Patent ID: 8701603

Claim:
A control valve unit for controlling fluid flow in a cooling liquid circuit for an internal combustion engine, comprising: a valve housing ( 1 ) including at least one first inlet opening ( 2 ) or first outlet opening ( 2 ′); at least two second outlet openings ( 31 , 32 , 33 ) or at least two second inlet openings ( 31 ′, 32 ′, 33 ′); at least two closing elements ( 41 , 42 , 43 ) axially movable and operable to close off flow between said first opening and said second openings; a control device ( 22 ) actuating opening and closing of said at least two closing elements ( 41 , 42 , 43 ) in order to selectively open or close a correlated second outlet opening ( 31 , 32 , 33 ) or second inlet opening ( 31 ′, 32 ′, 33 ′); wherein each of said at least two closing elements ( 41 , 42 , 43 ) is adjustable continuously by said control device ( 22 ) between a maximum open position and a closed position in which it is forced onto a seat ( 5 ) and in this way blocks said flow; wherein said control device ( 22 ) comprises at least one moveable or rotatable cam ( 6 ) and at least two cam paths ( 71 , 72 , 73 ) that are each correlated with respective closing elements ( 41 , 42 , 43 ) to continuously adjust said respective closing elements ( 41 , 42 , 43 ); wherein said at least two closing elements ( 41 , 42 , 43 ) are each secured to a follower pin ( 11 ); wherein movement or rotation of said rotatable cam ( 6 ) adjusting said at least two closing elements ( 41 , 42 , 43 ) is realized by an actuator ( 8 ); wherein the control valve unit ( 21 ) is arranged downstream of the internal combustion engine relative to the liquid flowing through.