Patents by Inventor Dongwoo Gwak
Dongwoo Gwak 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: 11007861Abstract: A double clutch apparatus for a hybrid electric vehicle having a motor and an engine includes: first and second clutches transmitting a motor torque and an engine torque to first and second input shafts; and first and second slave cylinders disposed at a transmission case and configured to respectively operate the first and second clutches in an axial direction. In particular, a rotor hub of the motor is rotatably supported by an end of a radially interior side of a front cover, and is connected to the first input shaft through a clutch retainer of the second clutch and a first connection member to transmit the motor torque to the first input shaft. In addition, the first and second clutches are disposed in parallel in an interior circumference of the rotor hub to selectively transmit the engine torque to the first and second input shafts, respectively.Type: GrantFiled: November 26, 2019Date of Patent: May 18, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon Park, Seong Wook Hwang, Jae Young Jeon, Dongwoo Gwak, Seongeun Yun, Wonmin Cho, Bong Hyun Cho, Seongwook Ji
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Publication number: 20210094404Abstract: A double clutch apparatus for a hybrid electric vehicle having a motor and an engine includes: first and second clutches transmitting a motor torque and an engine torque to first and second input shafts; and first and second slave cylinders disposed at a transmission case and configured to respectively operate the first and second clutches in an axial direction. In particular, a rotor hub of the motor is rotatably supported by an end of a radially interior side of a front cover, and is connected to the first input shaft through a clutch retainer of the second clutch and a first connection member to transmit the motor torque to the first input shaft. In addition, the first and second clutches are disposed in parallel in an interior circumference of the rotor hub to selectively transmit the engine torque to the first and second input shafts, respectively.Type: ApplicationFiled: November 26, 2019Publication date: April 1, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon PARK, Seong Wook HWANG, Jae Young JEON, Dongwoo GWAK, Seongeun YUN, Wonmin CHO, Bong Hyun CHO, Seongwook JI
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Patent number: 10933733Abstract: A power transmission apparatus for hybrid electric vehicle includes: input shaft coaxially disposed with an engine output shaft receiving engine torque; first and second output shafts coaxially disposed forward and rearward sides on the input shaft; third output shaft coaxial with the first output shaft; a shared drum connected to the input shaft and formed with a motor gear gear-meshed with a motor; an engine clutch sharing the shared drum and selectively transmitting torque between the engine output shaft and the input shaft; first and third clutches disposed in rows within the shared drum and selectively transmitting torque from the input shaft to the first and third output shafts; a planetary gear set disposed on the second output shaft and connected to the second output shaft; and a second clutch external to the planetary gear set and selectively connecting the input shaft and the planetary gear set.Type: GrantFiled: October 17, 2019Date of Patent: March 2, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon Park, Seong Wook Hwang, Jae Young Jeon, Dongwoo Gwak, Seongeun Yun, Wonmin Cho, Bong Hyun Cho, Seongwook Ji
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Patent number: 10906386Abstract: A power transmission apparatus for a hybrid electric vehicle having engine and motor may include: an input shaft coaxially disposed with an engine output shaft receiving engine torque; first and second output shafts disposed forward and rearward sides of the input shaft; a third output shaft coaxially disposed with the first output shaft; a shared drum connected to the input shaft and formed with a motor gear gear-meshed with the motor; an engine clutch arranged on the interior circumference of the shared drum and selectively transmitting torque between the engine output shaft and the input shaft; first and third clutches disposed within the shared drum and selectively transmitting torque from the input shaft to the first and third output shafts; and a second clutch disposed at a rearward side of the input shaft and selectively connecting the input shaft and the second output shaft.Type: GrantFiled: October 17, 2019Date of Patent: February 2, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon Park, Seong Wook Hwang, Jae Young Jeon, Dongwoo Gwak, Seongeun Yun, Wonmin Cho, Bong Hyun Cho, Seongwook Ji
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Publication number: 20210023932Abstract: A power transmission apparatus for a hybrid electric vehicle having engine and motor may include: an input shaft coaxially disposed with an engine output shaft receiving engine torque; first and second output shafts disposed forward and rearward sides of the input shaft; a third output shaft coaxially disposed with the first output shaft; a shared drum connected to the input shaft and formed with a motor gear gear-meshed with the motor; an engine clutch arranged on the interior circumference of the shared drum and selectively transmitting torque between the engine output shaft and the input shaft; first and third clutches disposed within the shared drum and selectively transmitting torque from the input shaft to the first and third output shafts; and a second clutch disposed at a rearward side of the input shaft and selectively connecting the input shaft and the second output shaft.Type: ApplicationFiled: October 17, 2019Publication date: January 28, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon PARK, Seong Wook HWANG, Jae Young JEON, Dongwoo GWAK, Seongeun YUN, Wonmin CHO, Bong Hyun CHO, Seongwook JI
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Publication number: 20210001705Abstract: A power transmission apparatus for hybrid electric vehicle includes: input shaft coaxially disposed with an engine output shaft receiving engine torque; first and second output shafts coaxially disposed forward and rearward sides on the input shaft; third output shaft coaxial with the first output shaft; a shared drum connected to the input shaft and formed with a motor gear gear-meshed with a motor; an engine clutch sharing the shared drum and selectively transmitting torque between the engine output shaft and the input shaft; first and third clutches disposed in rows within the shared drum and selectively transmitting torque from the input shaft to the first and third output shafts; a planetary gear set disposed on the second output shaft and connected to the second output shaft; and a second clutch external to the planetary gear set and selectively connecting the input shaft and the planetary gear set.Type: ApplicationFiled: October 17, 2019Publication date: January 7, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Juhyeon Park, Seong Wook Hwang, Jae Young Jeon, Dongwoo Gwak, Seongeun Yun, Wonmin Cho, Bong Hyun Cho, Seongwook Ji