crankshaft timing gear

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• timing gear — Both the gear attached to the camshaft and the gear on the crankshaft. They provide a means of driving the camshaft. This system is used where long life and hard service are expected as in commercial vehicles and race cars. Using gears is… …   Dictionary of automotive terms

• Gear ratio — The gear ratio is the relationship between the number of teeth on two gears that are meshed or two sprockets connected with a common roller chain, or the circumferences of two pulleys connected with a drive belt. General description In the… …   Wikipedia

• gear — Wheel like part with teeth cut into the rim. When one gear meshes with another gear, it causes the second gear to drive the other and in this way transmits power. When the gears are different sizes (different number of teeth on each gear) the… …   Dictionary of automotive terms

• Timing belt — For other belts, see Belt (disambiguation). Timing belt Timi …   Wikipedia

• Crankshaft — For other uses, see Crankshaft (disambiguation). Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black) The crankshaft, sometimes casually abbreviated to crank, is the part of an engine which translates reciprocating… …   Wikipedia

• timing marks — [1] Marks or notches, usually located on the vibration damper used to synchronize the ignition system so that the plugs will fire at the precise time. [2] One tooth on either the camshaft or crankshaft gear will be marked with an indentation or… …   Dictionary of automotive terms

• timing gears — noun plural : the gear train with a two to one reduction through which the crankshaft drives the camshaft and thus controls valve timing in a four stroke cycle internal combustion engine …   Useful english dictionary

• 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 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

• Bulleid chain-driven valve gear — and were based upon motor vehicle practice in an attempt to create a compact, but efficient design with a minimum of service requirements. Design principles Oliver Bulleid s decision to have three cylinders, all driving the middle coupled axle of …   Wikipedia

• valve gear — noun : any of numerous gears by which motion is given to the valves of an engine and especially a steam engine; specifically : such a gear for a steam engine by which the cutoff may be varied while the engine is running and the engine started,… …   Useful english dictionary