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1. 发明授权

US12006905B2 Method and device for detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system in an internal combustion engine 有权
公开(公告)号：US12006905B2
公开(公告)日：2024-06-11
申请号：US17265202
申请日：2019-07-30
申请人： ELDOR CORPORATION S.P.A.
发明人： Eugenio Carugati , Stefano Silva , Marco Albi , Pasquale Forte , Pierluigi Pozzi
IPC分类号： F02P17/12 , F02P3/05 , H01T13/58 , H01T13/60
CPC分类号： F02P17/12 , F02P3/051 , H01T13/58 , H01T13/60 , F02P2017/121
摘要： A method of detecting the breakdown voltage between the electrodes of a spark plug connected to an ignition coil for a cylinder ignition system, in an internal combustion engine, includes a detection of an opening of the switch on the primary winding and a detection of a voltage on that primary winding, with the generation of a first signal representative of the voltage trend following the opening of the switch.
The first signal is then integrated and, following an identification of a breakdown at the ends of the spark plug, a breakdown voltage value is determined as a function of the value of the integrated signal at the time of the breakdown.

2. 发明授权

US11326573B1 Spark plug testing tool 有权
公开(公告)号：US11326573B1
公开(公告)日：2022-05-10
申请号：US17325665
申请日：2021-05-20
申请人： General Electric Company
发明人： Rubi Elizabeth Triana Zorsano
IPC分类号： F02P17/12 , H01T13/58 , F02C7/266 , H01T13/60
摘要： The present application provides a spark plug testing tool for a spark plug assembly of a gas turbine engine combustor. The spark plug testing tool may include a dielectric tube attached to the spark plug assembly and a first support bracket to support the spark plug assembly and the dielectric tube therein such that the spark plug assembly remains electrically connected to the gas turbine engine combustor during testing.

3. 发明申请

US20220077660A1 SYSTEM AND METHOD FOR SPARK PLUG IDENTIFICATION AND ENGINE MONITORING 有权
公开(公告)号：US20220077660A1
公开(公告)日：2022-03-10
申请号：US17415668
申请日：2018-12-20
申请人： AI ALPINE US BIDCO INC.
发明人： Viswanathan Kanakasabai , Suma Memana Narayana Bhat , Markus Kraus , Thomas Martin Mai
IPC分类号： H01T13/04 , H01T13/20 , F02P13/00 , H01T13/44 , H01T13/58 , F02P17/12
摘要： 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.

4. 发明授权

US10961973B2 Spark plug electrode wear rate determination for a spark-ignited engine 有权
公开(公告)号：US10961973B2
公开(公告)日：2021-03-30
申请号：US16413105
申请日：2019-05-15
申请人： Caterpillar Energy Solutions GmbH
发明人： Darshit Shah
IPC分类号： H01T13/58 , F02P17/10 , F02P17/12 , F02P3/05 , H01T13/60
摘要： A method for determining the wear rate of a spark plug electrode of an ignition system of an internal combustion engine comprises determining a risetiine number indicating the time required for raising the current and thereby the primary energy which is supplied to an ignition coil of the spark plug from an inactive level to a predetermined level, determining an operating condition indicator configured to indicate an operating condition of the ignition system, determining a wear rate of the spark plug electrode based on a difference of a first spark plug state indicator at a first time instance and a second spark plug state indicator at a second time instance, wherein the first time instance and the second time instance are separated by a predetermined time interval, wherein the spark plug state indicator is determined as a value based on the risetime number and the operating condition indicator.

5. 发明授权

US10619617B2 Ignition device for internal combustion engine 有权
公开(公告)号：US10619617B2
公开(公告)日：2020-04-14
申请号：US15893175
申请日：2018-02-09
申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO , DENSO CORPORATION
发明人： Shogo Sayama , Ryou Masuda , Takayuki Fuyuto , Masao Kinoshita , Yoshihiro Nomura , Akimitsu Sugiura
IPC分类号： F02P9/00 , F02P17/12 , F02P15/10 , F02D35/02 , F23Q23/00 , F02P3/05 , H01F38/12 , F02B19/12 , H01T13/58
CPC分类号： F02P9/002 , F02D35/02 , F02P3/05 , F02P9/007 , F02P15/10 , F02P17/12 , F23Q23/00 , F02B19/12 , F02P2017/121 , H01F38/12 , H01T13/58
摘要： An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.

6. 发明授权

US10113527B2 Spark plug testing kit 有权
公开(公告)号：US10113527B2
公开(公告)日：2018-10-30
申请号：US15533335
申请日：2016-04-28
申请人： John Leeson , Darren Leeson , Justine Leeson
发明人： John Leeson
IPC分类号： F02P17/12 , H01T13/58 , H01T21/02 , G01R31/00
摘要： There is provided a spark plug testing kit for safe and convenient testing of petrol engines. The testing kit has a spark observation device within which a spark gap of a spark plug installed therein may be observed in use. The kit has a positive lead for connection to the engine distributor and an earth lead configured for connection to a spark plug opening engaging device. The spark plug engaging opening device comprises threading for turning into a spark plug socket of an engine block and defines an elongate male electrical connection nut standing proud therefrom over which a corresponding electrical connection of the earth lead may be easily and safely electrically connected. The spark plug engaging opening device further comprises exhaust ports through a side of the device for engine decompression during cranking.

7. 发明授权

US10044173B2 Method of manufacturing spark plug 有权
公开(公告)号：US10044173B2
公开(公告)日：2018-08-07
申请号：US15582912
申请日：2017-05-01
申请人： NGK SPARK PLUG CO., LTD.
发明人： Jiro Kyuno
IPC分类号： H01T21/02 , H01T13/58 , H01J9/00
摘要： A method of manufacturing a spark plug including a cylindrical tubular metallic shell having a screw portion on an outer surface thereof and a ground electrode attached to an end surface at one end of the metallic shell in the direction of the center axis thereof comprises a measurement step of measuring a surface of the screw portion which passes through a measurement region located at a predetermined position in the direction of the center axis, while rotating the metallic shell about the center axis thereof; an attachment position calculation step of calculating, on the basis of information obtained in the measurement step, an attachment position at which the ground electrode is attached to the end surface; and a joining step of joining the ground electrode to the end surface at the attachment position, wherein the measurement step includes a step of measuring a displacement of the surface of the screw portion by using a non-contact-type displacement sensor.

8. 发明授权

US09735553B1 System and method for testing breakdown voltage/dielectric strength of spark plug insulators 有权
公开(公告)号：US09735553B1
公开(公告)日：2017-08-15
申请号：US14813443
申请日：2015-07-30
申请人： FRAM GROUP IP LLC
发明人： Jing Zheng , Corey Eiden , Matthew B. Below
IPC分类号： H01T13/58 , F02P17/00 , G01R31/12
CPC分类号： H01T13/58 , F02P17/00 , G01R31/12 , G01R31/1227 , H01T13/60
摘要： A system for testing an insulative material for a spark plug comprises a test spark plug having at least a center electrode and an insulator comprised of an insulative material surrounding at least a portion of the center electrode, wherein the insulator has an end that is closed, whereby the closed end of the insulator encloses an end of the center electrode. The system further includes a test engine that simulates engine conditions, wherein a conventional spark plug is installed in a first ignition port of the test engine and the test spark plug is installed in a second ignition portion of the test engine and a control system for controlling ignition signals to the test spark plug and the conventional spark plug.

9. 发明申请

US20170170637A1 INSPECTION METHOD AND APPARATUS OF SPARK PLUG INSULATOR 审中-公开
公开(公告)号：US20170170637A1
公开(公告)日：2017-06-15
申请号：US15377030
申请日：2016-12-13
申请人： NGK SPARK PLUG CO., LTD.
发明人： Shinichiro KOMINAMI , Hajime KAWANO
IPC分类号： H01T13/58 , G01B11/08
CPC分类号： H01T13/58 , G01B11/08 , H01T13/20 , H01T21/02
摘要： A method of inspecting a spark plug insulator that includes a collar portion, a rear body portion located in rear of the collar portion and a leg portion located in front of the collar portion. The inspection method includes: performing measurement of a distance in a radial direction of the insulator between an outer circumferential surface of the leg portion at a first measurement point and an outer circumferential surface of the any portion of the insulator other than the leg portion at a second measurement point, wherein the measurement is performed at a plurality of positions in a circumferential direction of the insulator with no contact to the measurement target; determining, as a circular runout, a difference between maximum and minimum values among measurement results of the distance; and making pass/fail judgment of the insulator based on the determined circular runout.

10. 发明授权

US09249773B2 Apparatus and method for static testing a spark plug assembled in an internal combustion engine including cracked ceramic insulator detection 有权
标题翻译：用于静态测试组装在内燃机中的火花塞的装置和方法，包括破裂的陶瓷绝缘体检测
公开(公告)号：US09249773B2
公开(公告)日：2016-02-02
申请号：US13658252
申请日：2012-10-23
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC , Bauer Associates, Inc.
发明人： Thomas M. Cunningham , Harold M. Ryan
IPC分类号： F02P17/00 , F02P1/08 , H01T13/05 , H01T13/58 , H01T21/02
CPC分类号： F02P17/00 , H01T13/58 , H01T21/02
摘要： An apparatus and method is provided for testing a spark plug after the spark plug is assembled in an internal combustion engine. The apparatus includes a high voltage test probe to mechanically probe the spark plug. The high voltage test probe includes a non-electrically conductive part, an electrically conductive ring substantially shielded by the non-electrically conductive part, and a high voltage contactor for electrically connecting to a terminal end of the spark plug. The apparatus also includes a high voltage control box having a high voltage source and an electrical ground, and including at least one of an insulator crack detection circuit and a spark plug firing circuit. The method includes using the apparatus to test assembled spark plugs.
摘要翻译：提供一种用于在火花塞组装在内燃机中之后测试火花塞的装置和方法。该装置包括用于机械地探测火花塞的高压测试探针。高电压测试探针包括非导电部分，基本上被非导电部分屏蔽的导电环，以及用于电连接到火花塞终端的高压接触器。该装置还包括具有高电压源和电接地的高压控制箱，并且包括绝缘体裂纹检测电路和火花塞点火电路中的至少一个。该方法包括使用该装置来测试组装的火花塞。

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