valve gear

(redirected from valve gears)

valve gear

n
(Automotive Engineering) a mechanism that operates the valves of a reciprocating engine, usually involving the use of cams, pushrods, rocker arms, etc
References in periodicals archive ?
Her interest in innovation and design is reflected in her IMechE membership application, which lists patents she took out for valve gears and for a deep-sea diving outfit.
Some of them have brass piping on the sides and complete valve gears.
The boiler and firebox were enlarged to the very limit of the loading gauge, and the front end improved with removal of the inside valve gears, the inside valves being worked by rocking levers from outside the valve gear.