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公开(公告)号：US11927974B2
公开(公告)日：2024-03-12
申请号：US17528365
申请日：2021-11-17
Applicant: Korea Aerospace Research Institute
Inventor： Kwang Kun Park , Jun Seong Lee , Kee Joo Lee
Abstract: The flow rate control device includes a main plate corresponding to an inner diameter and including a through hole which is formed at the center thereof and through which a fluid flows, a sub-plate corresponding to a size of the through hole, disposed in front of the main plate, and applied with a pressure of the flowing fluid, and an expansion and contraction flow path formed to connect the through hole and a circumference of the sub-plate to each other and expanded and contracted by the pressure applied to the sub-plate. The expansion and contraction flow path includes a plurality of holes which are formed in a side surface thereof and through which the flow flows, and has a cross-sectional area changed by the pressure to control a flow rate.
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公开(公告)号：US11691759B2
公开(公告)日：2023-07-04
申请号：US17546400
申请日：2021-12-09
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Sung Hyuck Im , Jun Seong Lee , Kee Joo Lee , Jae Sung Park
IPC: B64F1/02
CPC classification number: B64F1/0297
Abstract: A projectile landing apparatus for retrieving a projectile includes a plurality of grippers disposed to be spaced apart. The plurality of grippers may include a support, a guide having one side connected to one end of the support, and a shock absorber having one end connected to the other end of the support and having the other end connected to the guide. The plurality of grippers may guide a projectile, buffer a load, and safely retrieve the projectile.
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Patent Agency Ranking
公开(公告)号：US20220163982A1
公开(公告)日：2022-05-26
申请号：US17528365
申请日：2021-11-17
Applicant: Korea Aerospace Research Institute
Inventor： Kwang Kun Park , Jun Seong Lee , Kee Joo Lee
Abstract: The flow rate control device includes a main plate corresponding to an inner diameter and including a through hole which is formed at the center thereof and through which a fluid flows, a sub-plate corresponding to a size of the through hole, disposed in front of the main plate, and applied with a pressure of the flowing fluid, and an expansion and contraction flow path formed to connect the through hole and a circumference of the sub-plate to each other and expanded and contracted by the pressure applied to the sub-plate. The expansion and contraction flow path includes a plurality of holes which are formed in a side surface thereof and through which the flow flows, and has a cross-sectional area changed by the pressure to control a flow rate.
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公开(公告)号：US11926441B2
公开(公告)日：2024-03-12
申请号：US17555848
申请日：2021-12-20
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Sung Hyuck Im , Jun Seong Lee , Kee Joo Lee , Jae Sung Park
Abstract: An orbit transition apparatus that transitions an orbit of a payload in outer space includes a rotating body, an adapter disposed on a center part of the rotating body for docking a payload, a launch module disposed outside of the rotating body for launching the payload, and a thruster for rotating the rotating body. The launch module may launch the payload to a target orbit.
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公开(公告)号：US11629670B2
公开(公告)日：2023-04-18
申请号：US17516465
申请日：2021-11-01
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Keum Oh Lee , Byoung Jik Lim , Kee Joo Lee
Abstract: An injection device for injecting an oxidizer for a liquid rocket includes a housing, a plate disposed inside the housing and having an injection hole to eject an oxidizer, a duct disposed above the plate to guide the oxidizer, and a manifold with one end connected to the injection hole of the plate and the other end connected to the duct, wherein the oxidizer may be distributed to the injection hole at an equal flow rate.
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公开(公告)号：US11598290B2
公开(公告)日：2023-03-07
申请号：US17539846
申请日：2021-12-01
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Keum Oh Lee , Byoung Jik Lim , Jun Sung Lee , Kee Joo Lee , Jae Sung Park
Abstract: A combustor of a liquid rocket engine includes a nozzle unit including a regenerative cooling channel, in which the nozzle unit includes a fuel manifold outer shell, a combustor inner shell, and a combustor outer shell having a downward channel inlet, and the combustor includes a fuel inlet connected to a nozzle neck of the nozzle unit, a fuel manifold formed between the fuel manifold outer shell and the combustor outer shell, and in which fuel introduced from the fuel inlet flows, a downward channel connected in communication with the fuel manifold through the downward channel inlet, and extending in a downward direction from an upper portion of the combustor, a diverting manifold provided at a distal end of the nozzle unit and connected in communication with the downward channel, and an upward channel connected in communication with the diverting manifold and extending in an upward direction of the combustor.
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公开(公告)号：US20220258883A1
公开(公告)日：2022-08-18
申请号：US17546400
申请日：2021-12-09
Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
Inventor： Sung Hyuck Im , Jun Seong Lee , Kee Joo Lee , Jae Sung Park
IPC: B64F1/02
Abstract: A projectile landing apparatus for retrieving a projectile includes a plurality of grippers disposed to be spaced apart. The plurality of grippers may include a support, a guide having one side connected to one end of the support, and a shock absorber having one end connected to the other end of the support and having the other end connected to the guide. The plurality of grippers may guide a projectile, buffer a load, and safely retrieve the projectile.
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