INTAKE APPARATUS OF ENGINE

摘要

An intake apparatus 10 of an engine 1 includes: a first intake passage 11 supplying fresh air to a cylinder 2; a second intake passage 12 arranged near the first intake passage 11, and supplying fresh air to the cylinder 2; a first intake valve 13 opening and closing the first intake passage 11 at an aperture of the first intake passage 11; a second intake valve 14 opening and closing the second intake passage 12 at an aperture of the second intake passage 12; and a variable valve mechanism 17 controlling the opening and closing operation of the second intake valve. Further, in the intake apparatus 10 of the engine 1, an opening timing of the first intake valve 13 of the intake apparatus 10 advances relative to a top dead center, and a valve lift amount of the first intake valve 13 differs from that of the second intake valve 14, and there is a period while the valve lift amount of the first intake valve 13 is larger than that of the second intake valve 14, in an intake stroke.