What is another word for valve gear?
Pronunciation: [vˈalv ɡˈi͡ə] (IPA) 
Valve gear refers to the mechanical systems used in internal combustion engines to control the opening and closing of the intake and exhaust valves. Synonyms for valve gear include valve train, valve mechanism, valve control system, and valve actuation system. The valve train consists of components such as camshafts, lifters, pushrods, rocker arms, and valvesprings, which work together to operate the valves. The valve mechanism also refers to the entire system that controls the movement of the valves, including the camshaft and associated components. Valve control system and valve actuation system both describe the process of opening and closing the valves, while valve train and valve mechanism are broader terms that encompass all the components that make up the system.
