Patents by Inventor Wan Jae JEON
Wan Jae JEON 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: 11912653Abstract: Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.Type: GrantFiled: December 26, 2018Date of Patent: February 27, 2024Assignee: HANWHA SOLUTIONS CORPORATIONInventors: Jeong Kwon Kim, Wan Jae Myeong, Sun Woo Yook, Bong Sik Jeon
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Patent number: 11149655Abstract: Disclosed are a high pressure fuel pump and a liquid petroleum direct injection system including the same. The high pressure fuel pump includes a body having an intake port and an exhaust port, and provided therein with a pressing device configured to press a portion of fuel at a high pressure, a spill valve coupled to one side of the body to control a supply flow rate and exhaust pressure of the fuel, and a cover coupled to an upper portion of the body and having a recovery port for recovering a portion of the fuel to a bombe. The cover has a dome shape that is convex upward. The cover collects gaseous fuel generated by heat of an engine when the engine is turned off after driving, that is, collects vapor to recover the vapor to the bombe, thereby improving the restartability.Type: GrantFiled: August 10, 2020Date of Patent: October 19, 2021Assignee: MOTONIC CORPORATIONInventors: Wan Jae Jeon, Yong Deok Park, Dae Yong Kim, Dong Sub Kim
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Patent number: 10962994Abstract: Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.Type: GrantFiled: March 29, 2019Date of Patent: March 30, 2021Assignee: MOTONIC CORPORATIONInventors: Wan Jae Jeon, Jun Hyeok Lee, Jae Kyung Kim, Yong Deok Park, Gu Ho Kim, Jae Kwang Kim, Yeong Dong Park, Yong Heon Kang
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Publication number: 20210079853Abstract: Disclosed are a high pressure fuel pump and a liquid petroleum direct injection system including the same. The high pressure fuel pump includes a body having an intake port and an exhaust port, and provided therein with a pressing device configured to press a portion of fuel at a high pressure, a spill valve coupled to one side of the body to control a supply flow rate and exhaust pressure of the fuel, and a cover coupled to an upper portion of the body and having a recovery port for recovering a portion of the fuel to a bombe. The cover has a dome shape that is convex upward. The cover collects gaseous fuel generated by heat of an engine when the engine is turned off after driving, that is, collects vapor to recover the vapor to the bombe, thereby improving the restartability.Type: ApplicationFiled: August 10, 2020Publication date: March 18, 2021Inventors: Wan Jae JEON, Yong Deok PARK, Dae Yong KIM, Dong Sub KIM
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Publication number: 20210041898Abstract: Proposed are a pressure control method for a high-pressure regulator to prevent internal leak, and a high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.Type: ApplicationFiled: October 19, 2020Publication date: February 11, 2021Inventors: Wan Jae JEON, Jun Hyeok LEE, Jae Kyung KIM, Yong Deok PARK, Gu Ho KIM, Jae Kwang KIM, Yeong Dong PARK, Yong Heon KANG
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Patent number: 10753316Abstract: Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.Type: GrantFiled: January 4, 2019Date of Patent: August 25, 2020Assignee: MOTONIC CORPORATIONInventors: Wan Jae Jeon, Jun Hyeok Lee, Yong Deok Park, Dae Yong Kim, Seung Jin Park
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Publication number: 20200159259Abstract: Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.Type: ApplicationFiled: March 29, 2019Publication date: May 21, 2020Inventors: Wan Jae JEON, Jun Hyeok LEE, Jae Kyung KIM, Yong Deok PARK, Gu Ho KIM, Jae Kwang KIM, Yeong Dong PARK, Yong Heon KANG
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Patent number: 10533465Abstract: A variable valve lift actuator of an engine includes a first body that rotates within a predetermined angular range; a second body connected to or disconnected from the first body; a latching pin configured to project to or retract from the first body by passing through the second body to connect or disconnect the first body and the second body; a drive module connected to the latching pin through a connecting member to project or retract the latching pin; a rotary shaft disposed above the valve across both side walls of the first body and the second body such that the first body is rotatable; and a return spring installed on the rotary shaft to provide a restoring force to return the first body rotated by the high-speed cam to an original position thereof.Type: GrantFiled: August 7, 2018Date of Patent: January 14, 2020Assignee: MOTONIC CORPORATIONInventors: Wan Jae Jeon, Soo Hyun Hwang, Jong Wung Park, Jun Min Park, Chan Wung Park, Dong Hyeong Lee
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Patent number: 10450903Abstract: Provided is a variable valve lift actuator of an engine, which includes: a first body rotating; a second body; a driving module; and a return spring, wherein an entire portion or a partial front end of the driving module is inserted into a rear end of the second body, the lift degree of the valve is variably controlled in two stages of a high-speed mode and a low-speed mode based on an operating condition of the engine, and when only the high-speed cam is installed on the camshaft, the driving pin is operated in a low-speed and low-load state of the engine to separate the first body from the second body so as to deactivate a cylinder.Type: GrantFiled: September 22, 2017Date of Patent: October 22, 2019Assignee: MOTONIC CORPORATIONInventors: Wan Jae Jeon, Soo Hyun Hwang, Jong Wung Park, Jun Min Park, Chan Wung Park, Dong Hyeong Lee
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Publication number: 20190293028Abstract: Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.Type: ApplicationFiled: January 4, 2019Publication date: September 26, 2019Inventors: WAN JAE JEON, JUN HYEOK LEE, YONG DEOK PARK, DAE YONG KIM, SEUNG JIN PARK
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Patent number: 10316785Abstract: An apparatus and a method for controlling a flow control valve for a high-pressure fuel pump include: a pressure sensor for fuel in a delivery pipe; a control unit for controlling an operation of a flow control valve by controlling a current applied to a coil; a power switching unit for supplying or blocking driving power supplied to the flow control valve based on a control signal of the control unit; and a current adjustment unit electrically connected/disconnected with the flow control valve by the power switching unit to reduce a current supplied to the flow control valve when the current adjustment unit is connected with the flow control valve. Therefore, a noise and a vibration by collision between the plunger and the core upon closing the flow control valve may be attenuated by adjusting a current amount applied to the coil.Type: GrantFiled: April 6, 2017Date of Patent: June 11, 2019Assignee: MOTONIC CORPORATIONInventors: Sang Ryul Lee, Wan Jae Jeon, Jun Hyeok Lee, Hyung Soo Kim, Hae Jin Kim, Kyu Sung Choi, Yeong Dong Park
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Publication number: 20190048761Abstract: Provided is a variable valve lift actuator of an engine, which includes: a first body rotating; a second body; a driving module; and a return spring, wherein an entire portion or a partial front end of the driving module is inserted into a rear end of the second body, the lift degree of the valve is variably controlled in two stages of a high-speed mode and a low-speed mode based on an operating condition of the engine, and when only the high-speed cam is installed on the camshaft, the driving pin is operated in a low-speed and low-load state of the engine to separate the first body from the second body so as to deactivate a cylinder.Type: ApplicationFiled: September 22, 2017Publication date: February 14, 2019Inventors: Wan Jae JEON, Soo Hyun HWANG, Jong Wung PARK, Jun Min PARK, Chan Wung PARK, Dong Hyeong LEE
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Publication number: 20190048766Abstract: A variable valve lift actuator of an engine includes a first body that rotates within a predetermined angular range; a second body connected to or disconnected from the first body; a latching pin configured to project to or retract from the first body by passing through the second body to connect or disconnect the first body and the second body; a drive module connected to the latching pin through a connecting member to project or retract the latching pin; a rotary shaft disposed above the valve across both side walls of the first body and the second body such that the first body is rotatable; and a return spring installed on the rotary shaft to provide a restoring force to return the first body rotated by the high-speed cam to an original position thereof.Type: ApplicationFiled: August 7, 2018Publication date: February 14, 2019Inventors: Wan Jae JEON, Soo Hyun HWANG, Jong Wung PARK, Jun Min PARK, Chan Wung PARK, Dong Hyeong LEE
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Patent number: 10167970Abstract: The present invention relates to a safe valve for a high pressure regulator, which includes: a guide body coupled to a valve port prepared at a body of a high pressure regulator; a valve body couple to an upper end part of the guide body to open the valve port when the overpressure occurs in a state that the valve port is closed; a lower spring installed inside the valve body for providing elastic force to the valve body; and a discharging pipe couple to a lower part of the guide body for discharging the fuel upon an opening operation of the valve body, wherein a function for a relief valve to relieve the overpressure by discharging the fuel when the overpressure is generated inside the high pressure regulator and a function for a purge valve separated from the body to discharge fuel inside the high pressure regulator are integrally provided.Type: GrantFiled: December 12, 2016Date of Patent: January 1, 2019Assignee: MOTONIC CORPORATIONInventors: Sang Ryul Lee, Wan Jae Jeon, Sung Kyung Gi, Sung Gil Jang, Yun Ho Jeong
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Publication number: 20180100596Abstract: The present invention relates to a safe valve for a high pressure regulator, which includes: a guide body coupled to a valve port prepared at a body of a high pressure regulator; a valve body couple to an upper end part of the guide body to open the valve port when the overpressure occurs in a state that the valve port is closed; a lower spring installed inside the valve body for providing elastic force to the valve body; and a discharging pipe couple to a lower part of the guide body for discharging the fuel upon an opening operation of the valve body, wherein a function for a relief valve to relieve the overpressure by discharging the fuel when the overpressure is generated inside the high pressure regulator and a function for a purge valve separated from the body to discharge fuel inside the high pressure regulator are integrally provided.Type: ApplicationFiled: December 12, 2016Publication date: April 12, 2018Inventors: Sang Ryul LEE, Wan Jae JEON, Sung Kyung GI, Sung Gil JANG, Yun Ho JEONG
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Publication number: 20170292468Abstract: An apparatus and a method for controlling a flow control valve for a high-pressure fuel pump include: a pressure sensor for fuel in a delivery pipe; a control unit for controlling an operation of a flow control valve by controlling a current applied to a coil; a power switching unit for supplying or blocking driving power supplied to the flow control valve based on a control signal of the control unit; and a current adjustment unit electrically connected/disconnected with the flow control valve by the power switching unit to reduce a current supplied to the flow control valve when the current adjustment unit is connected with the flow control valve. Therefore, a noise and a vibration by collision between the plunger and the core upon closing the flow control valve may be attenuated by adjusting a current amount applied to the coil.Type: ApplicationFiled: April 6, 2017Publication date: October 12, 2017Inventors: Sang Ryul LEE, Wan Jae JEON, Jun Hyeok LEE, Hyung Soo KIM, Hae Jin KIM, Kyu Sung CHOI, Yeong Dong PARK