TAPPET Meaning and
Definition
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A tappet is a mechanical component used in internal combustion engines to transfer motion from a rotating camshaft to other engine parts. More specifically, it is a small lever or arm that slides against the protruding portions (lobes) of a camshaft, which then pushes or allows the movement of other engine components like valves or fuel injectors.
Typically made of steel or cast iron, a tappet rests directly on the camshaft, running along its surface as it rotates. The shape and design of the camshaft lobes dictate the motion and timing of the tappet, thus determining the engine's valve and fuel injection timing. As the camshaft rotates, the lobes lift the tappets, opening and closing the valves at the correct moment in the engine cycle.
Tappets play a crucial role in ensuring proper engine performance and timing. They provide a reliable means of transferring the motion from the camshaft to the valves or injectors, allowing for precise control over the combustion process. Properly adjusted tappets are essential to maintain engine efficiency, minimize noise, and prevent damage to the valvetrain components.
Given their vital function, tappets are subject to wear and, consequently, require periodic maintenance or replacement. Variations in engine design may result in different types of tappets, such as hydraulic tappets that self-adjust to compensate for wear, or mechanical tappets that need manual adjustment.
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In mech., a small lever or projection intended to tap or touch lightly something else with a view to change or regulate motion.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for TAPPET
Etymology of TAPPET
The word "tappet" has its roots in Middle English and Old French. It is derived from the Old French word "tapete", meaning a small carpet or covering. In turn, "tapete" comes from the Latin word "tapēs", which also refers to a carpet or hanging cover. The term "tappet" was originally used in mechanical contexts to describe a lever or projection that moves a part within a machine, resembling a carpet or covering in its function. Over time, the term became specifically associated with engine components, such as the valve tappets found in internal combustion engines.
Similar spelling words for TAPPET
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