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公开(公告)号：US11984705B2
公开(公告)日：2024-05-14
申请号：US17415668
申请日：2018-12-20
Applicant: AI ALPINE US BIDCO INC.
Abstract: A spark plug assembly includes a spark plug, where the spark plug includes a high voltage connector, an insulator body, a metallic shell, and an electrical conductor at least partly disposed in the insulator body and the metallic shell. The spark plug assembly includes a detection unit having a transmitter device and a receiver device. The transmitter device is coupled to the spark plug and is electrically disposed between the high voltage connector and the electrical conductor. Further, the transmitter device is configured to draw an excitation current from the electrical conductor. The transmitter device includes an optical signal generator that is configured to generate an optical signal in response to the drawn excitation current. The receiver device is disposed in optical communication with the transmitter device and configured to receive the optical signal from the transmitter device.
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公开(公告)号：US20240151202A1
公开(公告)日：2024-05-09
申请号：US18549528
申请日：2022-03-04
Applicant: SEM AB
Inventor： Bert Gustafsson
Abstract: An ignition coil assembly for installation in a spark plug well of a combustion engine and for enabling a spark of a spark plug installed in a distal end of the spark plug well. The ignition coil assembly includes an ignition coil dimensioned and configured to transform a first voltage to a second voltage for enabling the spark, and an elongated connection portion extending in the spark plug well when the ignition coil assembly is installed in the spark plug well.
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公开(公告)号：US11769627B2
公开(公告)日：2023-09-26
申请号：US18071957
申请日：2022-11-30
Applicant: DENSO CORPORATION
Inventor： Norihiro Adachi , Kanechiyo Terada , Tetsuya Miwa
CPC classification number: H01F38/12 , F02P3/02 , F02P13/00 , H01F2038/122
Abstract: An ignition coil for an internal combustion engine includes a primary bobbin including a winding cylinder part and a connection part between the winding cylinder part and a connector part, a primary coil including a primary main coil and a primary sub coil, and a secondary coil. When one of the primary main coil and the primary sub coil that includes an innermost coil part around the winding cylinder part is defined as a firstly-wound coil and the other is defined as a secondly-wound coil, firstly-wound ends, which are ends of the firstly-wound coil, and secondly-wound ends, which are ends of the secondly-wound coil, are attached to the connection part, and a shortest distance from a central axis of the winding cylinder part to each of the firstly-wound ends is smaller than a shortest distance from the central axis of the winding cylinder part to each of the secondly-wound ends.
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公开(公告)号：US11664645B2
公开(公告)日：2023-05-30
申请号：US17528902
申请日：2021-11-17
Applicant: DENSO CORPORATION
Inventor： Daisuke Shimamoto , Kaori Doi , Akimitsu Sugiura , Syuhei Nakashima , Kyosuke Fujita
Abstract: A spark plug includes a housing, a porcelain insulator, a center electrode, a ground electrode, and a prechamber-defining portion. The prechamber-defining portion has a prechamber formed therein. The prechamber-defining portion has a plurality of spray holes. At least one of the spray holes is an upstream spray hole which is arranged upstream of a plug center axis in a gas flow within a main combustion chamber and designed such that and an angle which an extension in an opening direction makes with an inner wall surface of the prechamber is selected to be larger than 90°. A spark gap is formed upstream of a plug center axis in the gas flow within the main combustion chamber.
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公开(公告)号：US20180347507A1
公开(公告)日：2018-12-06
申请号：US15612613
申请日：2017-06-02
Applicant: Caterpillar Inc.
Inventor： Joshua Hyde , Lucas Burger , Jonathan Chittenden
CPC classification number: F02F1/40 , F02F1/242 , F02F2200/00 , F02P13/00
Abstract: A cylinder head assembly includes a cylinder head having an igniter mount that forms a portion of a fireside surface of the cylinder head. The assembly further includes a sleeve abutting the igniter mount within an igniter bore in the cylinder head, such that the sleeve and the cylinder head together form an igniter cooling passage circumferential of the igniter mount, and extending axially between the sleeve and the cylinder head. The configuration of the igniter mount and sleeve improves heat dissipation and reduces likelihood of pre-ignition in an internal combustion engine.
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Patent Agency Ranking
公开(公告)号：US20180328262A1
公开(公告)日：2018-11-15
申请号：US15774617
申请日：2015-11-10
Applicant: NISSAN MOTOR CO., LTD. , RENAULT s.a.s.
Inventor： Yoshihiko IWABUCHI , Daisuke TANAKA , Ryo UCHIDA
CPC classification number: F02B23/10 , F02B2023/103 , F02B2023/106 , F02B2275/48 , F02D9/08 , F02M61/14 , F02M61/1806 , F02P5/045 , F02P5/15 , F02P13/00
Abstract: In a control method of an internal combustion engine including a fuel injection valve having a plurality of injection holes and adapted to directly inject a fuel into a cylinder and an ignition plug adapted to generate a plug discharging channel, after fuel injection is performed, spark ignition is performed while turbulence in an air flow is generated by the fuel injection by an ignition plug disposed so that a discharging region is sandwiched by fuel sprays injected from the two adjacent injection holes and located within a range where the turbulence in the air flow is generated.
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公开(公告)号：US20180309268A1
公开(公告)日：2018-10-25
申请号：US15765922
申请日：2015-11-12
Applicant: Mitsubishi Electric Corporation
Inventor： Takashi IDOGAWA
Abstract: This invention is concerning an ignition device for an internal combustion engine, wherein a plug boot has a reduced-inner-diameter portion having an inner diameter size smaller than that of the other portion, a spring has a larger diameter portion having a diameter size larger than that of the other portion, and a plurality of reduced clearances each having a width reduced by the reduced-inner-diameter portion and the larger diameter portion are formed between the spring and the inner wall surface of the plug boot.
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公开(公告)号：US10077754B2
公开(公告)日：2018-09-18
申请号：US14119329
申请日：2012-05-23
Applicant: Yuji Ikeda
Inventor： Yuji Ikeda
IPC: F02P15/00 , H01T13/20 , F02M27/04 , H01T13/42 , F02P13/00 , H01T13/50 , F02P23/04 , F02P9/00 , F02P3/04
CPC classification number: F02P15/00 , F02M27/042 , F02P3/04 , F02P9/002 , F02P9/007 , F02P13/00 , F02P15/006 , F02P23/045 , H01T13/20 , H01T13/42 , H01T13/50
Abstract: Provided is an ignition plug (15) that has an antenna (54) for emitting high-frequency EM waves to combustion chamber (20) of an internal combustion engine (10), wherein the propagation velocity of the flame is augmented using the high-frequency EM waves emitted from the antenna (54). The ignition plug (15) has an ignition plug body (30) and an antenna (54). The antenna (54) is located on the front-tip side surface of the cylindrical second conductive member (33) within the ignition plug body (30), which accommodates a rod-shaped first conductive member (31) and cylindrical insulation (32) surrounding the first conductive member (31).
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公开(公告)号：US20180254144A1
公开(公告)日：2018-09-06
申请号：US15760308
申请日：2016-09-01
Applicant: DENSO CORPORATION
Inventor： Kazuhide KAWAI
Abstract: An ignition coil for an internal combustion engine according to the present embodiment includes a primary coil, a secondary coil, a center core, an outer circumferential core, an igniter, a case, a connector unit, and a relay member. The relay member electrically connects the outer circumferential core and a grounding terminal member. The relay member includes: a base portion provided along the rear surface of an engagement wall; a standing portion standing rearward of the base portion; and a curved portion that extends from a rear end of the standing portion in a vertical direction Z orthogonal to a coil axis direction X and is curved to protrude rearward. The base portion is in contact with an inner grounding terminal at one end in the vertical direction Z. The standing portion is provided further outward than the igniter in a horizontal direction Y. The curved portion is elastically deformed and is urged against a front surface of the outer circumferential core.
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公开(公告)号：US20180226764A1
公开(公告)日：2018-08-09
申请号：US15889434
申请日：2018-02-06
Applicant: Kentaroh HAGITA , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
Inventor： Kentaroh HAGITA , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
CPC classification number: H01S3/034 , F02P13/00 , F02P23/04 , G02B1/118 , H01S3/005 , H01S3/025 , H01S3/0606 , H01S3/0627 , H01S3/094053 , H01S3/094057 , H01S3/09415 , H01S3/113 , H01S3/1643 , H01S3/1685 , H01S5/423 , H01T13/06
Abstract: Laser devices include a light source that emits a laser beam, an optical system that concentrates the laser beam emitted from the light source, an optical window through which the laser beam exited from the optical system passes, a housing that accommodates the optical system, and an optical window holding member fixed to the housing. The optical window holding member holds the optical window. In the first laser device, the optical window has a face or a protruding face through which the laser beam passes. When the optical window has the face, the face is flush with an edge of the optical window holding member and a film is formed on the face. When the optical window has the protruding face, the protruding face protrudes with reference to the edge of the optical window holding member and a film is formed on the protruding face.
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