Fully variable valve train may realize continuously variable valve timing and valve lift, and so it represents development trend of variable valve technology.

全可变气门机构能实现发动机配气定时和气门升程的连续可变，是可变气门技术的发展趋势。

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Variable valve train enables the engine to achieve the best valve timing at a very high speed and load. Thus the performance of the engine can be improved.

配气可变机构可使发动机在较高转速和全负荷范围都能得到最佳配气，因而改善了发动机性能。

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Variable valve train enables the engine to achieve the best valve timing at a very high speed and load. Thus the performance of the engine can be improved.

配气可变机构可使发动机在较高转速和全负荷范围都能得到最佳配气，因而改善了发动机性能。

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