Variable valve timing
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In internal combustion engines, Variable valve timing (VVT), also known as Variable valve actuation (VVA), is a generalized term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine. VVT allows the lift, duration or timing (in various combinations) of the intake and/or exhaust valves to be changed while the engine is in operation. Two-stroke engines use a power valve system to get similar results to VVT. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems.
- See also: Wikipedia
- Related: Helical camshaft, Corliss Orville Burandt
| Mechadyne International's information on the Dodge... Mechadyne International's information on the Dodge Viper VVT system www.mechadyne-int.com/vva-home/dodge-viper - Web |
| Honda Technology Picture Book, VTEC Honda Technology Picture Book, VTEC world.honda.com/automobile-technology/VTEC/ - Web |
| Delphi Variable Cam Phasers (VCP) Delphi Variable Cam Phasers (VCP) delphi.com/manufacturers/auto/powertrain/gas/valvetrain/vcp/ - Web |
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| SAE International SAE International www.sae.org/automag/toptech/02-2001/toptech5.htm - Web |
| Find Articles Find Articles www.findarticles.com/p/articles/mi_m0KJI/is_10_116/ai_n6277206 - Web |
