公开(公告)号：US20180301877A1

公开(公告)日：2018-10-18

申请号：US15769120

申请日：2016-10-07

Applicant: Mitsubishi Electric Corporation ,  NGK SPARK PLUG CO., LTD.

Inventor： Taichiro TAMIDA ,  Takahiro INOUE ,  Takashi HASHIMOTO ,  Akira NAKAGAWA ,  Tomokazu SAKASHITA ,  Takayoshi NAGAI ,  Kimihiko TANAYA ,  Hiroyuki KAMEDA ,  Yuichi YAMADA ,  Kenji BAN

IPC: H01T13/32 ,  F02B23/08 ,  F02P13/00 ,  F02P5/145 ,  F02P3/01

CPC classification number: H01T13/32 ,  F02B23/08 ,  F02P3/01 ,  F02P5/145 ,  F02P13/00 ,  F02P15/10 ,  F02P23/04 ,  H01T13/34 ,  H01T13/467 ,  H01T13/50 ,  H01T13/52 ,  H01T13/54 ,  H01T19/04 ,  H05H1/2406 ,  H05H2001/2412 ,  H05H2001/2418

Abstract: In an ignition plug, since a ground electrode is formed in a thin-rod-shape or a mesh-like shape, sufficiently strong radicals are locally generated by a barrier discharge, an anti-inflammation effect by the electrode is small, and the growth of a flame is hardly hindered. Furthermore, by making the thickness dimension of a second dielectric facing a discharge region uniform, the barrier discharge is spread over the surface of the second dielectric, the generation of the radicals is maintained, and combustibility after ignition is promoted. Furthermore, because an end portion of a high voltage electrode and a ground electrode are disposed to face each other within a combustion chamber, a fuel gas introduced into the combustion chamber is liable to flow into the discharge region, and is easily ignited by the radicals generated due to the discharge.

公开(公告)号：US10001105B2

公开(公告)日：2018-06-19

申请号：US15454429

申请日：2017-03-09

Applicant: West Virginia University

Inventor： James E. Smith ,  Franz A. Pertl

IPC: F02P23/04 ,  F02P9/00 ,  F02P3/01 ,  H01T9/00 ,  H01T19/00

CPC classification number: F02P9/007 ,  F02P3/01 ,  F02P23/045 ,  H01J37/32091 ,  H01T9/00 ,  H01T13/50 ,  H01T19/00

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

公开(公告)号：US20180006435A1

公开(公告)日：2018-01-04

申请号：US15637704

申请日：2017-06-29

Applicant: BorgWarner Ludwigsburg GmbH

Inventor： Thomas Holzschuh ,  Hans-Peter Etzkorn ,  Peter Schaefer

IPC: H01T13/44 ,  H01T13/20 ,  F23Q3/00 ,  F02P23/04 ,  H01F38/12 ,  F02P3/01 ,  H01T19/00

CPC classification number: H01T13/44 ,  F02P3/01 ,  F02P23/04 ,  F23Q3/006 ,  H01F38/12 ,  H01T13/20 ,  H01T15/00 ,  H01T19/00 ,  H02M3/285 ,  H02M3/3372 ,  H02M2001/0077 ,  H02M2001/325

Abstract: Described is a supply circuit for a corona ignition device, with an input for connection to a direct voltage source, a first converter, a second converter, and an output for connecting a load. The two converters each generate an output voltage, which is provided on its secondary side and exceeds the input voltage. The two converters each contain a transformer that galvanically separates the primary side of the converter from its secondary side. At least one transistor switch is arranged between the input and primary side of the two converters for pulse width-modulation of the input voltage. The primary side of the second converter is connected in parallel with the primary side of the first converter, the secondary side of the second converter is connected in series with the secondary side of the first converter, the secondary sides of the two converters are each bridged in this series connection by at least one diode, so that an output voltage can be provided at the output of the supply circuit even given a failure of one of the two converters.

公开(公告)号：US20170251546A1

公开(公告)日：2017-08-31

申请号：US15325267

申请日：2015-07-13

Applicant: IMAGINEERING, INC.

Inventor： Yuji Ikeda ,  Seiji Kanbara

IPC: H05H1/52 ,  F02M57/06 ,  F02P23/04

CPC classification number: H05H1/52 ,  F02B23/08 ,  F02B2023/085 ,  F02M57/06 ,  F02P3/01 ,  F02P15/02 ,  F02P23/045 ,  H01T13/22 ,  H01T13/34 ,  H01T13/52

Abstract: An ignition device is provided, which can boost an electromagnetic wave supplied by a resonance structure, and cause a discharge by enhancing a potential difference between a discharge electrode and a ground electrode, and even though such a structure of the ignition device, a downsize and a thickness reduction, specifically, the thickness reduction can be achieved. On a main surface of a rectangular insulting substrate (2), an input electrode (3), a coupling electrode (4), a discharge electrode (6), and a ground electrode (7), are provided. The input electrode (3) is connected to an outside terminal on one shorter side. The coupling electrode (4) is capacity-coupled with the input electrode (3). The discharge electrode (6) is connected to the coupling electrode (4) on the other shorter side through a coupling line (5). The ground electrode (7) is, on both longer sides of the main surface of the rectangular insulating substrate (2), capacity-coupled with the coupling electrode (4) and capacity-coupled with the coupling line (5), and extended to the other shorter side. A resonance circuit includes a capacitor constituted by the capacity coupling and an inductor constituted by the coupling line (5). Thereby, the electromagnetic wave supplied from the outside terminal into the input electrode is resonated, a potential difference between the discharge electrode (6) and the ground electrode (7) is enhanced, and then, a discharge is caused.

公开(公告)号：US20170214222A1

公开(公告)日：2017-07-27

申请号：US15470552

申请日：2017-03-27

Applicant: Serge V. Monros ,  David G. Yurth

Inventor： Serge V. Monros ,  David G. Yurth

IPC: H01T13/40 ,  H01T13/28 ,  F02P23/00

CPC classification number: H01T13/40 ,  F02P3/01 ,  F02P7/03 ,  F02P9/007 ,  F02P23/00 ,  F02P23/04 ,  H01T13/28 ,  H01T13/38 ,  H01T13/39 ,  H01T13/50 ,  H01T15/00 ,  H05H1/52

Abstract: An ignition plug wire for an internal combustion engine has an elongated conductor with a programmable capacitor module disposed in-line with the elongated conductor. The programmable capacitor module is configured to step up or convert the ignition voltage normally supplied by an ignition coil to a plasma voltage. An inventive ignition plug if configured such that the anode enclosed within the insulator includes or is replaced by a voltage converting module designed to convert the ignition voltage into a plasma voltage. The voltage converting module consists of a semiconductor circuit, a composite semiconductor material, or a capacitor.

公开(公告)号：US20170167464A1

公开(公告)日：2017-06-15

申请号：US15444112

申请日：2017-02-27

Applicant: Transient Plasma Systems, Inc.

Inventor： Jason M. Sanders ,  Daniel Singleton ,  Andras Kuthi ,  Martin A. Gundersen

IPC: F02P9/00 ,  F02P23/04 ,  F02P3/08

CPC classification number: F02P3/0838 ,  F02P3/01 ,  F02P3/02 ,  F02P3/08 ,  F02P7/04 ,  F02P9/007 ,  F02P15/10 ,  F02P23/04 ,  H01T13/50

Abstract: A system and method for providing multiple fast rising pulses to improve performance efficiency. In one approach, multiple fast rising pulse power is employed to improve fuel efficiency and power of an engine. The system and method can involve a transient plasma plug assembly intended to replace a traditional spark plug. Alternatively, an approach involving a pulse generator and a high voltage pulse carrying ignition cable is contemplated.

公开(公告)号：US09651016B2

公开(公告)日：2017-05-16

申请号：US14426514

申请日：2013-09-12

Applicant: Robert Bosch GmbH

Inventor： Thomas Pawlak ,  Tim Skowronek

IPC: F02P7/03 ,  H01T15/00 ,  F02P3/01 ,  F02P15/10

CPC classification number: F02P7/03 ,  F02P3/01 ,  F02P15/10 ,  H01T15/00

Abstract: An ignition system includes: a step-up transformer having a primary side and a secondary side; an electrical energy source configured to be selectably connected to the primary side; a spark gap which is configured to guide a current transferred by the step-up transformer to the secondary side. The step-up transformer has a bypass for transferring electrical energy from the electrical energy source to the secondary side. The ignition system is configured to couple electrical energy in series or in parallel to the secondary side of the high voltage generator for the purpose of maintaining an ignition spark as an electrical voltage in the form of a controlled pulse sequence, e.g., within the kilo-hertz range.

公开(公告)号：US09638157B2

公开(公告)日：2017-05-02

申请号：US14272560

申请日：2014-05-08

Applicant: West Virginia University

Inventor： James E. Smith ,  Franz A. Pertl

IPC: F02P23/00 ,  H01P7/04 ,  F02P9/00 ,  F02P23/04 ,  H01T13/50 ,  H01J37/32 ,  F02P3/01

CPC classification number: F02P9/007 ,  F02P3/01 ,  F02P23/045 ,  H01J37/32091 ,  H01T9/00 ,  H01T13/50 ,  H01T19/00

Abstract: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

公开(公告)号：US09551314B2

公开(公告)日：2017-01-24

申请号：US14662335

申请日：2015-03-19

Applicant: Mitsubishi Electric Corporation

Inventor： Nobuyuki Tada ,  Yuusuke Naruse

IPC: F02P3/04 ,  H01T15/00 ,  F02P3/02 ,  F02P3/01 ,  F02P9/00 ,  H01T13/00

CPC classification number: F02P3/04 ,  F02P3/01 ,  F02P3/02 ,  F02P3/0407 ,  F02P9/007 ,  H01T13/00 ,  H01T15/00

Abstract: In an internal combustion engine ignition coil apparatus, a high-voltage supplying portion has: a protector that is bonded to an ignition coil main body, an electrical conductor, and a resistor that is connected in series between the ignition coil main body and the electrical conductor, and that reduces conductive noise. An electromagnetic wave absorber that shields radiated noise that is generated in the high-voltage supplying portion is mounted to an engine block so as to surround the protector and the resistor. An end surface of the resistor near the ignition coil main body is disposed so as to be aligned with an end surface of the electromagnetic wave absorber near the ignition coil main body.

Abstract translation: 在内燃机点火线圈装置中，高压供给部具有：点火​​线圈主体，电导体和串联连接在点火线圈主体与电气线圈之间的电阻器的保护器 导体，并降低导电噪声。 将在高压供给部中产生的辐射噪声进行屏蔽的电磁波吸收体安装在发动机缸体上，以包围保护器和电阻器。 点火线圈主体附近的电阻器的端面配置成与点火线圈主体附近的电磁波吸收体的端面对准。

公开(公告)号：US09534558B2

公开(公告)日：2017-01-03

申请号：US13982452

申请日：2012-01-10

Applicant: Yuji Ikeda ,  Shigeo Nomura ,  Yoshiaki Nishijima

Inventor： Yuji Ikeda ,  Shigeo Nomura ,  Yoshiaki Nishijima

IPC: F02D43/04 ,  F02D41/40 ,  F02P3/01 ,  F02P23/04 ,  F02D35/02 ,  F02D41/30 ,  F02P5/153 ,  F02P9/00 ,  F02B23/10 ,  F02B23/08

CPC classification number: F02D43/04 ,  F02B23/101 ,  F02B2023/085 ,  F02D35/023 ,  F02D35/028 ,  F02D41/3041 ,  F02D41/403 ,  F02D2200/1002 ,  F02D2200/101 ,  F02P3/01 ,  F02P5/153 ,  F02P9/007 ,  F02P15/02 ,  F02P23/045 ,  Y02T10/44

Abstract: In a compression ignition internal combustion engine 20that generates electromagnetic wave plasma by emitting electromagnetic waves to a combustion chamber 21 during a period of a preceding injection, a control device 10 for internal combustion engine controls a fuel injection device 24 to perform, before a main injection, a preceding injection less in injection quantity than the main injection, while controlling a plasma generation device 30 to generate electromagnetic plasma by emitting electromagnetic waves to the combustion chamber 21 during the period of the preceding injection. The control device 10 controls a condition of heat production due to combustion of fuel from the main injection by controlling the amount of energy of the electromagnetic waves emitted to the combustion chamber 21 during the period of the preceding injection according to the operating condition of the internal combustion engine main body 22.

Abstract translation: 在压缩点火式内燃机20中，通过在前一次喷射期间向燃烧室21发射电磁波而产生电磁波等离子体，内燃机用控制装置10控制燃料喷射装置24，在主喷射 ，其中喷射量比主喷射少的喷射次数在控制等离子体产生装置30的同时通过在前一喷射期间向燃烧室21发射电磁波来产生电磁等离子体。 控制装置10通过控制在前一次喷射期间发射到燃烧室21的电磁波的能量根据内部的运行状态来控制由于来自主喷射的燃料的燃烧引起的热产生的状况 内燃机主体22。