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公开(公告)号：US20210239128A1
公开(公告)日：2021-08-05
申请号：US17238679
申请日：2021-04-23
Applicant: DENSO CORPORATION
Inventor： Sho KOSAKA , Shuzo ODA , Masanori YASUDA
IPC: F04D29/42
Abstract: In a cross section of a flow passage formed to conduct a flow of air from an inside/outside air box to an upper air passage of a scroll casing while the cross section of the flow passage is taken along an imaginary plane which includes an outer edge of an air guide plate and is parallel to a rotational axis of an impeller, a passage section, which is located on one radial side of a separation tube where a nose of the scroll casing is placed, is defined as a first opening section, and another passage section, which is located on an opposite radial side of the separation tube, which is opposite to the nose, is defined as a second opening section. A passage cross-sectional area of the second opening section is larger than a passage cross-sectional area of the first opening section.
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公开(公告)号：US20190093665A1
公开(公告)日：2019-03-28
申请号：US16078509
申请日：2017-02-09
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
Abstract: A centrifugal blower includes: a centrifugal fan, which includes a shroud ring; and a case. The case includes a cover portion that covers a surface of the shroud ring located on one side in an axial direction. The cover portion includes a recess formed in a cover opposing surface, which is opposed to the shroud ring, and the recess is shaped in a form of a circle. The shroud ring includes at least one projection that is formed in a ring opposing surface, which is opposed to the cover portion. A gap is formed between the cover portion and the shroud ring. A shortest distance between a radially inner end part of the shroud ring and the cover portion is set to be larger than a shortest distance between a surface of the projection and a surface of the recess.
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公开(公告)号：US20190390676A1
公开(公告)日：2019-12-26
申请号：US16562156
申请日：2019-09-05
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
Abstract: A centrifugal blower device has a turbo fan unit and a casing. The casing includes a first casing member and a second casing member. One of the first casing member and the second casing member includes a first step portion having a first surface, a second step portion having a second surface, and a third step portion having a third surface. Each of the first surface, the second surface and the third surface forms a part of an outer surface of the one of the casing members and has a position different from one another in an axial direction. The second surface is located at a position closer than the first surface to the other one of the first casing member and the second casing member. The third surface is located at a position closer than the second surface to the other one of the casing members.
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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
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 。
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公开(公告)号：US20180149158A1
公开(公告)日：2018-05-31
申请号：US15572185
申请日：2016-04-26
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
CPC classification number: F04D17/16 , F04D25/08 , F04D29/281 , F04D29/30 , F04D29/4226 , F04D29/441
Abstract: The inside of a blower casing of a centrifugal blower includes a discharge airflow path, which extends outward in a radial direction of a rotating shaft, on an airflow downstream side from a trailing edge of each of blades of a centrifugal fan. The discharge airflow path includes an adjacent airflow path adjacent to the trailing edge of each blade. When the length in the axial direction of the blade at the trailing edge is assumed to be blade height, and when the length in the axial direction at the trailing edge of the centrifugal fan is assumed to be fan height, the length in the axial direction of the adjacent airflow path is equal to or larger than the blade height and equal to or smaller than the fan height.
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Patent Agency Ranking
公开(公告)号：US20180020838A1
公开(公告)日：2018-01-25
申请号：US15547586
申请日：2016-01-07
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Masanori YASUDA , Shuzo ODA
CPC classification number: A47C7/744 , B60H1/12 , B60H1/3211 , B60N2/565 , B60N2/5657 , B60N2/5692 , B60N2/90 , F04D25/0613 , F04D29/162 , F04D29/167 , F04D29/281 , F04D29/4213 , F04D29/444
Abstract: An air passage forming member includes an air passage inner wall surface that forms a wall surface of a connecting air passage connected to a cushion air passage. A blower device case has an air intake opening that is connected to the connecting air passage. A centrifugal fan is received in the inside of the blower device case. The air passage forming member is arranged such that at a downstream end of the connecting air passage, the air, which flows along the air passage inner wall surface in the connecting air passage, forms an air flow, which is directed in an axial direction of a fan central axis, or an air flow, which is directed toward an outer side in a radial direction of the fan central axis in comparison to the air flow that is directed in the axial direction.
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公开(公告)号：US20210336507A1
公开(公告)日：2021-10-28
申请号：US16324135
申请日：2017-07-13
Applicant: DENSO CORPORATION
Inventor： Masao TOKUNAGA , Masanori YASUDA , Koji ITO
IPC: H02K7/09 , H02K11/215 , F16C32/04
Abstract: An electric motor system includes a rotary shaft having an axis line displaceable relative to a rotation center, a magnetic bearing for supporting the rotary shaft, a permanent magnet mounted on the rotary shaft and having a plurality of magnetic poles arranged in a circumferential direction around the axis line of the rotary shaft, three detection elements arranged in the circumferential direction around the rotation center for detecting a magnetic flux generated from the permanent magnet, and a coordinate detection section for determining coordinates of the axis line of the rotary shaft based on output values of two detection elements selected out of the three detection elements in accordance with a rotation angle of the rotary shaft.
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公开(公告)号：US20210239126A1
公开(公告)日：2021-08-05
申请号：US17234865
申请日：2021-04-20
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
Abstract: A centrifugal blower includes an outer rotor, and a turbo fan. The turbo fan includes blades, an other end plate, and a cylinder portion. The cylinder portion is located inside the other end plate, and is fixed to the outer rotor. A surface of the outer rotor configures a rotor guide surface that guides an air flow toward a channel provided between adjacent blades. Each blade has a leading edge side portion located radially inside the cylinder portion. An outer end portion of the rotor guide surface in the radial direction is located at the same position in the axial direction as a one side cylinder end portion of the cylinder portion in the axial direction, in a state where a rotor contact portion of the outer rotor and a blade contact portion of the leading edge side portion are in contact with each other.
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公开(公告)号：US20190309767A1
公开(公告)日：2019-10-10
申请号：US16361315
申请日：2019-03-22
Applicant: DENSO CORPORATION
Inventor： Masanori YASUDA , Shouichi IMAHIGASHI
Abstract: A bladed wheel of a blower device has a main plate, a side plate and multiple fan blades between the main plate and the side plate. A fan casing of the blower device has a bell mouth portion and a guide wall portion, which extends in a radial-outward direction from an axial rear-side end of the bell mouth portion to an outer periphery of the side plate. An air reflecting space is formed in the fan casing at a radial-outside position of the guide wall portion and at an axial front-side position of the fan casing between an axial rear-side end of the guide wall portion and an axial front-end wall portion of the fan casing. Air blown out from the bladed wheel flows through an air blow-out passage, wherein sound wave of the air from the bladed wheel and sound wave of the air from the air reflecting space interfere with each other so that noise is decreased.
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公开(公告)号：US20190242396A1
公开(公告)日：2019-08-08
申请号：US16320472
申请日：2017-06-08
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
CPC classification number: F04D29/281 , F04D17/08 , F04D29/28 , F04D29/30 , F04D29/66 , F04D29/666
Abstract: A centrifugal blower includes an outer rotor, and a turbo fan. The turbo fan includes blades, an other end plate, and a cylinder portion. The cylinder portion is located inside the other end plate, and is fixed to the outer rotor. A surface of the outer rotor configures a rotor guide surface that guides an air flow toward a channel provided between adjacent blades. Each blade has a leading edge side portion located radially inside the cylinder portion. An outer end portion of the rotor guide surface in the radial direction is located at the same position in the axial direction as a one side cylinder end portion of the cylinder portion in the axial direction, in a state where a rotor contact portion of the outer rotor and a blade contact portion of the leading edge side portion are in contact with each other.
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