| 主权项 |
1. A flow control device, comprising:
a body including a first end, opposite second end, the body having a first flow channel and a second flow channel, the first flow channel with a first pipe diameter, the second flow channel with a second pipe diameter, the second pipe diameter is greater than the first pipe diameter, the first flow channel punching through a first end to form a first opening, the second flow channel punching through a second end to form a second opening, the first flow channel connecting with the second flow channel via a third opening; a plug accommodated in the second flow channel; a laminar flow layer accommodated in the second flow channel and fixed on an inside wall of the second flow channel; and a telescopic device accommodated in the body and connecting between the laminar flow layer and the plug, a length of the telescopic device is adjustable; wherein the telescopic device being used to control a relative motion of the plug in the body, to adjust the relative position of the plug and the third opening, in order to control the opening area of the third opening, so that control a flow of a fluid flowing through the opening area in the body. |
