| 摘要 |
Invention relates to a fluid flow control device for an internal combustion piston engine, which engine com-prises fluid flow system having a main fluid channel and a branch channel which branches from the main fluid channel, and in which fluid flow system the fluid flow control device is arranged at a the location where the branch channel branches from the main fluid channel, the fluid flow control device (22) comprising at least two parallel valve units having two operational positions. At least one of the valve units is provided with a removably assembled restriction element effecting on the flow characteristics of the valve unit. |
