发明名称 INTAKE DEVICE OF INTERNAL COMBUSTION ENGINE
摘要 PROBLEM TO BE SOLVED: To provide an intake device reducing intake sound during engine low speed rotation, while securing sufficient suction air volume during engine high speed rotation, with a simple structure without requiring an actuator. SOLUTION: A main duct 3 and a bypass duct are connected in parallel to the upstream side in the intake direction of an air cleaner, and an opening-closing type valve 6 is arranged in the main duct 3. A flap 7 of the valve 6 still maintains a closing state of its passage 3a since there is a slope projection part 11 while being rotationally displaced up to an initial displacement position P2 in the opening direction in the engine low speed rotation. During the engine high speed rotation, the flap 7 of the valve 6 is further rotationally displaced, and opens the passage 3a of the main duct 3 large at once, and allows the intake air inflow to the air cleaner together with the bypass duct. COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010053701(A) 申请公布日期 2010.03.11
申请号 JP20080216531 申请日期 2008.08.26
申请人 MAHLE FILTER SYSTEMS JAPAN CORP 发明人 YASUDA YUJI;SHINADA MASAFUMI
分类号 F02M35/14;F02M35/024;F02M35/104;F02M35/108 主分类号 F02M35/14
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