Air intake system of engine

The utility model discloses an air intake system of engine, air intake system includes: the intake duct, the intake duct setting is in the cylinder head of engine, the (air) intake valve, the (air) intake valve activity sets up and circles at the intake valve seat of cylinder head, vortex generator, vortex generator fixes on the (air) intake valve, and vortex generator extends from the outer periphery of the (air) intake valve head guide arm to the (air) intake valve. The utility model discloses a structure that changes the impeller on the (air) intake valve substitutes change intake duct shape and realizes discharge coefficient's the adjustment when of the engine vortex, need not redesign intake duct and intake duct casting mould to simplify the control mode and the control degree of difficulty, made air intake system of engine's uniformity and precision be protected, still reduced the time and the economic cost of development. 本实用新型公开了一种发动机的进气系统，进气系统包括：进气道，进气道设置在发动机的气缸盖内；进气门，进气门活动设置在气缸盖的进气门座圈上；涡流发生器，涡流发生器固定