公开(公告)号：US20190128232A1

公开(公告)日：2019-05-02

申请号：US15796339

申请日：2017-10-27

Applicant: MARSHALL ELECTRIC CORP.

Inventor： Thomas C. MARRS ,  Stephen P. BARLOW

IPC: F02P5/145 ,  F02P3/00 ,  F02P15/08 ,  H01T15/00

CPC classification number: F02P5/145 ,  F02P3/005 ,  F02P3/01 ,  F02P3/045 ,  F02P3/08 ,  F02P5/1502 ,  F02P15/02 ,  F02P15/08 ,  F02P15/10 ,  F02P15/12 ,  F02P2017/121 ,  H01T15/00

Abstract: An ignition system for an internal combustion engine has a power source, a transformer having a first primary winding and a second primary winding and a secondary winding, a connector extending from the secondary winding so as to connect with a terminal of a spark plug, and a multi-strike circuit cooperative with the electronic spark timing circuit so as to fire the transformer with multiple strikes between the falling edge and the rising edge. A booster circuit is cooperative at the electronic spark timing circuit so as to collect and store energy from the power source while the electronic spark timing circuit fires the transformer. A delay circuit fires the transformer at a time subsequent to the falling edge and before the rising edge.

公开(公告)号：US20180241181A1

公开(公告)日：2018-08-23

申请号：US15897352

申请日：2018-02-15

Applicant: MIYAMA, INC.

Inventor： Katsuaki Minami

IPC: H01T13/46 ,  H01T13/08 ,  F02P15/08

CPC classification number: H01T13/462 ,  F02B2023/085 ,  F02F11/002 ,  F02P13/00 ,  F02P15/02 ,  F02P15/08 ,  H01T13/08 ,  H01T13/32 ,  H01T13/40

Abstract: A multipoint ignition device for igniting an air-fuel mixture in a combustion chamber of an engine includes: an insulating member formed in an annular shape such that an inner periphery thereof faces the combustion chamber; and a plurality of electrodes held on the insulating member so as to form a plurality of ignition gaps in a circumferential direction inside the combustion chamber, wherein the insulating member includes a plurality of divided insulating members formed in divided form, and the divided insulating member close to an intake valve of the engine has a higher thermal conductivity than the divided insulating member close to an exhaust valve of the engine.

公开(公告)号：US09995267B2

公开(公告)日：2018-06-12

申请号：US14783695

申请日：2014-04-11

Applicant: DENSO CORPORATION

Inventor： Yuuki Kondou ,  Masahiro Ishitani ,  Satoru Nakayama ,  Akimitsu Sugiura ,  Makoto Toriyama ,  Takashi Oono

IPC: F02P15/08 ,  F02P3/04 ,  F02P3/05 ,  F02P5/15 ,  F02P15/10

CPC classification number: F02P15/08 ,  F02P3/0435 ,  F02P3/05 ,  F02P5/15 ,  F02P5/1502 ,  F02P15/10 ,  Y02T10/46

Abstract: An ignition apparatus includes an adjuster. The adjuster adjusts, according to at least one of a primary voltage and a secondary voltage detected by a voltage detector, at least one of an application timing and an application level of auxiliary electrical energy to an ignition coil while main electrical energy is applied to a spark plug by the ignition coil. The application timing includes whether the auxiliary electrical energy is applied to the ignition coil.

公开(公告)号：US20180156179A1

公开(公告)日：2018-06-07

申请号：US15887439

申请日：2018-02-02

Applicant: Briggs & Stratton Corporation

Inventor： Robert J. Koenen ,  Andrew Paskov ,  Jason A. Hansen

IPC: F02P3/04 ,  F02P15/08 ,  F02P1/08

CPC classification number: F02P3/0407 ,  F02P1/083 ,  F02P5/1502 ,  F02P15/08 ,  Y02T10/46

Abstract: An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters.

公开(公告)号：US09951744B2

公开(公告)日：2018-04-24

申请号：US15165413

申请日：2016-05-26

Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

Inventor： Jeongung Hwang ,  Nicholas C. Polcyn ,  Jeremy Koscielny

IPC: F02P23/04

CPC classification number: F02P23/045 ,  F02P15/08 ,  F02P23/04

Abstract: An ignition device for an internal combustion engine includes optical focusing lenses, including a center optical focusing lens and satellite optical focusing lens. The center optical focusing lens focuses laser light from a laser generator to a center ignition point in a combustion chamber of a cylinder of the internal combustion engine. The satellite optical focusing lenses focus laser light from the laser generator to satellite ignition points in the combustion chamber of the cylinder of the internal combustion engine. The satellite optical focusing lenses are directionally angled away from the center optical focusing lens. A firing depth of the center ignition point is greater than a firing depth of the at least one satellite ignition point.

公开(公告)号：US09932955B2

公开(公告)日：2018-04-03

申请号：US15302540

申请日：2015-04-07

Applicant: DENSO CORPORATION

Inventor： Naoto Hayashi ,  Makoto Toriyama ,  Kaori Doi ,  Kenechiyo Terada ,  Kenta Kyouda ,  Satoru Nakayama

IPC: F02P3/045 ,  F02P3/05 ,  F02P9/00 ,  F02P15/08 ,  F02P3/08 ,  F02P15/10 ,  F02P5/15

CPC classification number: F02P3/045 ,  F02P3/0876 ,  F02P5/15 ,  F02P9/00 ,  F02P9/002 ,  F02P9/007 ,  F02P15/08 ,  F02P15/10

Abstract: An ignition apparatus inputs energy during a predetermined energy input period after the interruption of a primary electric current by an ignition switch and a discharge of an ignition plug caused by a secondary electric current. Moreover, the ignition apparatus includes a blow-off detection unit that detects, during the energy input period IGW after the start of the discharge by the ignition plug, occurrence of blow-off of the discharge. When the secondary electric current I2 drops below a blow-off detection electric current threshold value Ibo at a time instant tbo in a “second region” where it is impossible to perform a re-discharge after blow-off, the blow-off detection unit determines that blow-off has occurred and the ignition apparatus stops the energy input from an energy input unit to an ignition coil. By preventing unnecessary energy input, it is possible to suppress unnecessary electric power consumption and wear of electrodes of the ignition plug.

公开(公告)号：US20180073481A1

公开(公告)日：2018-03-15

申请号：US15262503

申请日：2016-09-12

Applicant: Caterpillar Inc.

Inventor： Jaswinder Singh ,  David M. Ginter

IPC: F02P15/00 ,  F02P17/12

CPC classification number: F02P15/006 ,  F02P5/1502 ,  F02P15/08 ,  F02P17/02 ,  F02P17/12 ,  F02P2017/121 ,  H01T13/40 ,  Y02T10/46

Abstract: An ignition device and strategies are provided for extending spark plug life and air-fuel mixture lean limits in natural gas engines while maintaining or improving the engine thermal efficiency. The ignition device may include a plug body extending between a terminal end and an electrode end, a plurality of electrode pairs radially disposed on the electrode end each having an inner electrode and an outer electrode and an insulating body electrically isolating each of the electrode pairs from one another and each of the inner electrodes from the outer electrodes.

公开(公告)号：US20170342956A1

公开(公告)日：2017-11-30

申请号：US15165413

申请日：2016-05-26

Applicant: DENSO International America, Inc. ,  DENSO CORPORATION

Inventor： Jeongung HWANG ,  Nicholas C. POLCYN ,  Jeremy KOSCIELNY

IPC: F02P23/04

CPC classification number: F02P23/045 ,  F02P15/08 ,  F02P23/04

Abstract: An ignition device for an internal combustion engine includes optical focusing lenses, including a center optical focusing lens and satellite optical focusing lens. The center optical focusing lens focuses laser light from a laser generator to a center ignition point in a combustion chamber of a cylinder of the internal combustion engine. The satellite optical focusing lenses focus laser light from the laser generator to satellite ignition points in the combustion chamber of the cylinder of the internal combustion engine. The satellite optical focusing lenses are directionally angled away from the center optical focusing lens. A firing depth of the center ignition point is greater than a firing depth of the at least one satellite ignition point.

公开(公告)号：US20170306918A1

公开(公告)日：2017-10-26

申请号：US15505159

申请日：2015-08-12

Applicant: IMAGINEERING, Inc.

Inventor： Yuji Ikeda

IPC: F02P23/04 ,  F02B43/10 ,  F02F1/24 ,  F02B11/00

CPC classification number: F02P23/045 ,  F02B11/00 ,  F02B23/08 ,  F02B43/10 ,  F02B2043/103 ,  F02F1/242 ,  F02P5/045 ,  F02P5/1502 ,  F02P5/152 ,  F02P13/00 ,  F02P15/02 ,  F02P15/08 ,  F02P23/04 ,  H01T13/00 ,  H01T13/44 ,  H01T13/50 ,  Y02T10/12 ,  Y02T10/125

Abstract: A compression-ignition type internal combustion engine that burns a gaseous fuel, improves an ignition performance not only at a center part of the combustion chamber but also at an outer edge part. The compression-ignition engine comprises an electromagnetic wave generator configured to generate an electromagnetic wave, a controller configured to control the electromagnetic wave generator, and a plasma generator comprising a boosting circuit that constitutes a resonator configured to boost the electromagnetic wave, a first electrode configured to receive an output from the boosting circuit, and a second electrode provided to a vicinity of the first electrode, and the plasma generator is configured such that the first electrode is extruded and exposed toward a combustion chamber of the internal combustion engine, and a plurality of plasma generators are provided.

公开(公告)号：US09765750B2

公开(公告)日：2017-09-19

申请号：US14647617

申请日：2013-11-26

Applicant: Advanced Fuel and Ignition Systems, Inc.

Inventor： Tod Ferguson ,  Ed Browalski ,  Ron Paul

IPC: F02P5/15 ,  F02P15/08 ,  F02P15/10

CPC classification number: F02P5/15 ,  F02P15/08 ,  F02P15/10 ,  Y02T10/46

Abstract: An ignition module, ignition system, and method for providing and generating at least two sparks in each cylinder in a single combustion cycle for RPMs over 3,000. The ignition module, system, and method is configured to detect misfires in a spark plug and take measures to alert a user of such misfires and cause an additional spark to occur prior to the completion of the cylinder's power stroke during its combustion cycle. The ignition module, system and method provides for continuous spark at high RPMs and is configured to reduce and/or eliminate engine misfire in excess of about 3,000 RPM for four stroke engines and up to 30,000 RPM for two stroke engines.