Valves

BMW S 1000 RR valvetrain – Click above to watch the video after the break

Swedish company Cargines has announced that they have readied a new engine valve technology that they promise will be quite revolutionary. According to their website and a brief piece of news in the Swedish car press, the technology features pneumatic control of engine valves. According to the company, this gives individual and very precise control of valve timing and opening. Although no numbers were announced, the company claims that the new system reduces fuel consumption and CO2 e

Mechanically actuated valves may soon be a thing of the past. We've made over a century's worth of improvement on the same basic combination of a camshaft, followers (or lifters), a poppet valve and a spring. We've gone from using pushrods and rocker arms to actuate the valvetrain to direct-acting buckets motivated by an overhead camshaft with variable phasing and lift. While engineering ingenuity has managed to wring incredible performance and flexibility out of these setups, there's only so fa