Valve Float
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Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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 performance and potentially increases engine emissions. Valve loft is utilizing a controlled float to increase lift and duration of the valve open cycle. In some motorsports there are rules that limit camshaft lift; therefore, provoking this type of exploitation. By properly optimizing the system, one can actually achieve this without undue stresses added to the camshaft lobes and tappets (lifters). Valve bounce is a related condition where the valve does not stay seated, due to the combined effects of the valve''s inertia and resonance effects of metallic valve springs that effectively reduce the closing force, and allow the valve to re-open partially.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786131377884
- Genre Technik
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Anzahl Seiten 120
- Herausgeber Betascript Publishing
- Größe H220mm x B220mm
- EAN 9786131377884
- Titel Valve Float
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