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    • 1. 发明授权
    • Piston for internal combustion engine
    • 内燃机活塞
    • US07066078B2
    • 2006-06-27
    • US10903397
    • 2004-07-30
    • Tai OnoTatsuru FukudaTsuyoshi Hanakawa
    • Tai OnoTatsuru FukudaTsuyoshi Hanakawa
    • F02F3/00
    • B22D19/0027F02F3/045F05C2253/16
    • By casting a preformed member composed of a fiber reinforced material into a base material of a piston, a pair of crown reinforcing portions corresponding to respective pin boss portions are formed on a crown portion, and the pair of crown reinforcing portions are connected to each other along the piston pin axis by a connecting portion. Thus, the strength of the piston is increased by the crown reinforcing portions, and also, heat distortion of the crown portion is inhibited since the crown reinforcing portions integrally connected to each other by the connecting portion are formed so as to serve as a rigid member extending along the piston pin axis.
    • 通过将由纤维增强材料构成的预成型体浇注到活塞的基材中,在冠部上形成有与各销销凸起部对应的一对胎冠加强部,并且一对冠部加强部彼此连接 沿着活塞销轴线通过连接部分。 因此,通过冠部加强部分增加活塞的强度,并且由于通过连接部一体地连接的胎冠增强部分形成为冠状部分的热变形,所以冠状部分的热变形被形成为刚性构件 沿着活塞销轴线延伸。