公开(公告)号：US20190072111A1

公开(公告)日：2019-03-07

申请号：US16183866

申请日：2018-11-08

Applicant: DENSO CORPORATION

Inventor： Kazuhiro TAKEUCHI ,  Masashi MATSUKAWA

IPC: F04D29/66 ,  F04D19/00 ,  F04D29/52

Abstract: A fan shroud includes a bell mouth portion and a rectangular portion. The bell mouth portion includes a circular wall that defines a discharge port and accommodates a propeller fan. The rectangular portion defines a suction port and includes a close wall close to the circular wall, and a farther wall farther from the circular wall than the close wall is from. The close wall includes a closest portion closest to the circular wall in the close wall, and a pair of connection portions connected to the farther wall. The closest wall is between the pair of connection portions. The fan shroud includes an opening portion extending through the rectangular portion from inside to outside of the rectangular portion. At least one of the pair of connection portions includes the opening portion, and the closest portion does not include the opening portion.

公开(公告)号：US20190145427A1

公开(公告)日：2019-05-16

申请号：US16097853

申请日：2017-05-10

Applicant: DENSO CORPORATION

Inventor： Kazuhiro TAKEUCHI ,  Masashi MATSUKAWA ,  Isao KONDO

IPC: F04D29/54 ,  F04D29/66 ,  F04D29/68 ,  F04D29/16 ,  F04D29/32

Abstract: A fan shroud, in which air flows from a suction port to an outlet port, includes: a bell mouth part having a circular wall, the outlet port being formed by the bell mouth part; and a rectangle part having a proximity wall located adjacent to the circular wall and a distal wall distant from the circular wall than the proximity wall, the suction port being formed by the rectangle part. The proximity wall has a most close area that is most close to the circular wall. The circular wall has an extended wall part extended in an axial direction of a propeller fan than a residual portion of the circular wall. The extended wall part is provided along a rotational direction of the propeller fan from a position opposing the most close area.

公开(公告)号：US20160333893A1

公开(公告)日：2016-11-17

申请号：US15112710

申请日：2015-02-20

Applicant: DENSO CORPORATION

Inventor： Toshikatsu KONDOU ,  Youhei KAMIYA ,  Masaru KAMIYA ,  Takeshi MIYAMOTO ,  Masashi MATSUKAWA ,  Isao KONDOH ,  Takashi ITO ,  Kazuhiro TAKEUCHI

IPC: F04D29/66 ,  F04D29/32 ,  F04D29/52 ,  F04D29/16

CPC classification number: F04D29/667 ,  F04D19/002 ,  F04D29/164 ,  F04D29/326 ,  F04D29/526

Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at a 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. A radially outer end part at an end on an air-flow upstream side of the ring portion is positioned outward in a radial direction of a rotary shaft in the blower fan, as toward the air-flow upstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.

Abstract translation: 鼓风扇包括从旋转中心设置的凸台沿旋转方向彼此间隔开的径向延伸的多个叶片，以及以环形连接叶片的外周端部的环形部分。 环形部分的气流上游侧端部的径向外端部朝向气流上游侧位于鼓风机风扇的旋转轴的径向外侧。 因此，鼓风机可以防止回流空气旋转，从而降低噪音。

公开(公告)号：US20160341220A1

公开(公告)日：2016-11-24

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

IPC: F04D29/66 ,  B60H1/00 ,  F04D25/08 ,  F04D29/16 ,  F04D29/54

CPC classification number: F04D29/667 ,  B60H1/00464 ,  B60H2001/006 ,  F04D19/002 ,  F04D25/08 ,  F04D29/164 ,  F04D29/326 ,  F04D29/526 ,  F04D29/541 ,  F05B2240/33 ,  F05B2260/96 ,  F05B2280/6015

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.

Abstract translation: 鼓风扇包括多个叶片，其从设置在旋转中心处的凸台沿旋转方向彼此间隔开地径向延伸，并且环形部分将环形外围的叶片的外周端连接起来。 圆筒部的气流下游侧的端部的内周壁面相对于气流下游侧的端部配置在鼓风扇的旋转轴的径向外侧 侧部分。 圆筒部的气流下游侧的端部朝向气流下游侧位于旋转轴的径向外侧。 因此，鼓风机可以防止回流空气旋转，从而降低噪音。