Honda Variable Cylinder Management Engine

Honda New Zealand have a really nice explanation of their ‘Variable Cylinder Management’ technology. The idea behind this is similar to the Scalzo Piston Deactivation Engine in that it reduces pumping losses in the engine at part load. The great thing about Honda’s system is that it utilises the already proven VTEC technology to achieve a similar effect. The disadvantage compared with the Scalzo engine is that it cannot remove the friction losses as the pistons are still connected to the crank shaft and still move up and down in the bore. The Honda v6 engine can run on 6, 4 or 3 cylinders.

http://www.honda.co.nz/technology/emissions/vcm/

 

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