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公开(公告)号：US20150152875A1
公开(公告)日：2015-06-04
申请号：US14404259
申请日：2013-05-31
Applicant: DENSO CORPORATION
Inventor： Masaru Kamiya , Hideki Ooya , Kenji Yoshida
CPC classification number: F04D27/002 , F04D19/002 , F04D29/326 , F04D29/384 , F04D29/667 , F04D29/681 , F05D2240/303
Abstract: An air blower is provided with a drive motor and an air blowing fan which has a hub mounted to the drive motor and blades which are provided to the hub. The air blower is characterized in that serrations comprising triangle-shaped protrusions are provided to the front edge of each of the blades so as to be arranged along the front edge and in that the pitch, the height, or the direction of the serrations is changed according to the flow of air at a radial position on the air blowing fan.
Abstract translation: 鼓风机设置有驱动马达和送风风扇，该风扇具有安装在驱动马达上的轮毂和设置在轮毂上的叶片。 该鼓风机的特征在于，在每个叶片的前边缘处设有包括三角形突起的锯齿，以沿着前边缘布置，并且锯齿的间距，高度或方向改变 根据吹气风扇的径向位置处的空气流动。
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公开(公告)号：US10309422B2
公开(公告)日：2019-06-04
申请号：US15112706
申请日：2015-02-20
Applicant: DENSO CORPORATION
Inventor： Toshikatsu Kondou , Masashi Matsukawa , Youhei Kamiya , Masaru Kamiya , Takeshi Miyamoto , Isao Kondoh , Takashi Ito , Kazuhiro Takeuchi
Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.
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公开(公告)号：US10330339B2
公开(公告)日：2019-06-25
申请号：US15599588
申请日：2017-05-19
Applicant: DENSO CORPORATION
Inventor： Masaru Kamiya , Koji Ito , Shinya Kato
Abstract: Multiple projections are provided at a flow-change portion, which corresponds to such a portion of a wall surface of an A/C casing, at which velocity gradient of air current becomes larger in an area adjacent to the wall surface, in order to decrease aerodynamic sound generated by disturbed air current.
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公开(公告)号：US20130323098A1
公开(公告)日：2013-12-05
申请号：US13906401
申请日：2013-05-31
Applicant: DENSO CORPORATION
Inventor： Hideki Ooya , Masaru Kamiya
IPC: F04D29/38
CPC classification number: F04D29/384 , F04D29/681 , F05D2240/303
Abstract: TECHNICAL PROBLEMTo provides a blower which aims at both a noise reduction effect and the inherent blowing performanceSOLUTION TO PROGRAMAn axial flow blower which is provided with an electric motor, and a blower fan which has a hub which is attached to said electric motor and a plurality of blades which are provided at said hub in a radial manner, wherein in said axial flow blower, a negative pressure surface of a leading edge of each said blade, comprised of a negative pressure surface and a positive pressure surface, is provided with a plurality of triangle shape projections which have vertexes along the leading edge, and the positive pressure surface of the leading edge of each said blade is not provided with said triangle shape projections but is a smooth continuous surface.
Abstract translation: 技术问题提供一种旨在降低噪音效果和固有吹风性能的鼓风机解决方案的方案设置有电动机的轴流鼓风机和具有附接到所述电动机的轮毂的鼓风机风扇， 多个叶片，其以径向方式设置在所述轮毂处，其中在所述轴流鼓风机中，每个所述叶片的前缘的负压表面由负压表面和正压表面构成， 沿着前缘具有顶点的多个三角形突起，并且每个所述刀片的前缘的正压面没有设置所述三角形突起，而是平滑的连续表面。
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