公开(公告)号：US20240133350A1

公开(公告)日：2024-04-25

申请号：US18546559

申请日：2022-02-16

Applicant: Robert Bosch GmbH

Inventor： Alexander Eichhorn ,  Alexander Hettinger

IPC: F02F1/24 ,  F02B19/12 ,  F02D41/02 ,  F02P5/15 ,  F02P15/02

CPC classification number: F02F1/242 ,  F02B19/12 ,  F02D41/0255 ,  F02P5/1504 ,  F02P15/02

Abstract: The present disclosure relates to an internal combustion engine comprising at least one cylinder, four charge-exchange points per cylinder, wherein a first and a second charge-exchange port are each an inlet port, and wherein a third and a fourth charge-exchange port are each an outlet port, also comprising one spark plug and one prechamber spark plug per each cylinder.

公开(公告)号：US11859591B2

公开(公告)日：2024-01-02

申请号：US18170005

申请日：2023-02-16

Applicant: Maserati S.p.A.

Inventor： Marco Fabbri ,  Filippo Carra ,  Lorenzo Paolucci ,  Simone Ferrante ,  Francesco Marcigliano

IPC: F02P5/15 ,  F02P15/02 ,  F02P5/153

CPC classification number: F02P5/153 ,  F02P15/02

Abstract: In a gasoline internal combustion engine having a first and second spark plugs for each cylinder, associated, respectively, with a combustion pre-chamber and with a combustion chamber, engine crank angle of ignition (ECAI) of the first and second spark plugs are controlled as a function of engine load and engine rotation speed, and as a function of a required value of torque delivered by the engine, referring to a single normalized reference surface, which is the same for any operating point of the engine, and which supplies efficiency of the engine as a function of a difference between ECAI of the first spark plug and an optimal value of this angle at which the efficiency becomes maximum, and as a function of a difference between the ECAI of the second spark plug and an optimal value of this angle at which the efficiency becomes maximum.

公开(公告)号：US11519348B2

公开(公告)日：2022-12-06

申请号：US16675600

申请日：2019-11-06

Applicant: Cummins Inc.

Inventor： J. Steven Kolhouse ,  David J. Stroh ,  Daniel J. O'Connor

IPC: F02M26/42 ,  F02D41/14 ,  F02P15/02 ,  H01T13/20 ,  F02B75/20 ,  F02D41/00 ,  F02M26/29 ,  F02B75/18

Abstract: One embodiment is a system comprising an internal combustion engine having one or more non-dedicated cylinders and one or more dedicated EGR cylinders configured to provide EGR to the engine via an EGR loop, a first spark plug coupled to each of the one or more non-dedicated cylinders, and a second spark plug coupled to each of the one or more dedicated EGR cylinders, wherein the second spark plug has a physical or dimensional characteristic that is different from the first spark plug. In certain forms each of the non-dedicated cylinders has only one of a first type of spark plug and each of the dedicated EGR cylinders has only one of a second type of spark plug. One or more of the characteristics that may vary between the first and second types of spark plugs include spark gap, electrode diameter, heat range, and ion sensing capability.

公开(公告)号：US11512677B1

公开(公告)日：2022-11-29

申请号：US17689369

申请日：2022-03-08

Applicant: Qun Wei ,  William P Attard ,  Shawali Chaudhury

Inventor： Qun Wei ,  William P Attard ,  Shawali Chaudhury

IPC: F02P15/08 ,  F02P23/04 ,  F02P17/12 ,  F02P5/15 ,  F02P15/02

Abstract: A combustion control system and method for a turbulent jet ignition engine is presented. A controller is configured to receive a torque request, determine a target spark stagger based on a first spark from a first ignition device and a second spark from a second ignition device, determine an adjusted maximum brake torque (MBT) based on the spark stagger, determine a delta spark based on a difference between the adjusted MBT and an actual leading spark from the first and second ignition devices, determine a torque efficiency based on the delta spark, estimate an actual torque, and command a first and a second spark timing from the first and second ignition devices to satisfy the torque request.

公开(公告)号：US11441529B1

公开(公告)日：2022-09-13

申请号：US16188348

申请日：2018-11-13

Applicant: Warren Engine Company, Inc.

Inventor： Gregory B. Powell ,  James C. Warren ,  William Vince Meyers, Jr.

IPC: F02P15/00 ,  F02P15/02 ,  F02B75/02 ,  F02B75/28

Abstract: A four-stroke opposed-piston engine contains a cylinder having a periphery and a combustion chamber and an ignition system, wherein the ignition system is fixed to the cylinder periphery and at least partially contained within the combustion chamber. During combustion, the ignition system is adapted to locate a spark within a fuel-rich predetermined region of the combustion chamber.

公开(公告)号：US10662893B1

公开(公告)日：2020-05-26

申请号：US15650844

申请日：2017-07-14

Applicant: Warren Engine Company, Inc.

Inventor： Gregory B. Powell ,  James C. Warren

IPC: F02F3/26 ,  F02B75/02 ,  F02B75/28 ,  F02P15/00 ,  F02P15/02

Abstract: An opposed-piston engine contains opposed pistons wherein each piston has a piston face containing a recess. The recesses formed in the piston faces define a combustion chamber when contained within a cylinder. An ignition system is at least partially contained within the combustion chamber to enhance the combustion efficiency of a fuel-air mixture within the combustion system.

公开(公告)号：US10385819B2

公开(公告)日：2019-08-20

申请号：US15796339

申请日：2017-10-27

Applicant: MARSHALL ELECTRIC CORP.

Inventor： Thomas C. Marrs ,  Stephen P. Barlow

IPC: F02P5/145 ,  F02P15/08 ,  F02P3/00 ,  H01T15/00 ,  F02P3/08 ,  F02P15/02

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：US20170226982A1

公开(公告)日：2017-08-10

申请号：US15414828

申请日：2017-01-25

Applicant: MIYAMA, INC.

Inventor： Katsuaki Minami

IPC: F02P15/02

CPC classification number: F02P15/02 ,  F02P15/08 ,  H01T13/22

Abstract: A multipoint spark plug for igniting an air-fuel mixture in a combustion chamber of an engine includes a main body portion that is formed in a flattened shape and inserted into an insertion hole of the engine such that a tip end portion thereof opposes the combustion chamber, a pair of side electrodes provided via a gap in a lengthwise direction of the tip end portion, and at least one intermediate electrode provided in the gap between the pair of side electrodes such that a plurality of ignition gaps are formed in the lengthwise direction of the tip end portion.

公开(公告)号：US09541051B2

公开(公告)日：2017-01-10

申请号：US14538878

申请日：2014-11-12

Applicant: SUZUKI MOTOR CORPORATION

Inventor： Takuya Eguchi

IPC: F01N3/00 ,  F02P15/02 ,  F02D41/08 ,  F02D41/14 ,  F02P5/04 ,  F02P15/08 ,  F02D37/02 ,  F01N3/30 ,  F01N9/00 ,  F02P5/15

CPC classification number: F02P15/02 ,  F01N3/30 ,  F01N9/00 ,  F02D37/02 ,  F02D41/08 ,  F02D41/1454 ,  F02D2200/0404 ,  F02D2200/101 ,  F02P5/045 ,  F02P5/1508 ,  F02P15/08 ,  Y02T10/20 ,  Y02T10/46 ,  Y02T10/47

Abstract: An ignition control device for an engine provided with ignition plugs for each cylinder. The ignition control device includes a sensor that detects a signal that determines whether the engine is in an idling state or not, and an ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the ignition plugs to be ignited if the engine is in a state other than the idling state.

Abstract translation: 一种用于每个气缸设置有火花塞的发动机的点火控制装置。 点火控制装置包括检测判定发动机是否处于怠速状态的信号的传感器以及基于来自传感器的信号来判定发动机是否处于怠速状态的点火控制单元，并且控制 如果发动机处于怠速状态，则同时点燃火花塞，并且如果发动机处于怠速状态以外的状态，则控制火花塞的一部分点燃。

公开(公告)号：US09334829B2

公开(公告)日：2016-05-10

申请号：US13603625

申请日：2012-09-05

Applicant: Toru Kisaichi ,  Hitoshi Yokotani ,  Hiroshi Sotani

Inventor： Toru Kisaichi ,  Hitoshi Yokotani ,  Hiroshi Sotani

IPC: F02P15/02 ,  F02F1/24

CPC classification number: F02F1/242 ,  F02P15/02

Abstract: An internal combustion engine can include a first ignition plug disposed on the inner side of a range surrounded by a plurality of intake valves and a plurality of exhaust valves with a cylinder head viewed in parallel to a cylinder axial line and standing uprightly along the cylinder axial line. A second ignition plug is inclined with respect to the cylinder axial line on the outer side of the range. The second ignition plug is disposed on the opposite side to a valve driving mechanism with respect to the cylinder axial line on the outer side of the range.

Abstract translation: 内燃机可以包括设置在由多个进气门包围的范围的内侧的第一火花塞和具有与气缸轴线平行地观察的气缸盖的多个排气门，并且沿着气缸的轴向直立地竖立 线。 第二火花塞相对于该范围外侧的气缸轴线倾斜。 第二火花塞相对于该范围的外侧上的气缸轴线设置在与阀驱动机构相反的一侧。