang

IPC分类号： F04D29/32 ,  F04D25/08 ,  F04D19/00 ,  F04D25/06 ,  F04D29/38

摘要： An electric motor assembly includes an electric motor, a fan assembly coupled to the electric motor and configured to rotate therewith about an axis. The fan assembly includes a hub including a cylindrical portion having an inlet end and an outlet end, the hub further including an inlet surface coupled to the inlet end. The fan assembly also includes a plurality of blades coupled to an outer periphery of the cylindrical portion, wherein the inlet surface is tapered to direct an inlet airflow toward the plurality of blades.