Patents by Inventor Sung-Su Yoo
Sung-Su Yoo 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: 11850884Abstract: A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.Type: GrantFiled: November 4, 2020Date of Patent: December 26, 2023Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Wia CorporationInventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Chang Hee Jeong, Yeong Wook Cho, Bum Jae Lee
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Publication number: 20230400066Abstract: A constant velocity joint for a vehicle. The constant velocity joint includes: an axle housing fixed to a knuckle by a hub bearing, and a joint assembly inserted into the axle housing to transmit power from a shaft to the axle housing through a plurality of joint balls. In particular, the axle housing includes an extension portion which is extended from an end portion of the axle housing in a radial direction of the axle housing, and the extension portion provides a pressing force to an inner race of the hub bearing in an axial direction of the axle housing. The constant velocity joint further includes a boot surrounding an outer side of the extension portion and coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.Type: ApplicationFiled: August 28, 2023Publication date: December 14, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Chang Hee Jeong, Yeong Wook Cho, Bum Jae Lee
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Patent number: 11787231Abstract: A hub built-in type constant velocity joint may include a plurality of wheel guide coupling portions to which wheel guides are configured to be coupled, and a hub housing which is formed between the wheel guide coupling portions and in which a discharge portion is formed to be stepped with each of the wheel guide coupling portions and configured to discharge foreign materials to the outside.Type: GrantFiled: September 30, 2020Date of Patent: October 17, 2023Assignees: Hyundai Motor Company, Kia Motors Corporation, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Soo Kyoung Lee, Bum Jae Lee, Chang Hee Jeong
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Patent number: 11773912Abstract: A constant velocity joint for a vehicle. The constant velocity joint includes: an axle housing fixed to a knuckle by a hub bearing, and a joint assembly inserted into the axle housing to transmit power from a shaft to the axle housing through a plurality of joint balls. In particular, the axle housing includes an extension portion which is extended from an end portion of the axle housing in a radial direction of the axle housing, and the extension portion provides a pressing force to an inner race of the hub bearing in an axial direction of the axle housing. The constant velocity joint further includes a boot surrounding an outer side of the extension portion and coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.Type: GrantFiled: March 1, 2021Date of Patent: October 3, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Chang Hee Jeong, Yeong Wook Cho, Bum Jae Lee
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Publication number: 20230111825Abstract: A drive axle assembly includes a wheel bearing mounted to an axle housing, a shaft assembly including a first shaft on an inboard side thereof to which a driving force of a power train is transmitted, and a second shaft on an outboard side thereof which is shaft-connected to the inside of the axle housing by a constant-velocity joint and is separably assembled to the first shaft, and a boot assembly including a first end portion fixed to an external ring of the wheel bearing and a second end portion assembled to the shaft assembly to be rotatable relative to the shaft assembly, and configured to restrict rotation of the boot and prevent foreign substances from being introduced therein.Type: ApplicationFiled: August 24, 2022Publication date: April 13, 2023Applicants: Hyundai Motor Company, Kia Corporation, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Seok Ho Bae, Hee Il Kim, Chang Hee Jeong, Yeong Wook Cho, Bum Jae Lee
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Patent number: 11619271Abstract: An axle assembly for a driving wheel of a vehicle allows a wheel-side joint and a shaft to be rotated separately from a boot while driving so as to prevent generation of friction noise of the boot. The axle assembly includes the shaft rotated by receiving driving force from a powertrain; an axle housing disposed to pass through a center of a steering knuckle connected to a steering apparatus; a wheel bearing mounted between the steering knuckle and the axle housing; a joint bearing mounted on an outer part of the shaft; and a boot unit configured to have a first end coupled to an outer race of the joint bearing and a second end coupled to an outer race of the wheel bearing so as to form a space filled with a lubricant outside the shaft.Type: GrantFiled: November 24, 2020Date of Patent: April 4, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Su Yoo, Seok Ho Bae, Hee Il Kim, Won Jun Choi
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Patent number: 11541689Abstract: An axle assembly for drive wheels of vehicles includes a steering knuckle, an axle housing coupled to an inside of the steering knuckle, a wheel disc that is fixed to the axle housing to be rotatable integrally with the axle housing, and a drive shaft that is coupled to the axle housing to be rotatable integrally with the axle housing. A hub bearing is disposed between the steering knuckle and the axle housing. A forming part is formed at an end of the axle housing in a state in which a bearing inner race of the hub bearing is coupled to an outer circumferential surface of the axle housing, and the bearing inner race is engaged with a side part of the axle housing by the forming part in a state in which the forming part is pressed against a side end of the bearing inner race.Type: GrantFiled: April 29, 2020Date of Patent: January 3, 2023Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Wia CorporationInventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Bum Jae Lee, Chang Hee Jeong, Ki Dong Park
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Publication number: 20220410624Abstract: A hub built-in type drive axle includes one hub housing assuming a role of an external race of a constant velocity joint and a role of a wheel hub simultaneously, wherein the outboard constant velocity joint center is positioned within the full length of the hub housing, and a structure in which a bear housing and a boot assembly ring, including a boot, do not rotate whether the driveshaft 1 rotates is maintained so that performance may be improved, durability may be enhanced, and noise may be minimized.Type: ApplicationFiled: May 31, 2022Publication date: December 29, 2022Applicants: Hyundai Motor Company, Kia Corporation, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Seok Ho Bae, Hee Il Kim, Chang Hee Jeong, Bum Jae Lee, Hee Joon Kim
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Patent number: 11346423Abstract: An anti-resonance apparatus of a propeller shaft may include a support provided in a tube and configured to be rotated with the tube, and including at least a guide pin arranged at equal angles around a longitudinal axis of the tube and formed in a radial direction of the support, at least a mass body slidably engaged to the at least a guide pin and guided by the at least a guide pin to be moved along a longitudinal axis of the at least a guide pin, and a return spring configured to provide an elastic force in a moving direction in which the at least a mass body is moved toward the support.Type: GrantFiled: October 17, 2019Date of Patent: May 31, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Su Yoo, Hee Il Kim
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Publication number: 20220049744Abstract: A constant velocity joint for a vehicle includes: an axle housing fixed to a knuckle by a hub bearing; a joint assembly inserted into an inner diameter portion of the axle housing and configured to transmit power from a shaft to the axle housing through a plurality of joint balls; an extension portion formed by deforming an end portion of the axle housing on an inward side of a vehicle body to extend in a radial direction of the axle housing so as to provide a pressing force to an inner race of the hub bearing in an axial direction of the axle housing; and a boot having one side surrounding an outer side of the extension portion to be coupled to the extension portion so as to form a restraining force between the extension portion and the boot in the axial direction.Type: ApplicationFiled: March 1, 2021Publication date: February 17, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HYUNDAI WIA CorporationInventors: Sung Su YOO, Won Jun CHOI, Hee Il KIM, Chang Hee JEONG, Yeong Wook CHO, Bum Jae LEE
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Publication number: 20210404519Abstract: An axle assembly for a driving wheel of a vehicle allows a wheel-side joint and a shaft to be rotated separately from a boot while driving so as to prevent generation of friction noise of the boot. The axle assembly includes the shaft rotated by receiving driving force from a powertrain; an axle housing disposed to pass through a center of a steering knuckle connected to a steering apparatus; a wheel bearing mounted between the steering knuckle and the axle housing; a joint bearing mounted on an outer part of the shaft; and a boot unit configured to have a first end coupled to an outer race of the joint bearing and a second end coupled to an outer race of the wheel bearing so as to form a space filled with a lubricant outside the shaft.Type: ApplicationFiled: November 24, 2020Publication date: December 30, 2021Inventors: Sung Su Yoo, Seok Ho Bae, Hee Il Kim, Won Jun Choi
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Publication number: 20210394553Abstract: A hub built-in type constant velocity joint may include a plurality of wheel guide coupling portions to which wheel guides are configured to be coupled, and a hub housing which is formed between the wheel guide coupling portions and in which a discharge portion is formed to be stepped with each of the wheel guide coupling portions and configured to discharge foreign materials to the outside.Type: ApplicationFiled: September 30, 2020Publication date: December 23, 2021Applicants: Hyundai Motor Company, Kia Motors Corporation, HYUNDAI WIA CorporationInventors: Sung Su YOO, Won Jun CHOI, Hee Il KIM, Soo Kyoung LEE, Bum Jae LEE, Chang Hee JEONG
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Publication number: 20210362544Abstract: A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.Type: ApplicationFiled: November 4, 2020Publication date: November 25, 2021Applicants: Hyundai Motor Company, Kia Motors Corporation, Hyundai Wia CorporationInventors: Sung Su YOO, Won Jun CHOI, Hee Il KIM, Chang Hee JEONG, Yeong Wook CHO, Bum Jae LEE
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Publication number: 20200369084Abstract: An axle assembly for drive wheels of vehicles includes a steering knuckle, an axle housing coupled to an inside of the steering knuckle, a wheel disc that is fixed to the axle housing to be rotatable integrally with the axle housing, and a drive shaft that is coupled to the axle housing to be rotatable integrally with the axle housing. A hub bearing is disposed between the steering knuckle and the axle housing. A forming part is formed at an end of the axle housing in a state in which a bearing inner race of the hub bearing is coupled to an outer circumferential surface of the axle housing, and the bearing inner race is engaged with a side part of the axle housing by the forming part in a state in which the forming part is pressed against a side end of the bearing inner race.Type: ApplicationFiled: April 29, 2020Publication date: November 26, 2020Inventors: Sung Su Yoo, Won Jun Choi, Hee Il Kim, Bum Jae Lee, Chang Hee Jeong, Ki Dong Park
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Publication number: 20200347908Abstract: An anti-resonance apparatus of a propeller shaft may include a support provided in a tube and configured to be rotated with the tube, and including at least a guide pin arranged at equal angles around a longitudinal axis of the tube and formed in a radial direction of the support, at least a mass body slidably engaged to the at least a guide pin and guided by the at least a guide pin to be moved along a longitudinal axis of the at least a guide pin, and a return spring configured to provide an elastic force in a moving direction in which the at least a mass body is moved toward the support.Type: ApplicationFiled: October 17, 2019Publication date: November 5, 2020Applicants: Hyundai Motor Company, Kia Motors GorporationInventors: Sung Su Yoo, Hee ll KIM
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Publication number: 20200149581Abstract: A method of manufacturing a hollow drive shaft for a vehicle may include swaging one of a first hollow tube and a second hollow tube having a same diameter to reduce an outer diameter thereof and thus allow the swaged hollow tube to be assembled in a remaining hollow tube of the first hollow tube and the second hollow tube, assembling the hollow tube that is reduced in outer diameter in the remaining hollow tube, thereby forming a hollow shaft, and joining first and second sterns to both sides of the hollow shaft, respectively.Type: ApplicationFiled: January 9, 2020Publication date: May 14, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Jang Ho KIM, Sung Su YOO
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Patent number: 10550878Abstract: A method of manufacturing a hollow drive shaft for a vehicle may include swaging one of a first hollow tube and a second hollow tube having a same diameter to reduce an outer diameter thereof and thus allow the swaged hollow tube to be assembled in a remaining hollow tube of the first hollow tube and the second hollow tube, assembling the hollow tube that is reduced in outer diameter in the remaining hollow tube, thereby forming a hollow shaft, and joining first and second stems to both sides of the hollow shaft, respectively.Type: GrantFiled: November 24, 2015Date of Patent: February 4, 2020Assignee: Hyundai Motor CompanyInventors: Jang Ho Kim, Sung Su Yoo
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Patent number: 10443658Abstract: A propeller shaft with a locking device includes a locking device for selectively coupling an exterior hub and an interior hub thereof. The propeller shaft has a structure that enables sliding between the interior and exterior hubs including a spline portion while the locking device is released by the load during a collision.Type: GrantFiled: December 4, 2015Date of Patent: October 15, 2019Assignee: Hyundai Motor CompanyInventors: Sung Su Yoo, Won Jun Choi, Jang Ho Kim
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Patent number: 10422371Abstract: A hybrid propeller shaft may include a CFRP tube layer in which high-strength CFRP or high-elasticity CFRP, the high-strength CFRP, and the high-elasticity CFRP are laminated to form at least two layers while having different wrapping angles by a prepreg wrapping process method; and a protective layer which is formed on an outermost layer of the CFRP tube layer to protect the CFRP tube layer.Type: GrantFiled: December 15, 2016Date of Patent: September 24, 2019Assignee: Hyundai Motor CompanyInventors: Sang Jae Yoon, Sung Su Yoo, Chi Hoon Choi, Sang Yoon Park, Dong Jun Lee, Jeong Min Cho
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Publication number: 20180058496Abstract: A hybrid propeller shaft may include a CFRP tube layer in which high-strength CFRP or high-elasticity CFRP, the high-strength CFRP, and the high-elasticity CFRP are laminated to form at least two layers while having different wrapping angles by a prepreg wrapping process method; and a protective layer which is formed on an outermost layer of the CFRP tube layer to protect the CFRP tube layer.Type: ApplicationFiled: December 15, 2016Publication date: March 1, 2018Applicant: Hyundai Motor CompanyInventors: Sang Jae YOON, Sung Su YOO, Chi Hoon CHOI, Sang Yoon PARK, Dong Jun LEE, Jeong Min CHO