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    • 8. 发明申请
    • FASTENING STRUCTURE FOR CYLINDER HEAD AND DIVIDED TYPE CYLINDER BLOCK OF ENGINE
    • 发动机气缸盖和分体式气缸块的紧固结构
    • WO2005068813A1
    • 2005-07-28
    • PCT/JP2005/000631
    • 2005-01-13
    • TOYOTA JIDOSHA KABUSHIKI KAISHAOMURA, SeijiYAMADA, Ken
    • OMURA, SeijiYAMADA, Ken
    • F02F1/10
    • F02F1/102F02F1/10F02F1/16F02F2007/0063
    • A cylinder block 3 of an engine 1 is formed by assembling an inner block member 10 and an outer block member 15. The inner block member 10 includes an upper deck portion 7 integrated with a cylinder liner portion 8. The outer block member 15 includes a cylinder outer wall portion 12. The cylinder head 2 is fastened to an upper deck portion 7 with head bolts 31. The cylinder outer wall portion 12 is fastened to the upper deck portion 7 with block fastening bolts 32 at an opposite side of the upper deck portion 7 with respect to the cylinder head 2. The head bolts 31 and the block fastening bolts 32 are threaded with the upper deck portion 7 from the opposite sides with respect to each other. As a result, deformation of the upper deck portion 7 and inclination of the cylinder liner portion 8 due to fastening of the bolts 31, 32 are reliably prevented.
    • 发动机1的气缸体3通过组装内部块构件10和外部块构件15而形成。内部块构件10包括与气缸套部分8一体化的上部甲板部分7.外部构件15包括 气缸盖2用头螺栓31固定在上甲板部分7上。气缸外壁部分12在上甲板的相对侧用块紧固螺栓32紧固到上甲板部分7 相对于气缸盖2的头部螺栓31和块紧固螺栓32从上甲板部分7相对于彼此的相对侧螺纹连接。 结果,能够可靠地防止上部甲板部7的变形和由于螺栓31,32的紧固引起的气缸套部8的倾斜。