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    • 6. 发明申请
    • PISTON RING
    • 活塞环
    • WO2015021238A1
    • 2015-02-12
    • PCT/US2014/050070
    • 2014-08-07
    • FEDERAL-MOGUL CORPORATION
    • MILLER, Andrew, John
    • F16J1/09F16J9/14F16J9/22
    • F16J9/12F16J1/09F16J9/14F16J9/22
    • 100461 An improved piston ring (20) for use as an intermediate piston ring in a piston assembly having three or more piston rings is provided. The piston ring includes a piston ring body which extends through an arcuate shape between opposite end faces (22). The piston ring body has at least one combustion gas guidance feature (22, 32) for allowing a greater flow of combustion gasses to pass the piston ring body when the piston is moving in one direction and for allowing a lesser flow of combustion gasses to pass the piston ring body when the piston is moving in an opposite direction. This allows for the ring gap at the outer diameter of the piston ring (20) to be minimized without creating flutter in another piston ring above the intermediate piston ring during operation of an engine.
    • 100461提供一种用于具有三个或更多个活塞环的活塞组件中的中间活塞环的改进的活塞环(20)。 活塞环包括在相对端面(22)之间延伸穿过弓形形状的活塞环体。 活塞环主体具有至少一个燃烧气体引导特征(22,32),用于当活塞沿一个方向移动时允许更大的燃烧气体流通过活塞环体,并允许更少的燃烧气体流通过 当活塞沿相反方向移动时,活塞环体。 这允许在发动机操作期间使活塞环(20)的外径处的环形间隙最小化,而不会在中间活塞环上方的另一个活塞环中产生颤动。
    • 7. 发明申请
    • PISTON WITH CROWN COOLING JET
    • 活塞与冷却喷嘴
    • WO2010118223A3
    • 2011-01-20
    • PCT/US2010030378
    • 2010-04-08
    • FEDERAL MOGUL CORPREBELLO JOSE
    • REBELLO JOSE
    • F02F3/22F16J1/09
    • F02F3/003F02F3/22
    • A piston (10, 10') includes a piston body (12, 12') having an upper crown portion (16, 16') with an upper combustion dome (18, 18') against which combustion forces act. The underside of the upper combustion dome (18, 18') comprises an under-crown region (60, 60'). The piston body (12, 12') also includes a lower crown portion (26, 26') with a pair of pin bosses (36, 38) spaced apart for pivotally adjoining a connecting rod. An outer oil gallery (31, 31 ') is formed as an inclusion between the upper (16, 16') and lower (26, 26') crown portions. The outer oil gallery (31, 31 ') has an oil inlet (50, 50') and an oil outlet (52, 52'). A tubular oil jet (54, 54') is affixed in fluid communication with the oil outlet (52, 52') and extends toward the under-crown region (60, 60') where oil is discharged during reciprocation of the piston (16, 16'). Cooling oil from the outer oil gallery (33) is channeled by the oil jet (54, 54') to the under-crown region (60, 60') providing supplemental cooling in a passively actuated system.
    • 活塞(10,10')包括具有上部燃烧穹顶(18,18')的上冠部(16,16')的活塞体(12,12'),所述上部燃烧穹顶(18,18')被燃烧作用。 上燃烧穹顶(18,18')的下侧包括下冠区域(60,60')。 活塞体(12,12')还包括具有间隔开的一对销凸起(36,38)的下冠部(26,26'),用于枢转地邻接连杆。 外部油画廊(31,31')形成为上部(16,16')和下部(26,26')冠部之间的夹杂物。 外油库(31,31')具有油入口(50,50')和出油口(52,52')。 管状油喷射器(54,54')固定成与油出口(52,52')流体连通,并朝着下部冠部区域(60,60')延伸,其中在活塞(16)的往复运动期间排出油 ,16')。 来自外部油道(33)的冷却油被油喷射(54,54')引导到下冠区域(60,60'),从而在被动驱动的系统中提供补充冷却。