Variable valve timing (VVT) and variable valve lift (VVL) have very similar names, both referring to variable valve performance. Does that mean that they are basically the same thing? The are most ...

Abstract: This paper presents an optimal tracking control of engine valve timing for an electro-hydraulic variable valve actuator utilizing the adaptively estimated supply pressure that is the main ...

5 Known For Valve Problems These problematic turbo V6 engines suffer from fundamental design compromises, including inadequate valve cooling and inferior metallurgy, that create perfect conditions for ...

There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

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 differences. Variable valve lift is used to ...

A proportional solenoid valve is an electromagnetic valve designed to respond to a variable power input to regulate the flow of liquid and/or gas proportionately. It is used to control the flow rate ...

BorgWarner has patented a variable cam timing phaser with a lock pin that acts as a shutoff valve, preventing oil leakage from advance and retard chambers. This innovation maintains oil in the phaser ...

April showers bring May flowers and along with flowers, some weather-related variables such as heat, humidity, and pollen! For many drivers that means getting their vehicles' A/C working to perfection ...

Suzuki Hayabusa may get VVT tech Variable Valve Timing to offer more performance Hayabusa to meet next-gen emission regulations Recently published patent documents indicate that the Suzuki Hayabusa ...

Does your Toyota have a VVT-i (Variable Valve Timing with Intelligence) engine that has developed a noticeable rattle whenever you start the engine? If so, then you will want to know what is going on ...