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公开(公告)号：US20180120248A1
公开(公告)日：2018-05-03
申请号：US15715566
申请日：2017-09-26
Applicant: DENSO CORPORATION
Inventor： Hiroyuki AKUZAWA , Takashi ENOMOTO , Junzo YAMAGUCHI , Takuma TSUCHIYA
IPC: G01N27/22
CPC classification number: G01N27/223 , G01N33/0011 , G01N33/0036
Abstract: A sensor body has a body recess portion, in which a sensor element is housed and the body recess portion opens at a body opening portion. A sensor cover has a cover window which communicates between the intake passage and the body opening portion, and the sensor cover covers the sensor body. A sensor filter is provided with a sensor peripheral portion which extends along a virtual surface. In a projection view with respect to the virtual plane the body opening portion and the cover window are positioned within a filtering area which is defined as an inner side of a contour of the filter peripheral portion, such that the filter peripheral portion contacts the sensor body and the sensor cover.
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Patent Agency Ranking
公开(公告)号：US20210341324A1
公开(公告)日：2021-11-04
申请号：US17374202
申请日：2021-07-13
Applicant: DENSO CORPORATION
Inventor： Takuma TSUCHIYA , Akiyuki SUDOU
Abstract: A housing has a front surface, a rear surface, and side surface connecting the front surface with the rear surface. The housing is formed by injection molding. A first sub-passage is formed in the housing and communicates a first sub-passage inlet formed in the front surface with a first sub-passage outlet formed in the rear surface. A second sub-passage is formed in the housing and communicates a second sub-passage inlet formed in a midway portion of the first sub-passage with a second sub-passage outlet at a position different from the first sub-passage outlet. A flow rate detection unit is provided in the second sub-passage. A mold parting mark is formed in the rear surface of the housing at a position away from an inner opening edge of the first sub-passage outlet.
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公开(公告)号：US20210190555A1
公开(公告)日：2021-06-24
申请号：US17191251
申请日：2021-03-03
Applicant: DENSO CORPORATION
Inventor： Takuma TSUCHIYA , Junzo YAMAGUCHI , Takashi ENOMOTO , Hiroyuki AKUZAWA
Abstract: A sensor body contains a sensor element in a body recess opened at a body opening. A sensor substrate has a mounting surface on which a circuit element for processing a detection signal is mounted and holds the sensor body on the mounting surface. A sensor cover has a cover window penetrating between an intake passage and the body opening and covers the sensor body. A sensor filter is interposed between the sensor body and the sensor cover. A potting resin body is cured on the mounting surface so as to seal the circuit element. The sensor cover is embedded in the potting resin body on the outer peripheral side of the sensor body.
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公开(公告)号：US20210063217A1
公开(公告)日：2021-03-04
申请号：US17005364
申请日：2020-08-28
Applicant: DENSO CORPORATION
Inventor： Takuma TSUCHIYA , Kengo ITOU , Noboru KITAHARA , Yasushi GOKA
Abstract: A physical quantity sensing device is installed to a circuit board and is configured to output a signal, which corresponds to a physical quantity of air flowing through a physical quantity measurement passage. A physical quantity measurement passage inlet, which is communicated with the physical quantity measurement passage, includes a first inner surface and a second inner surface. A second distance, which is measured from the physical quantity sensing device to the second inner surface in a plate thickness direction of the circuit board, is larger than a first distance, which is measured from the circuit board to the first inner surface in the plate thickness direction of the circuit board.
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公开(公告)号：US20190170551A1
公开(公告)日：2019-06-06
申请号：US16267421
申请日：2019-02-05
Applicant: DENSO CORPORATION
Inventor： Takuma TSUCHIYA , Junzo YAMAGUCHI , Takashi ENOMOTO , Hiroyuki AKUZAWA
Abstract: A sensor body contains a sensor element in a body recess opened at a body opening. A sensor substrate has a mounting surface on which a circuit element for processing a detection signal is mounted and holds the sensor body on the mounting surface. A sensor cover has a cover window penetrating between an intake passage and the body opening and covers the sensor body. A sensor filter is interposed between the sensor body and the sensor cover. A potting resin body is cured on the mounting surface so as to seal the circuit element. The sensor cover is embedded in the potting resin body on the outer peripheral side of the sensor body.
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公开(公告)号：US20170074703A1
公开(公告)日：2017-03-16
申请号：US15254202
申请日：2016-09-01
Applicant: DENSO CORPORATION
Inventor： Takuma TSUCHIYA
CPC classification number: G01F5/00 , G01F1/6842 , G01F1/72
Abstract: The cross-sectional area of a reduced passage increases at a constant ratio from a maximum reduction part where a cross-sectional area of the reduced passage becomes the smallest toward a downstream side. The cross-sectional area of the reduced passage is equal to the cross-sectional area of a bypass passage at a downstream end of a cross-sectional area increasing region intersecting with a wall surface of the bypass passage. (Cross-sectional area increase ratio)=(B−A)/X is satisfied. A [mm2] is the cross-sectional area of the reduced passage at an upstream end of the increasing region. B [mm2] is the cross-sectional area of the reduced passage at the downstream end of the increasing region. X [mm] is a distance from the upstream end to the downstream end of the increasing region along an air flow direction through the reduced passage. The ratio is 1.5 [mm2/mm] or smaller.
Abstract translation: 减少通道的横截面面积与减压通道的横截面面积朝向下游侧最小的最大减少部分以恒定的比例增加。 减小的通道的横截面积等于在与旁路通道的壁表面相交的横截面积增加区域的下游端的旁路通道的横截面面积。 （横截面积增加率）=（B-A）/ X。 A [mm2]是在增加区域的上游端的减少通道的横截面面积。 B [mm2]是增加区域下游端的减少通道的横截面积。 X [mm]是沿着通过减小通道的空气流动方向从增加区域的上游端到下游端的距离。 该比率为1.5 [mm 2 / mm]以下。
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