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    • 4. 发明公开
    • 분말 금속 밸브 시트 인서트
    • 粉末金属阀座插件
    • KR1020040002642A
    • 2004-01-07
    • KR1020030040593
    • 2003-06-23
    • 이턴 코포레이션
    • 나라시만선더램엘.왕유슈로드리게스헤런에이.
    • C22C1/04
    • C22C38/60B22F2998/00C22C33/0228C22C33/0257C22C38/04C22C38/42C22C38/44C22C38/46F01L3/02F01L2101/00F01L2101/02F01L2103/00C22C33/0242
    • PURPOSE: A powder metal valve seat insert is provided to secure a new powder metal engine component for an internal combustion engine and to secure the new powder metal valve seat insert which is suited for use in a wide variety of internal combustion engine applications. CONSTITUTION: A valve assembly includes plural valves(12) each reciprocatingly received within the internal bore of a valve shaft guide(14). The valve shaft guide is essentially a tubular structure which is inserted into a cylinder head(24). A valve includes a valve seat face(16) interposed between the valve head and a fillet(28) of the valve. A valve shaft(30) is located normally upwardly of a neck and usually is received within valve shaft guide. A valve seat insert(18) is normally mounted within the cylinder head of the engine. The valve seat insert is substantially annular in shape with a cross-section, and cooperatively receives the valve seat face for sealing engagement therewith. A powder metal engine component is particularly suited for use as the valve seat insert in both light and heavy duty internal combustion engine applications. The powder metal engine component contains an intermetallic phase such as a Laves phase for both the cobalt or iron based alloy.
    • 目的:提供一种粉末金属阀座插件,用于固定用于内燃机的新型粉末金属发动机部件,并固定适用于各种内燃机应用的新型粉末金属阀座插入件。 构成:阀组件包括多个阀(12),每个阀往往容纳在阀轴引导件(14)的内孔内。 阀轴引导件基本上是插入气缸盖(24)中的管状结构。 阀包括置于阀头和阀的圆角(28)之间的阀座面(16)。 阀轴(30)通常位于颈部的上方并且通常被容纳在阀轴引导件内。 阀座插入件(18)通常安装在发动机的气缸盖内。 阀座插入件具有横截面的大致环形形状,并且协同地接收阀座面以与其密封接合。 粉末金属发动机部件特别适合用作轻型和重型内燃机应用中的阀座插入件。 粉末金属发动机部件包含金属间相,例如用于钴或铁基合金的Laves相。