公开(公告)号：US11918781B2

公开(公告)日：2024-03-05

申请号：US17254994

申请日：2019-05-27

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Poo Min Park ,  Hyung Mo Kim ,  Tae Choon Park ,  Young Seok Kang ,  Jae Sung Huh ,  Doo Yong Lee

IPC: A61M5/168

CPC classification number: A61M5/16877 ,  A61M5/16804 ,  A61M5/16813

Abstract: An infusion flow regulator includes: a main body having an inlet through which fluid is introduced and an outlet through which the fluid is discharged; and a rotary dial rotatably coupled to the main body, with a sealing member interposed therebetween, so as to regulate a flow rate of the fluid, in which the rotary dial includes a regulating flow path having a shape of a recessed groove in cross section with a first width and a first height, and the regulating flow path includes a first region in which the first width is constant and the first height is decreased, and a second region in which both the first width and the first height are decreased. By the aforementioned configuration, the infusion flow regulator for the fluid can accurately regulate the flow rate even in a region where the flow rate of the fluid is very small.

公开(公告)号：US10378550B2

公开(公告)日：2019-08-13

申请号：US14772149

申请日：2012-12-18

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Byeung Jun Lim ,  Tae Choon Park ,  Young Seok Kang

IPC: F02D27/00 ,  F04D27/02 ,  F04D29/52 ,  F04D29/68 ,  F04D19/00 ,  F04D27/00

Abstract: An apparatus for preventing an axial-flow compressor from stalling by employing a casing treatment includes an outer casing having an inner wall with a slot formed to face a rotor blade, an inner casing moveable so as to open the slot in an unstable operating region and close the slot of the outer casing in a stable operating region, and a drive means for moving the inner casing along the axial direction of the outer casing. Thus, the apparatus can be applied not only to a casing treatment structure where the slope of a slot does not vary with the rotational position of the rotor, but also to a casing with a variously shaped slot such as a radial slot or an axial skewed slot.