Patent ID: 7213587

Claim:
An adjustable two-way valve device for a combustion engine, comprising: a first outlet or inlet channel; a second outlet or inlet channel; a valve plate having a first passage opening of the first outlet or inlet channel and a second passage opening of the second outlet or inlet channel; a third outlet or inlet channel; and a rotary valve element having at least one control opening corresponding to one or both of the passage openings of the first and second outlet or inlet channels; wherein the valve element is disposed to controllably open or close fluid connections between the third outlet or inlet channel and one or both of the first outlet or inlet channel and the second outlet or inlet channel, so that the openings corresponding to the first outlet or inlet channel and the second outlet or inlet channel are made independently of one another or dependent on one another, wherein the valve element comprises a valve disk, and the at least one control opening of the valve element extends in a circumferential direction over an angular area α essentially equal to an angular area spanned by central axes of the two passage openings running through a central point of the valve plate.