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 'Intelligent Valve Actuation ( IVA)' system that operates the intake and exhaust valves that are arguably installed in gasoline and diesel engines with only the power of an electric motor is a ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

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 ...

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

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 ...

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