Modular engine architecture
    1.
    发明授权
    Modular engine architecture 有权
    模块化引擎架构

    公开(公告)号:US06543405B2

    公开(公告)日:2003-04-08

    申请号:US09924930

    申请日:2001-08-08

    IPC分类号: F02F700

    CPC分类号: F01B1/12 F02F7/0031

    摘要: An automotive reciprocating engine design is disclosed preferably including an extruded cylinder bore block with cylinder bores and a surrounding coolant passage extending from a top flat surface to a bottom flat surface; a cast, closed bottom, open top crankcase with vertical walls having flat upper surfaces; and a stamped metal mid-plate interposed in sealing relationship between the bottom surface of the cylinder block and the flat top surfaces of the crankcase. The crankcase contains bearing supports for a crankshaft and the mid-plate contains holes for connecting rods attached to pistons in the cylinder bores. The design facilitates low cost manufacture of strong, light weight components and easier assembly of the engine, and permits flexible manufacture of a family of engines with different displacements by substitution of a cylinder block of different length or of different bore diameter.

    摘要翻译: 公开了一种汽车往复式发动机设计,其优选地包括具有气缸孔的挤出气缸孔块和从顶部平坦表面延伸到底部平坦表面的周围冷却剂通道; 一个铸造,封闭的底部,敞开的顶部曲轴箱,其垂直壁具有平坦的上表面; 以及在气缸体的底面与曲轴箱的平坦的上表面之间以密封关系插入的冲压的金属中间板。 曲轴箱包含用于曲轴的轴承支撑件,中间板包含用于连接到气缸孔中的活塞的连接杆的孔。 该设计有助于低成本地制造强大,重量轻的部件并且更容易地组装发动机,并且通过替代不同长度或不同孔径的气缸体,允许灵活地制造具有不同位移的发动机系列。

    Heat treatment for aluminum casting alloys to produce high strength at
elevated temperatures
    2.
    发明授权
    Heat treatment for aluminum casting alloys to produce high strength at elevated temperatures 有权
    铝铸造合金的热处理在高温下产生高强度

    公开(公告)号:US6074501A

    公开(公告)日:2000-06-13

    申请号:US340365

    申请日:1999-06-28

    CPC分类号: C22F1/043 C22C21/02

    摘要: An aluminum casting of composition that is hardenable due to the presence of suitable amounts of silicon, magnesium and, optionally, other hardening constituents such as copper, nickel and the like is heat treated for improved tensile strength at 300.degree. C. The casting, which as formed has a microstructure of aluminum rich dendrites, silicon particles and hardening particles, is reheated above 500.degree. C. to redissolve the hardening particles and redistribute hardening constituents through the aluminum dendrites, cooling the casting to 350.degree. C. to 450.degree. C. and holding there to reform an abundance of large stable hardening precipitates in the aluminum dendrites and then air cooling the casting. The thus treated casting may then be artificially age hardened such as by a T5 temper practice.

    摘要翻译: 由于存在合适量的硅,镁和任选的其它硬化组分如铜,镍等可硬化的组合物的铝铸件被热处理以在300℃下提高拉伸强度。 如此形成的铝富枝枝晶,硅颗粒和硬化颗粒的微结构重新加热到500℃以上以再溶解硬化颗粒并通过铝枝晶重新分布硬化成分,将铸件冷却至350℃至450℃。 并持有在铝树枝状体中大量稳定的硬化沉淀物的改质,然后空气冷却铸件。 这样处理的铸件然后可以被人为老化硬化,例如通过T5回火实践。