What is VVL? What is VVT? How does VVL/VVT work? What is variable valve lift? What is variable valve timing? We're going to look at the valvtrain from a 2009 Audi 2.0L I4 Turbo engine to check out the ...

The heart of most vehicles today, the internal combustion engine has advanced significantly over its century long history. This series outlines some of the key innovations in engine technology before ...

低速トルクと高速のパワーを両立するエンジンのシステム VTEC＝ブイテックとは、Variable valve Timing and lift Electronic Control systemの略で、可変バルブタイミング・リフト機構のひとつ。レシプロエンジンのエンジン特性は、簡単にいえば、バルブの開閉量と ...

GM has announced that all V-8 powered Chevrolet and GMC trucks now feature variable valve timing (VVT) for the 2010 model year. A quick trip back to engineering 101 reminds us that VVT is a piston ...

かつて低燃費とハイパワーを両立したVTEC ホンダエンジンの看板技術になっているi-VTEC。燃費と実用性とハイパワー、環境性能をすべて兼ね備えたホンダならではのシステムだ。 i-VTECは「intelligent-Variable valve Timing and lift Electronic Control system」の略で、高知能 ...

You'd think that 150 years would be long enough to solve a problem, but no such luck. Since the first four-stroke internal combustion engine rolled out the gate in the late 1800s, engineers have been ...

You'd think that 150 years would be long enough to solve a problem, but no such luck. Since the first four-stroke internal combustion engine rolled out the gate in the late 1800s, engineers have been ...

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, ...

VTEC stands for Variable Valve Timing and Lift Electronic Control and represents a variable valve control system developed by Japanese car manufacturer Honda for its gasoline engines. The system was ...