公开(公告)号：US20210245575A1

公开(公告)日：2021-08-12

申请号：US17240725

申请日：2021-04-26

Applicant: DENSO CORPORATION

Inventor： Etsuro YOSHINO ,  Yasuhiro TAKEUCHI ,  Yuuji OKAMURA ,  Jun YAMAOKA ,  Masaharu SAKAI ,  Yusuke KOMATSUBARA ,  Kazushi SHIKATA ,  Yasuhiko NIIMI

IPC: B60H1/00

Abstract: An airflow generating device includes an airflow generating portion, a duct, and a controller. The airflow generating portion is configured to generate an airflow. The duct is configured to guide the airflow to a blowing outlet through which the airflow is blown out toward a passenger in a vehicle cabin. The controller is configured to cause the airflow to be intermittently blown out through the blowing outlet by controlling a frequency of a pulse voltage applied to the air flow generating portion and a duty ratio of a pulse width to a pulse period of the pulse voltage. The controller is configured to control the duty ratio and the frequency of the voltage such that the airflow is blown out through the blowing outlet at a speed between a predetermined lower limit, inclusive, and a maximum lower limit, non-inclusive, which is greater than the lower limit.

公开(公告)号：US20210031596A1

公开(公告)日：2021-02-04

申请号：US17065045

申请日：2020-10-07

Applicant: DENSO CORPORATION

Inventor： Jun YAMAOKA ,  Masaharu SAKAI ,  Yuuji OKAMURA ,  Yasuhiko NIIMI ,  Takahito NAKAMURA ,  Yusuke KOMATSUBARA ,  Marie NAGAHAMA ,  Yasuki OMORI ,  Shogo HAYAKAWA ,  Satoshi TAKOTANI

IPC: B60H1/34 ,  F24F13/072

Abstract: An air discharge device includes an air discharge unit for discharging an air flow. The air discharge unit includes at least one main hole from which an air flow is blown out as a working air flow, and a separation structure configured to separate a central portion of a thickness of a velocity boundary layer of the working air flow from a center line of the main hole at a downstream side of the main hole.

公开(公告)号：US20210016634A1

公开(公告)日：2021-01-21

申请号：US17064831

申请日：2020-10-07

Applicant: DENSO CORPORATION

Inventor： Jun YAMAOKA ,  Masaharu SAKAI ,  Yuuji OKAMURA ,  Shogo HAYAKAWA ,  Yasuki OMORI ,  Satoshi TAKOTANI ,  Takashi KANEKO ,  Marie NAGAHAMA ,  Yasuhiko NIIMI ,  Yusuke KOMATSUBARA ,  Takahito NAKAMURA

IPC: B60H1/34 ,  F24F13/072

Abstract: An air discharge device includes a duct that defines a flow passage through which a working air flow to be discharged passes, and a hole forming member defining an air discharge hole as an outlet of the working air flow. The hole forming member has a vortex generation structure configured to generate an auxiliary vortex having a vortex characteristic including a vortex rotation direction and a vortex axis direction. The vortex characteristic of the auxiliary vortex is different from that of a lateral vortex generated by the working air flow at a downstream side of the air discharge hole. The vortex generation structure is configured in the hole forming member so that the auxiliary vortex collides with the lateral vortex in a state where at least one of the vortex rotation direction and the vortex axial direction of the vortex characteristic is different from that of the lateral vortex.

公开(公告)号：US20240208662A1

公开(公告)日：2024-06-27

申请号：US18600936

申请日：2024-03-11

Applicant: DENSO CORPORATION

Inventor： Hideaki SUZUKI ,  Masaharu SAKAI ,  Kazutoshi NISHINAKAMURA ,  Shun SUGITA ,  Haruhiko WATANABE ,  Jiro HAYASHI

IPC: B64D33/10

CPC classification number: B64D33/10

Abstract: An EDS includes a motor housing and an inverter housing. The inverter housing includes inverter fins. The motor housing includes forward inclined fins serving as motor fins. The forward inclined fins are provided on an outer peripheral surface. The forward inclined fins are inclined in a circumferential direction with respect to a motor axis. The forward inclined fins extend straight in a direction inclined with respect to the motor axis. The entire of each of the forward inclined fins is an inclined portion. In each of the forward inclined fins, a fin downstream end is located at a position separated from a fin upstream end toward a downstream side in the circumferential direction.

公开(公告)号：US20160084262A1

公开(公告)日：2016-03-24

申请号：US14956832

申请日：2015-12-02

Applicant: NIPPON SOKEN, INC. ,  DENSO CORPORATION

Inventor： Yasushi MITSUISHI ,  Masaharu SAKAI ,  Masanori YASUDA ,  Shouichi IMAHIGASHI ,  Syunsuke ISHIGURO

IPC: F04D29/42 ,  F04D17/10

CPC classification number: F04D29/4233 ,  F04D17/10 ,  F04D17/16 ,  F04D17/162 ,  F04D29/4213 ,  F04D29/4226

Abstract: A centrifugal blower provided with a spiral shaped scroll chamber where a bottom part of the scroll chamber gradually expands downward in the axial direction of the fan well along with expansion of the spiral and where a flow area gradually expands toward an air outlet from a spiral start part of the casing, the centrifugal blower having an initial slant angle θ0 at the spiral start part of the bottom part of the scroll chamber of a range of angle of 5.2° to 27.5° or setting a backflow prevention rib at the fan outlet.

Abstract translation: 一种设置有螺旋形涡旋室的离心式鼓风机，其中涡旋室的底部随着螺旋的膨胀在风扇的轴向方向上逐渐向下膨胀，并且流动面积从螺旋起始向空气出口逐渐膨胀 壳体的一部分，具有初始倾斜角度的离心式鼓风机;在涡旋室底部的螺旋起始部分处的角度为5.2°至27.5°的角度的0或在风扇出口处设置防回流肋 。

公开(公告)号：US20210291630A1

公开(公告)日：2021-09-23

申请号：US17343118

申请日：2021-06-09

Applicant: DENSO CORPORATION

Inventor： Yasuhiro TAKEUCHI ,  Etsuro YOSHINO ,  Yuuji OKAMURA ,  Jun YAMAOKA ,  Masaharu SAKAI ,  Yusuke KOMATSUBARA ,  Yasuhiko NIIMI ,  Tatsuya YOSHIDA ,  Hidetaka NOMOTO

IPC: B60H1/34 ,  B60H1/00

Abstract: The air discharge device includes a duct defining: a main flow path through which an air flow passes; and a main hole opened in a flat shape to discharge the air flow as a working air flow toward a downstream from the main flow path. A throttle portion is provided in the duct to reduce a flow path height of the main flow path from an upstream of the air flow toward a downstream of the air flow. A plurality of partitions are arranged to divide the main flow path in a major direction into a pair of side flow paths and at least one center flow path. The plurality of partitions are disposed in the duct such that a flow path width of the center flow path is reduced from the upstream of the air flow toward the downstream of the air flow.

公开(公告)号：US20210017977A1

公开(公告)日：2021-01-21

申请号：US16931486

申请日：2020-07-17

Applicant: DENSO CORPORATION

Inventor： Tatsuya YOSHIDA ,  Masaharu SAKAI ,  Jun YAMAOKA ,  Hidetaka NOMOTO ,  Etsuro YOSHINO ,  Yasuhiro TAKEUCHI

IPC: F04B45/06

Abstract: An air blowing device includes a duct portion and a passage variable device. The duct portion forms a main passage through which an air flow passes, and an outlet is defined downstream of the main passage to blow out the air flow. The passage variable device is configured to change a passage area of the main passage so that the air flow becomes a pulsating flow and is blown out from the outlet.

公开(公告)号：US20240213855A1

公开(公告)日：2024-06-27

申请号：US18599557

申请日：2024-03-08

Applicant: DENSO CORPORATION

Inventor： Shun SUGITA ,  Masaharu SAKAI ,  Kazutoshi NISHINAKAMURA ,  Jiro HAYASHI

IPC: H02K9/22 ,  B64C29/00 ,  B64D27/357 ,  H02K5/04 ,  H02K7/14

CPC classification number: H02K9/22 ,  B64D27/357 ,  H02K5/04 ,  H02K7/14 ,  B64C29/0016

Abstract: An EDS includes a motor housing and an inverter housing. The inverter housing includes inverter fins. The motor housing includes motor fins and motor guide plates. The motor fins and the motor guide plates are provided on an outer peripheral surface. Each of the motor guide plates is aligned with the motor fins along the outer peripheral surface. The motor guide plate guides air sent by a blower fan in a circumferential direction to flow toward the motor fins and the inverter fins. The motor guide plate is bent in a convex shape to bulge toward an upstream side in an axial direction.

公开(公告)号：US20210016635A1

公开(公告)日：2021-01-21

申请号：US17065267

申请日：2020-10-07

Applicant: DENSO CORPORATION

Inventor： Jun YAMAOKA ,  Masaharu SAKAI ,  Yasuhiko NIIMI ,  Takahito NAKAMURA ,  Yusuke KOMATSUBARA ,  Marie NAGAHAMA ,  Yasuki OMORI ,  Shogo HAYAKAWA ,  Satoshi TAKOTANI ,  Yuuji OKAMURA ,  Tatsuya YOSHIDA

IPC: B60H1/34

Abstract: An air discharge device is configured to discharge an air flow. The air discharge device includes a main hole for discharging an air flow as a working air flow, an auxiliary hole provided around the main hole to discharge a support air flow, and a vortex suppression structure configured to suppress development of vortices generated in a velocity boundary layer of the working air flow at a downstream side of an outlet of the main hole. This vortex suppression structure is configured to make a central portion of the thickness of the velocity boundary layer of the working air flow at the downstream side of the outlet of the main hole to be closer to a mainstream of the support air flow, at the downstream side of the outlet of the main hole.

公开(公告)号：US20170175764A1

公开(公告)日：2017-06-22

申请号：US15371263

申请日：2016-12-07

Applicant: DENSO CORPORATION

Inventor： Hiroyuki USAMI ,  Masaharu SAKAI ,  Sho KOSAKA ,  Yohei KAMIYA

IPC: F04D29/42 ,  F04D29/053 ,  F04D29/28 ,  F04D17/16 ,  F04D13/06

CPC classification number: F04D29/4226 ,  F04D13/06 ,  F04D17/16 ,  F04D29/053 ,  F04D29/162 ,  F04D29/281

Abstract: A centrifugal blower includes a rotation shaft, an impeller, a casing. The impeller includes a plurality of blades and a side panel. The casing accommodates the impeller and includes an air intake portion positioned adjacent to the side panel. The air intake portion includes a downstream end portion and an inner wall surface. The side panel includes an upstream end portion and an inner panel surface that is an inner surface of the side panel. The downstream end portion and the upstream end portion face each other across a space in an angular range. A difference between a smallest inner radius of the inner wall surface of the air intake portion and a smallest inner radius of the inner panel surface is smaller than or equal to a thickness of the side panel in the angular range.