Patents by Inventor Woo-Tae Kim
Woo-Tae Kim 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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Publication number: 20150059667Abstract: An oil supply device includes a plurality of hollow cam shafts, cam shaft journals, and a shaft side path. The hollow cam shafts have through holes that pass in a longitudinal direction from interior to exterior thereof. The cam shaft journals are provided on every position at which the through holes are formed. Each of the cam shaft journals has a path connected with an associated through hole and is coupled with a cylinder head. The shaft side path is formed to supply oil into each hollow cam shaft after the oil sequentially passing from an oil pump through an associated cam shaft journal and an associated through hole.Type: ApplicationFiled: December 16, 2013Publication date: March 5, 2015Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Young Kyu Oh, Woo Tae Kim, Chul Ho Yu, Dong Hoon Seok, Dong Heon Park, II Joong Hwang
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Publication number: 20140366838Abstract: Output performance of the engine may be maximized by a configuration in which air is supplied so as to maximize volumetric efficiency of the respective cylinders in a multi-cylinder engine including a plurality of cylinders.Type: ApplicationFiled: November 8, 2013Publication date: December 18, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Woo Tae Kim, Chun Woo Lee, In Gee Suh, Joon Won Lim, II Joong Hwang
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Publication number: 20140182555Abstract: An engine includes two injectors that inject fuel in an intake port connected with one combustion chamber and allows overcoming the technical limits of the related art and achieving more appropriate fuel injection in accordance with the operation sections of an engine, thereby improving fuel efficiency and output of the engine with more efficient operation.Type: ApplicationFiled: April 4, 2013Publication date: July 3, 2014Applicant: Hyundai Motor CompanyInventors: Joon Won Lim, Chun Woo Lee, In Gee Suh, Hyung Ju Lee, II Joong Hwang, Woo Tae Kim
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Publication number: 20140182275Abstract: A catalyst can of exhaust gas can include a catalyst embedded substantially in the center of an inner space of the catalyst can, and an inflow space and a discharge space partitioned in an upper part and a lower part of the catalyst can, respectively. The catalyst can also includes an inflow-side partition vertically cutting and dividing the inflow space into a plurality of partial inflow spaces, and an inlet formed for each partial inflow space.Type: ApplicationFiled: May 30, 2013Publication date: July 3, 2014Applicant: Hyundai Motor CompanyInventors: Woo Tae Kim, Chun Woo Lee, In Gee Suh, Joon Won Lim, II Joong Hwang
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Patent number: 8730579Abstract: An optical sheet includes a base film in which light is incident from a lower side, a plurality of prism patterns and a diffusion member. The prism patterns are protruded to be spaced apart from each other on the base film to enhance the front luminance of light incident from the lower side of the base film. The diffusion member is disposed between prism patterns to have a diffusion surface in parallel with the base film. The diffusion member includes a plurality of diffusion dots capable of enhancing the luminance uniformity of light incident from the lower side of the base film. Thus, front luminance and luminance uniformity may be enhanced due to a juxtaposition of the prism patterns and the diffusion portion, and the viewing angle of the LCD device may be enhanced.Type: GrantFiled: July 27, 2009Date of Patent: May 20, 2014Assignees: TSC Optos Co. Ltd.Inventors: Dae-Hwan Lee, Woo-Tae Kim, Kyoung-Soo Lee, Suk Kim, Jae-Sun Hwang, Kwang-Joon An, Jin-Yong Chung, Dal-Seok Byun
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Patent number: 8505509Abstract: The present invention provides to a rocker arm apparatus for cylinder deactivation with a new structure for increasing fuel efficiency in a gasoline engine. For this, the present invention provides a rocker arm apparatus for cylinder deactivation including: a rocker arm; a restoring spring supported at the bottom of a rear end portion of the rocker arm; a roller coupled to the rocker arm to be pressed by a cam; a pair of rocker shaft assemblies each including first and second rocker shafts, and a connecting rod integrally connecting the first and second rocker shafts; a pair of rocker shaft support members connected to the rocker arm by means of the first and second rocker shafts; and a transfer member for controlling the rocker shaft assembly.Type: GrantFiled: November 7, 2011Date of Patent: August 13, 2013Assignee: Hyundai Motor CompanyInventors: Kyoung Pyo Ha, Jin Kook Kong, Woo Tae Kim
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Patent number: 8408173Abstract: An electro-hydraulic variable valve lift apparatus may include a valve unit housing of which a guide protrude portion is formed therein, a main piston which is slidably disposed in the valve unit housing and defines a valve adjusting oil chamber with the valve unit housing, a main spring which is disposed within the valve adjusting oil chamber and elastically supports the main piston on the guide protrude portion, a dependent piston which is slidably disposed within the valve unit housing, is guided along the guide protrude portion, reciprocates according to reciprocation of the main piston, and opens a valve, and a main oil supply portion which selectively supplies hydraulic pressure to the valve adjusting oil chamber.Type: GrantFiled: September 9, 2010Date of Patent: April 2, 2013Assignee: Hyundai Motor CompanyInventors: Myung Rae Cho, Hong Wook Lee, Taewon Park, Woo Tae Kim, Myung Sik Choi, Eui Chul Choi, Won Gyu Kim
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Patent number: 8369463Abstract: A receiver apparatus in a multi-user communication system and a control method are provided. The receiver apparatus includes a multi-user detector for creating a soft decision value by using multiple received signals and priori information output from a prior iteration, and a channel decoder for performing local iterative decoding on the soft decision value created by the multi-user detector, and updating the soft decision value. The receiver apparatus also includes a global decoding controller for checking the soft decision value updated by the channel decoder, and controlling whether or not to perform global iterative decoding.Type: GrantFiled: January 5, 2009Date of Patent: February 5, 2013Assignee: Samsung Electronics Co., LtdInventor: Woo-Tae Kim
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Patent number: 8210157Abstract: An exhaust gas recirculation system of an internal combustion engine where a cylinder head having an intake port and an exhaust port is coupled to a cylinder block, and a portion of an exhaust gas exhausted from the exhaust port is flowed into the intake port through a control valve, may include a recirculation gas gallery integrally formed at the cylinder head and communicated with the intake port, a control valve assembly including the control valve and communicated with the recirculation gas gallery, and at least a recirculation gas extracting unit that is communicated with the control valve assembly and the exhaust port.Type: GrantFiled: September 23, 2009Date of Patent: July 3, 2012Assignee: Hyundai Motor CompanyInventors: Youngmin Sohn, Woo Tae Kim, Chun Woo Lee
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Patent number: 8166930Abstract: A variable compression ratio apparatus for varying a compression ratio, may include a connecting rod that is connected to a piston to take a combustion force; a pin link, one end of which is eccentrically connected to a crankshaft and the other end of which is pivotally connected to the connecting rod to form a connection portion therebetween; a slot link including a control slot to receive and guide the connection portion along the control slot; and a driving unit coupled to the slot link and configured to move the control slot to control a position of the connection portion.Type: GrantFiled: July 29, 2009Date of Patent: May 1, 2012Assignee: Hyundai Motor CompanyInventors: Myung Rae Cho, Hong Wook Lee, Woo Tae Kim, Won Gyu Kim, Jin Woo Cho
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Patent number: 8127726Abstract: A variable valve lift apparatus includes a camshaft with a first cam lobe and a second cam lobe, a cam follower with a first follower contacting the first cam lobe and a second follower contacting the second cam lobe, a connection rotatably connecting the first follower to the second follower, a main body supporting the first follower and the second follower, a connector selectively connecting the first follower and the second follower to the main body, a lost motion elastic member provided on the main body for supplying restoring force to the first follower and the second follower, and a valve configured to be opened and closed by the cam follower.Type: GrantFiled: September 25, 2008Date of Patent: March 6, 2012Assignees: Hyundai Motor Comapny, Kia Motors CorporationInventors: Back Sik Kim, Ingee Suh, Dong Hee Han, Woo Tae Kim, Hyung Ick Kim, Dae Sung Kim, Kyoung Pyo Ha
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Publication number: 20120048223Abstract: The present invention provides to a rocker arm apparatus for cylinder deactivation with a new structure for increasing fuel efficiency in a gasoline engine. For this, the present invention provides a rocker arm apparatus for cylinder deactivation including: a rocker arm; a restoring spring supported at the bottom of a rear end portion of the rocker arm; a roller coupled to the rocker arm to be pressed by a cam; a pair of rocker shaft assemblies each including first and second rocker shafts, and a connecting rod integrally connecting the first and second rocker shafts; a pair of rocker shaft support members connected to the rocker arm by means of the first and second rocker shafts; and a transfer member for controlling the rocker shaft assembly.Type: ApplicationFiled: November 7, 2011Publication date: March 1, 2012Applicant: Hyundai Motor CompanyInventors: Kyoung Pyo HA, Jin Kook Kong, Woo Tae Kim
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Patent number: 8122865Abstract: The present invention relates to an intake manifold for a vehicle and comprises tanks for stabilizing intaken air introduced from a throttle body; a plurality of zip tubes diverged from the tanks; a plurality of runners connected to the zip tubes and communicated with respective cylinders; and a adjustment apparatus provided at one side of the zip tubes and the runners for varying the diameter of the zip tube and the diameter of the runner according to an engine operation range. Due to the above structure, the diameter of the zip tube and the diameter of the runner can be varied continuously within the overall operating range of an engine by the adjustment apparatus. Hence, the performance of the engine can be enhanced.Type: GrantFiled: November 25, 2008Date of Patent: February 28, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ha Dong Bong, Ja Un Ku, Nahm Roh Joo, Seong Hyuk Kang, Su Ho Lee, Woo Tae Kim, Han Sang Kim, Hyun Il Park, Seung Yeon Yang
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Patent number: 8074612Abstract: A variable compression ratio apparatus is disclosed. An upper connecting rod has one end rotatably connected to a piston so as to reciprocate motion of the piston. A lower connecting rod has one end rotatably connected to the other end of the upper connecting rod. A crankshaft is rotatably mounted at an eccentric position of the lower connecting rod. A control rod has one end rotatably connected to the other end of the lower connecting rod, to control the position of that end of the lower connecting rod. A control shaft is connected to the other end of the control rod, to control the position of that end of the control rod.Type: GrantFiled: November 26, 2008Date of Patent: December 13, 2011Assignee: Hyundai Motor CompanyInventors: Min Sig Shin, Myung Rae Cho, Hong Wook Lee, Woo Tae Kim, Won Gyu Kim, Jin Woo Cho
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Patent number: 8056517Abstract: A variable valve lift apparatus of an engine includes: a control shaft; a driving arm rotatable around the control shaft by a cam of a camshaft; a first rocker arm rotatable around the control shaft, that is operated by the driving arm so as to drive a first valve through a first swing arm; a second rocker arm rotatable around the control shaft, that is operated by the driving arm so as to drive a second valve through a second swing arm; and a mediating device rotatable around the control shaft, that transmits a movement of the driving arm to the first and second rocker arms.Type: GrantFiled: May 30, 2008Date of Patent: November 15, 2011Assignee: Hyundai Motor CompanyInventors: Back Sik Kim, Ingee Suh, Dong Hee Han, Woo Tae Kim, Hyung Ick Kim, Myungsik Choi, Dae Sung Kim, Kyoung Pyo Ha
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Patent number: 8056523Abstract: The present invention provides to a rocker arm apparatus for cylinder deactivation with a new structure for increasing fuel efficiency in a gasoline engine. For this, the present invention provides a rocker arm apparatus for cylinder deactivation including: a rocker arm; a restoring spring supported at the bottom of a rear end portion of the rocker arm; a roller coupled to the rocker arm to be pressed by a cam; a pair of rocker shaft assemblies each including first and second rocker shafts, and a connecting rod integrally connecting the first and second rocker shafts; a pair of rocker shaft support members connected to the rocker arm by means of the first and second rocker shafts; and a transfer member for controlling the rocker shaft assembly.Type: GrantFiled: November 15, 2007Date of Patent: November 15, 2011Assignee: Hyundai Motor CompanyInventors: Kyoung Pyo Ha, Jin Kook Kong, Woo Tae Kim
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Patent number: 7971562Abstract: A continuous variable valve lift device includes a valve, which opens/closes a channel by means of reciprocation, a control shaft, which is mounted so as to be able to move toward or away from a reciprocation central axis of the valve, a pivotable shoe, which is pivotably coupled to the control shaft, includes a cam insertion part in a recess or through-hole shape and a slide face slidably contacting an end of the valve, and reciprocates the valve when pivoted, and a drive cam, which comes into contact with an inner wall of the cam insertion part, and pivots the pivotable shoe. Thereby, the continuous variable valve lift device can freely adjust a lift amount and a lift time of the valve without changing positions of the drive cam and camshaft, and thus be easily applied to an existing engine.Type: GrantFiled: September 5, 2008Date of Patent: July 5, 2011Assignee: Hyundai Motor CompanyInventors: Myungsik Choi, Kyoung Pyo Ha, Chun Woo Lee, Woo Tae Kim, Hyung Ick Kim, Yooshin Cho, Ingee Suh, Back Sik Kim, Dae Sung Kim, Dae Yoon Oh, Dong Hee Han
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Publication number: 20110132301Abstract: An electro-hydraulic variable valve lift apparatus may include a valve unit housing of which a guide protrude portion is formed therein, a main piston which is slidably disposed in the valve unit housing and defines a valve adjusting oil chamber with the valve unit housing, a main spring which is disposed within the valve adjusting oil chamber and elastically supports the main piston on the guide protrude portion, a dependent piston which is slidably disposed within the valve unit housing, is guided along the guide protrude portion, reciprocates according to reciprocation of the main piston, and opens a valve, and a main oil supply portion which selectively supplies hydraulic pressure to the valve adjusting oil chamber.Type: ApplicationFiled: September 9, 2010Publication date: June 9, 2011Applicant: Hyundai Motor CompanyInventors: Myung Rae Cho, Hong Wook Lee, Taewon Park, Woo Tae Kim, Myung Sik Choi, Eui Chul Choi, Won Gyu Kim
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Patent number: 7946834Abstract: A balance shaft module according to the present invention includes a first balance shaft equipped with a first eccentric balance weight, a second balance shaft equipped with a second eccentric balance weight, and a hydraulic pump that is operated by the first balance shaft and the second balance shaft, wherein the hydraulic pump includes a first gear equipped on the first balance shaft and a second gear equipped on the second balance shaft and externally meshed with the first gear.Type: GrantFiled: April 16, 2008Date of Patent: May 24, 2011Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Myung Rae Cho, Jin Woo Cho, Woo Tae Kim, Hong Wook Lee, Min Sig Shin
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Patent number: 7936127Abstract: A plasma display apparatus is provided that includes a front substrate, a first electrode, a second electrode and a dielectric layer formed on the front substrate, a rear substrate faced with the front substrate, a third electrode formed on the rear substrate, and a barrier rib which is formed on the rear substrate and partitions discharge cells, wherein at least one of the first electrode and the second electrode is formed with one layer, and the width of at least one of barrier ribs which partitions the discharge cells in the outside of an effective display region is wider than the width of barrier ribs which partition the discharge cells in the inside of the effective display region. The plasma display apparatus does not include a transparent electrode consisting of ITO, reducing the manufacturing cost of the plasma display panel.Type: GrantFiled: November 8, 2006Date of Patent: May 3, 2011Assignee: LG Electronics Inc.Inventors: Seong Nam Ryu, Woo Gon Jeon, Sang Min Hong, Woo Tae Kim, Kyung A Kang, Jeong Hyun Hahm, Jae Sung Kim