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公开(公告)号：US1495215A
公开(公告)日：1924-05-27
申请号：US59704922
申请日：1922-10-26
申请人： STERLING WILLIAMS
发明人： STERLING WILLIAMS
IPC分类号： H01T13/05
CPC分类号： H01T13/05
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公开(公告)号：US12009640B2
公开(公告)日：2024-06-11
申请号：US18127366
申请日：2023-03-28
申请人： EcoPower Spark, LLC
发明人： David Resnick
摘要： One example provides a spark plug having a center electrode including first material and a second material, the second material having a hardness rating greater than a hardness rating of the first material. The center electrode includes an electrode head, wherein at least a portion of the electrode head is disposed beyond an end surface of an insulative nose toward the firing end and has a cross-sectional area perpendicular to an axial centerline greater than a cross-sectional area of the end surface of the insulative nose. The center electrode has a region of first material disposed axially beyond the end surface of the insulative nose, and includes a shield element of the second material which covers exposed surfaces of the region of first material disposed beyond the end surface of the insulative nose. An electrode wire extends from the electrode head into a central bore of the insulative nose.
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公开(公告)号：US20230155354A1
公开(公告)日：2023-05-18
申请号：US17802334
申请日：2021-11-04
发明人： Seiji NAKANO , Takehito KUNO , Kota YAMAUCHI
摘要： A spark plug has an insulator having a through hole formed along an axial direction, a center electrode which is partially inserted into a portion of the through hole on a forward end side in the axial direction, and a glass seal portion which is in contact with the insulator and the center electrode within the through hole, in which the glass seal portion contains glass and an electrically conductive substance. The glass contains an Si component and a B component in a total amount of 50 mass % or more, as reduced to SiO2 and B2O3, a Zn component in an amount of 20 mass % to 35 mass % as reduced to ZnO, and an alkali metal component. The glass contains, as the alkali metal component, an Na component in an amount less than 1 mass % as reduced to Na2O.
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公开(公告)号：US11189422B2
公开(公告)日：2021-11-30
申请号：US16722690
申请日：2019-12-20
发明人： Atsushi Sawa , Hiroshi Morita
摘要： This ignition coil includes: a bar-shaped resistor electrically connected to a terminal of a coil assembly via a relay; a case for storing these; and a filler filling gaps inside the case. The case includes a body, a cylindrical output portion protruding from the body, and an annular holding portion protruding inward from an inner circumferential surface of the output portion and formed integrally with the output portion. A part of the resistor is inserted into the holding portion, and thus a first internal area located on the body side with respect to the holding portion and shut off from outside is formed in an internal area of the output portion. The filler fills the first internal area.
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公开(公告)号：US10718309B2
公开(公告)日：2020-07-21
申请号：US15520993
申请日：2015-10-22
申请人： DENSO CORPORATION
发明人： Kazuhide Kawai
摘要： An ignition coil for an internal combustion engine has a primary coil and a secondary coil, a case, a high voltage connection terminal, and a conduction terminal. The high voltage connection terminal is accommodated in the case in a state being sealed by a filling resin. The high voltage connection terminal is disposed in a state inclined an aligned direction of the secondary coil and the conduction terminal, and is configured to be elastically deformable. The conduction terminal includes an engaging part for engaging a terminal distal end portion of the high voltage connection terminal and a supporting part for supporting a terminal intermediate portion of the high voltage connection terminal which is a portion closer to a connecting portion with the secondary coil than the terminal distal end portion is. In the aligned direction, the terminal distal end portion contacts with the engaging part from a side opposite to a secondary coil side, and the terminal intermediate portion contacts with the supporting part from the secondary coil side.
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公开(公告)号：US20200219650A1
公开(公告)日：2020-07-09
申请号：US16722690
申请日：2019-12-20
发明人： Atsushi SAWA , Hiroshi MORITA
摘要： This ignition coil includes: a bar-shaped resistor electrically connected to a terminal of a coil assembly via a relay; a case for storing these; and a filler filling gaps inside the case. The case includes a body, a cylindrical output portion protruding from the body, and an annular holding portion protruding inward from an inner circumferential surface of the output portion and formed integrally with the output portion. A part of the resistor is inserted into the holding portion, and thus a first internal area located on the body side with respect to the holding portion and shut off from outside is formed in an internal area of the output portion. The filler fills the first internal area.
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公开(公告)号：US20190131774A1
公开(公告)日：2019-05-02
申请号：US15890737
申请日：2018-02-07
发明人： Hung-Yu LIN
摘要： A car ignition device and an ignition accelerator are disclosed. The car ignition device includes a magnetic shielding conductive element, a spark plug and a magnetic element. The magnetic shielding conductive element has a first disposing portion and a second disposing portion. One end of the spark plug is disposed inside the first disposing portion and electrically connected with the magnetic shielding conductive element. The magnetic element is disposed at the second disposing portion, and has a north-seeking pole and a south-seeking pole. The north-seeking pole is located at one side of the magnetic element near the spark plug. The south-seeking pole is located at another side of the magnetic element away from the spark plug. The magnetic shielding conductive element shields a magnetic force of the magnetic element in a direction toward the spark plug. The invention has higher ignition efficiency.
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公开(公告)号：US09853422B2
公开(公告)日：2017-12-26
申请号：US15269811
申请日：2016-09-19
发明人： Jung Hun Lee , Dong Soo Lee
摘要： A spark plug may include a center electrode disposed in a center portion of the spark plug, an insulator surrounding the center electrode, and a metal shell surrounding the insulator and having a ground electrode extending downwards from a lower end of the metal shell and an inner surface facing the insulator, the inner surface being concavely shaped to form a shielding space between the concavely shaped portion of the inner surface and the insulator for adjusting a heat range of the spark plug.
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公开(公告)号：US09698572B1
公开(公告)日：2017-07-04
申请号：US14472992
申请日：2014-08-29
CPC分类号： H01T13/05 , F02P1/02 , F02P13/00 , H01T13/12 , H05K9/0064
摘要： A spark plug RFI suppression arrangement comprises a spark plug having a proximal end at which an ignition terminal is located and a distal end at which a pair of electrodes are separated by a spark gap. The spark plug further has an insulator portion and a conductive case located intermediate the proximal and distal ends. The arrangement further has an ignition wire having an end portion carrying a connector removably attached to the ignition terminal of the spark plug. A spark plug boot is located at the end portion of the ignition wire, the boot being configured to cover the connector and at least a portion of the spark plug. A radio frequency interference (RFI) suppression sleeve is connected to the spark plug boot and is in electrical communication with the conductive case of the spark plug such that interference produced by operation of the spark plug is suppressed by grounding through the conductive case.
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