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112 条记录 (耗时 0.014 秒)

    ENGINE SYSTEM
    1.
    发明公开
    ENGINE SYSTEM 审中-公开

    公开(公告)号：EP4124743A1

    公开(公告)日：2023-02-01

    申请号：EP22184448.3

    申请日：2022-07-12

    申请人： MAZDA MOTOR CORPORATION

    发明人： ONO, Ryohei ,  HARADA, Yuji ,  UCHIDA, Kenji

    IPC分类号： F02D37/02 ,  F02B19/12 ,  F02D41/00 ,  F02P5/15 ,  F02P15/02 ,  F02P15/08

    摘要： An engine system is provided, which includes a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, an exhaust gas recirculation (EGR) device and a control device. In a specific range where EGR is performed, the ignition devices are controlled so that a subignition timing is retarded from a main ignition timing, and an ignition phase difference that is a retard amount of the subignition timing from the main ignition timing becomes larger under a high EGR condition than a low EGR condition, the EGR conditions being conditions in the specific range where engine speeds are the same and EGR rates are different, and the high EGR condition being larger in the EGR rate than the low EGR condition.

    ENGINE SYSTEM
    2.
    发明公开
    ENGINE SYSTEM 审中-公开

    公开(公告)号：EP4124741A1

    公开(公告)日：2023-02-01

    申请号：EP22183556.4

    申请日：2022-07-07

    申请人： MAZDA MOTOR CORPORATION

    发明人： ONO, Ryohei ,  HARADA, Yuji ,  UCHIDA, Kenji

    IPC分类号： F02D37/02 ,  F02B19/12 ,  F02P5/15 ,  F02P15/02 ,  F02P15/08

    摘要： An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a controller electrically connected to the injector, the main spark plug and the subspark plug. When an engine speed is above a given reference engine speed, the controller controls, in a low-load range below a given reference load, the ignition devices so that the subignition is performed after the main ignition, and the controller controls, in a high-load range exceeding the reference load, the ignition devices so that only the subignition is performed, or so that the main ignition is performed at the same timing as or after the subignition.

    BOUGIE D'ALLUMAGE POUR MOTEUR À ALLUMAGE COMMANDÉ
    3.
    发明公开
    BOUGIE D'ALLUMAGE POUR MOTEUR À ALLUMAGE COMMANDÉ 审中-公开

    公开(公告)号：EP3985813A1

    公开(公告)日：2022-04-20

    申请号：EP21202510.0

    申请日：2021-10-13

    申请人： Renault s.a.s

    发明人： Besancon, Thomas ,  LAURENT, Jean-Marc

    IPC分类号： H01T13/54 ,  F02P15/08 ,  H01T13/22 ,  H01T13/32 ,  H01T13/46 ,  F02P3/02 ,  F02P15/02

    摘要： Bougie d'allumage pour moteur à allumage commandé.
    Bougie d'allumage (10) pour moteur à allumage commandé comprenant :
    - une première électrode (1),
    - une deuxième électrode (2),
    - une troisième électrode (13),
    - une quatrième électrode (23),
    - un premier espace inter-électrodes (14) situé entre la première électrode (1) et la troisième électrode (13),
    - un deuxième espace inter-électrodes (24) situé entre la deuxième électrode (2) et la quatrième électrode (23), et
    - un culot (8), notamment en partie inférieure de la bougie,
    les troisième et quatrième électrodes (13, 23) faisant partie du culot (8).

    IGNITION CONTROL AND SYSTEM FOR AN ENGINE OF AN UNMANNED AERIAL VEHICLE (UAV)
    6.
    发明公开
    IGNITION CONTROL AND SYSTEM FOR AN ENGINE OF AN UNMANNED AERIAL VEHICLE (UAV) 审中-公开
    ZÜNDREGELUNGUND系统FÜRDEN MOTOR EINES UNBEMANNTEN LUFTFAHRZEUGS（UAV）

    公开(公告)号：EP3146197A1

    公开(公告)日：2017-03-29

    申请号：EP15809949.9

    申请日：2015-06-12

    申请人： Orbital Australia PTY Ltd.

    发明人： CATHCART, Goeffrey Paul ,  BUTERS, Nicolass Harry

    IPC分类号： F02P15/00 ,  F02P15/02 ,  F02P9/00

    CPC分类号： F02P15/02 ,  F02C7/266 ,  F02D2041/227 ,  F02D2400/08 ,  F02P3/0407 ,  F02P3/0807 ,  F02P5/1502 ,  F02P9/007 ,  F02P15/08 ,  F02P17/00 ,  Y02T10/46

    摘要： The ignition system (10) of an engine (particularly for a UAV) has a primary (10a), and a secondary (10b) ignition system to provide redundancy for ‘get you home’ capability should the primary ignition system fail. The secondary ignition provides a lower energy or shorter duration spark than the higher energy or longer duration sparking of the primary ignition system, and is retarded relative to primary sparking. Timing of the secondary sparking can be advanced in the event of primary sparking failure. Fuelling strategy can be shifted from a leaner stratified charge to a richer homogenous charge when relying just on the secondary ignition system for ignition. The secondary ignition system can be of a lower spark energy and/or duration than the primary ignition system, avoiding the cost, complexity and weight of replicating the primary ignition system, and to improve packaging within the engine housing, particularly within the limited payload and space limits of a UAV.

    摘要翻译： 发动机（特别是无人机）的点火系统（10）具有主要（10a）和次级（10b）点火系统，以在主点火系统发生故障时提供冗余以“让您回家”的能力。 次要点火提供比初级点火系统的较高能量或更长持续时间的火花更低的能量或更短持续时间的火花，并且相对于主火花发生延迟。 在发生主火花故障的情况下，二次火花的定时可以提前。 当依靠二次点火系统进行点火时，加油策略可以从更精细的分层装料转移到更丰富的均质装料。 次要点火系统可以具有比初级点火系统更低的火花能量和/或持续时间，避免了复制初级点火系统的成本，复杂性和重量，并且改进发动机壳体内的包装，特别是在有限的有效载荷内， 无人机的空间极限。