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91.发明授权公开(公告)号：US10305260B2
公开(公告)日：2019-05-28
申请号：US16033661
申请日：2018-07-12
摘要： Disclosed is a spark plug including: an insulator having an axial hole formed along an axis of the spark plug; a center electrode disposed in a front end side of the axial hole; and a metal shell fixed around an outer circumference of the insulator, with a front end portion of the insulator protruding frontward from a front end of the metal shell. The front end portion of the insulator consists only of a first section and a second section located adjacent to and frontward of the first section and having an inner diameter larger than that of the first section. The second section has a chamfered area formed on an inner circumferential surface thereof so as to continue to a front end of the insulator.
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公开(公告)号：US10302542B2
公开(公告)日：2019-05-28
申请号：US15598376
申请日：2017-05-18
发明人： Hidekazu Minami , Kaoru Hisada
IPC分类号： G01N15/00 , G01N15/06 , F02D41/20 , F02D41/22 , G01N27/70 , F01N13/00 , G01N1/22 , F02D41/14
摘要： In a particulate detection system (10), a control board (911), a high voltage generation board (913) and an isolation transformer (720) are respectively disposed in a first space (921d) and a second space (921e) separated from each other by an inner case (923). When electromagnetic noise is generated in the high voltage generation board (913) and the isolation transformer (720); specifically, at the primary winding of the isolation transformer 720, at the time of switching the primary current supply, the electromagnetic noise is blocked by the inner case (923). This configuration reduces the influence of electromagnetic noise generated in the primary winding on the control board (911).
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公开(公告)号：US10302507B2
公开(公告)日：2019-05-28
申请号：US15423818
申请日：2017-02-03
发明人： Naoto Noguchi , Kota Shinohara
IPC分类号： G01K7/22 , B23K26/22 , G01K1/08 , G01K7/16 , B23K101/38
摘要： A temperature sensor having a structure in which electrode wires are butted against signal wires with their weld portions and a method for manufacturing the temperature sensor. In a temperature sensor (1), outer circumferential portions (57a) and (57b) of each of weld portions (55) between electrode wires (25) and sheath core wires (3) are located outward of a first straight line D1 and a second straight line D2, respectively. A forward end-side length L1 is set to be longer than a rear end-side length L2. In addition, the sheath core wires (3) are larger in diameter than the electrode wires (25).
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公开(公告)号：US10297983B2
公开(公告)日：2019-05-21
申请号：US15926358
申请日：2018-03-20
发明人： Takuya Shimamura
IPC分类号： H01T21/02 , G05B19/4097 , H01T13/20 , H01T13/58
摘要： A spark plug has an electrode including a base portion and a tip joined to a specific surface that is a specific outer surface of the base portion, the tip forming a spark discharge surface. Respective relative positions of a plurality of points on an outer surface of a target portion of the electrode including the base portion and the tip joined to the base portion, which is a portion including at least a portion of the specific surface of the base portion and the tip, are identified to generate three-dimensional coordinate data representing the three-dimensional shape of the target portion. The coordinate data is analyzed to determine whether the target portion of the electrode includes a predetermined unintentional portion that is an unintended portion. An electrode including the unintentional portion is excluded from objects to be manufactured, and an electrode not including the unintentional portion is used to assemble the spark plug.
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公开(公告)号：US20190131775A1
公开(公告)日：2019-05-02
申请号：US16091144
申请日：2017-01-13
发明人： Yusuke KAWASHIMA , Hiroyuki HAZAMA
摘要： Disclosed is a spark plug having a ground electrode in which a weld zone is formed a tip and electrode base. The weld zone has: a back region exposed at an opposite surface of the electrode base; a joint region at which the tip is joined; and a connection region connects the joint region and the back region without being exposed at side surfaces of the electrode base. In a cross section of the ground electrode taken through the side surfaces of the electrode base along a plane passing through the centers of the top and bottom surfaces of the tip, a value of a width of the top surface of the tip being divided by a width of the facing surface of the electrode base is greater than 0.3, and a maximum width of the connection region is larger than a width of the back region.
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公开(公告)号：US20190128837A1
公开(公告)日：2019-05-02
申请号：US16165404
申请日：2018-10-19
发明人： Tomoki FUJII , Takehiro OBA
IPC分类号： G01N27/407
CPC分类号： G01N27/4077
摘要： In a circular cross section of a protector obtained by cutting the protector along a plane which is orthogonal to the axial direction and passes through gas introduction holes, one gas introduction hole and another gas introduction hole having an opening area different from that of the one gas introduction hole are arranged along an imaginary line passing through the center of the circular cross section such that the two gas introduction holes are located on opposite sides with respect to the center of the circular cross section.
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公开(公告)号：US20190126373A1
公开(公告)日：2019-05-02
申请号：US16302758
申请日：2017-07-14
摘要： A ceramic-metal structure in which a metallic body (2) is inserted into or disposed above a through hole (4h) of a ceramic substrate (4) and which includes an annular pad layer (6) disposed around the through hole; an annular ring member (8) joined to the pad layer via a first brazing filler portion (10) and having a coefficient of thermal expansion smaller than that of the metallic body; a second brazing filler portion (12) intervening between the ring member and metallic body; and brazing filler flow prevention layers (7a, 7b) covering an outer surface of the pad layer so as to expose a central region (6c) of the outer surface of the pad layer facing the first brazing filler portion. The first brazing filler portion joins the central region and the ring member without projecting to a radially inner or outer side of the flow prevention layers.
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公开(公告)号：US10261060B2
公开(公告)日：2019-04-16
申请号：US15168927
申请日：2016-05-31
发明人： Yuzo Higuchi
IPC分类号： G01N33/00 , G01N27/406 , G01N27/419
摘要： A sensor control apparatus controls a gas sensor including an electromotive force cell (a detection cell) and an oxygen pump cell. The sensor control apparatus includes an AD conversion section (31); a PID computation section (61); a first signal generation section (63) which generates a DAC control signal S1 (a pump current control signal) based on the results of PID performed by the PID computation section (61); a current DA conversion section (35); and a first signal generation section (63), a second signal generation section (65), and a signal output section (67) configured to selectively set a combination of the results of the computations performed by the PID computation section (61) and to generate a gas detection signal S2 based on the set combination of the computation results.
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公开(公告)号：US10253982B2
公开(公告)日：2019-04-09
申请号：US14579459
申请日：2014-12-22
发明人： Hiroyuki Suzuki , Hiroki Tsuchiya , Akimitsu Sassa
IPC分类号： F23Q7/00
摘要： A glow plug includes a housing having an axial hole extending in an axial line direction; a ceramic heater that is relatively displaceable with respect to the housing along the axial line direction and has at least outer surface made of ceramic; and a pressure sensor fixed to the housing and configured to output a signal based on the relative displacement of the ceramic heater. A fixed member fixed to the ceramic heater while the ceramic heater is arranged to an inner circumference of the fixed member. A welded member is welded to an outer circumference of the fixed member. An inner circumferential surface of a portion of the fixed member to which at least the welded member is welded is spaced apart from the outer surface of the ceramic heater.
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公开(公告)号：US10247698B2
公开(公告)日：2019-04-02
申请号：US14992577
申请日：2016-01-11
发明人： Ai Igarashi , Satoshi Okazaki
IPC分类号： G01N27/407 , G01N27/417 , B28B17/00 , B28B19/00
摘要： A gas sensor element that includes a composite ceramic layer including a plate-shaped insulating portion which contains an insulating ceramic and has a through-hole, and an electrolyte portion which contains a solid electrolyte ceramic, and a portion disposed in the through-hole where the electrolyte portion is thicker than the insulating portion. A first conductor layer is formed over a first insulating surface of the insulating portion and a first electrolyte surface of the electrolyte portion. The electrolyte portion has an extending portion which is overlaid on the first insulating surface and extends toward the outside of the through-hole. The thickness of the extending portion is decreased toward an outer periphery of the extending portion, and the outer periphery of the extending portion is continuously connected to the first insulating surface. A first extending surface of the extending portion continuously connects the first insulating surface and the first electrolyte surface.
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