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valve gear

noun

  1. (in a reciprocating engine) the mechanism for opening and closing the valves at certain points in each stroke.


valve gear

noun

  1. a mechanism that operates the valves of a reciprocating engine, usually involving the use of cams, pushrods, rocker arms, etc
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Example Sentences

The blast was secured by a fan, and the valve-gear was worked by cams instead of eccentrics.

H B is proportional to the lift of the valve, and O H to the motion of the valve-gear when out of contact with the valve-lifters.

The joints of the valve-gear consist of pins turning in solid ferrules in the rod-ends, both hardened and ground.

The simplest valve gear depends for its action on a fixed eccentric.

The governor, the Corliss valve gear and the triple compound expansion.

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valvedvalve-in-head engine