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    • 9. 发明申请
    • PISTON ASSEMBLY
    • 活塞装配
    • US20110197758A1
    • 2011-08-18
    • US12706965
    • 2010-02-17
    • Michael T. LappGrace ZhaoMike L. WilderDieter Gabriel
    • Michael T. LappGrace ZhaoMike L. WilderDieter Gabriel
    • F01B31/08B21D39/03
    • F02F3/003F02F3/22
    • A piston assembly and a method of making the same. Exemplary piston assemblies may include a piston crown having a ring belt portion defining a cooling gallery, and a strut extending away from the ring belt portion to define a wrist pin bore. The piston may further include a piston skirt assembly secured to the strut. The piston skirt assembly may include two separate portions that each have a closure plate formed integrally with the portion, with the closure plate generally enclosing the cooling gallery. Exemplary methods of assembling a piston may include providing a piston crown having a ring belt portion defining a cooling gallery and a strut extending away from the ring belt portion to define a wrist pin bore. The methods may further include forming a piston skirt assembly having two portions having a closure plate integrally formed therewith, and securing the skirt to the crown.
    • 活塞组件及其制造方法。 示例性的活塞组件可以包括具有限定冷却库的环形带部分的活塞冠部和从环形带部分延伸的支柱,以限定腕销孔。 活塞还可以包括固定到支柱的活塞裙部组件。 活塞裙组件可以包括两个分开的部分,每个部分具有与该部分一体形成的封闭板,封闭板通常包围冷却库。 组装活塞的示例性方法可以包括提供具有环形带部分的活塞冠部,所述环形带部分限定冷却槽和从环形带部分延伸的支柱,以限定腕销孔。 所述方法可以进一步包括形成具有两个部分的活塞裙部组件,所述两个部分具有与其一体形成的封闭板,并将裙部固定到冠部。