camshaft lobe

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• three-quarter race camshaft — A description of the customcamshaft indicating the type of lobe grinding which, in turn, dictates the type of use. Other grinds are one quarter race, full race, street grind, etc …   Dictionary of automotive terms

• VTEC — is also an abbreviation for the verocytotoxin producing Escherichia coli strain O157:H7 .: For the education institution, see Virginia Tech. VTEC (Variable Valve Timing and Lift Electronic Control) is a valvetrain system developed by Honda to… …   Wikipedia

• I-Active Valve Lift System — (AVLS) is an automobile variable valve timing technology used by Subaru. It varies the duration, timing and lift of the intake valves by using hydraulic pressure to lock two sets of independent camshaft lobes together. This system is similar to… …   Wikipedia

• Rocker arm — Generally referred to within the internal combustion engine of automotive, marine, motorcycle and reciprocating aviation engines, the rocker arm is a reciprocating lever that conveys radial information from the cam lobe into linear information at …   Wikipedia

• VVL — Nissan Ecology Oriented Variable Valve Lift and Timing (commonly known as VVL) is an automobile variable valve timing technology developed by Nissan. VVL varies the timing, duration, and lift of valves by using hydraulic pressure switch between… …   Wikipedia

• rocker arm — A curved lever that pivots in the middle. One end is attached to the top of the valve stem. In overhead valve engines the other end is attached to the push rod. In some overhead cam engines the other end is attached directly to the camshaft lobe …   Dictionary of automotive terms

• Valve float — is an adverse condition which occurs when the poppet valves on an internal combustion engine valvetrain do not remain in contact with the camshaft lobe during the valve closure phase of the cam lobe profile. This reduces engine efficiency and… …   Wikipedia

• Unit pump — Unit pumps on Mack s E7 diesel engine The Unit Pump system [1] is a modular high pressure diesel injection system, which is closely related to the Unit Injector system UI, and is designed for use in commercial vehicle diesel engines …   Wikipedia

• bucket tappet — valve lifters that are hollow, cylindrical, and closed at one end and used with some overhead camshafts. The flat, closed end of the tappet (bottom of the bucket) rests against the camshaft lobe with part of the valve spring and valve stem… …   Dictionary of automotive terms

• VVT-i — 1ZZ FE engine with VVT i VVT i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar in performance to the BMW s VANOS. The Toyota VVT i system replaces the Toyota VVT offered… …   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