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When The period of time when the intake and exhaust valves are both open is called?
Wiki User
∙ 13y ago
Its called valve overlap. It it used in the scavanging process of the engine to both ensure a clear and complete air/feul charge and to assist in keep the crown of the piston cooler.
Wiki User
∙ 13y ago
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Should the intake and exhaust valves be close when the?
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Intake valves are cooled by the gasses passing through them, exhaust valves are heated by the gasses passing through them and can be burned by overheating.
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What is the purpose of intake and exhaust valves?
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