So, the dual (VVT) system, helps the engine “inhale” and “exhale” more efficiently. Dual – (VVT) – Continuously varies the timing, of the intake and exhaust camshaft. Single – (VVT) – Continuously varies the timing, of the intake camshaft.(VVT) Variable Valve Timing Basically Comes In Two Types: Also, that, in turn, changes the duration of the valve lifting, to control intake and exhaust. Finally, this increases or decreases, the speed of the camshaft in relation to the engine’s drive timing. Consequently, changing their speeds, relative to one another momentarily. So, when oil pressure is introduced, the gears can be separated. Normally, the two are meshed together, cog against cog, and turn at the same rate. The inner gear, connects to the camshaft itself. The outer gear, is the camshaft gear’s connection to the belt or chain that drives it. Visualize this as a hollow, enclosed gear inside where two star-shaped gears are placed, one inside the other. So, How Does (VVT) Variable Valve Timing Work (VVT) variable valve timing, alters the timing of valve lifting to improve performance and economy, in specific driving situations. Finally, using various mechanisms, to control the aforementioned valve characteristics. To do this, various sensors, such as airflow and camshaft position sensors feed information to the car’s (ECU). Valve lift – How much the valves physically open, (their opening aperture).Duration – How long the valves, stay open.Valve timing – The points in the piston’s movement, at which the valves open and close.(VVT) Variable Valve Timing technology, controls three key characteristics of the intake and exhaust valves: Adjustments in the overlap time, between the exhaust valve closing and intake valve opening results in improved engine efficiency. Note: Only the intake is involved.Īlso, depending on the engine’s needs, the system may rotate the camshaft in the advanced or retarded direction. As a result, optimizing intake valve timing for operating conditions. So, the (VVT) variable valve timing system, uses engine oil pressure to change the position of the intake camshaft. Most importantly, to control the valve timing and how long the intake and exhaust valves remain open. Manufacturers have now adopted, various (VVT) variable valve timing, design approaches and technologies. So, as engine technologies improve and become less expensive (VVT) variable valve timing, continues to improve performance and economy. (VVT) Variable Valve Timing - How Does It Work - How Can It Fail (VVT) Variable Valve Timing, is a 2-stage, hydraulically controlled cam phasing system.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |