公开(公告)号：US11002581B2

公开(公告)日：2021-05-11

申请号：US16556325

申请日：2019-08-30

Applicant: DENSO CORPORATION

Inventor： Hidehito Tsujii ,  Shinichi Kamiya ,  Keisuke Itakura

IPC: G01F1/68 ,  G01F1/684 ,  G01F1/692 ,  G01F1/40

Abstract: A physical quantity measurement device for measuring a physical quantity of a fluid includes a housing that includes a bypass flow channel through which a fluid flows and a physical quantity detection unit that detects a physical quantity of the fluid in the bypass flow channel. The housing includes a housing main body made of a dielectric and a covering film that covers at least a part of a surface of the housing main body, and the surface of the housing is positive charged due to positive charges being arranged in the housing main body along the surface of the housing main body or the positive charges being arranged in the covering film along a surface of the covering film.

公开(公告)号：US11243106B2

公开(公告)日：2022-02-08

申请号：US17072500

申请日：2020-10-16

Applicant: DENSO CORPORATION

Inventor： Shinichi Kamiya

IPC: G01F1/684 ,  G01F15/14

Abstract: A physical quantity measurement device that measures a physical quantity of a fluid includes a bypass flow channel through which a fluid flows, a physical quantity detection unit for detecting a physical quantity of the fluid in the bypass flow channel, a detection unit having a detection terminal electrically connected to the physical quantity detection unit, a housing having a flow channel forming portion having an insulating property and forming a bypass flow channel and a terminal accommodating portion having an insulating property and accommodating a detection terminal, and a ground portion connecting the flow channel forming portion to a ground. A volume resistivity of the flow channel forming portion is included in the range of 1.0×1011 (1.0×10 to the 11th power) Ωcm to 1.0×1014 (1.0×10 to the 14th power) Ωcm.

公开(公告)号：US09983038B2

公开(公告)日：2018-05-29

申请号：US14479635

申请日：2014-09-08

Applicant: DENSO CORPORATION

Inventor： Shinichi Kamiya

IPC: G01F1/68 ,  G01F1/684 ,  G01F15/02 ,  G01F15/04 ,  F02D41/18 ,  G01F5/00 ,  G01K13/02

CPC classification number: G01F1/684 ,  F02D41/18 ,  F02D2200/0414 ,  F02D2200/0418 ,  G01F1/6842 ,  G01F5/00 ,  G01F15/04 ,  G01K13/02 ,  G01K2013/024 ,  G01K2205/02

Abstract: A housing defines a bypass passage and a sub-bypass passage. The bypass passage draws a part of air flowing through an interior of a duct. The sub-bypass passage is branched from the bypass passage to draw a part of air flowing through the bypass passage. A flow sensor is equipped in the sub-bypass passage to cause heat transfer with air, which passes through the sub-bypass passage, and to generate an electric signal according to a flow quantity of air in the duct. An intake-air temperature sensor is configured to measure a temperature in the duct. A moisture sensor is configured to measure a humidity in the duct. The flow sensor and the multiple sensors are equipped in the sub-bypass passage and are located along a direction of flow of air in the sub-bypass passage.

公开(公告)号：US09212637B2

公开(公告)日：2015-12-15

申请号：US14074989

申请日：2013-11-08

Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Ryusuke Kimura ,  Chihori Matsutani ,  Shinichi Kamiya

IPC: G01F1/68 ,  F02M35/10 ,  F02M35/02

CPC classification number: F02M35/10386 ,  F02M35/021 ,  F02M35/10019 ,  F02M35/10124 ,  F02M35/10144

Abstract: An intake pipe structure for an internal combustion engine is provided. The intake pipe structure includes an air flow meter arranged in an intake pipe and a pair of flow regulating plates. The air flow meter has an entrance and exits. The flow regulating plates are located at positions separated from the air flow meter and extend in a direction of flow of intake air to cover the exits of the air flow meter from opposite sides.

Abstract translation: 提供一种用于内燃机的进气管结构。 进气管结构包括布置在进气管和一对流量调节板中的空气流量计。 空气流量计有入口和出口。 流量调节板位于与空气流量计分离的位置处，并且在进气的流动方向上延伸以从相对侧覆盖空气流量计的出口。

公开(公告)号：US11656111B2

公开(公告)日：2023-05-23

申请号：US17150326

申请日：2021-01-15

Applicant: DENSO CORPORATION

Inventor： Hajime Mashita ,  Junzo Yamaguchi ,  Shinichi Kamiya ,  Akihumi Kurita

IPC: G01F5/00 ,  G01F1/684 ,  F02D41/18 ,  G01F15/14

CPC classification number: G01F1/6847 ,  F02D41/18 ,  G01F15/14

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.

公开(公告)号：US11493005B2

公开(公告)日：2022-11-08

申请号：US16355905

申请日：2019-03-18

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shinichi Kamiya ,  Shunsuke Rikitake

IPC: B01D35/02 ,  B01D29/60 ,  F02M35/02 ,  F02M35/10 ,  F02M35/024 ,  B01D35/30 ,  B01D35/14 ,  G01F1/692 ,  B01D35/06

Abstract: An intake device includes an air filter that filters intake air for an internal combustion engine, a filter casing housing the air filter, and an air physical quantity sensor. The filter casing includes an intake passage to allow the intake air to pass from upstream to downstream of the air filter. The filter casing has a passage wall portion that is electrically conductive and exposed to the intake passage on a downstream side of the air filter. The air physical quantity sensor has: a sensor element that detects a specific physical quantity related to the intake air on a downstream side of the air filter; and a grounding structure electrically connected to the passage wall portion for grounding the sensor element.

公开(公告)号：US10466084B2

公开(公告)日：2019-11-05

申请号：US15964801

申请日：2018-04-27

Applicant: DENSO CORPORATION

Inventor： Shinichi Kamiya

IPC: G01F15/04 ,  G01F25/00 ,  G01F1/684 ,  F02D41/18 ,  G01F5/00 ,  G01K13/02

Abstract: A housing defines a bypass passage and a sub-bypass passage therein. A bypass passage is configured to draw a part of an air flowing through a duct. The sub-bypass passage branches off the bypass passage and is configured to draw a part of air flowing through the bypass passage. A flow rate sensor is arranged in the sub-bypass passage and configured to generate an electric signal according to a flow rate of air in the duct by performing heat transfer with air passing through the sub-bypass passage. A physical quantity sensor is configured to measure a physical quantity of air in the duct. A sensor assembly is integrally formed with the flow rate sensor, the physical quantity sensor, and a circuit module. The circuit module includes a substrate that is configured to process signals from the flow rate sensor and the physical quantity sensor.