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1. 发明公开

EP2372851A3 Plasma jet ignition plug 有权
标题翻译： Plasmastrahlzündkerze
公开(公告)号：EP2372851A3
公开(公告)日：2014-06-18
申请号：EP11160681.0
申请日：2011-03-31
申请人： NGK SPARK PLUG CO., LTD.
发明人： Kameda, Hiroyuki , Sato, Yoshikuni , Nakano, Daisuke , Yamamura, Naofumi , Kasahara, Daisuke
IPC分类号： H01T13/50 , H01T13/39
CPC分类号： H01T13/50 , H01T13/39
摘要： A plasma jet ignition plug is provided having high ignition performance and high durability.
In the plasma jet ignition plug, at least a front end portion including a front end surface of a center electrode contains an oxide of at least one of rare earth elements in a total amount of 0.5% by mass to 10% by mass inclusive and W in an amount of 90% by mass or greater or contains Ir in an amount of 0.3% by mass to 3% by mass inclusive and W in an amount of 97% by mass or greater.
摘要翻译：提供具有高点火性能和高耐久性的等离子体喷射火花塞。在等离子喷射火花塞中，至少包括中心电极的前端面的前端部含有总量为0.5质量％〜10质量％以下的稀土元素中的至少一种的氧化物，W 其含量为90质量％以上，或含有0.3质量％〜3质量％的Ir且为97质量％以上的W 1。

2. 发明授权

EP2131462B1 Spark plug for internal combustion engine and method of manufacturing the same 有权转让
标题翻译：火花塞用于内燃机和它们的制备方法
公开(公告)号：EP2131462B1
公开(公告)日：2013-11-20
申请号：EP09161631.8
申请日：2009-06-02
申请人： NGK Spark Plug Co., Ltd.
发明人： Nunome, Kenji , Sato, Yoshikuni
IPC分类号： H01T13/39 , H01T21/02
CPC分类号： H01T13/39 , H01T21/02
摘要： A spark plug having a center electrode ; an insulator having an axial hole extending in the direction of an axis ; a metallic shell ; a ground electrode extending from a front end portion of the metallic shell ; a center-electrode-side noble metal chip joined to a distal end surface of the center electrode ; and a ground-electrode-side noble metal chip joined to a distal end surface of the ground electrode, the ground-electrode-side noble metal chip having a distal end surface facing toward a side surface portion of the center-electrode-side noble metal chip, and the ground electrode being bent at an angle that falls within a range of 120° to 140° inclusive.

3. 发明公开

EP2365594A3 Plasma-jet spark plug and ignition system 有权
标题翻译：等离子喷射点火和点火系统
公开(公告)号：EP2365594A3
公开(公告)日：2012-09-05
申请号：EP11156867.1
申请日：2011-03-03
申请人： NGK Spark Plug Co., Ltd.
发明人： Kameda, Hiroyuki , Sato, Yoshikuni , Nakano, Daisuke , Yamamura, Naofumi , Kasahara, Daisuke
IPC分类号： H01T13/52 , H01T13/54 , H01T13/20 , H01T13/39 , H01T13/50
CPC分类号： H01T13/50 , H01T13/20
摘要： [Objective] To maintain excellent ignition performance over a long period of time.
[Means for Solution] A plasma jet ignition plug 1 includes an insulator 2 having an axial hole 4 extending therethrough in the direction of an axis CL1, a center electrode 5 inserted into the axial hole 4, and a ground electrode 27 disposed frontward of the front end of the insulator 2. The insulator 2 has a cavity 31 which is defined by the wall surface of the axial hole 4 and the front end surface of the center electrode 5 and opens frontward. The ground electrode 27 has a through hole 28 for establishing communication between the cavity 31 and an ambient atmosphere. A front end portion of the center electrode 5 is formed into a taper portion 51 whose diameter reduces frontward with respect to the direction of the axis CL1. The outside diameter of a front end of the taper portion 51 is smaller than the diameter of the through hole 28. The cavity 31 has a substantially constant diameter with respect to the direction of the axis CL1. The diameter DC (mm) of the cavity 31 and the length LC (mm) of the cavity 31 along the direction of the axis CL1 satisfy the dimensional relation 0.5 ≤ LC/DC

4. 发明授权

EP1077375B1 Method and apparatus for measuring NOx gas concentration 失效
标题翻译：的方法和装置的氮氧化物的测量
公开(公告)号：EP1077375B1
公开(公告)日：2012-06-20
申请号：EP00109915.9
申请日：1998-03-23
申请人： NGK SPARK PLUG CO., LTD
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.

5. 发明公开

EP1074834A1 Method and apparatus for measuring NOx gas concentration 失效
标题翻译： Verfahren und Vorrichtung zur Messung der Stickstoffoxidkonzentration
公开(公告)号：EP1074834A1
公开(公告)日：2001-02-07
申请号：EP00109523.1
申请日：1998-03-23
申请人： NGK SPARK PLUG CO., LTD
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relates to a method and apparatus for detecting the concentration of exhaust gas using a gas sensor which detects the concentration of a specific component in a gas discharged from an internal combustion engine. A zero point of a detection output of the gas sensor specifying the zero concentration of said specific component is calibrated, based on a detection output of the gas sensor in the atmosphere, and the concentration of said specific component is deleted based on the calibrated detection output.
摘要翻译：本发明涉及一种用于检测废气浓度的装置，包括：设置在内燃机的排气管中的NOx吸留催化剂，安装在排气管中的所述NOx吸留催化剂下游的NOx传感器，以检测NOx浓度在废气中，驱动条件设定装置，用于瞬时提供用于清除所述NOx吸留催化剂中所含的NOx的浓空气燃料比，以及用于根据检测输出的变化来检测所述NOx吸留催化剂的劣化状态的装置的NOx传感器在设定浓空燃比之前和之后。

6. 发明公开

EP0845670A2 Method and apparatus for measuring NOx gas concentration 有权
标题翻译： Verfahren und Vorrichtung zur Messung der Stickstoffoxidkonzentration
公开(公告)号：EP0845670A2
公开(公告)日：1998-06-03
申请号：EP97121139.6
申请日：1997-12-02
申请人： NGK SPARK PLUG CO., LTD
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatuo
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , Y10T436/179228
摘要： This discloses a method and apparatus for accurately determining a NOx concentration of a measurement gas that contains H 2 O and /or CO 2, without being affected by a dissociation of H 2 O and /or CO 2.
In this method and apparatus,

(1) the NOx-measurement gas containing H 2 O and/or CO 2 is introduced to travel through a heated flow channel formed by an oxygen ion conductive solid ceramic electrolyte body that electrically controls amount of O 2 from the flow channel,
(2) while said measurement gas travels, a residual gas including NO and H 2 O and/or CO 2 is formed from the measurement gas,
(3) said residual gas is flowed to contact a catalytic electrode to which a negative polarity of a low voltage that does not dissociate H 2 O and /Or CO 2 but dissociates NO is applied, so that said electrode dissociates a NO gas of the residual gas into N ions and O ions and flows an electric current through the electrolyte body in proportion to an amount of the O ions dissociated from said residual gas at the electrode, and
(4) the NOx concentration in the measurement gas is determined based on the current.
The low voltage preferably applied in the above (3)is about 350-450 mV.
摘要翻译：这公开了一种用于精确地确定含有H 2 O和/或CO 2的测量气体的NO x浓度而不受H 2 O和/或CO 2的解离影响的方法和装置。在该方法和装置中，（1）引入含有H 2 O和/或CO 2的NOx测量气体，以通过由导电性固体陶瓷电解质体形成的加热流动通道，所述氧离子传导性固体陶瓷电解质体电流控制来自流动通道的O 2量，（2）当所述测量气体行进时，由测量气体形成包括NO和H 2 O和/或CO 2的残余气体，（3）所述残留气体流动以接触催化电极，不会分解H 2 O和/或CO 2，而是解离NO，使得所述电极将残留气体的NO气体分解为N离子和O离子，并将电流与O离子的量成比例地流过电解质体在电极处与所述残留气体分离，（4）测定气体中的NOx浓度根据电流来决定。上述（3）中优选施加的低电压为约350〜450mV。

7. 发明授权

EP2239458B1 Plasma-jet spark plug 有权
标题翻译：等离子喷射火花塞
公开(公告)号：EP2239458B1
公开(公告)日：2018-01-17
申请号：EP10158481.1
申请日：2010-03-30
申请人： NGK SPARK PLUG CO., LTD.
发明人： Nakano, Daisuke , Sato, Yoshikuni , Kasahara, Daisuke , Yamamura, Naohumi , Kameda, Hiroyuki
IPC分类号： F02P9/00 , H01T13/50
CPC分类号： F02P9/007 , H01T13/50
摘要： [Objective] To restrain the radiation of noise while allowing application of sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition by a plasma jet ignition plug. [Means for Solution] A wire-wound resistor 21 having an inductance of 1 µH to 100 µH inclusive and a resistance of 1 © or less is provided on at least one of a center electrode 20 and a ground electrode 30. The wire-wound resistor 21 restrains current which is generated by the influence of stray capacitance present in a plasma jet ignition plug, thereby reducing noise.

8. 发明公开

EP2088653A3 Plasma jet ignition plug 审中-公开
标题翻译： Plasmastrahlzündkerze
公开(公告)号：EP2088653A3
公开(公告)日：2013-05-22
申请号：EP09152216.9
申请日：2009-02-05
申请人： NGK Spark Plug Co., Ltd.
发明人： Nakamura, Toru , Yamada, Yuichi , Kunitomo, Iwao , Sato, Yoshikuni , Nakano, Daisuke
IPC分类号： H01T13/50 , H01T13/32
CPC分类号： H01T13/50 , H01T13/32
摘要： A plasma jet ignition plug is provided which is capable of restraining occurrence of channeling while reducing removal of energy of plasma through a ground electrode at the time of emission of plasma. The plasma jet ignition plug includes a ground electrode (201) which projects inwardly from a front end face (57) of a metallic shell (50) toward an opening end (14) of a cavity (60) which is open at a front end face (16) of an insulator (10). A projecting distal end (203) which forms a spark discharge gap between the distal end (203) and a center electrode (20) within a cavity (60) is located inwardly, with respect to a diametral direction P orthogonal to an axis O, of a position which is located 0.5 mm radially outward from the opening end (14) of the cavity (60).

9. 发明授权

EP1074834B1 Method and apparatus for measuring NOx gas concentration 失效
标题翻译：用于测量NOx气体浓度的方法和设备
公开(公告)号：EP1074834B1
公开(公告)日：2012-05-23
申请号：EP00109523.1
申请日：1998-03-23
申请人： NGK SPARK PLUG CO., LTD
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.

10. 发明公开

EP2239458A1 Plasma-jet spark plug 有权
标题翻译： Plasmastrahlzündkerze
公开(公告)号：EP2239458A1
公开(公告)日：2010-10-13
申请号：EP10158481.1
申请日：2010-03-30
申请人： NGK Spark Plug Co., Ltd.
发明人： Nakano, Daisuke , Sato, Yoshikuni , Kasahara, Daisuke , Yamamura, Naohumi , Kameda, Hiroyuki
IPC分类号： F02P9/00 , H01T13/41 , H01T13/20
CPC分类号： F02P9/007 , H01T13/50
摘要： [Objective] To restrain the radiation of noise while allowing application of sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition by a plasma jet ignition plug.
[Means for Solution] A wire-wound resistor 21 having an inductance of 1 µH to 100 µH inclusive and a resistance of 1 Ω or less is provided on at least one of a center electrode 20 and a ground electrode 30. The wire-wound resistor 21 restrains current which is generated by the influence of stray capacitance present in a plasma jet ignition plug, thereby reducing noise.
摘要翻译： [目的]为了抑制噪声辐射，同时允许在通过等离子体喷射火花塞点火时施加足够大的电流以产生等离子体到火花放电间隙。 [解决方案]在中心电极20和接地电极30中的至少一个上提供具有1μH至100μH的电感和1Ω或更小的电感的绕线电阻器21。电阻器21抑制由等离子喷射火花塞中存在的杂散电容的影响而产生的电流，从而降低噪声。

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