i vtec
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GOVERNMENT ENGINEERING COLLEGEVALSAD
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i-VTEC ENGINE TECHNOLOGY
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NEED OF i-VTEC -:• excellent fuel efficiency• superb performance• cleaner emissions• driving comfort
i-VTEC-:• i-VTEC is the acronym for intelligent VTEC (Variable Valve
Timing and Lift Electronic Control), an evolution of Honda's VTEC engine.
• The i-VTEC engine works by controlling the timing and lifting of the camshafts depending on engine speeds.
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The General diagram of four stroke IC engine
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The valves open smaller during low engine speeds to achieve maximum fuel efficiency.
The valves will open bigger at higher engine speeds to achieve higher performance.
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•key advantages of i-VTEC -:
1. Class-leading power and fuel efficiency.
2. High performance and low fuel consumption in a single engine.
3. i-VTEC regulates the opening of air-fuel intake valves and exhaust valves in accordance with engine speeds.
4. By regulating valve opening to match engine speed, the agile i-VTEC engine adjusts its characteristics to realize both superior power and low fuel consumption.
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