• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A centrifugal fan with an internal motor and a one-side inlet of air, having a rotor with a blade-ring, inside of which a drive motor is located, according to the invention the fan has a stub (7) forming an extension of the motor´s shaft, taken out outside the fan housing through a hole (6) in a rear wall (5) opposite to the inlet of air (4).
    公开号:DK201770704A1
    申请号:DKP201770704
    申请日:2017-09-19
    公开日:2017-10-02
    发明作者:Michal Brzeski
    申请人:Pellasx Spolka Z O O Spolka Kommandytowa；
    IPC主号:
    专利说明:

    Centrifugal fan with an internal motor
    The object of the invention is a centrifugal fan equipped with an internal motor and a one-side inlet of air which is to be used in installations which, among others, are blowing up air into combustions chambers of pellets burners.
    There are well-known centrifugal fans with either a one-side or both-sides inlets of air which are driven by motors located outside or inside their rotors. The fans with one-side inlets of air have a shape of a cylinder the side surface of which is formed by a blade-ring of a rotor and the inlet of air is located in a space which surrounds the motor. The base of that cylinder, which is opposite to the inlet of air, is a rear wall of the fan, and it is supposed to be used for its fastening.
    From the patent application US 2005/0047916 A1 is known a centrifugal fan with an internal motor and one-side inlet of air, having a rotor with a blade-ring, inside of which a drive motor is located, whereby the fan has a stub forming an extension of the motor's shaft, taken out outside the fan housing through a hole in a rear wall opposite to the inlet of air.
    According to the invention the centrifugal fan with the internal motor and the one-side inlet of air is equipped with a blade-ring rotor, inside of which the drive motor is located. The fan has a stub, which is an extension of the motor shaft and it is taken out outside a fan housing through the hole in a wall opposite to the inlet of air. The stub has some worm cutting on its side surface.
    According to the concerned invention this centrifugal fan makes it possible to use its motor for driving other mechanisms taking part in a technological process, especially in the fuel combustion process in the various heating systems. For example, it provides a drive for the whole fuel and air supply assembly, and another, separate motor, for the pellets burner supplying system is not necessary. The stub taken out outside the rear wall of the fun can be used, for example, for connecting the fun's motor with a transmission which in turn can be connected with a fuel feeder.
    The subject of the invention can be seen in the drawing, Fig.l shows a side view of the centrifugal fan with the internal motor, and Fig.2 shows a view from the side opposite to the inlet of air.
    The centrifugal fan according to the invention has a rotor 1 with a blade ring 2, inside of which a drive motor 3 is located. A space surrounding the motor 3 is an inlet of air 4, whereas on the opposite side there is a rear wall 5 of the fan having a centric hole 6. Throughout this hole a cylindrical stub 7 is taken out outside forming an extension of a shaft of the motor 3, which is not shown. The stub 7 has some worm cutting on its side surface 8.
    权利要求:
    Claims (2)
    [1] Claim
    [2] 1. Centrifugal fan with an internal motor and single-sided inlet, compri-sing a rotor with a blade ring inside which there is a driving motor, while on the motor shaft - as its extension -there is a cylindrical stub running outside the fan housing through the opening in the rear wall, opposite the air inlet, characteristic in that the side surface of the cylindrical stub (7) has worm cutting (8).
    类似技术:
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    同族专利:
    公开号 | 公开日
    PL123820U1|2016-08-29|
    CZ2017552A3|2017-11-01|
    DE212016000045U1|2017-09-07|
    WO2016137346A1|2016-09-01|
    FI20175833A|2017-09-19|
    DK180010B1|2020-01-17|
    HU4854U|2018-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5117143A|1991-03-22|1992-05-26|Electric Motors And Specialities, Inc.|Anti-windmilling motor|
    JP2000179492A|1998-12-18|2000-06-27|Nippon Keiki Seisakusho:Kk|Thin centrifufal blowing fan|
    TWM240487U|2003-08-29|2004-08-11|Datech Technology Co Ltd|Modified centrifugal fan wheel|
    US8513839B1|2009-05-05|2013-08-20|John L Larson|Fan with damper|
    法律状态:
    2020-01-17| PME| Patent granted|Effective date: 20200117 |
    2021-09-15| PBP| Patent lapsed|Effective date: 20210210 |
    优先权:
    申请号 | 申请日 | 专利标题
    PL123820U|PL71116Y1|2015-02-23|Centrifugal fan with internal motor|
    PCT/PL2016/000013|WO2016137346A1|2015-02-23|2016-02-10|The centrifugal fan with an internal motor|
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