提升阀(Poppet valve)，有时称为锥阀，菌形阀，菌装阀。其在活塞式发动机中的用来控制空气的进入，提升阀在气门导管中运行。

提升阀包括阀头和阀杆，用于内燃机。阀头的表面覆盖有薄膜。薄膜由陶瓷制成。在阀头的前面固定有隔热板，以便在前面和隔热板之间形成绝热空间，由此降低阀的运行温度。

A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine.

It consists 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 portion of the hole where the plug meets with it is referred to as the 'seat' or 'valve seat'. The shaft guides the plug portion by sliding through a valve guide. In exhaust applications a pressure differential helps to seal the valve and in intake valves a pressure differential helps open it. Poppet valves date from at least the 1770s, when James Watt used them on his steam engines.