Patent ID: 11927974
Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
Field: Control (Instruments)
Classification: CPC G  F | IPC F  G

Claim 0:
1. A flow rate control device formed inside a pipe through which a fluid flows, comprising:
a main plate formed inside the pipe so as to face a fluid flow direction and including a through hole formed at the center thereof, the through hole having a perimeter;
a sub-plate disposed in front of the through hole of the main plate, the sub-plate having a circumference, and corresponding to the size of the through hole; and
a cylindrical column connecting the perimeter of the through hole and the circumference of the sub-plate to each other, the column having a length from the through hole to the sub-plate, the column including a side surface and a plurality of holes in the side surface for discharging the fluid through the column, the plurality of holes being formed in a circular shape or a polygonal shape, and wherein the plurality of holes are configured to be expanded and contracted by a pressure applied to the sub-plate; and
wherein the sub-plate is displaced by inflowing fluid, and wherein the column has a compliant structure such that the length of the column decreases as the sub-plate is displaced by the inflowing fluid, and
wherein a hole is formed at the center of the sub-plate, and ends of a plurality of guides having a rod shape are attached to a rear surface of the sub-plate.