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    • 10. 发明申请
    • CYLINDER BLOCK AND METHOD FOR PRODUCING CYLINDER BLOCK
    • 气缸块及其制造方法
    • WO2008059329A1
    • 2008-05-22
    • PCT/IB2007/003278
    • 2007-10-30
    • TOYOTA JIDOSHA KABUSHIKI KAISHATAKAMI, ToshihiroYOSHIJIMA, Kazuya
    • TAKAMI, ToshihiroYOSHIJIMA, Kazuya
    • B22D19/00B22D19/02B22D19/08
    • B22D19/0009B22D19/02B22D19/08
    • In an open-deck cylinder block (1) which is cast with a cylinder liner (3) incorporated therein, a MMC sleeve (4) that is made from a metal matrix composite is closely fitted on the outer periphery of the cylinder liner (3) and the outer periphery of the MMC sleeve (4) faces a water jacket (12), at a deck-face portion of the cylinder block (1). Thus, a layer made only from an aluminum alloy is not present in the deck-face portion, whereby the strength of the deck-face portion is enhanced. Also, the strength of the entire cylinder bore portion is enhanced by fitting the MMC sleeve (4) on the entire outer periphery of the cylinder liner (3). Thus, it is possible to provide an open-deck cylinder block having an enhanced strength at its upper-end portion of the cylinder block, and a method for producing such cylinder block.
    • 在其内装有气缸套(3)的开放式气缸体(1)中,由金属基复合材料制成的MMC套筒(4)紧密地配合在气缸套(3)的外周上 ),并且MMC套筒(4)的外周面在气缸体(1)的甲板面部分处的水套(12)。 因此,甲板面部不存在仅由铝合金构成的层,能够提高甲板面部的强度。 此外,通过将MMC套筒(4)装配在气缸套(3)的整个外周上,整个气缸孔部分的强度得以增强。 因此,可以提供一种在气缸体的上端部具有增强强度的开放式气缸体,以及用于制造气缸体的方法。