Welcome to Mechadyne: The Variable Valve Actuation Specialists

Mechadyne researches and develops advanced valvetrain systems for internal combustion engines.
Our proven cost-effective technologies use Variable Valve Actuation (VVA) to produce greener, more efficient engines. Click here for more company information

Our Products

PICTURE: A variable lift and duration - VLD - upper rocker, a twin-output cam phaser, and an assembled single cam phaser - SCP - camshaft

  • Concentric cams
  • Cam phasers
  • Variable lift
VVA Products

Engine R & D

  • Innovation
  • 3D CAD
  • Cam design
  • Valvetrain design
  • Prototype test
Learn more

Upgrade Path

PICTURE: Shows the upgrade path with a standard finger follower system going to adjacent lobe phasing using an SCP camshaft and then to VLD - our variable lift system.

  • 3 VVA Spec's
  • Modular systems
  • One head design
Upgrade info

Reference

  • Our Papers
  • VVA Links
  • Clean Diesels
  • Green engines
  • VVA discussion
VVA Reference

Our Business

Mechadyne is a technology licensing company, granting licences to automotive manufacturers to use our patented systems. Business info

Market

Our VVA systems have a potential market of $1.5 billion a year. Market info

Emissions

VVA is key to meeting future emissions legislation.
Our green technologies reduce emissions and improve fuel economy. Emissions info

What is VVA and Why Do You Need it ?

All internal combustion engines use valves to control the flow of gasses into and out of the combustion chamber.  The precise timing, duration and extent to which these valves open significantly affects all aspects of engine performance - from power and torque to fuel economy and emissions.

With fixed valve events, it is impossible to optimise an engine's performance over the complete range of operating conditions without significant compromise.   Variable Valve Actuation removes this constraint by allowing us to change the valve event to give optimum performance whenever it is required.

Latest News:

New CEO at Mechadyne

January 2010

After serving as a Non-Executive Director for several years at Mechadyne, the Board is delighted to announce that Mike Hawkins has accepted their invitation for him to become their new Chief Executive Officer.

Mike has extensive experience and knowledge of the engine business that is highly relevant to Mechadyne and we are sure he will make a valuable contribution to Mechadyne's future operations and success.

Click here for Mike's profile

Concentric Cam Video

April 2009

MAHLE, who manufacture our concentric camshaft under licence for the Dodge Viper engine, have produced an excellent video of how the cam is assembled and how it works. Click here to go to news section and see video