公开(公告)号：US20190277229A1

公开(公告)日：2019-09-12

申请号：US16424567

申请日：2019-05-29

Applicant: DENSO CORPORATION

Inventor： Akitoshi MIZUTANI ,  Yasushi GOKA

IPC: F02M35/10 ,  G01F1/684 ,  G01N27/12

Abstract: A physical quantity measuring device is configured to measure a physical quantity of a fluid. The physical quantity measuring device includes: at least two humidity detection parts configured to output a humidity signal corresponding to a humidity of the fluid; and an abnormality determination part configured to determine that an abnormality has occurred in the humidity detection parts in response to that a difference between the humidity signals obtained from the two humidity detection parts exceeds an abnormality determination threshold.

公开(公告)号：US20220163360A1

公开(公告)日：2022-05-26

申请号：US17666155

申请日：2022-02-07

Applicant: DENSO CORPORATION

Inventor： Akiyuki SUDOU ,  Yasushi GOKA

IPC: G01F1/69 ,  G01F15/14

Abstract: A circuit board is located in a flow rate measurement passage of a housing. The flow rate measurement passage has: a first inner surface that is located at one side of the flow rate measurement passage where a primary lateral surface of the housing is placed; and a second inner surface that is located at another side of the flow rate measurement passage where a secondary lateral surface of the housing is placed. A flow rate sensing device is installed to one side of the circuit board where the first inner surface is placed. A distance, which is measured from the circuit board to the first inner surface in a plate thickness direction of the circuit board, is larger than a distance, which is measured from the circuit board to the second inner surface in the plate thickness direction of the circuit board.

公开(公告)号：US20150355009A1

公开(公告)日：2015-12-10

申请号：US14730525

申请日：2015-06-04

Applicant: DENSO CORPORATION

Inventor： Yasushi GOKA ,  Takashi Ooga ,  Akiyuki Sudou ,  Junzo Yamaguchi

IPC: G01F5/00

CPC classification number: G01F5/00 ,  G01F1/6842 ,  G01F15/00 ,  G01N27/223 ,  G01N33/00

Abstract: An airflow-rate detecting device capable of detecting humidity has a housing, a flow rate sensor, a humidity sensor, a humidity sensor case, and a dust separating portion. The housing therein defines a bypass passage into which a part of air flowing in a duct flows. The flow rate sensor is disposed in the bypass passage. The humidity sensor detects a humidity of air flowing in the duct at an outside of the housing. The humidity sensor case houses the humidity sensor and therein defines an interior space into which a part of air flowing in the duct flows as a target air of which humidity is detected by the humidity sensor. The dust separating portion removes dust from the target air before the target air flows into the interior space.

Abstract translation: 能够检测湿度的气流速度检测装置具有壳体，流量传感器，湿度传感器，湿度传感器壳体和灰尘分离部。 其中的壳体限定旁路通道，一个在管道中流动的空气的一部分流入该旁路。 流量传感器设置在旁路通路中。 湿度传感器检测在壳体外部在管道中流动的空气的湿度。 湿度传感器壳体容纳湿度传感器，并且其中限定了内部空间，一部分在管道中流动的空气作为湿度传感器检测到湿度的目标空气流动。 灰尘分离部在目标空气流入内部空间之前，从目标空气中除去灰尘。

公开(公告)号：US20220155122A1

公开(公告)日：2022-05-19

申请号：US17666059

申请日：2022-02-07

Applicant: DENSO CORPORATION

Inventor： Takashi OOGA ,  Yasushi GOKA

IPC: G01F1/69 ,  G01F15/14

Abstract: An air flow rate measurement device includes a housing, a flow rate sensing device and a physical quantity sensing device. The flow rate sensing device is located in a flow rate measurement passage of the housing and outputs a signal which corresponds to a flow rate of air flowing in the flow rate measurement passage. The physical quantity sensing device is located in a physical quantity measurement main passage of the housing that is communicated with a physical quantity measurement main passage inlet and a physical quantity measurement main passage outlet of the housing. The physical quantity sensing device outputs a signal which corresponds to a physical quantity of the air flowing in the physical quantity measurement main passage. The housing has the physical quantity measurement main passage outlet as one of a plurality of physical quantity measurement main passage outlets.

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

IPC: G01F1/688 ,  G01F1/696

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.