June 19, 2007 Toyota has developed a new form of valve actuation for internal combustion engines which it claims improves fuel efficiency by 5 to 10 per cent, enhances throttle response, reduces CO2 ...

Well-made tools and machines are useful without knowing the mechanism, but sometimes they are touched by taking their eyes off of their mechanisms. There is a site which introduces the mechanism of ...

Desmodromic valvetrains allow for higher revs without needing to worry about valve float. So why do automakers not often use ...

THE purpose of the authors in producing this book has been to provide an elementary treatise on the kinematics of reciprocating steam engines and steam turbines, and to make clear to the beginner the ...

In last month's "Tech Scene," we compared the differences between Toyota's VVTL-i (Variable Valve Timing and Lift-intelligence) and Honda's VTEC (Variable Valve Timing and lift Electronic Control).