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    ANTI-VIBRATION MOUNT USING COMBINATION OF MULTIPLE SPRINGS
    51.
    发明申请
    ANTI-VIBRATION MOUNT USING COMBINATION OF MULTIPLE SPRINGS 有权

    公开(公告)号：US20220316550A1

    公开(公告)日：2022-10-06

    申请号：US17312389

    申请日：2021-05-03

    Applicant: KOREA RAILROAD RESEARCH INSTITUTE

    Inventor： Seung-Ho JANG

    IPC: F16F15/02 ,  F16F15/06

    Abstract: Proposed is an anti-vibration mount using combination of multiple springs in which a main spring is provided between an upper frame and a lower frame to reduce vibration, and an auxiliary spring is provided at each of the side portions of the upper frame such that the direction and magnitude of a force applied by the auxiliary spring change according to the compressed degree of the main spring, so the effect of an air spring is realized only with the combination of the main and auxiliary springs which are coil springs. The anti-vibration mount includes: the upper frame allowing an object to be installed thereon; the lower frame provided under the upper frame by being spaced apart therefrom; the main spring provided between the upper frame and the lower frame; and the auxiliary spring elastically supporting each of opposite sides of the upper frame and the lower frame.

    POSITIONING METHOD AND APPARATUS FOR TERMINAL, USING VARIOUS DATA COMBINATIONS
    52.
    发明申请
    POSITIONING METHOD AND APPARATUS FOR TERMINAL, USING VARIOUS DATA COMBINATIONS 有权

    公开(公告)号：US20220034990A1

    公开(公告)日：2022-02-03

    申请号：US17505077

    申请日：2021-10-19

    Applicant: Korea Railroad Research Institute

    Inventor： Seung Min YU

    IPC: G01S5/00 ,  H04W64/00 ,  H04W24/10 ,  H04B17/318

    Abstract: A positioning method and apparatus for positioning a terminal by using various data combinations are disclosed. The present disclosure in at least one embodiment provides a positioning terminal by using data combinations, including a data collection unit for collecting n access point (AP) scan data items from each of n APs (n is a natural number), a combination generation unit for generating a plurality of data combinations by combining the n AP scan data items in units of k (k is integers from 3 up to n), a position estimation unit for estimating a plurality of preliminary positions of the terminal from the plurality of data combinations, a clustering unit configured to cluster the plurality of preliminary positions into at least one cluster according to distances or densities of the plurality of preliminary positions, and a position determination unit for determining a final position of the terminal based on at least one cluster.

    Thermal desorption system and method for oil-contaminated soil and gravel using microwave indirect irradiation
    56.
    发明授权
    Thermal desorption system and method for oil-contaminated soil and gravel using microwave indirect irradiation 有权

    公开(公告)号：US10518303B2

    公开(公告)日：2019-12-31

    申请号：US16096289

    申请日：2018-02-06

    Applicant: Korea Railroad Research Institute

    Inventor： Tae Hoon Koh ,  Dong Geun Lee ,  Han Ju Yoo

    IPC: F26B3/00 ,  F26B3/34 ,  B09C1/06 ,  B02C23/10 ,  F26B3/347

    Abstract: Disclosed are a thermal desorption system for oil-contaminated soil and gravel, using a microwave indirect irradiation method and including a microwave emission prevention device and a preheating device using waste heat, and a thermal desorption method for oil-contaminated soil and gravel, using the same. In addition, it is disclosed that an outer tube encompassing an inner tube extends to both sides and a plurality of ring-shaped microwave attenuation units are arranged on the inner circumferential surface of the outer tube, such that microwaves are prevented from leaking between the inner tube and the outer tube, thereby enabling eco-friendliness, and even the waste heat generated during a pollutant desorption process is utilized in the system itself, thereby enabling economic feasibility to increase further.

    Active pressurization system making use of platform track area upper slab of underground train station
    59.
    发明授权
    Active pressurization system making use of platform track area upper slab of underground train station 有权

    公开(公告)号：US09421983B2

    公开(公告)日：2016-08-23

    申请号：US14366817

    申请日：2012-06-01

    Applicant: Dong Hyeon Kim ,  Ho Seok Lee

    Inventor： Dong Hyeon Kim ,  Ho Seok Lee

    IPC: B61B1/02 ,  E21F1/00

    CPC classification number: B61B1/02 ,  E21F1/00

    Abstract: The present invention relates to an active pressurization system making use of a platform track area upper slab of an underground train station. A track area, where a fast train and a slow train pass through an underground train station, is divided into a fast-train running space and a slow-train running space by means of a partition wall. Formed in an upper slab of the train station, there are a first and a second air-stream out- and in-flow space respectively linking to the fast-train running space and the slow-train running space. The front end of the second air-stream out- and in-flow space is provided with a first port and a first damper, while the rear end is provided with a second port and a second damper. The second air-stream out- and in-flow space is provided with a third port for venting of the slow-train running space. The first air-stream out- and in-flow space is provided with a fourth port for venting of the fast-train running space. When a fast train is running, a control panel that receives a sensing signal input from a pressure sensor for sensing pressure ensures that, on the slow-train running space where there is no slow train waiting, the first and second ports are closed and the first and second dampers are open and the third port is open and on the fast-train running space the fourth port is open, while on the slow-train running space where there is a slow train waiting, the first and second ports are open and the first and second dampers are closed and an air supplying and venting fan is driven in such a way as to supply air to the slow-train running space where there is a slow train waiting. The present invention makes it possible to solve the problem of ringing in the ears of waiting passengers by providing the fast-train running space where fast trains pass through and the slow-train running space where slow trains either stop or pass through, and by actively adjusting the supply and venting of air.

    ELECTRIC RAIL CAR DOOR STRUCTURE
    60.
    发明申请
    ELECTRIC RAIL CAR DOOR STRUCTURE 有权
    电动车门结构

    公开(公告)号：US20160075348A1

    公开(公告)日：2016-03-17

    申请号：US14785321

    申请日：2014-04-29

    Applicant: KOREA RAILROAD RESEARCH INSTITUTE

    Inventor： Moo Sun KIM ,  Jai-Sung HONG ,  Jae-Ho LEE ,  Kang-Mi LEE ,  Dong-Uk JANG ,  Jung-Tai KIM ,  Taesik KIM

    IPC: B61D19/02 ,  E06B7/215 ,  B61D19/00

    CPC classification number: B61D19/02 ,  B61D19/005 ,  E06B7/215 ,  E06B2007/202

    Abstract: A door structure of an electric rail car is provided to block outside noise and vibration. The door structure of the electric rail car includes a door frame, a guide rail and a sealing device. The door frame has an opening thereinside. The guide rail guides an opening and a closing of the door frame. The sealing device is inserted into the opening, descends to make contact with the guide rail when the door frame is closed, and ascends to be spaced apart from the guide rail when the door frame is open.

    Abstract translation: 提供电动轨道车的门结构，以阻挡外界的噪音和振动。 电动轨道车厢的门结构包括门框，导轨和密封装置。 门框有一个开口。 导轨引导门框的开口和关闭。 当门框关闭时，密封装置插入开口中，下降以与导轨接触，并且当门框打开时上升到与导轨间隔开。

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