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112 条记录 (耗时 0.014 秒)

    ENGINE SYSTEM
    41.
    发明公开
    ENGINE SYSTEM 审中-公开

    公开(公告)号：EP4124746A1

    公开(公告)日：2023-02-01

    申请号：EP22181422.1

    申请日：2022-06-28

    申请人： MAZDA MOTOR CORPORATION

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

    IPC分类号： F02P15/02 ,  F02B19/12 ,  F02P5/15 ,  F02D41/40 ,  F02D37/02

    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 control device. In a low-speed high-load range, a fuel injection timing is set in compression stroke and the main ignition and the subignition are performed after the fuel injection timing, and the fuel injection timing under a low-speed condition becomes later than that under a high-speed condition, and the ignition devices are controlled so that the subignition timing is retarded from the main ignition timing and an ignition phase difference that is the retard amount of the subignition timing becomes larger under the low-speed condition than under the high-speed condition.

    ENGINE SYSTEM
    42.
    发明公开
    ENGINE SYSTEM 审中-公开

    公开(公告)号：EP4124742A1

    公开(公告)日：2023-02-01

    申请号：EP22183558.0

    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

    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 and the main spark plug and the subspark plug. In a low-load range where an engine load is below a given reference load, the controller controls the main spark plug and the subspark plug so that the subignition is performed after performing the main ignition, and the controller retards the timing of the subignition in a high-speed range where an engine speed is above a given reference engine speed, compared with a low-speed range below the reference engine speed.

    AN INTERNAL COMBUSTION ENGINE
    50.
    发明公开
    AN INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号：EP2007978A2

    公开(公告)日：2008-12-31

    申请号：EP07760035.1

    申请日：2007-04-03

    申请人： Cleeves Engines Inc.

    发明人： CLEEVES, James M.

    IPC分类号： F02B25/08 ,  F02B75/28 ,  F02N3/00 ,  F01L1/34 ,  F02P15/02 ,  F01M1/02

    CPC分类号： F02F1/14 ,  F01L5/06 ,  F01L7/00 ,  F01L7/04 ,  F01L9/02 ,  F01L2820/033 ,  F01P2003/021 ,  F02B25/08 ,  F02B75/28 ,  F02B75/282 ,  F02D13/0269 ,  F02D13/028 ,  F02D15/02 ,  F02F1/186 ,  Y02T10/142

    摘要： An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engine can thus be run at higher revolutions per minute and produce more power. An internal sleeve valve is provided for space and other considerations. A combustion chamber size-varying mechanism allows for adjustment of the minimum size of an internal volume to increase efficiency at partial-power operation. Variable intake valve operation is used to control engine power.

    摘要翻译： 内燃机提供。 面对活塞消除汽缸盖，从而减少通过汽缸盖的热量损失。 面对活塞还可以减少一个活塞提供相同压缩比所需的冲程，因此发动机可以以更高的每分钟转速运转并产生更多动力。 内部套筒阀用于空间和其他考虑。 燃烧室尺寸改变机构允许调节内部容积的最小尺寸以提高部分功率运行时的效率。 可变进气阀操作用于控制发动机功率。