出典:Wiktionary
poppet valve (複数形 poppet valves)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/13 14:23 UTC 版)
A poppet valve (also called mushroom valve) is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most applications a pressure differential helps to seal the valve and in some applications also open it.