Patent ID: 7240664

Claim:
A variable valve type internal combustion engine in which the intake airflow is controlled with a plurality of intake valves, comprising a plurality of intake ports provided in each cylinder, an intake valve which individually opens and shuts each intake port, a variable valve gear which continuously and changeably sets at least one of the lift amount and the open valve period of each intake valve, and a control means in which at least one of the lift amount and the open valve period of plural intake valves can be set independently for each intake valve, and the operation modes of said plural intake valves in one cylinder can be set respectively and independently according to the operating states of the internal combustion engine, wherein said control means stops at least one of said plural intake valves provided in one cylinder in a low air amount region and operates at least one other of said plural intake valves in the low air amount region, and at least two of the plural intake valves are operated in medium and high air amount regions.