| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake device of an engine which equally distributes air to a plurality of branched pipes while reducing the ventilation resistance of intake air, and can improve the output performance of the engine.SOLUTION: In an intake device 20, a plurality of branched pipes 31, 32 and 33 are formed into spiral shapes so that positions in cylinder row directions approximate an intake introduction pipe 21 as progressing toward upstream side ends 31A, 32A and 33A in intake air flow directions from downstream side ends in the intake air flow directions. A passage 22 connected to an upper face of a surge tank 24 from an oblique upper side of the surge tank 24 is formed at the intake introduction pipe 21. Furthermore, an upper face 22A of the passage 22 is inclined so that a first virtual plane V1 reaches the upstream-side end 33A in the intake air flow direction of the branched pipe 33 which is located at the other end in an alignment direction of the plurality of branched pipes 31, 32 and 33 when drawing the first virtual plane V1 in which the upper face 22A of the passage 22 is extended to the inside of the surge tank 24.SELECTED DRAWING: Figure 9 |
