English Dictionary

poppet valve

noun

(mechanics) A valve (as in an internal combustion engine) which consists of a sliding shaft with a disk on the end (the disk being shaped to alternately plug and unplug a matching port) and which is operated by springs and possibly cams interacting with the shaft.

The poppet valve controls the flow of fluid in the engine.

意味（1）

(mechanics) A valve (as in an internal combustion engine) which consists of a sliding shaft with a disk on the end (the disk being shaped to alternately plug and unplug a matching port) and which is operated by springs and possibly cams interacting with the shaft.

This communication between the tank and pump is controlled by a float valve in the tanks and a cock in the pipe, while a poppet valve prevents the undrawn liquor going into the waste tank.