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    • 98. 发明授权
    • Torque converter provided with lock-up clutch and arranged for efficient heat dissipation
    • 扭矩转换器配有锁止离合器,并配置有效散热
    • US06662918B2
    • 2003-12-16
    • US10224479
    • 2002-08-21
    • Hiroaki TakeuchiHisashi WatanabeMasanori Iritani
    • Hiroaki TakeuchiHisashi WatanabeMasanori Iritani
    • F16H4502
    • F16H57/0413F16H45/02F16H57/0434F16H61/143F16H2045/021
    • A torque converter provided with a lock-up clutch and including a pump impeller, a turbine runner, a turbine hub, a stator, a clutch piston rotatable with the turbine runner and cooperating with the pump impeller to define an engaging chamber, a front cover cooperating with the clutch piston to define a releasing chamber and a friction member attached to the front cover, and wherein the lock-up clutch is placed in a slipping state for slipping engagement between the clutch piston and the front cover through the friction member, by a controlled difference between pressures of a working fluid in the engaging and releasing chambers, and the pump impeller and the stator cooperate to define of a first and a second fluid passage both of which communicate with the engaging chamber, while the stator and the turbine hub cooperate with each other to define the other of the first and second fluid passages, and wherein the lock-up clutch is brought into the slipping state with a supply flow of the fluid into the engaging chamber through the first fluid passage and a discharge flow of the fluid from the engaging chamber through the second fluid passage.
    • 一种设置有锁止离合器的变矩器,包括泵叶轮,涡轮机转轮,涡轮机毂,定子,可与涡轮机转轮一起旋转的离合器活塞,并与泵叶轮配合以限定接合室,前盖 与所述离合器活塞配合以限定释放室和附接到所述前盖的摩擦构件,并且其中所述锁止离合器被置于滑动状态,以通过所述摩擦构件滑动所述离合器活塞和所述前盖之间的接合, 在接合和释放室中的工作流体的压力和泵叶轮和定子之间的受控差异协调以限定第一和第二流体通道,两者都与接合室连通,而定子和涡轮机毂 彼此配合以限定第一和第二流体通道中的另一个,并且其中锁定离合器进入滑动状态,其中 流体通过第一流体通道进入接合室,并且流体从接合室经第二流体通道排出。
    • 100. 发明授权
    • .alpha.-alumina
    • α-氧化铝
    • US06165437A
    • 2000-12-26
    • US805044
    • 1997-02-24
    • Masahide MohriYoshio UchidaYoshinari SawabeHisashi Watanabe
    • Masahide MohriYoshio UchidaYoshinari SawabeHisashi Watanabe
    • C01F7/02C01F7/44C30B25/00
    • C01F7/442C01F7/02C01P2004/03C01P2004/30C01P2004/40C01P2004/42C01P2004/52C01P2004/54C01P2004/60C01P2004/61C01P2004/62C01P2006/80C30B25/00C30B29/20
    • .alpha.-Alumina comprising .alpha.-alumina single crystal particles which are homogeneous containing no crystal seed inside the particles; have an octa- or higher polyhedral shape; have a D/H ratio of from 0.5 to 3.0, wherein D represents a maximum particle diameter parallel to a hexagonal lattice plane of a hexagonal close-packed lattice of the particles, and H represents a diameter perpendicular to the hexagonal lattice plane; have a number average particle diameter of more than 5 .mu.m and not more than 30 .mu.m; have a sodium content of less than 5 ppm in terms of Na.sub.2 O; and have an alumina purity of not less than 99.90% by weight. .alpha.-Alumina in a powder form composed of .alpha.-alumina single crystal particles having a high punity, a fine and uniform composition, a narrow particle size distribution, and an octa- or higher polyhedral shape which are not aggromerates. The .alpha.-alumina of the invention is useful as an abrasive, a raw material for sintered products, a raw material for a encapsulations, a raw material for ceramic filters, etc. and, owing to its high purity, particularly useful as a raw material for single crystals, e.g., yttrium aluminum garnet (YAG), sapphire, ruby, etc. and as a raw material for high purity sintered products.
    • α-氧化铝,其包含在颗粒内不含晶种的均匀的α-氧化铝单晶颗粒; 具有八面体或更高的多面体形状; D / H比为0.5〜3.0,其中D表示与六方孔密堆积晶格的六方晶格平面平行的最大粒径,H表示垂直于六方晶格面的直径; 数均粒径超过5μm,不超过30μm; 钠含量按Na2O计小于5ppm; 并且具有不小于99.90重量%的氧化铝纯度。 由具有高惩罚性,细小且均匀的组成,窄的粒度分布和不具有聚集性的八面体或更高的多面体形状的α-氧化铝单晶颗粒组成的粉末形式的α-氧化铝。 本发明的α-氧化铝可用作研磨剂,烧结产品的原料,封装用原料,陶瓷过滤器用原料等,由于其纯度高,特别用作原料 用于单晶,例如钇铝石榴石(YAG),蓝宝石,红宝石等,并作为高纯度烧结产品的原料。