公开(公告)号：US12129864B2

公开(公告)日：2024-10-29

申请号：US18538900

申请日：2023-12-13

Applicant: Delta Electronics, Inc.

Inventor： Wei-I Ling ,  Chao-Fu Yang ,  Chih-Chung Chen ,  Kuo-Tung Hsu

IPC: F04D29/26 ,  F04D17/08 ,  F04D19/00 ,  F04D29/02 ,  F04D29/054 ,  F04D29/32 ,  F04D29/52

CPC classification number: F04D29/263 ,  F04D17/08 ,  F04D19/002 ,  F04D29/023 ,  F04D29/054 ,  F04D29/325 ,  F04D29/522

Abstract: An impeller is provided, including a metal housing, a shaft, and a plastic member. The metal housing has a shaft mounting hole. The inner surface of the shaft mounting hole includes three or more contact points, and the contact points are closer to the shaft than other portions of the inner surface of the shaft mounting hole. The shaft passes through the shaft mounting hole and is affixed by the contact points. The metal housing divides the shaft into an upper section, a middle section, and a lower section. The plastic member passes through the shaft mounting hole and is in contact with the middle section.

公开(公告)号：US12110897B2

公开(公告)日：2024-10-08

申请号：US18198670

申请日：2023-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Jeong Ho Lee ,  Seong-Jae Kim ,  Seung Jo Baek ,  Young Gyu Jung ,  Hak Kyu Choi ,  Seong-Ho Cho

IPC: F04D25/08 ,  A47L5/22 ,  A47L9/22 ,  F04D29/26 ,  F04D29/40 ,  F04D29/44 ,  F04D29/58 ,  F04D29/62

CPC classification number: F04D25/082 ,  A47L5/22 ,  A47L9/22 ,  F04D29/403 ,  F04D29/444 ,  F04D29/5806 ,  F04D29/624 ,  F04D29/26

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

公开(公告)号：US12078186B2

公开(公告)日：2024-09-03

申请号：US18153685

申请日：2023-01-12

Applicant: Carrier Corporation

Inventor： Huiliang Zhang ,  Kai Deng

IPC: F04D29/26 ,  F04D29/28

CPC classification number: F04D29/266 ,  F04D29/284

Abstract: A locking structure of a compressor impeller, which includes: a rotary shaft; a lock nut arranged on an end of the rotary shaft by means of a threaded connection and provided with waist-shaped holes extending along a circumferential direction thereof; an impeller sleeved on the end of the rotary shaft and located on an inner side of the lock nut, the impeller is provided with threaded holes in communication with the waist-shaped holes of the lock nut; a nose piece located on an outer side of the lock nut and provided with through holes in communication with the waist-shaped holes of the lock nut; and bolts passing through the through holes and the waist-shaped holes in turn into the threaded holes, thereby fixing the nose piece, the lock nut and the impeller together.

公开(公告)号：US20240093696A1

公开(公告)日：2024-03-21

申请号：US18368476

申请日：2023-09-14

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Digambar Satappa Killedar ,  Arshad Abdul Quader Shaikh ,  Juan Kennedy ,  Ilya Igorevich Burdukov ,  Suraj Vitthal Kumbhar ,  Nikhil Vinayak Desai

IPC: F04D29/34 ,  F04D19/00 ,  F04D29/26 ,  F04D29/32 ,  F04D29/52 ,  F04D29/54

CPC classification number: F04D29/34 ,  F04D19/002 ,  F04D29/263 ,  F04D29/326 ,  F04D29/522 ,  F04D29/542

Abstract: A mixed flow inline fan assembly includes an outer housing, a motor assembly disposed within the outer housing, a fan wheel disposed within the outer housing, where a shaft of the motor assembly is coupled to the fan wheel, and the fan wheel includes a hub, a plurality of blades coupled to the hub via first mechanical fasteners, and a shroud coupled to the plurality of blades via second mechanical fasteners

公开(公告)号：US11852167B2

公开(公告)日：2023-12-26

申请号：US17623788

申请日：2019-08-05

Applicant: Mitsubishi Electric Corporation

Inventor： Takaya Shimokawa ,  Hiroki Aso ,  Naoki Tamura

IPC: F04D29/58 ,  F04D25/06 ,  F04D29/054 ,  F04D29/26 ,  F04D29/28 ,  F04D29/60

CPC classification number: F04D29/5806 ,  F04D25/06 ,  F04D29/054 ,  F04D29/263 ,  F04D29/281 ,  F04D29/5853 ,  F04D29/601

Abstract: A motor has a sufficient heat dissipation function even when a non-magnetic material having low thermal conductivity is used for a shaft of a motor using a consequent pole rotor. A motor includes: a stator; a consequent pole rotor including a rotor core and a magnet; a casing housing the stator and the rotor; a shaft including a non-magnetic material and fixed to the rotor; and heat dissipation blades that are a first heat dissipation promoting means that rotates with the shaft. This promotes heat dissipation through a heat dissipation path from an inside of the motor through the shaft, preventing problems due to overheat in the motor.

公开(公告)号：US20230407880A1

公开(公告)日：2023-12-21

申请号：US18046349

申请日：2022-10-13

Applicant: SAUL LIN

Inventor： SAUL LIN

IPC: F04D29/40 ,  F04D29/70 ,  F04D29/26

CPC classification number: F04D29/403 ,  F04D29/703 ,  F04D29/26

Abstract: A tower fan has a shell, and the shell has a bottom plate, an outlet structure disposed on the bottom plate, and a top plate disposed on the outlet structure. The outlet structure has a shell plate module, an inlet module, and a guiding column each made by aluminum extrusion. The inlet module is detachably mounted on the bottom plate, and the top plate is configured to engage with the inlet module. The outlet structure is modular and is made by aluminum extrusion, which not only improves efficiency and convenience of detaching the shell but also decreases difficulties and costs of manufacturing the shell. The shell of the tower fan can further have multiple outlet structures disposed in mirror symmetry and multiple fan modules each corresponding to a respective outlet structure. Tower fans with double or more air volume can be provided without making extra molds.

公开(公告)号：US20230323890A1

公开(公告)日：2023-10-12

申请号：US18006290

申请日：2021-07-30

Applicant: Edwards Japan Limited

Inventor： Tooru Miwata ,  Yongwei Shi

IPC: F04D19/04 ,  F04D29/26 ,  F04D29/40

CPC classification number: F04D29/26 ,  F04D19/04 ,  F04D29/403

Abstract: In a vacuum pump in which the rotor blade in one stage has an outer diameter that is smaller at an outlet port side, or the rotor blade in one stage has an inner diameter that is larger at an outlet port side, at least one of an outer circumference portion or an inner circumference portion of the stator blade that is located immediately above the rotor blade having a smaller outer diameter or immediately above the rotor blade having a larger inner diameter has a tapered surface sloping down to an outlet port side. By providing the tapered surface, entering molecules are reflected at a right angle, sent toward an inner circumference side, and hit by the rotor blade in the upper stage. The molecules are thus sent to a next exhaustion stage.

公开(公告)号：US20230313812A1

公开(公告)日：2023-10-05

申请号：US17711661

申请日：2022-04-01

Applicant: Hamilton Sundstrand Corporation

Inventor： Richard A. Himmelmann

IPC: F04D29/26 ,  F04D29/056 ,  H02K5/20 ,  H02K7/18

CPC classification number: F04D29/263 ,  F04D29/056 ,  H02K5/207 ,  H02K7/1823 ,  H02K2205/03

Abstract: A blower including: a forward end; an aft end located opposite the forward end; a shaft located at the aft end; a flange located at the forward end; an internal surface defining an axial passageway within the blower; an external surface radially outward of the internal surface; one or more radial passageway formed within the flange and fluidly connected to the axial passageway, the radial passageway extending from the internal surface to the external surface; and a plurality of blower blades located within the flange and defining the radial passageway.

公开(公告)号：US11649828B2

公开(公告)日：2023-05-16

申请号：US17651959

申请日：2022-02-22

Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION

Inventor： Hiroyuki Miyata ,  Hideki Nagao

IPC: F04D29/20 ,  F04D29/044 ,  F04D29/043 ,  F04D29/053 ,  F04D29/054 ,  F04D29/58 ,  F04D29/28 ,  F04D25/02 ,  F04D25/16 ,  F04D29/26

CPC classification number: F04D29/20 ,  F04D29/043 ,  F04D29/044 ,  F04D29/053 ,  F04D29/054 ,  F04D29/584 ,  F04D29/5846 ,  F04D25/028 ,  F04D25/163 ,  F04D29/266 ,  F04D29/284

Abstract: A rotary machine includes a cylindrical rotary shaft extending in a direction of an axis, a fastening bolt having a bolt body that extends in a direction of an axis O in the rotary shaft to form fastening portions at both ends, a pair of rotary bodies each having an end portion in the direction of the axis that is fixed to each of the pair of fastening portions to be in contact with an end surface of the rotary shaft in the direction of the axis, and a bolt extension mechanism that temporarily extends the bolt body in the direction of the axis.

公开(公告)号：US11644037B2

公开(公告)日：2023-05-09

申请号：US17296323

申请日：2019-11-11

Applicant: Robert Bosch GmbH

Inventor： Michael Kurz

IPC: F04D17/10 ,  F04D23/00 ,  F04D29/02 ,  F04D29/28 ,  F04D29/42 ,  H01M8/04111 ,  F04D29/26

CPC classification number: F04D17/10 ,  F04D23/008 ,  F04D29/023 ,  F04D29/266 ,  F04D29/284 ,  F04D29/4206 ,  H01M8/04111

Abstract: The invention relates to a side-channel compressor (1) for a fuel cell system (37) for conveying and/or compressing a gaseous medium, in particular hydrogen, comprising a housing (3); a compressor chamber (30) which is situated in the housing (3) and which has at least one encircling side channel (19, 21); a compressor impeller (2) which is situated in the housing (3) and which is arranged so as to be rotatable about a rotational axis (4), wherein the compressor impeller (2) has conveying cells (5) arranged on the impeller circumference in the region of the compressor chamber (30); and in each case one gas inlet opening (14) formed on the housing (3) and one gas outlet opening (16), which are fluidically connected together via the compressor chamber (30), in particular the at least one side channel (19, 21). The housing (3) has a respective first and second end face (32, 34) radially to the rotational axis (4), each end face facing the compressor impeller (2), and a first and second functionally relevant gap dimension (36, 38) is formed in the region of each gap surface. According to the invention, the compressor impeller (2) is designed in multiple parts and has a first impeller shell (10) and a second impeller shell (12). The impeller shells (10, 12) are arranged adjacently to each other axially to the rotational axis (4) in particular, and each impeller shell is at least partly made of a plastic.