公开(公告)号：US11692523B2

公开(公告)日：2023-07-04

申请号：US16974358

申请日：2020-11-03

Applicant: Clarence Huckaby

Inventor： Clarence Huckaby

IPC: F02P5/15 ,  F02P15/00 ,  G01L23/22 ,  F02P5/152

CPC classification number: F02P5/1523 ,  F02P15/001

Abstract: An engine-knock controlling system for a carburetor-based engine includes one or more cylinders in which combustion occurs, wherein the system also includes a plurality of knock sensors coupled to an engine block, a first wiring harness, a first control unit, a second wiring harness, and a second control unit or an intermediate control unit, or a second control unit and intermediate control unit. The knock sensor(s) detects threatening engine-knock noise as an audible signal and transmits a signal through the wiring harnesses and control units to generate an ignition retarding action to correct the engine misfire and eliminate the knock/ping. Once the engine knock event is resolved, the processor of the first control unit transmits via the second wiring harness a signal to the second control unit or to the intermediate control unit, or to the second control unit and the intermediate control unit, to allow full-advance of ignition timing.

公开(公告)号：US11056858B2

公开(公告)日：2021-07-06

申请号：US16931897

申请日：2020-07-17

Applicant: DENSO CORPORATION

Inventor： Yoshihiro Izumi ,  Masamichi Shibata ,  Kanechiyo Terada ,  Tetsuya Miwa

IPC: H01T13/32 ,  F02P15/00 ,  F02P3/02

Abstract: A spark plug has a housing of a cylindrical shape and an insulator supported to an inside of the housing. A channel part is formed at a distal end side of the housing. The channel part is open so that the inside of the housing communicates with an outside of the housing through the channel part. The channel part has a channel bottom having a tapered shape oblique relative to a plug central axis. An overall channel bottom is arranged in the housing closer to a proximal end side than to the distal end side of the housing.

公开(公告)号：US10819194B2

公开(公告)日：2020-10-27

申请号：US16398557

申请日：2019-04-30

Applicant: Honda Motor Co., Ltd.

Inventor： Andrew Bejcek ,  Christopher D. Meeks

IPC: H02K11/35 ,  A01D69/02 ,  F02N11/04 ,  A01D34/00 ,  H02K51/00 ,  H02K7/18 ,  H02K5/04 ,  F02P15/00

Abstract: A power tool is provided. The power tool includes an internal combustion engine and an integrated device coupled to the internal combustion engine. The internal combustion engine includes a flywheel or another rotating component. The integrated device is enclosed in a housing and is coupled adjacent to either the flywheel or a rotating component. The integrated device includes a printed circuit board with a wireless communications module and a power generation portion which receives power wirelessly from the internal combustion engine.

公开(公告)号：US10770868B1

公开(公告)日：2020-09-08

申请号：US16841991

申请日：2020-04-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsuya Gozawa

IPC: F02B19/12 ,  F02B19/18 ,  H01T13/54 ,  H01T13/20 ,  F02P13/00 ,  F02P15/00 ,  H01T13/34

Abstract: A spark plug wherein both pre-ignition and misfires are suppressed. The spark plug includes a center electrode; a ground electrode; a cylindrical insulator; a metal shell that accommodates the insulator therein; and a cover portion that covers a front end portion of the center electrode and a facing portion of the ground electrode to form a pre-chamber. The insulator includes an outer peripheral surface exposed to the pre-chamber, the cover portion includes a portion exposed to the pre-chamber, and the metal shell includes a portion exposed to the pre-chamber. When a surface area of the outer peripheral surface is a first surface area A (mm2), and a total surface area of the portion of the cover portion and the portion of the metal shell is a second surface area B (mm2), the spark plug satisfies a relational expression 1:0.10

公开(公告)号：US10738615B1

公开(公告)日：2020-08-11

申请号：US16507997

申请日：2019-07-10

Applicant: Genesis Advanced Technology Inc.

Inventor： James Brent Klassen

IPC: F01C1/08 ,  F01C1/10 ,  F01C21/08 ,  F02B55/02 ,  F02P15/00

Abstract: A piston is arranged to move in a cylinder to define a variable volume chamber, and can expand in two directions under the influence of pressure in the variable volume chamber to provide sealing against the cylinder. The piston can comprise a primary foot and a secondary foot arranged to move relative to each other in a first direction. The primary foot and the secondary foot can each comprise plural segments arranged to move relative to each other in a second direction. The piston may be suitable for use in an inner rotor, where it forms the end of a projection of the inner rotor and fully exits and reenters the cylinders.

公开(公告)号：US10697419B2

公开(公告)日：2020-06-30

申请号：US16079120

申请日：2017-02-13

Applicant: DENSO CORPORATION

Inventor： Daisuke Tanaka ,  Shota Kinoshita ,  Noriaki Nishio ,  Satoru Nakayama

IPC: F02P3/05 ,  F02P15/00 ,  H01T13/20 ,  F02P9/00 ,  H01T13/14 ,  F02P15/10 ,  F02P3/01 ,  F02P7/03 ,  F02P17/12 ,  F02P3/04

Abstract: An ignition control apparatus applied to an internal combustion engine including a spark plug includes an in-cylinder pressure acquisition section, a frequency signal transmitting section which transmits a frequency signal having a predetermined frequency to a switching element, and a weak discharge generating section which causes the frequency signal to be transmitted during an intake stroke and controls the frequency signal such that a weak discharge is generated at the spark plug a plurality of times. The weak discharge generating section controls the frequency signal so as to cause a duty ratio of the switching element to be changed in accordance with the in-cylinder pressure, such that the frequency of generating weak discharges during a time period in which the frequency signal is transmitted becomes higher than a predetermined frequency.

公开(公告)号：US10677143B2

公开(公告)日：2020-06-09

申请号：US16086295

申请日：2017-11-20

Applicant: Mazda Motor Corporation

Inventor： Yuichiro Tsumura

IPC: F02B3/02 ,  F02D41/00 ,  F02D41/40 ,  F02P5/04 ,  F02P5/145 ,  F02B23/10 ,  F02D41/30 ,  F02P15/00 ,  F02P5/155 ,  F02D35/02 ,  F02D37/02 ,  F02B1/04 ,  F02B1/12 ,  F02D41/38

Abstract: A compression self-ignition engine performs a SI combustion in which an air-fuel mixture is combusted due to flame propagation triggered by spark ignition, and a CI combustion in which the air-fuel mixture is combusted due to self-ignition induced by the flame propagation. An ECU comprises a first control means for controlling a SI ratio serving as an index relating to a ratio of a heat amount generated in the SI combustion with respect to a total heat amount generated in the SI and CI combustions or a heat amount generated in the CI combustion; and a second control means for controlling an in-cylinder temperature before the SI combustion. The ECU is configured to change a combustion state of each of the SI and CI combustions by both the first and second control means according to the operating state of the engine.

公开(公告)号：US20200166003A1

公开(公告)日：2020-05-28

申请号：US16618074

申请日：2018-05-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Satoshi IMAMURA ,  Masaki FUKUMA ,  Yasushi NAKAHARA ,  Atsushi INOUE ,  Kota MATSUMOTO ,  Yoshiharu UEKI ,  Michiharu KAWANO ,  Yuya HONDA ,  Kento ONISHI

IPC: F02F3/26 ,  F02M61/14 ,  F02B23/10 ,  F02P15/00

Abstract: A structure of a combustion chamber for an engine includes a crown surface of a piston, a combustion chamber ceiling surface, an injector and an ignition plug provided on the combustion chamber ceiling surface, and an intake opening and an exhaust opening opened in the combustion chamber ceiling surface. A side where the intake opening is opened is defined as an intake port side, and a side where the exhaust opening is opened is defined as an exhaust port side. An ignition portion of the ignition plug is disposed on the intake port side. The ignition plug is ignited at a timing after the piston passes a compression top dead center. The injector is disposed on the center portion, and is configured to inject fuel toward the exhaust port side. A cavity is provided on the crown surface. A reverse squish flow generation portion is provided in the combustion chamber.

公开(公告)号：US10578032B2

公开(公告)日：2020-03-03

申请号：US15622335

申请日：2017-06-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihiro Okada ,  Fumitsugu Tsuru

IPC: F02D13/02 ,  F02B37/18 ,  F01L1/047 ,  F01L1/344 ,  F02B1/02 ,  F02B1/12 ,  F02B37/22 ,  F02D41/00 ,  F02D41/22 ,  F02D41/30 ,  F02P15/00 ,  F02D41/38

Abstract: An electronic control unit of an internal combustion engine is configured to control the fuel injection valve and to control a spark plug if necessary such that fuel is combusted by pre-mixture compression ignition combustion or flame propagation combustion. The electronic control unit is configured to perform homogeneous combustion in a flame ignition operation range when switching failure has not occurred, the homogeneous combustion being combustion in which fuel homogeneously diffused into the combustion chamber is ignited using the spark plug and is combusted by flame propagation combustion. The electronic control unit is configured to perform spray-guided stratified combustion in a second operation range when the switching failure has occurred, the spray-guided stratified combustion being combustion in which fuel in the fuel injection path is ignited using the spark plug and is combusted by the flame propagation combustion.

公开(公告)号：US10476239B2

公开(公告)日：2019-11-12

申请号：US15010353

申请日：2016-01-29

Applicant: Meggitt (France)

Inventor： Mickael Girard ,  Gael Gaborel

IPC: H01T15/00 ,  F02C7/266 ,  F02P15/00 ,  F02P1/08

Abstract: A generator including a source of electric energy connected to means for generating sparks between the electrodes of an ignition spark plug, is characterized in that it comprises a first power portion including first means forming a capacitor for storing energy in series with first means forming a diode, wherein the first means forming a capacitor are also connected to the ignition spark plug through a gas spark gap and at least one second triggering portion including second means forming an energy storage capacitor in series with second means forming a diode, wherein the second means forming a capacitor are connected through at least one controlled semiconductor switching unit, to a primary winding of a voltage step-up transformer for which one secondary winding is connected in series with the gas spark gap between the first means forming a capacitor and the ignition spark plug.