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.

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, …

NISSAN's newly developed Variable Valve Event and Lift (VVEL) system for realizing unprecedented balance of responsiveness and power, fuel efficiency and low emissions.

Variable Valve Lift (VVL) engines can change how high the intake and exhaust valves open. This technology improves performance by adjusting valve lift for different driving situations. It uses …

Jan 4, 2025 · VVL technology allows the engine control unit (ECU) to adjust the valve lift based on the engine's operating conditions. The ECU sends commands to solenoids, which regulate oil …

Jun 11, 2025 · Variable Valve Lift (VVL) is an advanced engine technology designed to optimize the performance, efficiency, and emissions of internal combustion engines. At its core, VVL …

Abstract: Variable valve actuation (VVA) technologies are used to add flexibility to the engine’s valve train by enabling variable valve event timing, duration and/or lift. The main types of VVA …

Mar 27, 2025 · VVT advances or retards cam/valve timing, while VVL changes valve duration and lift. Those three capabilities of VVT/VVL can help engines raise miles per gallon (MPG), …

To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles. This class …

Nissan Ecology Oriented Variable Valve Lift and Timing (commonly known as VVL & VVT) is an automobile variable valve timing technology developed by Nissan. VVL varies the duration, …