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    • 10. 发明申请
    • Valve Seat Insert
    • 阀座插件
    • US20110203555A1
    • 2011-08-25
    • US12709327
    • 2010-02-19
    • Paul T. ReinhartKen Steven FedesonRobert Stephen Furby
    • Paul T. ReinhartKen Steven FedesonRobert Stephen Furby
    • F02B51/00F01L3/02F02F1/42
    • F01L3/04F01L3/22F02D41/0025F02D41/3005F16K1/42F16K25/005F16K25/04
    • In one example, a valve seat insert for a cylinder head seat pocket of an internal combustion engine is described. The valve seat insert comprises an annular body comprising a first material and including an inner surface, an outer surface opposite the inner surface, a front surface adjoining the inner and outer surfaces, and a back surface opposite the front surface adjoining the inner and outer surfaces. The front surface includes an inner circumference greater than an inner circumference of the back surface. The back surface includes a first recession inlaid with a sacrificial anode comprising a second material different from the first material and having an exposed surface. In this manner, it may be possible to substantially prevent corrosion of the cylinder head seat pocket. Further, various approaches for reducing corrosion of the cylinder head seat pocket are described.
    • 在一个示例中,描述了用于内燃机的气缸盖座袋的阀座插入件。 阀座插入件包括环形主体,其包括第一材料并且包括内表面,与内表面相对的外表面,邻接内表面和外表面的前表面以及与内表面和外表面相邻的前表面相对的后表面 。 前表面包括大于背面内周的内圆周。 后表面包括镶嵌有牺牲阳极的第一凹陷,所述牺牲阳极包括不同于第一材料并具有暴露表面的第二材料。 以这种方式,可以基本上防止气缸盖座椅口袋的腐蚀。 此外,描述了用于减少气缸盖座椅口袋的腐蚀的各种方法。