Windmill and blower comprising the same

    公开(公告)号:US11371524B2

    公开(公告)日:2022-06-28

    申请号:US16903353

    申请日:2020-06-16

    摘要: A windmill, including a first end plate, a second end plate, and a plurality of primary blades disposed between the first end plate and the second end plate. The first end plate includes a central part provided with a base connected to a motor shaft. The second end plate includes a central part provided with an air inlet; the space between every two adjacent blades forms an air channel. The plurality of primary blades each includes an outmost end with respect to the central part of the first end plate, and the outmost end extends out of an outer edge of the second end plate. The connection line of every two adjacent outmost ends of the plurality of primary blades forms a circle, and the diameter D1 of the circle is larger than the diameter D2 of the second end plate.

    Adapter for induced draft fan and induced draft fan comprising the same

    公开(公告)号:US11788554B2

    公开(公告)日:2023-10-17

    申请号:US17533025

    申请日:2021-11-22

    IPC分类号: F04D29/62 F04D25/08 F04D29/42

    摘要: An adapter for an induced draft fan includes an installation section; a transition section; and an exit section. The installation section and the exit section are disposed on two ends of the transition section, respectively. The installation section includes an inner ring, an outer ring, a connection plate, and a water storage cavity. The outer ring includes a first end and a second end; the first end of the outer ring is connected to the transition section; the second end of the outer ring is connected to a first end of the inner ring via the connection plate. The inner ring, the connection plate, and the outer ring are connected one by one to form the water storage cavity. The outer ring includes at least one drain hole communicating with the water storage cavity; and a drain pipe is disposed on the outer ring.

    Induced draft fan
    3.
    发明授权

    公开(公告)号:US11754091B2

    公开(公告)日:2023-09-12

    申请号:US17531775

    申请日:2021-11-21

    IPC分类号: F04D29/42

    CPC分类号: F04D29/4233

    摘要: An induced draft fan includes a motor, a volute, a wind wheel, and a conversion interface. The volute includes a cavity for accommodating the wind wheel. The volute further includes a bottom surface and a side surface. The bottom surface includes an air inlet and the side surface includes an air outlet. The air inlet and the air outlet communicate with the cavity. The conversion interface includes a connection section, a transition section, and an exit section. The connection section and the exit section are disposed on two ends of the transition section, respectively. The transition section tilts upward so that the exit section and the connection section are staggered with each other. The connection section includes a rectangular hollow frame including an upper side plate, a lower side plate, a left side plate, and a right side plate.

    Volute assembly and induced draft fan comprising the same

    公开(公告)号:US11988220B2

    公开(公告)日:2024-05-21

    申请号:US17523892

    申请日:2021-11-10

    摘要: A volute assembly includes a volute body, a cover plate, and a seal. The volute body includes a top plate, a side plate protruding axially from an edge of the top plate, a cavity formed by the top plate and the side plate, and an exhaust duct disposed on the side plate and communicating with the cavity. The side plate includes a first bottom edge and a plurality of clamping blocks disposed at intervals on the first bottom edge. The cover plate includes a bottom plate and an annular sleeve surrounding the bottom plate. The annular sleeve includes a second bottom edge and a flange protruding from the second bottom edge. The flange includes a plurality of buckles disposed at intervals. The seal is disposed around the annular sleeve and is supported by the flange. The side plate is matched with the annular sleeve in shape.

    Wind wheel and blower comprising the same

    公开(公告)号:US11519421B2

    公开(公告)日:2022-12-06

    申请号:US16503608

    申请日:2019-07-04

    IPC分类号: F04D29/28 F04D17/02 F04D29/30

    摘要: A wind wheel including a first air plate, a second air plate, and a plurality of blades disposed between the first air plate and the second air plate. The first air plate includes a central part and an air inlet disposed in the central part; each two adjacent blades form an air duct. The plurality of blades each includes an inlet section next to the air inlet, an intermediate section, and an outlet section. The thickness of the intermediate section is greater than the thickness of the inlet section and the thickness of the outlet section.

    Volute assembly and induced draft fan comprising the same

    公开(公告)号:US11118595B2

    公开(公告)日:2021-09-14

    申请号:US16729325

    申请日:2019-12-28

    IPC分类号: F04D29/08 F04D17/10

    摘要: A volute assembly including a volute and a cover plate. The volute includes a cavity. The cover plate is disposed on the volute and covers the cavity. The cover plate includes an air inlet; the volute includes an exhaust duct. The exhaust duct includes an air outlet. The exhaust duct includes a first part, a second part, and a third part sequentially connected in that order. The first part is directly connected to the volute. The air outlet is disposed on the third part. The inner diameter of the second part increases in the direction from the first part to the third part.

    Induced draft fan and gas furnace comprising the same

    公开(公告)号:US10480529B2

    公开(公告)日:2019-11-19

    申请号:US15826598

    申请日:2017-11-29

    摘要: An induced draft fan, including a volute including a chamber and an air discharge pipe; and a wind wheel disposed in the chamber of the volute. The wind wheel is connected to and operationally driven by a rotation shaft of a motor. The air discharge pipe is disposed on one side of the volute, and includes an inner pipe and an outer pipe surrounding the inner pipe. The inner pipe of the air discharge pipe communicates with the chamber, to form an air discharge passage. An annular groove is disposed between the inner pipe and the outer pipe; and the outer end of the outer pipe is provided with a curved groove, the curved groove extends axially and circumferentially to divide the outer pipe into a fixed part and a flexible part.