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valve spring

British  

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

Example Sentences

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The first step in the design of a valve spring starts with a review of the cam lobe shape.�

From Time Magazine Archive

The same G forces that tug at the pilot move the valve spring.

From Time Magazine Archive

Naval mechanics found a broken valve spring, had to send to Camden for a new one.

From Time Magazine Archive

The cylinder head was stripped, cleaned and ported, and a Serdi valve job was topped off with new valve seals and a Pro Circuit valve spring kit, which also included keepers and spring retainers.

From Time Magazine Archive

The bottom gas valve spring is set to open at 30 to 35 mm. pressure, the top valve is hand controlled only.

From British Airships, Past, Present, and Future by Whale, George