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Explanation of Variable Valve Terminology

ED
ChiNovex Tech Writers Author Team
L
Leo Technical Reviewer
Published: May 03, 2025 Updated: Jul 09, 2026

Automotive engine valve timing mechanisms and technology, also known as Continuous Variable Valve Timing (CVVT) systems, are widely adopted technologies in today's high-performance engines. Equipped with control and actuation systems, this system can adjust the engine cam phase or valve lift to optimize the engine's gas distribution process.

Variable valve timing (VVT) technology has become a standard feature in modern engines. To further unlock the potential of traditional internal combustion engines, engineers have further developed variable valve lift (VVL) technology based on this. When these two technologies are effectively combined, they can provide higher intake and exhaust efficiency for the engine across various operating conditions and RPMs, thereby enhancing power and reducing fuel consumption.

This article was compiled by the ChiNovex Editorial Team based on verified industry technical specs. References: AutoHome Tech Database & Chinese Automotive Standards. For inquiries on specific models or configurations, please contact our exporting team.