| 摘要 |
A hollow valve for internal combustion engines, comprising a valve body having a disk, a hollow throat region and a stem component, wherein the valve body is designed in the form a deep-drawn metal part made of austenitic metal. There is a stem end piece welded to the stem component of the valve body and a cover welded to the disk. The valve body, end piece and cover enclose a hollow space extending from the stem end piece into the disk. This valve is considerably lighter in weight than traditional valves, and is capable of lowering the temperature of the valve when the hollow space is filled with a coolant.
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