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    • 13. 发明申请
    • Engine
    • 发动机
    • US20050257765A1
    • 2005-11-24
    • US11131460
    • 2005-05-18
    • Teruyuki SaitohKeita Ito
    • Teruyuki SaitohKeita Ito
    • F02F7/00F01P1/02F02F1/00F02F1/28F02F1/30
    • F02F1/30F02F2007/0041
    • An engine includes a cylinder head having a valve-operating chamber. A cylinder head is coupled to a cylinder block by a plurality of fastening bolts. A head cover is coupled to the cylinder head to close the valve-operating chamber. A ventilating gap is defined between a face of the cylinder head fastened by the fastening bolts and a bottom wall of the valve-operating chamber. An operating bore is provided in the bottom wall to enable insertion of at least one of the fastening bolts and a tool for tightening the fastening bolt. A plug is integrally provided in the head cover to be liquid-tightly fitted into the operating bore. Cooling of portions around the bottom wall of the valve-operating chamber is improved, while the cylinder head can be fastened to the cylinder block from the side of the valve-operating chamber by the fastening bolts.
    • 发动机包括具有阀操作室的气缸盖。 气缸盖通过多个紧固螺栓联接到气缸体。 头盖联接到气缸盖以关闭阀操作室。 在由紧固螺栓紧固的气缸盖的面和阀操作室的底壁之间限定通气间隙。 操作孔设置在底壁中以能插入至少一个紧固螺栓和用于紧固紧固螺栓的工具。 插头一体地设置在头盖中以液密地装配到操作孔中。 改善了气门室的底壁周围的部分的冷却,同时气缸盖可以通过紧固螺栓从气门操作室的一侧紧固到气缸体。