公开(公告)号：US10302061B2

公开(公告)日：2019-05-28

申请号：US15572891

申请日：2016-05-10

Applicant: DENSO CORPORATION

Inventor： Kanechiyo Terada

IPC: F02P3/04 ,  F02P15/10 ,  F02P15/08 ,  F02P15/00 ,  H01F38/12 ,  F02P9/00 ,  H01T15/00

Abstract: An ignition apparatus for an internal combustion engine which is capable of having a high-degree of ignition performance and being reduced in size is provided. The ignition apparatus includes the spark plug mounted in an end of the plug hole formed in the internal combustion engine, the first ignition coil, the second ignition coil, and the control portion. The first ignition coil includes the primary coil and the secondary coil and has a secondary side electrically connected to the spark plug. The second ignition coil includes the primary coil and the secondary coil and is connected to the spark plug in parallel to the first ignition coil. The control portion controls energization of the first ignition coil and the second ignition coil. The secondary voltage developed at the second ignition coil is lower in level than that developed at the first ignition coil. The control portion works to create the secondary voltage at the first ignition coil and then create the secondary voltage at the second ignition coil to have the spark plug continue to discharge.

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：US10132287B2

公开(公告)日：2018-11-20

申请号：US15830441

申请日：2017-12-04

Applicant: DENSO CORPORATION

Inventor： Kenji Hattori ,  Ippei Funato

IPC: F02P15/08 ,  F02P5/15 ,  F02D41/14 ,  F02P3/05 ,  F02D41/00

Abstract: In an ignition control system, a primary current control unit performs discharge generation control one or more times during a single combustion cycle. The discharge generation control allows a spark plug to generate a discharge spark. A parameter calculating unit successively calculates a parameter correlated with energy of a discharge spark. An energy density calculating unit successively calculates energy density that is energy per unit length of the discharge spark. When the energy density is greater than a predetermined value during a predetermined period after a primary current is interrupted during a single combustion cycle, an integrated value calculating unit calculates an integrated value by integrating the parameter during the predetermined period. The primary current control unit performs the discharge generation control again when the integrated value calculated by the integrated value calculating unit is less than a predetermined determination threshold.

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：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：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.

公开(公告)号：US09745946B2

公开(公告)日：2017-08-29

申请号：US12739918

申请日：2008-09-11

Applicant: Mario Maier ,  Bernhard Opitz ,  Hartwig Senftleben ,  Bernd Hilgenberg

Inventor： Mario Maier ,  Bernhard Opitz ,  Hartwig Senftleben ,  Bernd Hilgenberg

IPC: F02D28/00 ,  F02P15/08 ,  F02P3/05 ,  F02P9/00 ,  F02P15/10

CPC classification number: F02P15/08 ,  F02P3/051 ,  F02P9/002 ,  F02P15/10

Abstract: The invention relates to a device for controlling a multiple spark operation of an internal combustion engine, wherein an ignition transformer can be switched off and back on again for delivering or interrupting an ignition spark energy based on at least one current threshold. The invention proposes that the at least one current threshold be programmable.

公开(公告)号：US09719479B2

公开(公告)日：2017-08-01

申请号：US14733394

申请日：2015-06-08

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Kenichi Ishii

IPC: F02P3/045 ,  F02P3/04 ,  F02P15/08

CPC classification number: F02P3/0453 ,  F02P3/0442 ,  F02P15/08

Abstract: An ignition control device for an internal combustion engine can include an ignition coil supplying a discharge voltage to an ignition device of an ignition combustion engine, a voltage-controlled type semiconductor element connected to a primary side of the ignition coil and an ignition control section capable of repeating, multiple time in an ignition period, operations of turning ON and turning OFF of the voltage-controlled type semiconductor element by giving a gate signal to a gate of the voltage-controlled type semiconductor element. The ignition control section can include an active element that discharges gate charges accumulated on the gate of the voltage-controlled type semiconductor element upon turning OFF operation of the voltage-controlled type semiconductor element to the ground, and that is connected between the gate and a resistor at a side of the gate inserted in a gate wiring connected to the gate of the voltage-controlled type semiconductor element.