公开(公告)号：US12221968B1

公开(公告)日：2025-02-11

申请号：US18656599

申请日：2024-05-07

Applicant: ACCTON TECHNOLOGY CORPORATION

Inventor： Jih-Che Yeh ,  Ting Jui Chang ,  Ting-Min Chen

IPC: F04D25/02 ,  F04D19/00 ,  F04D29/32

Abstract: A rotor assembly includes a rotation axis, a propeller, an active ring, a driver link, and a reciprocating spring. The propeller includes a hub portion and fan blades. The hub portion is located on one end of the rotation axis, and the inner sidewall of the hub portion has a gear structure surrounding the rotation axis. The active ring sleeves on the rotation axis. The driver link is pivotally connected to the active ring. The reciprocating spring is telescopically disposed on the active ring and abuts against the driver link. When the rotation axis drives the active ring to rotate, the driver link abuts against the gear structure of the hub portion and compresses the reciprocating spring. When the rotation axis stops rotating, the reciprocating spring returns to an initial position to push the driver link to separate from the gear structure.

公开(公告)号：US12123422B2

公开(公告)日：2024-10-22

申请号：US17856053

申请日：2022-07-01

Applicant: Larry P. Lapointe

Inventor： Larry P. Lapointe

IPC: F04D25/02 ,  F04D17/02

CPC classification number: F04D25/02 ,  F04D17/02

Abstract: A fan apparatus may include a frame, a fan, and a drive mechanism. The fan may be supported for rotation relative to the frame and may include a fan shaft and a plurality of blades extending outward from the fan shaft. The drive mechanism may include a driven wheel, a drive shaft, a first drive wheel, a second drive wheel, and a torque-transmission loop. The driven wheel may be mounted on the fan shaft. The drive shaft may be supported for rotation relative to the frame. The first drive wheel may be mounted on the drive shaft. The second drive wheel may be mounted on the drive shaft. The torque-transmission loop may be engaged with the driven wheel and a selected one of the first and second drive wheels.

公开(公告)号：US20240271627A1

公开(公告)日：2024-08-15

申请号：US18168734

申请日：2023-02-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Viktor Kilchyk ,  Brent J. Merritt ,  Matthew L. Pess

IPC: F04D25/02 ,  B64D13/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/40 ,  F25B9/00 ,  F25B9/06

CPC classification number: F04D25/026 ,  B64D13/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/403 ,  F25B9/004 ,  F25B9/06 ,  B64D2013/064 ,  B64D2013/0648

Abstract: Aircraft air cycle machines include a housing, a shaft arranged within the housing, and a first wheel assembly operably coupled to the shaft and arranged within the housing. The first wheel assembly is configured to rotationally drive the shaft. A second wheel assembly is operably coupled to the shaft and configured to be rotationally driven by the shaft. A magnetic assembly is arranged within the housing and along the shaft. The magnetic assembly includes a stator assembly fixedly connected to the housing and a rotor assembly rotationally coupled to the shaft. The magnetic assembly is arranged along the shaft to provide a gear ratio between the first wheel assembly and the second wheel assembly.

公开(公告)号：US20240159239A1

公开(公告)日：2024-05-16

申请号：US18281601

申请日：2022-03-11

Applicant: Hilti Aktiengesellschaft

Inventor： Michael LACHER

IPC: F04D25/02 ,  F16D27/00 ,  F16D27/09

CPC classification number: F04D25/026 ,  F16D27/004 ,  F16D27/09 ,  F16D27/14 ,  F16D2200/0008

Abstract: A power tool is provided having a motor and a motor shaft, wherein a fan wheel in the power tool is designed to generate an air flow for cooling the motor. The power tool provides a coupling formed magnetically between the fan wheel and the motor shaft such that the motor shaft drives the fan wheel in a rotary movement with a speed that is less than a speed of the motor shaft. As a result of the magnetic coupling of the fan wheel and motor shaft, the movements of the two components can be decoupled from one another such that an increase in the rotational speed of the motor shaft does not also result in an increased speed at the fan wheel. As a result, fan losses can be considerably reduced and the efficiency of the motor of the power tool can be significantly improved. A method is also provided for cooling a motor of a power tool, wherein there is a magnetic coupling between a fan wheel and a motor shaft of the power tool.

公开(公告)号：US11950889B2

公开(公告)日：2024-04-09

申请号：US16952444

申请日：2020-11-19

Applicant: Magenta Medical Ltd.

Inventor： Yosi Tuval ,  Zev Sohn ,  Ehud Schwammenthal ,  Gad Lubinsky

IPC: A61B5/0215 ,  A61M60/135 ,  A61M60/148 ,  A61M60/237 ,  A61M60/414 ,  A61M60/419 ,  A61M60/422 ,  A61M60/531 ,  A61M60/554 ,  A61M60/818 ,  A61M60/824 ,  A61M60/829 ,  A61M60/833 ,  A61M60/857 ,  A61M60/896 ,  F04D3/02 ,  F04D7/00 ,  F04D15/00 ,  F04D25/02 ,  F04D29/041 ,  F04D29/042 ,  F04D29/18 ,  F04D29/24

CPC classification number: A61B5/0215 ,  A61M60/135 ,  A61M60/148 ,  A61M60/237 ,  A61M60/414 ,  A61M60/419 ,  A61M60/422 ,  A61M60/531 ,  A61M60/554 ,  A61M60/818 ,  A61M60/824 ,  A61M60/829 ,  A61M60/833 ,  A61M60/857 ,  A61M60/896 ,  F04D3/02 ,  F04D7/00 ,  F04D15/0066 ,  F04D25/02 ,  F04D29/041 ,  F04D29/042 ,  F04D29/181 ,  F04D29/247 ,  A61M2205/0266 ,  A61M2205/3317 ,  A61M2205/3327 ,  A61M2205/3334 ,  A61M2205/3344 ,  A61M2205/3365 ,  A61M2205/50 ,  A61M2230/04 ,  A61M2230/30

Abstract: Apparatus and methods are described including a left ventricular assist device. The left ventricular assist device includes an impeller configured to be placed inside a subject's left ventricle, and to pump blood from the subject's left ventricle to the subject's aorta, by rotating. A frame is disposed around the impeller. A tube traverses the subject's aortic valve, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle. The distal portion of the tube defines one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube. A braided element is configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings. Other applications are also described.

公开(公告)号：US11920605B2

公开(公告)日：2024-03-05

申请号：US17835113

申请日：2022-06-08

Applicant: BorgWarner Inc.

Inventor： Tyler Ransom Garrard ,  Erwin Perry Ellwood, III ,  Frederick Michael Huscher

IPC: F04D29/12 ,  F04D17/10 ,  F04D25/02 ,  F04D25/06 ,  F04D29/063 ,  F04D29/10 ,  F16J15/30 ,  H01M8/04014

CPC classification number: F04D29/122 ,  F04D25/0606 ,  H01M8/04014 ,  F04D29/102 ,  F05B2240/57 ,  F05B2280/2006 ,  F16J15/30

Abstract: A rotating machine includes a shaft, a first impeller wheel, and a second impeller wheel. The rotating machine also includes a first seal assembly including a first carbon ring disposed about the shaft, with the first carbon ring having a first carbon surface. The first seal assembly also includes a first mating ring disposed about the shaft, with the first mating ring having a first mating surface facing and configured to contact the first carbon surface. The rotating machine additionally includes a second seal assembly including a second carbon ring disposed about the shaft, with the second carbon ring having a second carbon surface. The second seal assembly also includes a second mating ring disposed about the shaft, with the second mating ring having a second mating ring surface facing and configured to contact the second carbon surface.

公开(公告)号：US11898566B2

公开(公告)日：2024-02-13

申请号：US17320914

申请日：2021-05-14

Applicant: Thermodyn SAS

Inventor： Yoann Vidalenc ,  Benjamin Defoy ,  Thomas Alban

IPC: F04D25/06 ,  F04D17/10 ,  F04D29/054 ,  F04D29/058 ,  F04D25/00 ,  F04D25/16 ,  F04D29/051 ,  F04D25/02

CPC classification number: F04D25/06 ,  F04D17/10 ,  F04D29/054 ,  F04D29/058 ,  F04D25/02 ,  F04D25/0606 ,  F04D25/16 ,  F04D29/051

Abstract: A motor-driven compressor equipped with multiple compression sections, the motor-driven compressor including, at least one housing, at least two drive shafts, the at least two drive shafts being rotatably supported in the housing by at least two bearings, a flexible coupling device connecting the drive shafts, an electric motor mounted on a first compression shaft of the at least two drive shafts, and at least two compression sections. A first compression section of the at least two compression sections is cantilevered at a free end of a first compression shaft of the at least two drive shafts, and a second compression section is mounted between two bearings on a second compression shaft of the at least two drive shafts.

公开(公告)号：US11788547B2

公开(公告)日：2023-10-17

申请号：US17852740

申请日：2022-06-29

Applicant: Mitsubishi Electric Corporation

Inventor： Takuya Teramoto ,  Takahide Tadokoro ,  Katsuyuki Yamamoto ,  Hiroya Ito ,  Yuki Ugajin ,  Shingo Hamada ,  Takashi Ikeda ,  Takafumi Abe

IPC: F04D29/38 ,  F04D25/02 ,  F04D29/053

CPC classification number: F04D29/38 ,  F04D25/02 ,  F04D29/053 ,  F04D29/384 ,  F04D29/386 ,  F04D29/388

Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.

公开(公告)号：US20230287900A1

公开(公告)日：2023-09-14

申请号：US18018157

申请日：2021-06-11

Applicant: ebm-papst Mulfingen GmbH & Co. KG ,  Prima Klima Trading CZ, s.r.o.

Inventor： Markus GELBING ,  Reinhard STROHMEIER ,  Jens MÜLLER ,  Christian GEISS ,  Gerhard REEH

IPC: F04D29/44 ,  F04D25/02 ,  F04D17/10 ,  F04D29/28 ,  F04D29/42

CPC classification number: F04D29/444 ,  F04D25/02 ,  F04D17/10 ,  F04D29/281 ,  F04D29/4226

Abstract: A duct fan (1) has a centrifugal fan with a motor (10) and a centrifugal impeller (11). A housing has an intake shell (2) on an intake side, that defines an intake portion (52), and accommodates the centrifugal impeller (11). The housing also has an exhaust shell (3) on an exhaust side that defines an exhaust portion (53). A bowl-shaped motor mount (5) is arranged in the exhaust shell (3). A continuous flow channel (20) to the exhaust portion (53) is formed between the motor mount (5) and the exhaust shell (3). A flow (S) generated by the centrifugal impeller (11), during operation, is guided by the flow channel (20).

公开(公告)号：US20230258192A1

公开(公告)日：2023-08-17

申请号：US18141049

申请日：2023-04-28

Applicant: Raytheon Technologies Corporation

Inventor： Stephen G. Pixton ,  Matthew R. Feulner ,  Marc J. Muldoon ,  Xinwen Xiao

IPC: F04D25/02 ,  F02C7/36 ,  F02C9/18 ,  F02K3/06

CPC classification number: F04D25/02 ,  F02C7/36 ,  F02C9/18 ,  F02K3/06 ,  F05D2220/32 ,  F05D2260/4031

Abstract: A gas turbine engine includes a fan section that includes a fan with fan blades. The fan section drives air along a bypass flow path in a bypass duct. A gear reduction is in driving engagement with the fan and has a gear reduction ratio of greater than 3.0 and less than 4.0. A low spool includes a low pressure turbine that drives a low pressure compressor and drives the gear reduction to drive the fan at a speed slower than the low pressure turbine. The low pressure compressor includes a greater number of stages than the low pressure turbine. A high spool includes a high pressure turbine that drives a high pressure compressor. The high pressure compressor is a nine stage high pressure compressor and includes a pressure ratio per stage of greater than or equal to 1.20 and less than or equal to 1.33.