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    • 4. 发明申请
    • WEIGHT BALANCED INTERNAL COMBUSTION ENGINE PISTON
    • 重量平衡的内燃机活塞
    • WO2011053762A2
    • 2011-05-05
    • PCT/US2010/054659
    • 2010-10-29
    • CATERPILLAR INC.HE, JieBUENING, Jeffrey, P.
    • HE, JieBUENING, Jeffrey, P.
    • F02F3/00F16J1/08F02F3/22
    • F02F3/003F02F3/22F02F2200/04Y10T29/49249
    • A piston for an internal combustion engine includes a piston crown having an outer cylindrical wall and connected to and above a body portion of the piston. The piston includes at least one piston ring seal groove formed in the outer cylindrical wall and extending peripherally around the piston crown, and a first oil collection groove formed in the outer cylindrical wall below the at least one piston ring seal groove and extending in parallel to the at least one piston ring seal groove around an entire periphery of the piston. The first oil collection groove has a first width measured along a centerline of the piston. A second oil collection groove is formed in the outer cylindrical wall, below the first oil collection groove, extends parallel to the first oil collection groove around the entire periphery of the piston, and has a width that is at least double the width of the first oil collection groove.
    • 用于内燃机的活塞包括具有外圆柱形壁并连接到活塞的本体部分上方的活塞顶。 活塞包括至少一个活塞环密封槽,该活塞环密封槽形成在外圆柱形壁中并围绕活塞顶沿周边延伸;以及第一集油槽,形成在至少一个活塞环密封槽下方的外圆柱形壁中,并平行于 围绕活塞的整个周边的至少一个活塞环密封槽。 第一油收集槽具有沿着活塞的中心线测量的第一宽度。 第二油收集槽形成在第一油收集槽下方的外圆柱形壁中,围绕活塞的整个周边平行于第一油收集槽延伸,并具有至少是第一油收集槽宽度的两倍 集油槽。
    • 10. 发明申请
    • WEIGHT BALANCED INTERNAL COMBUSTION ENGINE PISTON
    • 重量平衡内燃机发动机活塞
    • WO2011053762A3
    • 2011-08-18
    • PCT/US2010054659
    • 2010-10-29
    • CATERPILLAR INCHE JIEBUENING JEFFREY P
    • HE JIEBUENING JEFFREY P
    • F02F3/00F02F3/22F16J1/08
    • F02F3/003F02F3/22F02F2200/04Y10T29/49249
    • A piston for an internal combustion engine includes a piston crown having an outer cylindrical wall and connected to and above a body portion of the piston. The piston includes at least one piston ring seal groove formed in the outer cylindrical wall and extending peripherally around the piston crown, and a first oil collection groove formed in the outer cylindrical wall below the at least one piston ring seal groove and extending in parallel to the at least one piston ring seal groove around an entire periphery of the piston. The first oil collection groove has a first width measured along a centerline of the piston. A second oil collection groove is formed in the outer cylindrical wall, below the first oil collection groove, extends parallel to the first oil collection groove around the entire periphery of the piston, and has a width that is at least double the width of the first oil collection groove.
    • 用于内燃机的活塞包括具有外圆柱形壁并连接到活塞的主体部分上方和上方的活塞冠。 活塞包括至少一个活塞环密封槽,该活塞环密封槽形成在外圆柱形壁上并围绕活塞顶部周向延伸;以及第一集油槽,其形成在至少一个活塞环密封槽下面的外圆筒壁中并且平行延伸 所述至少一个活塞环密封槽围绕所述活塞的整个周边。 第一采油槽具有沿活塞的中心线测量的第一宽度。 第二采油槽形成在第一采油槽下方的外圆筒壁中,在活塞的整个周边上平行于第一采油槽延伸,并且其宽度至少为第一采油槽的宽度的两倍 采油槽。