What is Intelligent Variable Valve Timing (VVT-I) Technology?

What is Intelligent Variable Valve Timing (VVT-I) Technology? – Having a car with optimal fuel efficiency is the hope of most car owners. Because with an efficient car, automatically the budget for buying fuel can be trimmed and more efficient.

What is Intelligent Variable Valve Timing (VVT-I) Technology?

Especially in this article, we will discuss what VVT-I technology is and what impact it has on the engine. VVT-I is a system that is able to adjust the valve working time to achieve the best conditions from the start of the engine idling to high rpm (from low RPM to high RPM).

Intelligent Variable Valve Timing (VVT-I) Technology
Engine Dual VVT-i how it works.

The benefits of using VVT-I technology on machines are:

  • Save fuel
  • Generate great power
  • Minimized exhaust gas emissions

The valve mechanism on machines equipped with VVT-I has a variety of valve opening and closing which are regulated using oil hydraulic pressure that is adjusted to the load and engine speed.

Especially in this article, we will discuss what VVT-I technology is and what impact it has on the engine. VVT-I is a system that is able to adjust the valve working time to achieve the best conditions from when the engine is idle to high rpm (from low RPM to high RPM).

The benefits of using VVT-I technology on machines are:
1. Save fuel
2. Generate great power
3. Minimized exhaust gas emissions

The valve mechanism on machines equipped with VVT-I has a variety of valve opening and closing which are regulated using oil hydraulic pressure that is adjusted to the load and engine speed.

At the beginning of its development, the only valve that could be adjusted was the intake valve. At that time it was called single VVT-I because it only worked on some valves. But now, VVT-I has been embedded to regulate the intake valve and exhaust valve (Double VVT-I).

The type of valve actuator used is DOHC (Double Overhead Camshaft) where there are 2 camshafts mounted on the top of the cylinder head using a timing chain drive (chain). This technology also does not require a valve adjustment process. However, this also needs to be checked at a certain mileage.

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  1. Pingback: The Facts Behind Toyota's Dual VVT-i Engine | Hi-tech for Future

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