continuously variable valve timing

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• Variable valve timing — Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift or duration or timing (some or all) of the intake or exhaust valves (or both) to be changed while the engine is in operation. Two… …   Wikipedia

• Continuous variable valve timing — offers a unique ability to have independent control of the intake and exhaust valves in an internal combustion engine. For any engine load criteria, the timing of intake and exhaust can be independently programmed [1]. The main variations of… …   Wikipedia

• Variable Valve Control — VVC (Variable Valve Control) is an automobile variable valve timing technology developed by Rover and applied to some high performance variants of the companies K Series 1800cc engine.In order to improve the optimisation of the valve timing for… …   Wikipedia

• Variable displacement — is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large, multi cylinder engines. Many automobile manufacturers have… …   Wikipedia

• Variable compression ratio — is the technology to adjust internal combustion engine cylinder compression ratios on the fly. This is done to increase fuel efficiency while under varying loads. Higher loads require lower ratios to be more efficient and vice versa. Variable… …   Wikipedia

• Desmodromic valve — In general mechanical terms, the word desmodromic is used to refer to mechanisms that have different controls for their actuation in different directions. Desmodromic poppet valve in Ducati engine. A desmodromic valve is a reciprocating engine… …   Wikipedia

• List of Volkswagen Group petrol engines — These petrol engines listed below are currently in use today, by various marques of automobiles, and commercial vehicles, of the Volkswagen Group (Volkswagen Aktiengesellschaft) (VWAG).Since the Volkswagen Group is European, the engine… …   Wikipedia

• Nissan VQ engine — Manufacturer Nissan Motors Production 1994– Predecessor Nissan VE engine Nissan VG engine …   Wikipedia

• Northstar engine series — Northstar engine Manufacturer General Motors Also called Cadillac Northstar Production 1991–2010 Predecessor Cadillac HT V8 LQ1 V6 The Northstar engine series of automobile engines is General Motors most technically complex 90° V engine… …   Wikipedia

• Mitsubishi 4B1 engine — 4B1 Manufacturer Mitsubishi Motors Also called GEMA World Engine Production 2005–present …   Wikipedia

• BMW M62 — Infobox Automobile name=BMW M62/S62 manufacturer=BMW production=1994 ndash;2005 class=DOHC 90° V8 predecessor=BMW M60 successor=BMW N62 engine=3.5 L (3498 cc/213 in³) 4.4 L (4398 cc/268 in³) 4.6 L (4619 cc/281 in³) 4.9 L (4941 cc/301 in³) similar …   Wikipedia