| 摘要 |
PURPOSE: A vehicle intake manifold is provided to supply sufficient air, and to prevent lowering of output by adjusting the sectional area of an intake manifold proportionally according to change of flow rate. CONSTITUTION: An intake manifold(10) comprises a hole(13); first fixing grooves(11); second fixing grooves(11a); a slide groove(12); a hollow louver(23) having a first stopper(21) inserted to the fixing groove and a fixed end(22); and a variable unit inserted to the fixed end of the hollow louver and the second fixing groove. The intake manifold connects a surge tank and an intake port of a cylinder head, and has a fuel injector with the hole in the upper part. The complete combustion is performed, and the lowering of the output is prevented by supplying the optimal air to a cylinder with varying the sectional area according to pressure of the intake manifold during traveling.
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