Share this entry
valve gear Line breaks: valve gear

Entry from British & World English dictionary

Definition of valve gear in English:


The mechanism that controls the opening and closing of the cylinder valves in a steam engine or internal-combustion engine.
Example sentences
  • Without a way to rebuild the engine at the track, he sat out the rest of qualifying and rolled the car out for the first round of eliminations with the valve gear on the offending cylinder disabled, so the car was running on three cylinders.
  • The engine features refinements such as a redesigned alternator, an engine-mounted air-filter and valve gear utilising roller-ended rocker arms.
  • So long a run could not have been achieved before modification of the valve gear, as the high coal consumption would have emptied the tender of fuel far from ‘home’.
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources