Patents by Inventor Yeol Woo SUNG

Yeol Woo SUNG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240384752
    Abstract: The present invention relates to an air foil journal bearing including a bump foil having a plurality of elastic bumps and provided and coupled inside a bearing housing, a mid-foil provided inside the bump foil, formed in a circumferential direction, and having at least one circumferential end coupled to the bearing housing, and a top foil provided inside the mid-foil, formed in the circumferential direction, and having at least one circumferential end coupled to the bearing housing, in which a stepped portion is formed as a radius of an inner peripheral surface of a partial circumferential region of the mid-foil is smaller than a radius of an inner peripheral surface of the remaining region, such that an additional pressure is generated in a section in which a maximum positive pressure is applied when a rotor rotates at low speed, such that the rotor may float at a relatively low rotational speed, and friction and vibration between the rotor and the top foil may be reduced.
    Type: Application
    Filed: October 17, 2022
    Publication date: November 21, 2024
    Inventors: Jong Sung Lee, Hyun Chil Kim, Gunwoong Park, Min Gyu Park, Chi Yong Park, Yeol Woo Sung, Hyun Seok Jung, Kyu Sung Choi
  • Publication number: 20240266900
    Abstract: The present invention relates to a toroidal motor in which a coil is wound around a yoke, and more particularly, to a toroidal motor in which a process of winding a coil starts from an inside of a yoke to ensure a sufficient insulation distance from a rotor side housing, a busbar assembly is disposed on an upper portion of the yoke to make it easy to connect a busbar and the coil, and the busbar is configured so as not to cover a slot, through which cooling air flows, to ensure cooling performance and simplify an entire structure of the motor.
    Type: Application
    Filed: June 13, 2022
    Publication date: August 8, 2024
    Inventors: Gunwoong PARK, Min Gyu PARK, Chi Yong PARK, Yeol Woo SUNG, Jong Sung LEE
  • Patent number: 12031549
    Abstract: The present invention relates to an air compressor for a vehicle and, more specifically, to an air compressor for a vehicle wherein the entire operation of the air compressor may be stabilized by a cooling unit in which a portion of the compressed air that moves through a connection pipe conveying primarily compressed air exchanges heat with a cooling water flowing part to cool the driving unit.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: July 9, 2024
    Assignee: Hanon Systems
    Inventors: Hyun Chil Kim, Gunwoong Park, Chi Yong Park, Yeol Woo Sung, Hyun Sup Yang, Jong Sung Lee, Kyu Sung Choi
  • Patent number: 11982283
    Abstract: The present invention relates to a compressor and, more specifically, to an air compressor for a vehicle, which can support a rotor disk and form a cooling flow channel by a first cover and a second cover, and thus can improve cooling efficiency while increasing manufacturability.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: May 14, 2024
    Assignee: Hanon Systems
    Inventors: Chi Yong Park, Hyun Chil Kim, Gunwoong Park, Min Gyu Park, Yeol Woo Sung, Hyun Sup Yang, Jong Sung Lee, Kyu Sung Choi
  • Publication number: 20240125334
    Abstract: An air compressor according to an aspect of the present invention comprises: a housing; a rotating shaft which is disposed in the housing; a compression unit which is connected to the rotating shaft to compress and discharge inlet air; a motor unit which drives the rotating shaft; a control board which controls the motor unit; and a filter unit which filters out noise from external power and supplies the external power to the control board, wherein the housing includes a first cooling flow channel for cooling the motor unit and a second cooling flow channel for cooling the filter unit, and the first cooling flow channel communicates with the second cooling flow channel.
    Type: Application
    Filed: March 30, 2022
    Publication date: April 18, 2024
    Inventors: Kyu Sung CHOI, Hyun Chil KIM, Gun Woong PARK, Min Gyu PARK, Chi Yong PARK, Yeol Woo SUNG, Hyun Sup YANG, Jong Sung LEE
  • Publication number: 20240125357
    Abstract: The present invention relates to an air foil journal bearing in which air is introduced between a foil and a rotor rotating at high speed and generates pressure to support a radial load of the rotor and allow the rotor to rotate smoothly, and more particularly, to a housing fixing structure of an air foil journal bearing that improves durability against external impact or vibration by restricting an axial movement of a bump by means of two opposite ends of the bump and a top foil fixing portion.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 18, 2024
    Applicant: Hanon Systems
    Inventors: Yeol Woo SUNG, Hyun Chil KIM, Gunwoong PARK, Min Gyu PARK, Chi Yong PARK, Hyun Sup YANG, Jong Sung LEE, Kyu Sung CHOI
  • Publication number: 20240120813
    Abstract: Air compressor in which the arrangement structure between a filter part and a discharge resistor reduces interference between the filter part and the discharge resistor and increases the space utilization of the filter part, making the air compressor more compact. The air compressor comprises a housing with a rotary shaft disposed inside it; a compression part connected to the rotary shaft which compresses and discharges introduced air; a motor part driving the rotary shaft; a control board for controlling the motor part, and the filter part which filters noise of external power and supplies the external power to the control board, wherein the filter part includes a capacitor assembly connected to an external power source, a transistor connected to the control board, a current sensor assembly connected to the transistor, and a discharge resistor connected to the capacitor assembly and discharges the residual charge in the capacitor assembly.
    Type: Application
    Filed: April 11, 2022
    Publication date: April 11, 2024
    Inventors: Kyu Sung CHOI, Gun Woong PARK, Chi Yong PARK, Yeol Woo SUNG, Hyun Sup YANG
  • Publication number: 20240011498
    Abstract: The present invention relates to a compressor and, more specifically, to an air compressor for a vehicle, which can support a rotor disk and form a cooling flow channel by a first cover and a second cover, and thus can improve cooling efficiency while increasing manufacturability.
    Type: Application
    Filed: April 1, 2021
    Publication date: January 11, 2024
    Inventors: Chi Yong PARK, Hyun Chil KIM, Gunwoong PARK, Min Gyu PARK, Yeol Woo SUNG, Hyun Sup YANG, Jong Sung LEE, Kyu Sung CHOI
  • Publication number: 20230327524
    Abstract: The present invention relates to an air compressor which improves the space utilization of a filter unit, and reduces the number of constituent parts constituting the filter unit, thereby improving assemblability, reducing manufacturing costs, and minimizing the size of the air compressor itself. The air compressor comprises: a housing; a rotating shaft extending in the longitudinal direction inside the housing; a compression unit disposed in front of the rotating shaft and rotated by the rotating shaft to compress and discharge air that flows in; a motor unit which rotates the rotating shaft; a control board which controls the motor unit; a filter unit which supplies external electrical power to the control board and filters the noise of the electrical power; and a bus bar assembly which transfers the electrical power from the control board to the motor unit.
    Type: Application
    Filed: September 8, 2021
    Publication date: October 12, 2023
    Inventors: Kyu Sung CHOI, Hyun Chil KIM, Gun Woong PARK, Min Gyu PARK, Chi Yong PARK, Yeol Woo SUNG, Hyun Sup YANG, Jong Sung LEE
  • Publication number: 20230106824
    Abstract: The present invention relates to an air compressor for a vehicle and, more specifically, to an air compressor for a vehicle wherein the entire operation of the air compressor may be stabilized by a cooling unit in which a portion of the compressed air that moves through a connection pipe conveying primarily compressed air exchanges heat with a cooling water flowing part to cool the driving unit.
    Type: Application
    Filed: March 9, 2021
    Publication date: April 6, 2023
    Inventors: Hyun Chil KIM, Gunwoong PARK, Chi Yong PARK, Yeol Woo SUNG, Hyun Sup YANG, Jong Sung LEE, Kyu Sung CHOI
  • Patent number: 11293421
    Abstract: The present invention relates to an apparatus for reducing suction pulsation and a swash plate type compressor comprising same.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 5, 2022
    Assignee: Hanon Systems
    Inventors: Yeol Woo Sung, Young Seop Yoon
  • Patent number: 11221003
    Abstract: A control valve and a variable capacity compressor having a control valve or a passage connecting the control valve and a crank chamber. A fixed orifice hole is variable which is possible by selectively opening and closing a plurality of holes depending on the operation of the compressor.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: January 11, 2022
    Assignee: Hanon Systems
    Inventors: Yeol Woo Sung, Se Young Song
  • Publication number: 20200400133
    Abstract: A control valve and a variable capacity compressor which are capable of preventing an unnecessary loss of control gas to improve efficiency of the compressor reduces loss of control gas by eliminating a fixed orifice hole in an existing valve assembly and forming it in a control valve or a passage connecting the control valve and a crank chamber. The size of the fixed orifice hole is variable (which is possible by selectively opening and closing a plurality of holes) depending on the operation of the compressor. On the other hand, forming the fixed orifice hole in the passage connecting the control valve and the crank chamber causes the loss of control gas to be reduced because the fixed orifice hole can be machined to a smaller size compared to an existing orifice hole, the minimum size of which is limited due to difficulty of machining.
    Type: Application
    Filed: May 28, 2018
    Publication date: December 24, 2020
    Inventors: Yeol Woo SUNG, Se Young SONG
  • Publication number: 20190383278
    Abstract: Disclosed herein are a discharge valve and a compressor having the same. The discharge valve includes a valve casing having a hook formed around the upper portion thereof such that the hook is seated on a discharge port of a cylinder block, a first opening formed at the center of the upper portion for introduction of a compressed fluid, and a second opening formed around the lower portion thereof for discharge of the compressed fluid, a core body disposed within the valve casing, an elastic body disposed to touch one side of the core body, and a support block mounted to the lower end of the valve casing to support the elastic body. According to the disclosure, the separation of the discharge valve can be prevented due to back pressure between a discharge pipe and the inside of the compressor by pressing the discharge valve against a discharge gasket.
    Type: Application
    Filed: July 14, 2017
    Publication date: December 19, 2019
    Inventor: Yeol Woo SUNG
  • Publication number: 20190195211
    Abstract: The present invention relates to an apparatus for reducing suction pulsation and a swash plate type compressor comprising same.
    Type: Application
    Filed: April 10, 2018
    Publication date: June 27, 2019
    Inventors: Yeol Woo SUNG, Young Seop YOON