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41. 发明授权

EP2679904B1 GLOW PLUG WITH COMBUSTION PRESSURE SENSOR 失效
公开(公告)号：EP2679904B1
公开(公告)日：2018-07-25
申请号：EP12749015.9
申请日：2012-02-21
申请人： NGK Spark Plug Co., Ltd.
发明人： NAKAMURA Yoshihiro , MAEDA Shunsuke , MATSUI Masayoshi
IPC分类号： F23Q7/00
CPC分类号： G01M15/08 , F23Q7/001 , F23Q2007/005
摘要： [Objective] To provide a glow plug having a combustion pressure sensor whose accuracy in sensing combustion pressure is improved through mitigation of an action that a tubular seal member (holding member) disposed between the outer circumferential surface of a heater and the inner circumferential surface of a portion of a housing located toward the forward end of the housing presses the heater forward as a result of its instantaneous thermal expansion which arises instantaneously, since it is thin-walled and thus instantaneously assumes high temperature. [Means for Solution] A seal member 60 has a dual-tube structure consisting of an outer tubular seal member 160a and an inner tubular seal member 160b; the outer tubular seal member 160a is welded, at its rear end portion, to the inner circumferential surface of a forward-end housing 131, thereby forming a housing-side joint W2; the inner tubular seal member 160b is welded, at its forward end portion, to a forward end portion of the outer tubular seal member 160a, thereby forming an inter-tubular-seal-member joint W3; and the inner tubular seal member 160b is welded, at its portion located rearward of the joint W3, to the outer circumferential surface of the heater 10, thereby forming a heater-side joint W1. An action of pressing the heater forward is effected on the basis of an axial dimension L1 between the joints W2 and W1 shorter than an axial dimension between the joints W2 and W3 and is, therefore, mitigated.

42. 发明授权

EP2623866B1 HEATER AND GLOW PLUG PROVIDED WITH SAME 有权转让
公开(公告)号：EP2623866B1
公开(公告)日：2018-06-13
申请号：EP11828503.0
申请日：2011-03-23
申请人： Kyocera Corporation
发明人： TAIMURA, Kotaro
IPC分类号： F23Q7/00 , H05B3/48
CPC分类号： H05B3/02 , F23Q7/001 , H05B3/48 , H05B2203/027
摘要： [Problem] There are provided a heater having high reliability and high durability in which generation of microcracks due to stress concentration derived from local expansion of a bent portion of a lead is suppressed even when a large electric current flows into the bent portion at the time of sharply elevating a temperature of the heater, and a glow plug provided with the heater. [Solution] A heater (1) of the invention includes an insulating base body (2); a resistor (3) embedded in the insulating base body (2); and a lead (4) embedded in the insulating base body (2) and including one end connected to the resistor (3), and a terminal portion (41) at another end thereof which is exposed from a surface of the insulating base body (2). The lead (4) further includes a bent portion (A) bent toward the terminal portion (41), and an aspect ratio in at least one cross section of the bent portion (A) is larger than an aspect ratio in another cross section of the bent portion (A), the another cross section being positioned closer to the terminal portion (41) than the at least one cross section of the bent portion (A).

43. 发明授权

EP3208539B1 GLOW PLUG 失效
公开(公告)号：EP3208539B1
公开(公告)日：2018-05-16
申请号：EP17153358.1
申请日：2017-01-26
申请人： NGK Spark Plug Co., Ltd.
发明人： SUGIYAMA, Yumi , OKADA, Hirofumi
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001
摘要： [Objective] To provide a glow plug capable of facilitating transfer of heat from a heating element to a tube. [Means for Solution] A heating element is electrically connected to a front end of a metal center rod, and a metal tube having a closed front end houses the heating element and a front side of the center rod. The heating element is electrically connected to the tube. Insulating powder is filled in the tube. In a volume-based particle size distribution measured by a laser diffraction method, a particle group in the insulating powder, which is disposed at a position corresponding to the heating element, has at least one maximum value of frequency of 6% or greater in a range of particle sizes of 12 µm or greater, and the particle group has only frequencies of 2.5 to 6% in a range of particle sizes of 4 to 8 µm.

44. 发明授权

EP3064835B1 GLOW PLUG INCLUDING A LOAD SENSOR AND A WELDED FLEXIBLE DISTAL MEMBRANE HAVING A TRANSVERSAL FLEXIBLE COLLAR 无效
公开(公告)号：EP3064835B1
公开(公告)日：2018-04-25
申请号：EP15157632
申请日：2015-03-04
申请人： SIEVA D O O PE SPODNJA IDRIJA
发明人： RAMOND ALAIN , RATOSA GVERINO
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001 , F23Q2007/002
摘要： The invention relates to a glow plug comprising a heating rod (11), a plug body (13) having a receiving housing (14) for the heating rod, a distal flexible membrane between the heating rod and the plug body, and a load sensor (17). The flexible membrane comprises a flexible collar (26) which extends radially orthogonally relative to the heating rod. A radial extremity portion (58) of said flexible membrane is welded to a fixing ring (15) for fixing to the plug body.

45. 发明授权

EP2257119B1 CERAMIC HEATER AND GLOW PLUG 有权转让
公开(公告)号：EP2257119B1
公开(公告)日：2018-04-04
申请号：EP09713465.4
申请日：2009-02-19
申请人： NGK SPARK PLUG CO., LTD.
发明人： SEKIGUCHI, Yutaka , IKAI, Yoshihito , MITSUOKA, Takeshi
IPC分类号： H05B3/10 , F23Q7/00 , H05B3/48
CPC分类号： F23Q7/001 , H05B3/141
摘要： [Objective] To provide a ceramic heater which has excellent quick heating performance, can reduce power consumption, and is excellent in durability, and a glow plug which can realize quick heating performance, low power consumption, and durability in the case of quick temperature rising, all being realized at high levels. [Means for Solution] A ceramic heater 12 includes a substrate 60 and a resistor element 30 buried in the substrate 60. The resistor element 30 includes a heat-generating portion 33 formed of an electrically conductive ceramic and folded into a U-like shape, lead portions 31 joined to end portions of the heat-generating portion 33, and intermediate portions 40 located between the heat-generating portion 33 and the lead portions 31. The intermediate portions 40 are formed such that, when cross sections at arbitrary two points P 1 and P 2 along the axis XA direction are compared, both the diameter CL of an imaginary circumscribed circle CG containing cross sections of the resistor element 30 and the total cross sectional area HS of the cross sections become small in the front end side cross section as compared with those in the rear end side cross section.

46. 发明公开

EP3299719A1 GLOW PLUG 有权转让
标题翻译：发光插头
公开(公告)号：EP3299719A1
公开(公告)日：2018-03-28
申请号：EP17191171.2
申请日：2017-09-14
申请人： NGK Spark Plug Co., Ltd.
发明人： SUGIYAMA,, Yumi , OKADA,, Hirofumi
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001
摘要： [Object] To provide a glow plug including a sheath tube whose resistance to oxidation can be maintained by reducing the occurrence of cracks in a melted portion of the sheath tube when the sheath tube is formed of a specific material.
[Solution] A glow plug 10 includes a sheath tube 810 and a heating coil 820. The sheath tube 810 is made of an alloy containing 50% or more by weight of Ni, 18 to 30% by weight of Cr, 1% or less by weight of Al, and 0.01 to 0.3% by weight of at least one component selected from Y and Zr. A main component of the heating coil 820 is tungsten (W) or molybdenum (Mo). A front end portion 822 of the heating coil 820 is embedded in a melted portion 816 of the sheath tube 810 and is not exposed at an outer surface of the sheath tube 810. When a is a maximum value of a length of the melted portion 816 in an axial line direction OD and b is a maximum value of a length of the melted portion 816 in a direction perpendicular to the axial line direction OD, 0.46 ≤ a/b is satisfied.
摘要翻译：本发明的目的在于提供一种包括护套管的电热塞，该护套管在由特定材料形成护套管时，通过减少护套管的熔融部分中的裂纹的发生而能够保持抗氧化性。 [预热]电热塞10具备鞘管810和加热线圈820.鞘管810由含有50重量％以上的Ni，18〜30重量％的Cr，1重量％以下的Al和0.01-0.3重量％的至少一种选自Y和Zr的组分。加热线圈820的主要成分是钨（W）或钼（Mo）。加热线圈820的前端部822埋设在鞘管810的熔融部816中，不在鞘管810的外表面露出.a为熔融部816的长度的最大值在轴线方向OD上，b为与轴线方向OD正交的方向上的熔融部816的长度的最大值，因此满足0.46≤a/ b。

47. 发明公开

EP3285004A4 GLOW PLUG 无效
公开(公告)号：EP3285004A4
公开(公告)日：2018-03-28
申请号：EP16779858
申请日：2016-03-14
申请人： BOSCH CORP
发明人： TAKATSU KATSUMI
IPC分类号： F23Q7/00
CPC分类号： F23Q7/00 , F23Q2007/002
摘要： Breakage in a short period is suppressed by improving a heat dissipation property. In a glow plug that includes: a heater element (10) that is inserted in a combustion chamber of an internal combustion engine; a housing (14) that supports the heater element in a state where a heating section of the heater element is projected; a resilient body (31) that couples the heater element and the housing to divide a space between the heater element and the housing into a tip side and a rear end side of the housing; and a pressure sensor (15) that is provided in a space on the rear end side of the resilient body in the housing to detect a pressure in the combustion chamber from displacement of the heater element, a space (142) on the tip side of the resilient body in the housing is filled with a heat transfer material (22) that is melted by heat transferred from the heater element.

48. 发明授权

EP3163170B1 METHOD OF PRODUCING GLOW PLUG AND THE GLOW PLUG 有权转让
标题翻译：生产发光插头和发光插头的方法
公开(公告)号：EP3163170B1
公开(公告)日：2018-03-21
申请号：EP16191544.2
申请日：2016-09-29
申请人： NGK Spark Plug Co., Ltd.
发明人： OKADA, Hirofumi
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001 , F23Q2007/004
摘要： To suppress breakage at a connection region where a front end coil and a rear end coil are connected, provided is a method of producing a glow plug including a sheath tube that extends in an axial direction and whose front end is closed, a front end coil that is disposed in the sheath tube and that is connected to a front end portion of the sheath tube, and a rear end coil that is disposed in the sheath tube and that is connected to a rear end portion of the front end coil. The method includes a welding step of, by melting a front end portion of the rear end coil, welding the rear end portion of the front end coil and the front end portion of the rear end coil such that at least part of the rear end portion of the front end coil is embedded in the front end portion of the rear end coil while being surrounded by the front end portion of the rear end coil. In the method, a main component of the front end coil is tungsten (W) or molybdenum (Mo), and a melting point of the rear end coil is lower than a melting point of the front end coil.

49. 发明公开

EP3260778A3 SYSTEM AND METHOD FOR ELECTRICAL SPARK DETECTION 有权
标题翻译：用于电子火花检测的系统和方法
公开(公告)号：EP3260778A3
公开(公告)日：2018-03-07
申请号：EP17176990.4
申请日：2017-06-20
申请人： JOHN ZINK COMPANY, L.L.C. , Molex, LLC
发明人： Chernyshov, Alex , Haskell, Reichl B. , Marko, Spiegel , Strong, Andrew
IPC分类号： F23Q3/00 , F23Q23/02 , H01T13/58
CPC分类号： G01R31/2829 , F23N2027/36 , F23N2031/12 , F23Q3/006 , F23Q23/02 , G01R1/44 , G01R35/005 , H01T13/58
摘要： A spark detector indicates the presence of a spark by analyzing sound waves generated when an electrical spark is produced from an electrical spark generator located on an igniter rod. The spark detector includes an acoustic sensor that is in communication with the igniter rod to determine the time for the spark sound wave to travel through the igniter rod to the acoustic sensor. If a spark is not detected, the spark detector may output a signal indicating at least one of (i) the spark was not detected, (ii) to replace the electrical spark generator immediately, or (iii) replace the electrical spark generator soon such as at the next scheduled maintenance. Furthermore, the spark detector may be calibrated based on current temperature of the igniter rod based upon time of propagation of a pulse sound wave, generated by a pulse-echo generator, to reflect off an end of the igniter rod.
摘要翻译：火花探测器通过分析当位于点火器杆上的电火花发生器产生电火花时产生的声波来指示火花的存在。火花探测器包括声学传感器，其与点火器杆连通以确定火花声波穿过点火器杆行进到声学传感器的时间。如果未检测到火花，则火花检测器可以输出指示（i）未检测到火花，（ii）立即更换电火花发生器，或（iii）立即更换电火花发生器中的至少一个的信号就像在下一次计划维护一样。此外，基于由脉冲回波发生器产生的脉冲声波的传播时间来基于当前点火器杆的温度来校准火花检测器以反射离开点火器杆的端部。

50. 发明公开

EP3287699A1 GLOW PLUG 审中-公开
标题翻译：发光插头
公开(公告)号：EP3287699A1
公开(公告)日：2018-02-28
申请号：EP16782896.1
申请日：2016-03-14
申请人： Bosch Corporation
发明人： TOYOSHIMA Yasuo
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001 , F23Q7/00 , F23Q2007/002 , F23Q2007/005 , G01M15/08
摘要： Breakage in a short period is suppressed by improving a heat dissipation property.
A glow plug (1) that includes: a heater (11), a tip of which is inserted in a combustion chamber of an internal combustion engine; a cylindrical body (12) that supports a base end of the heater; a housing (14) that supports the cylindrical body in a state where a heating section of the heater is projected; and a pressure sensor (15) that is provided in the housing and detects a pressure in a combustion chamber includes: a pressure introduction chamber (142) that is formed between the pressure sensor and the cylindrical body in the housing; and a communication path (21) that is formed in at least one of the housing and the cylindrical body and communicates between the combustion chamber and the pressure introduction chamber.
摘要翻译：通过改善散热性能来抑制短时间内的破损。一种电热塞（1），包括：加热器（11），其尖端插入内燃机的燃烧室中; 支承加热器的基端的圆筒体（12）壳体（14），其在突出加热器的加热部的状态下支撑筒体; 以及压力传感器（15），其设置在所述壳体内并检测燃烧室内的压力，包括：压力导入室（142），其形成在所述压力传感器与所述壳体内的所述筒状体之间; 以及连通路径（21），其形成在所述壳体和所述圆筒体中的至少一个中并且连通在所述燃烧室和所述压力引入室之间。

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