Engine intake system

Internal-combustion engines – Means to whirl fluid before – upon – or after entry into... – Having multiple oxidant inlet means

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123 52MV, 123432, F02B 3100

Patent

active

046288791

ABSTRACT:
An improved induction system for a V type engine that improves both charging and combustion efficiency. The engine includes an induction system for each cylinder barrel that includes a pair of intake valves and respective intake passages that have a common inlet. One of the intake passages is curved and an auxiliary intake passage extends through the cylinder head and terminates at an auxiliary intake port that is disposed at one side of the main intake port in proximity to the cylinder barrel for generating a swirl to the intake charge. A plenum chamber is positioned in the V of the engine and defines two separate chambers each of which communicates with a respective one of the auxiliary intake passages.

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