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1.发明申请公开(公告)号：US20190277820A1
公开(公告)日：2019-09-12
申请号：US16424618
申请日：2019-05-29
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Teruaki KAIFU
Abstract: A humidity measurement device is configured to measure a humidity of a gas. The humidity measurement device includes: a second-order calculation part to calculate a second-order differential value by performing second-order differentiation by time on a humidity signal output from a humidity detection part; and an adherence determination part to determine whether a liquid has adhered to the humidity detection part based on the second-order differential value obtained by the second-order calculation part.
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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：US20170067768A1
公开(公告)日：2017-03-09
申请号：US15233128
申请日：2016-08-10
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Hironao YAMAGUCHI
CPC classification number: G01F1/69 , B29C45/14336 , B29C45/14639 , B29C45/1671 , B29K2105/0067 , B29K2627/18 , B29L2031/752 , F02M35/10386 , G01F1/56
Abstract: The present disclosure provides a flow rate measuring device including a first chip, a second chip, and a holding body. The first chip and the second chip are disposed in an intake passage of an internal combustion engine. The first and second chips detect at least one of a flow rate of an intake air and a parameter other than the flow rate. The holding body holds the second chip and protrudes into an inside of the intake passage. The second chip is exposed inside of the intake passage in a state where the second chip is covered by a filter. The holding body includes a resin portion that forms a surface of the holding body. The portion of the filter is inserted into the resin portion. The recessed portion is recessed from a surface of the resin portion. A portion of a first surface of the filter defines a bottom of the recessed portion. The second chip is positioned on a side of a second surface of the filter that is opposite to the first surface.
Abstract translation: 本发明提供一种包括第一芯片，第二芯片和保持体的流量测量装置。 第一芯片和第二芯片设置在内燃机的进气通道中。 第一和第二芯片检测进气的流量和流量以外的参数中的至少一个。 保持体保持第二芯片并突出到进气通道的内部。 第二芯片在第二芯片被过滤器覆盖的状态下暴露在进气通道内部。 保持体包括形成保持体的表面的树脂部。 过滤器的部分插入树脂部分。 凹部从树脂部的表面凹陷。 过滤器的第一表面的一部分限定凹部的底部。 第二芯片位于与第一表面相对的过滤器的第二表面的一侧。
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公开(公告)号：US20200319003A1
公开(公告)日：2020-10-08
申请号：US16910585
申请日：2020-06-24
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Noboru KITAHARA , Hiroshi TAGAWA , Masaki INOUE , Kengo ITO , Teruaki KAIFU
IPC: G01F1/684
Abstract: A physical quantity measurement device includes a measurement channel through which the fluid flows to be measured, a physical quantity detector that detects a physical quantity of a fluid in the measurement channel, a housing forming the measurement channel, and a measurement outlet provided in the housing as a downstream end of the measurement channel. An outer peripheral surface of the housing includes an outer peripheral flat surface that extends in an arrangement direction along which an upstream end and a downstream end of the housing are arranged, and an outer peripheral inclined surface inclined with respect to the outer peripheral flat surface and provided between the upstream end and the outer peripheral flat surface in the arrangement direction. The measurement outlet is positioned upstream of the downstream end of the housing.
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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：US20150355005A1
公开(公告)日：2015-12-10
申请号：US14728469
申请日：2015-06-02
Applicant: DENSO CORPORATION
Inventor： Yasushi KOHNO , Junzo YAMAGUCHI
CPC classification number: G01F25/0007 , F02D41/18 , F02D41/187 , F02D2200/0414 , G01F1/6842 , G01F1/6845 , G01F1/692 , G01F1/696 , G01F1/699 , G01F5/00 , G01F15/046
Abstract: A high-temperature resistance is disposed in an internal passage and has its energization controlled based on an intake-air flow rate in the passage to increase/decrease a heat generation amount. A first low-temperature resistance constitutes a bridge circuit which has its energization state changed according to the heat generation amount of the high-temperature resistance. The first low-temperature resistance varies its resistance value according to intake-air temperature. A second low-temperature resistance is an element, which is not incorporated into the bridge circuit and varies its resistance value according to intake-air temperature to increase/decrease an energization amount. The second low-temperature resistance is provided on a substrate. Another bridge circuit produces an intake air amount detection signal using an electrical signal generated by operation of the high-temperature resistance and the first low-temperature resistance. A digital circuit uses an electrical signal produced by the second low-temperature resistance as an intake temperature detection signal.
Abstract translation: 高温电阻设置在内部通路中，并且基于通道中的进气流量来控制其通电以增加/减少发热量。 第一低温电阻构成其通电状态根据高温电阻的发热量而变化的桥式电路。 第一个低温电阻根据进气温度改变其电阻值。 第二低温电阻是不是并入到桥式电路中并且根据进气温度改变其电阻值以增加/减少通电量的元件。 第二低温电阻设置在基板上。 另一个桥接电路使用通过高温电阻和第一低温电阻的操作产生的电信号产生进气量检测信号。 数字电路使用由第二低温电阻产生的电信号作为进气温度检测信号。
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公开(公告)号：US20210262844A1
公开(公告)日：2021-08-26
申请号：US17317072
申请日：2021-05-11
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI
IPC: G01F1/692
Abstract: A sensor SA has a flow sensor that measures a flow rate of intake air in a measurement flow path. The flow sensor has a film-shaped sensor film portion overlapped on a substrate front surface of a sensor substrate. The sensor film portion has a heat generating resistor that heats the sensor film portion and a temperature measuring resistor that measures a temperature of the sensor film portion. The heat generating resistor and the temperature measuring resistor are arranged in a depth direction Z along the substrate front surface of the sensor substrate. A length dimension LM1 of an upstream temperature measuring resistor is equal to or larger than a length dimension LM2 of a downstream temperature measuring resistor.
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公开(公告)号：US20200340839A1
公开(公告)日：2020-10-29
申请号：US16926838
申请日：2020-07-13
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Noboru KlTAHARA
Abstract: A processing unit processes a signal output from a sensor unit that outputs a signal corresponding to an intake air amount that is an amount of intake air flowing through an intake flow path of an internal combustion engine. The processing unit has an advance processing section and a smoothing processing section. The advance processing section performs an advance process on the signal output from the sensor unit to compensate for a response delay. The smoothing processing section performs a smoothing process on the signal processed by the advance processing section.
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公开(公告)号：US20180274964A1
公开(公告)日：2018-09-27
申请号：US15763247
申请日：2016-09-09
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Hironao YAMAGUCHI
IPC: G01F15/14
CPC classification number: G01F15/14 , G01F1/684 , G01F5/00 , G01F15/043 , G01N27/223
Abstract: The physical quantity sensor subassembly has a preformed part, a wiring member, and an outer resin portion. The preformed part includes a physical quantity sensing element configured to detect a physical quantity other than a flow rate of the gas to be measured, a wiring terminal electrically connected to the physical quantity sensing element, a concave portion in which the gas to be measured is introduced, and an inner resin portion is molded around the physical quantity sensing element and the wiring terminal to be integral with the physical quantity sensing element and the wiring terminal. A sensing surface is exposed at the concave portion. The wiring member is electrically connected to the wiring terminal of the preformed part. An outer resin portion includes an opening hole portion communicating with the concave portion, and is molded around the preformed part, the wiring member, and an electrically connected portion between the preformed part and the wiring member.
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公开(公告)号：US20210164820A1
公开(公告)日：2021-06-03
申请号：US17150326
申请日：2021-01-15
Applicant: DENSO CORPORATION
Inventor： Hajime MASHITA , Junzo YAMAGUCHI , Shinichi KAMIYA , Akihumi KURITA
Abstract: A flowmeter is configured to measure a flow rate of a gas flowing through a main passage. The flowmeter includes a housing and a flow rate detector. The housing is made of a resin and includes a bypass passage branched off from the main passage. The flow rate detector is disposed in the bypass passage and transmits detection signals in accordance with the flow rate of the gas flowing through the main passage. The housing includes a non-insulation portion including graphite.
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