Aluminum alloy for piston and method for producing piston
    131.
    发明授权
    Aluminum alloy for piston and method for producing piston 失效
    活塞铝合金和活塞生产方法

    公开(公告)号:US5972071A

    公开(公告)日:1999-10-26

    申请号:US118713

    申请日:1998-07-17

    Abstract: An aluminum alloy for pistons and a method of manufacturing pistons making use of said alloy, enabling casting without sacrificing the ease of casting, and restricting deformation and melting at high temperatures, and fatigue and wear caused by high speed sliding movement. The aluminum alloy contains Si+SiC in an amount in the range of 8% to 20% by weight, and SiC in an amount of 2% or more by weight. An ingot containing the aluminum alloy is melted, sprayed in the state of mist, rapidly cooled and solidified into rapidly cooled powder. The rapidly cooled powder is heated and solidified into a blank from which the piston is forged, heat-treated, and machined.

    Abstract translation: 用于活塞的铝合金和使用所述合金制造活塞的方法,能够铸造而不牺牲铸造的容易性,并且限制高温下的变形和熔化,以及由高速滑动引起的疲劳和磨损。 铝合金含有8重量%〜20重量%的Si + SiC,SiO 2为2重量%以上。 含有铝合金的锭熔化,以雾状喷雾,迅速冷却并固化成快速冷却的粉末。 快速冷却的粉末被加热并固化成坯料,活塞被锻造,热处理和加工。

    Non-annular piston bowl for two-valve engines using offset injectors
    132.
    发明授权
    Non-annular piston bowl for two-valve engines using offset injectors 失效
    用于使用偏置注射器的双阀发动机的非环形活塞碗

    公开(公告)号:US5970946A

    公开(公告)日:1999-10-26

    申请号:US972856

    申请日:1997-11-18

    Abstract: A piston having an offset piston bowl for use in an engine having a correspondingly offset fuel injector, wherein the piston bowl has a non-circular or non-annular shape. The non-annular bowl shape is contoured to permit increased spray plume length, avoiding impingement. The bowl is especially useful in a diesel engine having two-valves per cylinder, wherein the injector must be mounted in an offset location because a central region of the cylinder head is occupied by two proximal valve ports. The bowl has a raised inner portion surrounded by a concave outer portion. A peak or apex of the raised inner portion is located closer to a peripheral wall of the concave outer portion at a "short" side of the bowl than at a "long" side of the bowl.

    Abstract translation: 一种活塞,其具有用于具有相应偏移的燃料喷射器的发动机中的偏移活塞碗,其中活塞碗具有非圆形或非环形形状。 非环形碗形状具有轮廓,以允许增加喷雾长度,避免冲击。 该碗在具有每个气缸的两个阀的柴油发动机中特别有用,其中喷射器必须安装在偏移位置,因为气缸盖的中心区域被两个近端阀口占据。 碗具有被凹入的外部包围的凸起的内部。 升高的内部部分的顶点或顶点在碗的“短”侧比在碗的“长”侧更靠近凹形外部的周壁。

    Cylinder liner comprising a supereutectic aluminum/silicon alloy for
sealing into a crankcase of a reciprocating piston engine and method of
producing such a cylinder liner
    134.
    发明授权
    Cylinder liner comprising a supereutectic aluminum/silicon alloy for sealing into a crankcase of a reciprocating piston engine and method of producing such a cylinder liner 失效
    包括用于密封往复活塞发动机的曲轴箱的超共晶铝/硅合金的气缸衬套和制造这种气缸套的方法

    公开(公告)号:US5916390A

    公开(公告)日:1999-06-29

    申请号:US967032

    申请日:1997-11-10

    CPC classification number: B22F3/115 F02F1/004 F02F2007/009 F05C2201/021

    Abstract: The invention relates to a cylinder liner sealed into a reciprocating piston engine comprising a supereutectic aluminum/silicon alloy which is free of mixed-in particles of hard material and which is composed in such a way that fine silicon primary crystals and intermetallic particles automatically form from the melt as hard particles. A blank is allowed to grow from finely sprayed melt droplets by spray compaction, with a fine distribution of hard particles being produced by setting the spray for small melt droplets. The blank can then be formed by cold extrusion to create a shape approximating the cylinder lining. After premachining, the surface is fine machined, honed in at least one stage and then the hard particles lying at the surface are mechanically exposed, is forming plateau areas of hard particles which project above the remaining surface of the base microstructure of the alloy. The mechanical exposure of the primary crystals or particles is carried out by a honing process using felt strips which are cylindrically shaped on the outside and a slurry of SiC particles in honing oil. The fine-grained, hard particles formed from the melt and also the mechanical exposure of the hard particles on the surface of the cylinder results not only in high wear resistance and high contact area of the surface, but also in gentle treatment of the piston and its rings.

    Abstract translation: 本发明涉及一种密封成往复式活塞发动机的气缸套,其包括超共晶铝/硅合金,其不含硬质材料的混合颗粒,并且以这样的方式组成,使得细微的初级晶体和金属间颗粒自 熔体作为硬粒子。 通过喷雾压实允许坯料从精细喷射的熔体液滴中生长,通过将喷雾设置为小熔体液滴而产生的硬颗粒的精细分布。 然后可以通过冷挤压形成坯件以产生接近气缸内衬的形状。 在预加工之后,表面被精细加工,在至少一个阶段中被珩磨,然后位于表面的硬质颗粒被机械暴露,形成高于合金基体微结构的剩余表面的硬质颗粒的平台区域。 主晶体或颗粒的机械暴露是通过使用在外部圆柱形的毡条和珩磨油中的SiC颗粒的浆料的珩磨过程进行的。 由熔体形成的细粒状的硬质颗粒以及硬质颗粒在气缸表面上的机械暴露不仅导致表面的高耐磨性和高接触面积,而且在活塞的温和处理中 它的戒指。

    Cobalt-tin alloy coating on aluminum by chemical conversion
    135.
    发明授权
    Cobalt-tin alloy coating on aluminum by chemical conversion 失效
    钴 - 锡合金涂层在铝上通过化学转化

    公开(公告)号:US5911809A

    公开(公告)日:1999-06-15

    申请号:US50215

    申请日:1998-03-30

    Abstract: A swash plate type compressor having a cylinder block with cylinder bores disposed parallel to the axis of the cylinder block. A rotary shaft rotatably mounted within the cylinder block carries an aluminum swash plate. The swash plate is fixed in the rotary shaft and has two facial surfaces and an end surface. The swash plate has a coating preferably between 0.8 to 2.5 microns, of a tin/cobalt coating of at least 0.2 wt% cobalt and the balance being tin. A piston reciprocally fitted within the cylinder bore contains shoes which slideably intervene between the piston and the swash plate facial surfaces and reciprocate the piston and the swash plate facial surfaces and reciprocate the pistons by rotation of the swash plate. The coating on the swash plate permits the use of low silicon alloy aluminum without the need of metal plating or high finish polishing.

    Abstract translation: 一种斜盘式压缩机,其具有与气缸体的轴线平行设置的气缸孔的气缸体。 可旋转地安装在气缸体内的旋转轴携带铝斜盘。 旋转斜盘固定在旋转轴上,具有两个面和端面。 旋转斜盘具有优选为0.8至2.5微米的涂层,至少0.2重量%钴的锡/钴涂层和余量为锡的涂层。 往复配合在气缸孔内的活塞包含可滑动地插入活塞和斜盘面之间的滑块,并使活塞和旋转斜盘表面往复运动,并通过旋转斜盘的旋转使活塞往复运动。 旋转斜盘上的涂层允许使用低硅合金铝,而不需要金属电镀或高精抛光。

    Metallic sliding material
    136.
    发明授权
    Metallic sliding material 失效
    金属滑动材料

    公开(公告)号:US5879816A

    公开(公告)日:1999-03-09

    申请号:US758251

    申请日:1996-11-27

    Abstract: A metallic sliding material including at least a support member with a sliding surface and an inorganic compound coating layer formed on the sliding surface is disclosed. The sliding surface is formed from an aluminum alloy or a reinforcing material-containing aluminum alloy. The inorganic compound coating layer is formed from at least one aluminum compound, and at least one phosphorus compound, and at least one member selected from the group of molybdenum compounds, tungsten compounds, and chromium compounds. These compounds are present in such concentrations that molybdenum, tungsten, and chromium collectively constitute 2 to 48% by weight of the inorganic compound coating layer, aluminum constitutes 1 to 25% by weight of the inorganic compound coating layer, phosphorus constitutes 1 to 25% by weight of the inorganic compound coating layer, and the balance of the inorganic compound coating layer is oxygen and impurities.

    Abstract translation: 公开了一种金属滑动材料,其至少包括具有滑动表面的支撑构件和形成在滑动表面上的无机化合物涂层。 滑动面由铝合金或含有增强材料的铝合金形成。 无机化合物涂层由至少一种铝化合物和至少一种磷化合物和选自钼化合物,钨化合物和铬化合物中的至少一种形成。 这些化合物的存在浓度使得钼,钨和铬总共占无机化合物涂层的2〜48重量%,铝占无机化合物涂层的1〜25重量%,磷占1〜25重量% 的无机化合物涂层,其余的无机化合物涂层是氧和杂质。

    Air intake system for internal combustion engine
    138.
    发明授权
    Air intake system for internal combustion engine 失效
    内燃机进气系统

    公开(公告)号:US5797380A

    公开(公告)日:1998-08-25

    申请号:US968972

    申请日:1997-11-12

    Abstract: An air intake system for an internal combustion engine which does not impair detection performance of a flow sensor without impairing intrinsic function thereof even when a distance between the flow sensor (4) and as inlet port (80) for a recirculating air is dimensioned short. The air intake system includes a recirculating air passage (8) for recirculating a blow-by gas (B) leaking into a crankcase (13) connected to an engine cylinder (1) to an intake air passage (2a). A positive crankcase ventilation system is provided which includes a communicating passage (18) for communicating interior of the crankcase (13) with that of a head cover assembly (14) of the cylinder (1), a recirculating passage (6) for introducing the blow-by gas (B) from the head cover assembly (14) into an intake air passage (2a) at a location downstream of a throttle valve (24), and a recirculating air passage (8) for introducing the recirculating air into the head cover assembly (14) from the intake air passage (2a) at a location intermediate between the flow sensor (4) and the throttle valve (24). The recirculating air passage (8) has a suction member (81) having one end portion disposed within the intake air passage (2a). The suction member (81) defines an air inlet passage having an inlet port (80) provided in the one end portion located at a downstream side relative to the center of the one end portion within the intake air passage (2a). Disturbance in the air stream occurring at the flow sensor is suppressed. Besides, protecting the flow sensor is protected against contamination even when the blow-by gas injected from the recirculating air passage (8).

    Abstract translation: 即使当流量传感器(4)和作为循环空气的入口(80)之间的距离尺寸较小时,也不会损害流量传感器的检测性能而不损害其内在功能的内燃机的进气系统。 进气系统包括用于使泄漏到连接到发动机气缸(1)的曲轴箱(13)中的窜气(B)再循环到进气通道(2a)的再循环空气通道(8)。 提供一种正曲轴箱通风系统,该系统包括用于将曲轴箱(13)的内部与气缸(1)的头罩组件(14)的内部连通的连通通道(18),用于引导 湍流气体(B)从头盖组件(14)进入到节流阀(24)下游位置的进气通道(2a)中;以及再循环空气通道(8),用于将循环空气引入 在所述流量传感器(4)和所述节流阀(24)之间的位置处,所述头罩组件(14)从所述进气通道(2a)开始。 再循环空气通路(8)具有吸入部件(81),该吸引部件具有设置在吸气通道(2a)内的一端部。 抽吸构件(81)限定空气入口通道,其具有设置在相对于进气通道(2a)内的一个端部的中心的下游侧的一个端部中的入口(80)。 抑制在流量传感器处发生的空气流中的干扰。 此外,即使当从再循环空气通道(8)喷射的窜气气体时,保护流量传感器也免受污染。

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