Variable valve lift is used to enhance performance depending on the RPM and load, while variable valve timing is typically used for emissions control (lowering combustion...

Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types …

到了80年代末，随着ECU+电喷车型的普及，一项一直以来只是设想的技术终于开始被本田大规模应用在车上，那就是VVT和VVL技术。 说起这项技术，我首先给大家降为解释一下其原理吧。 …

Variable valve lift (VVL) and variable valve timing (VVT) are two of the most common dynamic valvetrain features found in modern commuter cars and even many of today’s performance cars.

Modern vehicles have the be ability to change valve timing, lift amount and duration. This has brought significant improvement in horsepower, fuel economy a...

Oct 20, 2016 · VVL主要有两种：连续可变气门升程技术（CVVL）和两级可变气门升程技术（DVVL）， 连续可变气门升程技术以BMW的valvetronic为代表： 这里简单介绍一下由上汽技 …

Jul 7, 2014 · As for VVL, my GTI's 2nd Gen EA888 has VVL. It would not make sense for VVL to be absent from the 3rd Gen EA888. MPI, as described in a Europe press-release, helps …

Jul 12, 2019 · VVT is Variable Valve timing where VVL is Variable valve lift. This is just a way that the manufacturers get the engines to be super light on petrol and give good emissions results. …

Jun 11, 2010 · I was just wondering why VW never built any engines with a Variable valve lift system, like you find with Honda Vtec, Nissan Neo VVL & RunX Rsi. I know that some G4 Gti …

Jan 11, 2017 · Variable valve lift (VVL) and variable valve timing (VVT) are two of the most popular ones. These systems sound pretty similar, but what do they actually do? Luckily, …