Variable Valve Actuation Single Cylinder Research Engine

VVA Potentials

  1. Improved performance at all engine speeds through optimal filling of the chamber:
    Figure 1 - Flow chart showing stuff
  2. Better efficiency through reduced pumping loss and high turbulence through intake throttling:
    Figure 2 - Flow chart showing stuff
  3. Simultaneous improvement in efficiency and emissions through advanced combustion processes:
    Figure 3 - Flow chart showing stuff
    Figure 4 - Flow chart showing stuff
  4. Simultaneous performance and efficiency improvement by advanced cycles and higher compression ratio:
    Figure 5 - Flow chart showing stuff

Variants of Variable Valve Actuation Systems

  • Mechanical
    Various mechanical variable valve actuation systems
  • Electro-Mechanical
    Electo-mechanical variable valve actuation system
  • Electro-Hydraulic
    Electro-Hydralic mechanical variable valve actuation system diagram

Variability of Valve Opening Events with VVA Systems

Graph showing the variability of valve opening events

Page last updated: Monday 23 July 2012

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