Patents by Inventor Beom Joon LEE
Beom Joon LEE 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: 11987861Abstract: A method according to an embodiment is for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. An anode-cathode mixed electrode material that has been separated by draining, crushing, screening, and sorting a waste lithium secondary battery is preprocessed. A precipitation operation performed by adding lithium carbonate (Li2CO3) to a metal melt acquired by performing sulfuric acid dissolution using sulfuric acid. A valuable metal such as nickel, cobalt, manganese, aluminum, and copper is recovered as a residue in the form of a carbonate composite, and a lithium sulfate (Li2SO4) aqueous solution including lithium is recovered as a filtrate.Type: GrantFiled: May 21, 2021Date of Patent: May 21, 2024Assignee: ECOPRO INNOVATION CO., LTD.Inventors: Suk Joon Park, Myung Gyu Lee, Jeong Sik Hong, So Yeong Byun, Gwang Seok Lee, Jong Sun Park, Beom Seok Seo, Min Woo Lee, Da Mo A Kim, Hui Sang Kim, A Ram Park
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Patent number: 11761668Abstract: The cooling system may dehumidify and cool the indoor air by using the ejector, the ejector membrane, the evaporation chamber, and the indoor dehumidifying membrane. In addition, the coefficient of performance of the cooling system may be improved by cooling the refrigerant using evaporation latent heat generated in the evaporation chamber by the suction force of the ejector and cooling the indoor air using the refrigerant. In addition, by using solar heat to generate high-temperature and high-pressure steam and supply the generated steam to the ejector, energy use efficiency may be improved. In addition, since the temperature of the steam generated in the steam generating portion may be lowered by arranging and using the two first and second ejectors in multiple stages, energy efficiency may be further improved by reducing the consumption of the heat source required for steam generation.Type: GrantFiled: October 25, 2021Date of Patent: September 19, 2023Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Beom Joon Lee, Gil-bong Lee, Chulwoo Roh, Young-jin Baik, Hyung-ki Shin, Jong Jae Cho
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Patent number: 11564859Abstract: A shorts-type pneumatic massage apparatus includes a shorts-pressurizing portion including a left shorts portion, which includes a plurality of air chambers extending in a longitudinal direction of the wearer's legs and which has a right side open from a top of a crotch, and a right shorts portion, which includes a plurality of longitudinal air chambers extending in the longitudinal direction of the wearer's legs and has a left side open from the top of the crotch, wherein the open right side of the left shorts portion and the open left side of the right shorts portion are coupled along an end; and an air injection adjustment portion configured to inject air to or discharge air from each of the longitudinal air chambers to allow the longitudinal air chambers to expand or contract.Type: GrantFiled: May 15, 2018Date of Patent: January 31, 2023Inventor: Beom Joon Lee
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Publication number: 20220128260Abstract: The cooling system according to the present invention may dehumidify and cool the indoor air by using the ejector, the ejector membrane, the evaporation chamber, and the indoor dehumidifying membrane. In addition, the coefficient of performance of the cooling system may be improved by cooling the refrigerant using evaporation latent heat generated in the evaporation chamber by the suction force of the ejector and cooling the indoor air using the refrigerant. In addition, by using solar heat to generate high-temperature and high-pressure steam and supply the generated steam to the ejector, energy use efficiency may be improved. In addition, since the temperature of the steam generated in the steam generating portion may be lowered by arranging and using the two first and second ejectors in multiple stages, energy efficiency may be further improved by reducing the consumption of the heat source required for steam generation.Type: ApplicationFiled: October 25, 2021Publication date: April 28, 2022Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Beom Joon LEE, Gil-bong LEE, Chulwoo ROH, Young-jin BAIK, Hyung-ki SHIN, Jong Jae CHO
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Patent number: 11306912Abstract: In the present invention, a recuperator is used in a refrigerant cycle to make a heat exchange between a refrigerant generated in a condenser and a refrigerant before flowing into a compressor, thereby supercooling the refrigerant to minimize the quality of the refrigerant introduced into an evaporator, elevating temperatures at an inlet and an outlet of the compressor, and increasing condensed heat of the condenser. In the present invention, a recuperator is used to increase condensed heat of the condenser, leading to increasing the heat which circulation water circulating in a steam producing cycle receives from the condenser, whereby steam production efficiency can be improved.Type: GrantFiled: November 1, 2017Date of Patent: April 19, 2022Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Beom Joon Lee, Gil Bong Lee, Young Jin Baik, Hyung Ki Shin, Jun Hyun Cho, Chui Woo Roh, Ho Sang Ra, Eun Seok Wang, Young Soo Lee
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Patent number: 11028711Abstract: According to the present invention, part of carbon dioxide heated by a heater is supplied to a dry gas seal portion of a compressor so that a device for pressurizing and heating a seal gas is not additionally required, configuration can be simplified and cost can be reduced. In addition, a seal gas flow path includes a low-temperature seal gas flow path and a high-temperature seal gas flow path so that, in an initial driving mode, carbon dioxide heated by a high-temperature portion of the heater is used as a seal gas and in a turbine-driving mode, carbon dioxide heated by a low-temperature portion of the heater is used as a seal gas and thus a more efficient operation can be performed.Type: GrantFiled: June 26, 2019Date of Patent: June 8, 2021Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Jun Hyun Cho, Bong Su Choi, Ho Sang Ra, Hyung Ki Shin, Jong Jae Cho, Beom Joon Lee, Chul Woo Roh, Gil Bong Lee, Young Jin Baik
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Patent number: 11028724Abstract: The present invention provides a partial admission operation turbine apparatus comprising: a rotor portion rotatably coupled to a rotary shaft of a turbine and including a plurality of rotor blades; a nozzle portion fixedly coupled to the rotary shaft in front of the rotor portion and guiding and supplying a working fluid to the rotor blades through a plurality of nozzle blades; and an inlet disk coupled to the rotary shaft in front of the nozzle portion in a plate shape and having a plurality of admission holes formed therein so as to supply the working fluid to the nozzle portion to partially admit the working fluid into the nozzle portion, wherein each of the admission holes is formed to have a different passage cross-sectional areas, so that the opening and closing of the admission holes are controlled according to operating flow rate conditions to control a partial admission ratio of the working fluid supplied to the nozzle portion.Type: GrantFiled: November 1, 2017Date of Patent: June 8, 2021Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Hyung Ki Shin, Jun Hyun Cho, Young Jin Baik, Gil Bong Lee, Beom Joon Lee, Chui Woo Roh, Ho Sang Ra, Jong Jae Cho
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Publication number: 20200323732Abstract: Disclosed is a shorts-type pneumatic massage apparatus. The shorts-type pneumatic massage apparatus includes a shorts-pressurizing portion including a left shorts portion, which includes a plurality of air chambers extending in a longitudinal direction of the wearer's legs and which has a right side open from a top of a crotch, and a right shorts portion, which includes a plurality of longitudinal air chambers extending in the longitudinal direction of the wearer's legs and has a left side open from the top of the crotch, wherein the open right side of the left shorts portion and the open left side of the right shorts portion are coupled along an end; and an air injection adjustment portion configured to inject air to or discharge air from each of the longitudinal air chambers to allow the longitudinal air chambers to expand or contract.Type: ApplicationFiled: May 15, 2018Publication date: October 15, 2020Inventor: Beom Joon LEE
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Publication number: 20200131920Abstract: According to the present invention, part of carbon dioxide heated by a heater is supplied to a dry gas seal portion of a compressor so that a device for pressurizing and heating a seal gas is not additionally required, configuration can be simplified and cost can be reduced. In addition, a seal gas flow path includes a low-temperature seal gas flow path and a high-temperature seal gas flow path so that, in an initial driving mode, carbon dioxide heated by a high-temperature portion of the heater is used as a seal gas and in a turbine-driving mode, carbon dioxide heated by a low-temperature portion of the heater is used as a seal gas and thus a more efficient operation can be performed.Type: ApplicationFiled: June 26, 2019Publication date: April 30, 2020Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Jun Hyun CHO, Bong Su CHOI, Ho Sang RA, Hyung Ki SHIN, Jong Jae CHO, Beom Joon LEE, Chul Woo ROH, Gil Bong LEE, Young Jin BAIK
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Publication number: 20200095885Abstract: The present invention provides a partial admission operation turbine apparatus comprising: a rotor portion rotatably coupled to a rotary shaft of a turbine and including a plurality of rotor blades; a nozzle portion fixedly coupled to the rotary shaft in front of the rotor portion and guiding and supplying a working fluid to the rotor blades through a plurality of nozzle blades; and an inlet disk coupled to the rotary shaft in front of the nozzle portion in a plate shape and having a plurality of admission holes formed therein so as to supply the working fluid to the nozzle portion to partially admit the working fluid into the nozzle portion, wherein each of the admission holes is formed to have a different passage cross-sectional areas, so that the opening and closing of the admission holes are controlled according to operating flow rate conditions to control a partial admission ratio of the working fluid supplied to the nozzle portion.Type: ApplicationFiled: November 1, 2017Publication date: March 26, 2020Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Hyung Ki SHIN, Jun Hyun CHO, Young Jin BAIK, Gil Bong LEE, Beom Joon LEE, Chul Woo ROH, Ho Sang RA, Jong Jae CHO
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Patent number: 10533553Abstract: A single-stage compressor including one compressing unit, includes: a housing having a compressing chamber formed therein and including a suction port, which is located in one side of the compressing chamber and into which a working fluid enters, and an injection port, which is located on the compressing chamber to be spaced apart from the suction port by a predetermined distance and into which an intermediate-pressure working fluid is injected; and an intermediate-pressure valve installed on an intermediate-pressure fluid flow path on which the intermediate-pressure working fluid moves and configured to control supply of the intermediate-pressure working fluid so that the intermediate-pressure working fluid is supplied to the injection port in response to an intermediate pressure of the compressing chamber.Type: GrantFiled: January 25, 2018Date of Patent: January 14, 2020Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gil Bong Lee, Young Soo Lee, Beom Joon Lee, Ho Sang Ra, Young Jin Baik, Jun Hyun Cho, Hyung Ki Shin
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Publication number: 20190323704Abstract: In the present invention, a recuperator is used in a refrigerant cycle to make a heat exchange between a refrigerant generated in a condenser and a refrigerant before flowing into a compressor, thereby supercooling the refrigerant to minimize the quality of the refrigerant introduced into an evaporator, elevating temperatures at an inlet and an outlet of the compressor, and increasing condensed heat of the condenser. In the present invention, a recuperator is used to increase condensed heat of the condenser, leading to increasing the heat which circulation water circulating in a steam producing cycle receives from the condenser, whereby steam production efficiency can be improved.Type: ApplicationFiled: November 1, 2017Publication date: October 24, 2019Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Beom Joon LEE, Gil Bong LEE, Young Jin BAIK, Hyung Ki SHIN, Jun Hyun CHO, Chul Woo ROH, Ho Sang RA, Eun Seok WANG, Young Soo LEE
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Patent number: 10233785Abstract: In a steam turbine power generation system according to the present invention, a regenerator and an ejector are selectively operated according to outdoor air temperature so that the effects of the outdoor air temperature can be minimized and thus an increase in back pressure of a turbine is prevented and thus the operating efficiency of the steam turbine power generation system can be guaranteed. In addition, when the outdoor air temperature is lower than a set temperature, only a steam condenser and an air cooling condenser are used, and when the outdoor air temperature is equal to or higher than the set temperature, the regenerator and the ejector are operated so that the condensation efficiency of the air cooling condenser is improved and thus the cooling efficiency of the steam turbine power generation system can be maximized.Type: GrantFiled: August 29, 2017Date of Patent: March 19, 2019Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gil Bong Lee, Beom Joon Lee, Chul Woo Roh, Ho Sang Ra, Young Jin Baik
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Publication number: 20190063264Abstract: In a steam turbine power generation system according to the present invention, a regenerator and an ejector are selectively operated according to outdoor air temperature so that the effects of the outdoor air temperature can be minimized and thus an increase in back pressure of a turbine is prevented and thus the operating efficiency of the steam turbine power generation system can be guaranteed. In addition, when the outdoor air temperature is lower than a set temperature, only a steam condenser and an air cooling condenser are used, and when the outdoor air temperature is equal to or higher than the set temperature, the regenerator and the ejector are operated so that the condensation efficiency of the air cooling condenser is improved and thus the cooling efficiency of the steam turbine power generation system can be maximized.Type: ApplicationFiled: August 29, 2017Publication date: February 28, 2019Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gil Bong LEE, Beom Joon LEE, Chul Woo ROH, Ho Sang RA, Young Jin BAIK
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Publication number: 20190048873Abstract: A single-stage compressor including one compressing unit, includes: a housing having a compressing chamber formed therein and including a suction port, which is located in one side of the compressing chamber and into which a working fluid enters, and an injection port, which is located on the compressing chamber to be spaced apart from the suction port by a predetermined distance and into which an intermediate-pressure working fluid is injected; and an intermediate-pressure valve installed on an intermediate-pressure fluid flow path on which the intermediate-pressure working fluid moves and configured to control supply of the intermediate-pressure working fluid so that the intermediate-pressure working fluid is supplied to the injection port in response to an intermediate pressure of the compressing chamber.Type: ApplicationFiled: January 25, 2018Publication date: February 14, 2019Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gil Bong LEE, Young Soo LEE, Beom Joon LEE, Ho Sang RA, Young Jin BAIK, Jun Hyun CHO, Hyung Ki SHIN