Viknesh Vijayenthiran June 26, 2008 Comment Now! Audi will implement a new valve-lift system for its direct-injection 2.8L and 3.2L V6 engines in the A4, A5, A6 and A8 models that’s claimed to boost ...

Lift axles can be automatically raised or lowered when loading or unloading a vehicle with the new ILAS E air suspension valve from Haldex Commercial Vehicle Systems Lift axles can be automatically ...

March 30, 2007 Over the last century of automobile development, we have seen an enormous range of valve actuation technologies, ranging from pushrod, through single then double overhead camshafts, ...

Chevy today announced that a new engine valve technology will help the 2014 Impala sedan, coming next year, to achieve better fuel economy. The intake valve lift control system opens the valves only ...

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 ...

Honda did not invent variable valve timing or variable valve lift. In fact, Cadillac had a driver-operated variable valve timing system in production in 1903, three years before Soichiro Honda was ...

With drivers around the world looking to save money at the pump, automakers are scrambling to find new ways to improve fuel-economy in their vehicles. With the current focus on sophisticated new ...

A number of Variable Valve Actuators (VVA) has been recently proposed to improve the performances and the part load efficiency of spark ignition engines. Due to their peculiarity, these systems work ...

During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...

Q:I have a 327 in my '31 Ford that features nearly the same cam and components as the one you referenced recently in Pit Stop (Nov. '12). Since a 1.6:1-ratio rocker arm will push the valve a little ...

A novel approach using computational fluid dynamics techniques provides a way for determining the characteristics of gas passing through a gas-lift valve. In the method, CFD calculations numerically ...