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公开(公告)号:US20130255651A1
公开(公告)日:2013-10-03
申请号:US13847808
申请日:2013-03-20
发明人: Yoshihiro NOMURA , Hidemasa KOSAKA , Makoto KOIKE , Yoshifumi WAKISAKA , Yoshihiro HOTTA , Kiyomi NAKAKITA
IPC分类号: F02B23/00
CPC分类号: F02B23/00 , F01L2101/02 , F02B77/11 , F02F1/00 , F02F1/24 , F02F3/14 , F02F2001/008 , F05C2201/0412 , F05C2201/0415 , F05C2203/08 , F05C2203/0817 , F05C2203/0843 , F05C2203/0869 , F05C2203/0886 , F05C2203/0895 , F05C2251/048 , F05C2253/12 , Y02T10/125
摘要: In a spark ignition engine, a thermal insulation thin layer is formed over a wall surface, facing an inside of a combustion chamber, of a base material forming the combustion chamber, and for a thermal conductivity λ [W/(m·K)], a thermal diffusivity κ [mm2/s], and a thickness L [μm] of the thermal insulation thin layer, L≧16.7×λ and L≦207.4×(κ)0.5 are satisfied. With such a configuration, a heat loss Q_total escaping from gas in a cylinder to the wall of the combustion chamber over all strokes can be reduced, and the thermal efficiency can be improved without inducing degradation of knocking due to an increase in an amount of heating Q_intake of the gas in the cylinder during an intake stroke.
摘要翻译: 在火花点火发动机中,在形成燃烧室的基体材料的壁表面(面对燃烧室的内部),导热系数λ[W /(m·K)]之间形成绝热薄层, ,热绝缘薄层的热扩散系数kappa [mm2 / s]和厚度L [m]满足L> = 16.7×λ和L@207.4×(kappa)0.5。 通过这样的结构,可以减少从气缸内的气体到所有冲程的燃烧室壁的热损失Q_total,并且可以提高热效率,而不会由于加热量的增加而引起爆震降低 在进气冲程期间气缸中的气体Q_intake。
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公开(公告)号:US20180128233A1
公开(公告)日:2018-05-10
申请号:US15804563
申请日:2017-11-06
发明人: Masao KINOSHITA , Takayuki FUYUTO , Ryou MASUDA , Yoshihiro HOTTA
IPC分类号: F02P1/00
摘要: An ignition device for an internal combustion engine is provided which improves ignition while reducing electric power consumption. An ignition device for an internal combustion engine includes an ignition plug that is placed with a tip exposed on an end in an axial direction of a combustion chamber formed in a cylinder and that includes a central electrode and a grounding electrode provided opposing each other at the tip, and a magnetic field former that forms a magnetic field in a direction in which a magnetic field vector substantially vertically passes through an approximate two-dimensional plane including a spark discharge path formed, by a gas flow ejected to the end in the axial direction of the combustion chamber, between the central electrode and the grounding electrode, and extending in an approximate U shape in a direction orthogonal to the opposing direction of the electrodes.
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公开(公告)号:US20150226255A1
公开(公告)日:2015-08-13
申请号:US14696999
申请日:2015-04-27
CPC分类号: F16C9/02 , F01M5/001 , F01M5/02 , F01M2011/026 , F16C3/14 , F16C3/16 , F16C17/02 , F16C33/10 , F16C33/1025 , F16C33/105 , F16C33/667 , F16C35/02 , F16C41/00 , F16C2202/20 , F16C2202/24
摘要: When temperature of lubricating oil is raised at a time of low-temperature, of an outer peripheral side of a radial plain bearing in a bearing retaining unit, heat is not supplied from a heating medium in a thermal medium flow path on the outer peripheral side of a halved bearing metal in a bearing retaining unit body, which has a large thermal capacity, and instead, heat is supplied from the heating medium in the thermal medium flow path on the outer peripheral side of a halved bearing metal in the cap, which has a small thermal capacity.
摘要翻译: 当在低温时使润滑油的温度升高到轴承保持单元中的径向滑动轴承的外周侧时,不会从外周侧的热介质流路中的加热介质供给热量 在具有大的热容量的轴承保持单元主体中的一半的轴承金属,而是从热介质流动路径中的加热介质在盖中的半轴承金属的外周侧上供热, 热容量小。
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公开(公告)号:US20160160754A1
公开(公告)日:2016-06-09
申请号:US14954411
申请日:2015-11-30
发明人: Kazunari MORIYA , Shigeaki GOTO , Hidemasa KOSAKA , Tomoyuki AKITA , Yoshihiro HOTTA , Kiyomi NAKAKITA
IPC分类号: F02B71/06
摘要: A controller for a free piston generator that is capable of more accurately controlling the behavior of a piston than conventional controllers is provided. During power generation of a free piston generator 10, a controller 18 controls the amount of power generation to cause the velocity of a piston 14 to reach a first velocity command value (for an expansion stroke) and a second velocity command value (for a compression stroke) by electric braking. During motoring, the controller 18 controls the amount of power supply to cause the velocity of the piston 14 to reach the first and second velocity command values. The controller 18 sets the first and second velocity command values by setting first and second velocity command values for a certain round-trip period based on a top dead center position and a bottom dead center position of the piston 14 for the previous round-trip period.
摘要翻译: 提供了一种用于自由活塞发生器的控制器,其能够比常规控制器更精确地控制活塞的行为。 在自由活塞发生器10的发电期间,控制器18控制发电量,使活塞14的速度达到第一速度指令值(膨胀冲程)和第二速度指令值(用于压缩 行程)通过电动制动。 在电动运转期间,控制器18控制供电量,使活塞14的速度达到第一和第二速度指令值。 控制器18通过基于前一往返时段的活塞14的上止点位置和下死点位置设定一定往返时段的第一速度指令值和第二速度指令值来设定第一速度指令值和第二速度指令值 。
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