Patents by Inventor Tae Gwang Yoon
Tae Gwang Yoon 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).
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Patent number: 9273723Abstract: The present invention relates to a composite magnetic bearing having an auxiliary bearing coupled thereto, which has an improved structure for minimizing a length of a rotor and a system volume. The composite magnetic bearing of a radial type provided around a rotor having an auxiliary bearing coupled thereto for reducing friction, includes a magnetic bearing, and an auxiliary bearing fixed in the empty space in an inside of the stator cores on an inner side of a position the coils and the permanent magnets are provided thereto.Type: GrantFiled: June 17, 2013Date of Patent: March 1, 2016Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
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Patent number: 9181977Abstract: The present invention provides an air-foil bearing including a damper body, a front welding plate, and a front top foil for increasing durability, and which has a first bending mode. The damper body includes a front body portion, a rear body portion, and a front protruded portion protruded upward from the front body portion to have a flat protruded surface, and the front welding plate includes a front first contact portion in surface contact with a top surface of the front protruded portion and a front second contact portion which is a portion that is bent from the front first contact portion in surface contact with the front welding plate.Type: GrantFiled: September 18, 2014Date of Patent: November 10, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
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Patent number: 9157473Abstract: A thrust bearing comprising a damper body including a body part and protrusions axially protruding at predetermined areas on the body part with flat tops, and thrust top foils each having a contact portion that is in surface contact with the tops of the protrusions.Type: GrantFiled: January 15, 2014Date of Patent: October 13, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-Hoon Park, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon
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Patent number: 8998493Abstract: A split combo bearing including a damper body that has a through-hole through which a rotor shaft passes, a cover that covers both axial sides of the damper body and a predetermined area of the outer circumference of the damper body, a thrust bump that is fixed to the side of the cover, which is in contact with the impeller on a rotor shaft, and is arranged circumferentially around the through-hole, a thrust top foil that is axially fixed to the outermost side of the thrust bump, and a radial top foil that is formed to cover the rotor shaft, and is disposed between the outer side of the rotor shaft and the inner side of the through-hole of the damper body.Type: GrantFiled: April 29, 2014Date of Patent: April 7, 2015Assignee: Korea Institute of Machinery & MaterialsInventors: Cheol-hoon Park, Sang-Kyu Choi, Sung Hwi Lee, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
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Publication number: 20150086141Abstract: The present invention provides an air-foil bearing including a damper body, a front welding plate, and a front top foil for increasing durability, and which has a first bending mode. The damper body includes a front body portion, a rear body portion, and a front protruded portion protruded upward from the front body portion to have a flat protruded surface, and the front welding plate includes a front first contact portion in surface contact with a top surface of the front protruded portion and a front second contact portion which is a portion that is bent from the front first contact portion in surface contact with the front welding plate.Type: ApplicationFiled: September 18, 2014Publication date: March 26, 2015Inventors: Cheol-hoon PARK, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
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Publication number: 20140361651Abstract: The present invention relates to a composite magnetic bearing having an auxiliary bearing coupled thereto, which has an improved structure for minimizing a length of a rotor and a system volume. The composite magnetic bearing of a radial type provided around a rotor having an auxiliary bearing coupled thereto for reducing friction, includes a magnetic bearing, and an auxiliary bearing fixed in the empty space in an inside of the stator cores on an inner side of a position the coils and the permanent magnets are provided thereto.Type: ApplicationFiled: June 17, 2013Publication date: December 11, 2014Inventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
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Publication number: 20140321779Abstract: The present invention provides a split combo bearing including: a damper body that has a through-hole through which a rotor shaft passes and is composed of two or more first separate bodies that are axially separated; a cover that covers both axial sides of the damper body and a predetermined area of the outer circumference of the damper body and is composed of two or more second separate bodies that are radially separated to correspond to the first separate bodies; a thrust bump that is fixed to the side of the cover, which faces an impeller on a rotor shaft, is arranged circumferentially around the through-hole, and is formed by bending a thin plate with a wavy surface; a thrust top foil that is axially fixed to the outermost side of the thrust bump and is formed by bending a thin plate; and a radial top foil that is formed to cover the rotor shaft, is disposed between the outer side of the rotor shaft and the inner side of the through-hole of the damper body, has an insertion of which one end is installedType: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon PARK, Sang-Kyu CHOI, Sung Hwi LEE, Sang-Yong HAM, Doo Euy HONG, Tae Gwang YOON
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Publication number: 20140199006Abstract: The present disclosure provides a thrust bearing that includes: a damper body including a body part and protrusions axially protruding at predetermined areas on the body part with flat tops; and thrust top foils each having a contact portion that is in surface contact with the tops of the protrusions. The present disclosure provides a combo bearing that includes: a damper body including a body part having a through-hole at the center through which a rotary shaft passes, and protrusions axially protruding at predetermined areas on the body part with flat tops; thrust top foils each having a contact portion that is in surface contact with the tops of the protrusions; and a radial top foil covering the rotary shaft and disposed along the inner side of the through-hole of the damper body.Type: ApplicationFiled: January 15, 2014Publication date: July 17, 2014Applicant: Korea Institute Of Machinery & MaterialsInventors: Cheol-Hoon PARK, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon