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    • 2. 发明授权
    • Multi-cylinder internal combustion engine
    • 多缸内燃机
    • US08522742B2
    • 2013-09-03
    • US12649924
    • 2009-12-30
    • Kenichi OhmoriAkifumi Nomura
    • Kenichi OhmoriAkifumi Nomura
    • F01M1/02F02B77/00
    • F02B61/02F01M11/02F02F7/0007
    • To reduce the height of a crankcase by arranging a communicating passage in a proper position and to miniaturize an engine in a multi-cylinder internal combustion engine provided with an upper crankcase integrated with a cylinder block or provided separately from the cylinder block on the downside of the cylinder block and a lower crankcase connected to a lower part of the upper crankcase and provided with a communicating passage that communicates with internal spaces of plural crank chambers corresponding to plural cylinders. In the multi-cylinder internal combustion engine, a communicating hole that communicates with the communicating passage is provided on at least either side of the upper crankcase or the lower crankcase, and a cover forming the communicating passage is arranged with the cover covering the communicating hole and is attached to both crankcases across a joined plane of the upper crankcase and the lower crankcase.
    • 为了通过将连通通道布置在适当的位置并且在设置有与气缸体一体的上部曲轴箱或与气缸体分开设置的多气缸内燃机中将发动机小型化以减小曲轴箱的高度,所述上部曲轴箱在气缸体的下侧 气缸体和下曲轴箱连接到上曲轴箱的下部,并具有与多个气缸对应的多个曲柄室的内部空间连通的连通通道。 在多气缸内燃机中,在上曲轴箱或下曲轴箱的至少任一侧设置有与连通通路连通的连通孔,并且形成连通通路的盖布置成覆盖着连通孔 并且通过上曲轴箱和下曲轴箱的接合平面连接到两个曲轴箱。
    • 6. 发明授权
    • Exhaust gas valve device in internal combustion engine
    • 内燃机排气阀装置
    • US06769247B2
    • 2004-08-03
    • US10231476
    • 2002-08-30
    • Norihito WatanabeYasuyuki MiyaharaTadashi SatoMasao KomineKenichi OhmoriKenji AbeTetsuo Endo
    • Norihito WatanabeYasuyuki MiyaharaTadashi SatoMasao KomineKenichi OhmoriKenji AbeTetsuo Endo
    • F01N700
    • F01N3/0835F01N3/0814F01N3/0878F02D9/04
    • An exhaust gas valve device in an internal combustion engine, including a first bearing member mounted between a valve shaft and a valve body with one end of the valve shaft turnably fitted into the first bearing member, a second bearing member mounted between the valve shaft and the valve body with the other end of the valve shaft turnably passed through the second bearing member, and an actuator connected to the other end of the valve shaft protruding from the second bearing member. The valve body, the valve shaft and the first and second bearing members are formed of metal materials having equivalent thermal expansion coefficients; the first and second bearing members are press-fitted into said valve body; and a skin of a graphite-based solid lubricant is formed on a surface of the valve shaft in regions corresponding to the first and second bearing members. The concentricity accuracy of the pair of bearing members supporting the opposite ends of the valve shaft is enhanced, while avoiding an increase in the number of parts, thereby preventing the generation of noise and reducing the friction.
    • 一种内燃机中的排气阀装置,包括安装在阀轴和阀体之间的第一轴承构件,阀体的一端可转动地装配在第一轴承构件中,第二轴承构件安装在阀轴和 阀体的另一端可旋转地穿过第二轴承构件,以及连接到从第二轴承构件突出的阀轴的另一端的致动器。 阀体,阀轴以及第一和第二轴承部件由具有等效的热膨胀系数的金属材料形成; 第一和第二轴承构件压配合到所述阀体中; 并且在对应于第一和第二轴承构件的区域中的阀轴的表面上形成石墨基固体润滑剂的表皮。 支撑阀轴的相对端的一对支承构件的同心度精度得到提高,同时避免了零件数量的增加,从而防止产生噪音并降低了摩擦。