| 摘要 |
PURPOSE: A valve of a variable induction system with improved sealing property and abrasion resistance is provided to manufacture the valve with aluminum through a die-casting method and to improve air-tightness between the valve and intake manifold. CONSTITUTION: A valve of a variable induction system comprises short runners(12) and a valve body. The short runners have short air paths. The valve body opens and closes each air path of the short runners at the same time. An intake manifold(11) has long runners(13) and the short runners. The long runners have long air paths. The valve body is made of aluminum through a die-casting method.
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