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 ...

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 ...

American publisher Charles Knight was not at all impressed with his new 1901 Knox ‘gasoline runabout’. Like some other cars of the era, its four-stroke engine relied on a single valve to permit both ...

Called Valvematic, the new Toyota system combines VVT-i (Variable Valve Timing-intelligent), which continuously controls the intake valve opening and closing timing, with a new mechanism that ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Japan's Toyota Motor Corp. said June 12 it had developed a next-generation engine valve mechanism that can improve the fuel efficiency of petrol-powered vehicles by about 5% to 10%. The new system ...