Type Synthesis of Mechanisms for Variable Valve Actuation

Paper #:
  • 930818

Published:
  • 1993-03-01
Citation:
Wampler, C., "Type Synthesis of Mechanisms for Variable Valve Actuation," SAE Technical Paper 930818, 1993, https://doi.org/10.4271/930818.
Pages:
9
Abstract:
“Variable Valve Actuation” (VVA) refers to any method of opening and closing engine intake and exhaust valves in a way that can be varied during engine operation. This report considers purely mechanical means of producing variable valve actuation. In particular, we tabulate all types of planar mechanisms for converting a single rotational input (camshaft) into an oscillating poppet valve motion, up to 4 moving parts.
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