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| | Rocker ArmA lever that transmits the action of the cam, usually by means of a push rod, to the stem of the intake or exhaust valve, sometimes also to the starting-air valve and fuel valve.
  
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| Science & Engineering Encyclopaedia Version 2.4 © 2001-2010 Dirac Delta Consultants Limited | ||||||
The rocker arm highlighted on a Bentley BR.1 Rotary engine.