公开(公告)号：US20190085866A1

公开(公告)日：2019-03-21

申请号：US16085795

申请日：2017-03-22

Applicant: Mitsuba Corporation

Inventor： Hidetake Ota ,  Tomonari Fujii ,  Hiroki Nagase

IPC: F04D29/54

Abstract: A cooling-fan-apparatus fan shroud includes: a cover wall that closes a space between a heat exchanger and a circumference of a fan; and a passing permitting frame part that is positioned between the fan and an attachment part to a vehicle at an outer side of the cover wall and that allows free passing of traveling air, wherein a reinforcement rib is provided at an opening of the passing permitting frame part, and at least part of the reinforcement rib is a deflection louver that guides the traveling air to a predetermined direction.

公开(公告)号：US11125249B2

公开(公告)日：2021-09-21

申请号：US16085795

申请日：2017-03-22

Applicant: Mitsuba Corporation

Inventor： Hidetake Ota ,  Tomonari Fujii ,  Hiroki Nagase

IPC: F04D29/54 ,  F01P11/10 ,  F01P5/06 ,  B60H1/00 ,  F04D19/00

Abstract: A cooling-fan-apparatus fan shroud includes: a cover wall that closes a space between a heat exchanger and a circumference of a fan; and a passing permitting frame part that is positioned between the fan and an attachment part to a vehicle at an outer side of the cover wall and that allows free passing of traveling air, wherein a reinforcement rib is provided at an opening of the passing permitting frame part, and at least part of the reinforcement rib is a deflection louver that guides the traveling air to a predetermined direction.

公开(公告)号：US11578639B2

公开(公告)日：2023-02-14

申请号：US17585565

申请日：2022-01-27

Applicant: MITSUBA Corporation

Inventor： Ryo Nonaka ,  Hidetake Ota

IPC: F01P1/06 ,  F04D29/54 ,  B60H1/00 ,  F04D19/00 ,  F01P5/06 ,  F01P5/04

Abstract: A fan shroud and a blower device are provided. The fan shroud includes a shroud wall surface and a plurality of ventilation openings. The shroud wall surface extends around a fan along a radial direction orthogonal to a rotation axis. The plurality of ventilation openings are formed through the shroud wall surface in a thickness direction of the shroud wall surface to allow passing of wind generated by a fan motor. A width of a wall surface side opening on a downstream side of the wind in the ventilation opening is smaller than a width of a lateral wall side opening on an upstream side of the wind in the ventilation opening.

公开(公告)号：US11143202B2

公开(公告)日：2021-10-12

申请号：US16625759

申请日：2018-08-22

Applicant: MITSUBA Corporation

Inventor： Hiroki Nagase ,  Hidetake Ota

IPC: F04D29/54 ,  F04D29/52 ,  F04D29/70 ,  F04D19/00

Abstract: A blower device includes a motor having an output shaft and a housing; a fan rotationally driven by the motor; and a shroud having a shroud body with a fan installation hole, and a motor mounting part for mounting the motor arranged inside the fan installation hole when viewed in an axial direction of the output shaft. The motor mounting part includes an inner cylinder surrounding a periphery of the motor from a radial outer side of the output shaft; an outer cylinder surrounding the inner cylinder from the radial outer side; and spokes connecting the inner and the outer cylinders. The inner cylinder includes a top wall covering the motor from above while the shroud is fixed. A back end edge of the top wall, which is located on a positive pressure side when the fan is rotated, is located closer to the positive pressure side than the housing.