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valve spring

noun

  1. a helical spring used to hold closed a valve in the cylinder head of an internal-combustion engine
  2. any spring that closes a valve after it has been opened mechanically or by flow pressure
“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 problem emerged because one of Toyota's two suppliers of the engine valve spring did not properly maintain the equipment used to make the part.

From Reuters

Sunday, Stewart and Gordon had valve spring issues, forcing them to the garage during the first half of the race.

A large valve would weigh more than two smaller valves having an area slightly larger in the aggregate; it would require a stiffer valve spring on account of its greater weight.

This may be owing to a bent valve stem, a weak or broken valve spring or an accumulation of burnt or gummed oil between the valve stem and the valve stem guide.

Many forms of valve spring lifters have been designed to permit ready removal of the valves.

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valve liftervalve stem