公开(公告)号：US20240309888A1

公开(公告)日：2024-09-19

申请号：US18606207

申请日：2024-03-15

Applicant: Metalmark Innovations, PBC

Inventor： Sissi LIU

IPC: F04D29/66 ,  F04D17/02 ,  F04D29/28

CPC classification number: F04D29/667 ,  F04D17/02 ,  F04D29/281

Abstract: A fan comprises a body section including a casing and a plurality of propellers; and a damping element configured for reduction of noise and including a plurality of bristles connected to the body section, wherein the plurality of bristles include at least one of a serration and a velvet bristles. In some embodiments, the plurality of bristles are integral to the body section. In some other embodiments, the plurality of bristles are a plurality of attachments attached to the body section. In some embodiments, the plurality of bristles are flexible. In some embodiments, the plurality of bristles include the serration; and the serration includes a plurality of curved serrations.

公开(公告)号：US11867194B2

公开(公告)日：2024-01-09

申请号：US17624075

申请日：2019-09-27

Applicant: GD MIDEA ENVIRONMENT APPLIANCES MFG CO., LTD. ,  MIDEA GROUP CO., LTD.

Inventor： Qing Wang ,  Zhenbin He ,  Wenbo Du ,  Xin Yang ,  Hanfei Chen ,  Zhiping Sun ,  Mingbi Li

IPC: F04D29/28 ,  F04D17/02 ,  F04D29/42

CPC classification number: F04D29/281 ,  F04D17/02 ,  F04D29/4226

Abstract: An impeller apparatus includes a housing, an impeller, and a heat generation member. The housing includes an air duct formed in the housing. The air duct includes a first air duct and a second air duct successively connected to each other. The second air duct has a non-blocking area. The impeller is arranged in the first air duct. The heat generation member is rotatably arranged in the second air duct and has a blocking state and a non-blocking state. In the blocking state, the heat generation member blocks the second air duct, in the non-blocking state, the heat generation member is accommodated in the non-blocking area and does not block the second air duct.

公开(公告)号：US11649026B2

公开(公告)日：2023-05-16

申请号：US17577587

申请日：2022-01-18

Applicant: Sharrow Engineering LLC

Inventor： Gregory Charles Sharrow

IPC: B63H1/26 ,  F04D29/38 ,  B64C11/18 ,  B64C11/00 ,  F01D5/14 ,  F02K3/06 ,  F03D1/06 ,  B64C11/20 ,  B64C11/16 ,  F04D17/02

CPC classification number: B63H1/265 ,  B64C11/00 ,  B64C11/005 ,  B64C11/16 ,  B64C11/18 ,  B64C11/20 ,  F01D5/141 ,  F02K3/06 ,  F03D1/0625 ,  F04D29/384 ,  F04D17/025 ,  F05B2210/16 ,  F05B2250/24 ,  F05B2250/25 ,  F05B2250/26 ,  Y02E10/72 ,  Y02T50/60 ,  Y10T29/49332

Abstract: A propeller having a plurality of blades extending radially outward from a hub, the blades forming a loop. Each loop having an intake portion, an exhaust portion and a tip portion extending radially outward from the hub and a gap between the intake root and the exhaust root. The tip portion of each of the blades is 30%-75% of the blade, the tip portion beginning at a first deviation from zero of the roll value and extending to 90 degrees, wherein roll value is zero in a plane parallel to the hub axis, and wherein the blades have a vertical angle between −45 degrees and 45 degrees throughout.

公开(公告)号：US11635087B1

公开(公告)日：2023-04-25

申请号：US17552794

申请日：2021-12-16

Applicant: YUAN FANG APPLIED MATERIALS CO., LTD

Inventor： Wen-Cheng Chien

IPC: F04D17/02 ,  F04D29/28 ,  F04D17/16 ,  F04D19/00 ,  F04D29/32 ,  F04D29/38 ,  F04D29/30

Abstract: An airflow-doubling vane structure includes an axle, an inner vane unit, and an outer vane unit. The inner vane unit includes a plurality of vanes provided around a center defined by the axle and can be rotated along with the axle. The vanes of the inner vane unit are centrifugal vanes. The outer vane unit includes a plurality of vanes provided around the center defined by the axle and around the inner vane unit and can be rotated along with the axle. The vanes of the outer vane unit are axial-flow vanes and extend a certain radial distance from the vanes of the inner vane unit.

公开(公告)号：US20230011552A1

公开(公告)日：2023-01-12

申请号：US17856053

申请日：2022-07-01

Applicant: Larry P. LAPOINTE

Inventor： Larry P. LAPOINTE

IPC: F04D25/02 ,  F04D17/02 ,  F16H7/06 ,  F16H7/12

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：US11499569B2

公开(公告)日：2022-11-15

申请号：US17254328

申请日：2020-06-16

Applicant: Carrier Corporation

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

IPC: F04D29/44 ,  F04D17/02 ,  F04D17/12 ,  F04D29/28 ,  F04D29/50

Abstract: A compressor includes a housing. An impeller is located within the housing and rotatable about an impeller axis in a first rotational direction. A rotor section is rotatable about the impeller axis in a second rotational direction opposite the first rotational direction.

公开(公告)号：US20220228593A1

公开(公告)日：2022-07-21

申请号：US17622941

申请日：2020-07-20

Applicant: Carrier Corporation

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

IPC: F04D17/02 ,  F04D19/02 ,  F04D25/02 ,  F04D29/32

Abstract: 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：US11037773B2

公开(公告)日：2021-06-15

申请号：US16525165

申请日：2019-07-29

Applicant: Bruker Daltonik GmbH

Inventor： Urs Steiner ,  Jochen Franzen

IPC: H01J49/04 ,  F04D19/04 ,  H01J49/24 ,  H01J49/26 ,  F04D29/38 ,  F04D17/02 ,  F04D25/12

Abstract: The invention relates to turbo molecular pumps enabling high pumping speed. The disclosure suggests using one or more cage-like rotor stages to optimize pumping speed on vacuum systems with low gas flows and low ultimate pressures. This allows for a smaller motor as well as smaller overall form factor and makes it well suited, in particular, for compact mass spectrometers and desk-top mass spectrometers.

公开(公告)号：US10400795B2

公开(公告)日：2019-09-03

申请号：US15215373

申请日：2016-07-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Joshua Tyler Mook ,  Christopher Williams

IPC: F02C7/052 ,  F04D29/70 ,  B01D45/12 ,  B04C3/06 ,  F01D5/08 ,  F01D25/12 ,  F04D17/02 ,  F02C6/08

Abstract: The present disclosure generally relates to separating solid particles from an airflow in a gas turbine engine. A separator includes a plurality of vortex chambers arranged about a longitudinal axis of the gas turbine engine, each vortex chamber having a clean air outlet at a first end, a dirty outlet at a second end, and an air inlet transverse to the vortex chamber located at the first end. The separator also includes a sealable collection chamber in fluid communication with the dirty outlet of the each of the plurality of vortex chambers.

公开(公告)号：US10309418B2

公开(公告)日：2019-06-04

申请号：US15506642

申请日：2015-10-19

Applicant: HUANGSHI XYZ POWER TECHNOLOGY CO., LTD

Inventor： Zhifang Wang ,  Tao Chen

IPC: F02B39/04 ,  F02B33/40 ,  F04D25/02 ,  F04D29/58 ,  F16H1/28 ,  F16H1/32 ,  F04D17/02 ,  F04D29/42 ,  F16H13/08 ,  F16H37/02 ,  F16H55/34 ,  F16H57/08

Abstract: The invention discloses a high-transmission-ratio suspension shaft centrifugal supercharger which comprises a transmission unit, a fan supercharging unit and a cooling unit; the transmission unit is composed of a belt wheel, a planetary gear mechanism, a friction wheel group and a suspension mainshaft, the planetary gear mechanism comprises a sun gear and a planetary gear both installed in a gearbox, the sun gear and the belt wheel are in coaxial installation and rotate together, the planetary gears are distributed at the periphery of the sun gear in a 120 degree symmetric way and are meshed with and follow up the sun gear; the friction wheel group comprises friction wheels arranged in a sealed box and arranged coaxially with corresponding planetary gears; the suspension mainshaft generates contact friction with surfaces of the friction wheels and is driven to rotate together with the friction wheels; the cooling unit is used to pump out high-temperature lubricating oil in the gearbox and the sealed box, and lubricating oil is returned after cooling is performed. According to the invention, the supercharger is substantially improved in transmission precision and speed increasing ratio at a high speed range, and also possesses characteristics of long safe life, convenience for mounting, good heat dispersion performance, low noise and the like.