Valve guide to prevent overheating of the exhaust valve

摘要

According to this study, in order to prevent the exhaust valve (12) from overheating, a valve guide (10) is provided; the valve guide (10), the guide host (26) passing through the hole (14) of the valve (12), and half of the guide host (26) protrude towards the combustion chamber as a whole It consists of a thin roll (16).According to the above structure of this study, the phenomenon of neck overheat close to the head of tail gas chamber is prevented, thus the service life of ballast cloth is increased, and the flow of exhaust port is smooth.