公开(公告)号：US20190310166A1

公开(公告)日：2019-10-10

申请号：US16362851

申请日：2019-03-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Keiichi NODO ,  Keiichi NODA ,  Ryuta FUKANO ,  Yasuhiro ISHIGURO ,  Shoji AKATSUKA

IPC: G01M15/10

Abstract: Disclosed is a sensor, including: a sensor body having a cylindrical case and a sensor element accommodated in the case; a seal member disposed in a rear end part of the case; lead wires electrically connected to the sensor element and extending from inside to outside of the casing through the seal member; and a cylindrical heat shield tube retained to an outer surface of the case and extending rearward from the case so as to circumferentially surround the seal member and parts of the lead wires, characterized in that: the sensor further includes a cylindrical tube cap made of an elastic material and arranged to restrict a rearward movement of the heat shield tube; the tube cap has formed therein at least one lead wire insertion hole through which the lead wires are inserted; and the tube cap is reduced in diameter and held to the lead wires.

公开(公告)号：US20200271040A1

公开(公告)日：2020-08-27

申请号：US16749598

申请日：2020-01-22

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kouji OGAWA ,  Ayaka OTA ,  Hideya INUKAI ,  Yasuhiro ISHIGURO

IPC: F01N11/00

Abstract: A sensor including a sensor element, a metallic shell, a terminal fitting, a cylindrical case, lead wires, a connector portion, and a cylindrical heat shield tube. The heat shield tube includes a first tube and a second tube. The second tube is disposed on a distal end side of the first tube and covers an outer surface of the rear end side of the case, while providing an overlapping portion that overlaps the first tube. A rear end side of the first tube is adjacent to the connector portion. A total length T of the heat shield tube and a length S of the overlapping portion satisfy T/10≤S ≤T/5. Further, a length L1 of the first tube and a length L2 of the second tube satisfy T/2≤L2

公开(公告)号：US20150293053A1

公开(公告)日：2015-10-15

申请号：US14397793

申请日：2013-03-28

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yu AKIYAMA ,  Yasuhiro ISHIGURO ,  Tomohisa TERUI ,  Kazuhisa FUJIBAYASHI

IPC: G01N27/419 ,  G01N27/41 ,  G01N27/406 ,  G01N27/409 ,  G05B15/02 ,  G05D7/06

CPC classification number: G01N27/419 ,  G01N27/4067 ,  G01N27/409 ,  G01N27/41 ,  G05B15/02 ,  G05D7/0617

Abstract: A gas sensor control apparatus (3) includes first current detection means for detecting a first pump current flowing between second electrodes (19, 20) in a state in which an object gas has become a prescribed gas supply state, the temperature of a sensor section (10f) has become a first target temperature, and the voltage between first electrodes (21, 22) has become a first target voltage; second current detection means for detecting a second pump current flowing between the second electrodes in a state in which the object gas has become the prescribed gas supply state, the temperature of the sensor section has become a second target temperature, and the voltage between the first electrodes has become a second target voltage; and H2O gas concentration detection means for detecting the H2O gas concentration of the object gas on the basis of the first and second pump currents.

Abstract translation: 气体传感器控制装置（3）包括第一电流检测装置，用于检测在目标气体已经变成规定的气体供应状态的状态下在第二电极（19,20）之间流动的第一泵浦电流，传感器部分 （10f）已经成为第一目标温度，并且第一电极（21,22）之间的电压已经成为第一目标电压; 第二电流检测装置，用于在目标气体已经变成规定的气体供应状态的状态下检测在第二电极之间流动的第二泵电流，传感器部分的温度已经成为第二目标温度，第一电流检测装置 电极已经成为第二个目标电压; 以及用于基于第一和第二泵浦电流检测对象气体的H 2 O气体浓度的H 2 O气体浓度检测装置。