| 摘要 |
PROBLEM TO BE SOLVED: To improve an intake device for a multicylinder engine for uniformizing an air-fuel ratio of all of cylinders. SOLUTION: The intake device 1 comprises: a plurality of independent intake passages 6 connected respectively with each cylinder; a common surge tank 2 connecting each of upstream ends of the independent intake passages; a plurality of fuel injection valves 7 respectively injecting fuel toward each of opening faces 8 of the independent intake passages in the surge tank; and a common intake passage 4 making intake air flow into the surge tank. The upper end openings of the plurality of independent intake passages are arranged on an approximately the same straight line, and a downstream end of the common intake passage is opened on one end of a row of the upstream end openings. A restriction means (baffle plate 10) for restricting an intake airflow flowing in the surge tank is arranged between the downstream end opening of the common intake passage and the upstream end opening of the independent intake passage at the most closest position to the downstream end opening. COPYRIGHT: (C)2006,JPO&NCIPI
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