Patents by Inventor Junghae Kim
Junghae 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: 20240110557Abstract: A linear compressor includes a cylinder, a piston axially reciprocating in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening at a radially central area, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that communicates with the first intake muffler and is coupled to the opening, a muffler body surrounding the second intake muffler, and a muffler cover disposed between the muffler body and the back cover.Type: ApplicationFiled: June 7, 2023Publication date: April 4, 2024Inventors: Junghae KIM, Sangeun BAE, Seunguk KIM
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Publication number: 20240110554Abstract: A linear compressor includes a cylinder, a piston configured to axially reciprocate in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening in a radially central area thereof, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that is in fluid communication with the first intake muffler and coupled to the opening, and a muffler body surrounding the second intake muffler. The second muffler unit further includes a rib protruding from an outer surface or an inner surface of the second intake muffler.Type: ApplicationFiled: June 7, 2023Publication date: April 4, 2024Inventors: Chulgi ROH, Junghae KIM, Sangeun BAE
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Publication number: 20240110556Abstract: A linear compressor includes a cylinder, a piston axially reciprocating in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening at a radially central area, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that communicates with the first intake muffler and is coupled to the opening, and a muffler body surrounding the second intake muffler. An outer circumferential surface of the second intake muffler defines a first communication hole communicating an inside of the second intake muffler with a space between the second intake muffler and the muffler body.Type: ApplicationFiled: June 1, 2023Publication date: April 4, 2024Inventors: Junghae KIM, Kyeongweon LEE, Jinwoong JUNG
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Patent number: 11773833Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.Type: GrantFiled: June 18, 2020Date of Patent: October 3, 2023Assignee: LG ELECTRONICS INC.Inventors: Junghae Kim, Hyunsoo Kim, Jeonguk Byun, Jongwoo Lee, Eonpyo Hong
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Patent number: 11725642Abstract: A linear compressor includes a compressor body configured to compress a refrigerant. The compressor body includes a cylinder, a discharge valve, a groove, a gas hole, and a flow restrictor. The cylinder receives a piston. The discharge valve is configured to open and close one side of the cylinder and define a compression space for the refrigerant together with the piston. The groove is defined in an outer circumferential surface of the cylinder and into which at least a portion of the refrigerant discharged through the discharge valve is introduced. The gas hole is defined in the groove to pass through the cylinder. The flow restrictor includes twisting wires made of different materials and is disposed to be wound around the groove.Type: GrantFiled: July 15, 2020Date of Patent: August 15, 2023Assignee: LG Electronics Inc.Inventors: Geonwoo Kim, Junghae Kim, Jaeyong Jang, Donghan Kang, Jinwoong Jung, Chulgi Roh
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Publication number: 20220018344Abstract: A linear compressor includes: a piston configured to reciprocate in an axial direction, and a cylinder that is provided on a radially outer side of the piston to accommodate the piston and that defines a compression space with the piston. The cylinder includes: a gas hole defined at the cylinder such that a first end of the gas hole is at an outer circumferential surface of the cylinder and a second end of the gas hole is at an inner circumferential surface of the cylinder, and a gas pocket that is in communication with the gas hole and that is recessed from the inner circumferential surface of the cylinder, where a length of the gas pocket in the axial direction of the cylinder is longer than a length of the gas pocket in a circumferential direction of the cylinder.Type: ApplicationFiled: June 25, 2021Publication date: January 20, 2022Inventors: Sangjin Song, Junghae Kim, Chulgi Roh
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Publication number: 20210095653Abstract: A linear compressor includes a compressor body configured to compress a refrigerant. The compressor body includes a cylinder, a discharge valve, a groove, a gas hole, and a flow restrictor. The cylinder receives a piston. The discharge valve is configured to open and close one side of the cylinder and define a compression space for the refrigerant together with the piston. The groove is defined in an outer circumferential surface of the cylinder and into which at least a portion of the refrigerant discharged through the discharge valve is introduced. The gas hole is defined in the groove to pass through the cylinder. The flow restrictor includes twisting wires made of different materials and is disposed to be wound around the groove.Type: ApplicationFiled: July 15, 2020Publication date: April 1, 2021Inventors: Geonwoo KIM, Junghae KIM, Jaeyong JANG, Donghan KANG, Jinwoong JUNG, Chulgi ROH
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Patent number: 10927828Abstract: A linear compressor is provided that may include a shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a frame to which the cylinder may be fixed, a piston that reciprocates within the cylinder in an axial direction and compresses a refrigerant supplied to the compression space, a discharge valve that discharges the refrigerant compressed in the compression space, a discharge cover coupled to the frame and defining a discharge space in which the refrigerant discharged from the compression space by opening of the discharge valve may be collected, a valve spring that supports the discharge valve, and a support integrally formed with the valve spring by insert injection molding and coupled to the discharge cover. The valve spring may define one or more holes filled with a molding liquid used to form the support in the insert injection molding of the support.Type: GrantFiled: April 25, 2017Date of Patent: February 23, 2021Assignee: LG ELECTRONICS INC.Inventors: Junghae Kim, Jeehyun Kim, Kiwon Noh, Yunhyeok Yu, Kyungmin Lee
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Patent number: 10900477Abstract: A linear compressor includes a shell, a frame in the shell, a cylinder defining a compression space, a piston in the cylinder, a motor assembly configured to drive the piston, a discharge cover unit defining a discharge space, a discharge valve configured to selectively open and close the compression space, and a valve spring assembly configured to provide elastic force that causes the discharge valve to contact the cylinder. The discharge cover unit includes a cover housing that defines an opening configured to communicate with the discharge space, a discharge cover that inserts into the cover housing through the opening, that contacts an inner surface of the cover housing, and that covers the opening, and a fixing ring configured to be positioned at an inner surface of the discharge cover. A thermal expansion coefficient of the fixing ring is greater than that of the discharge cover.Type: GrantFiled: March 5, 2019Date of Patent: January 26, 2021Assignee: LG Electronics Inc.Inventors: Hyunsoo Kim, Geonwoo Kim, Junghae Kim, Chulgi Roh
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Publication number: 20200318621Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Junghae KIM, Hyunsoo KIM, Jeonguk BYUN, Jongwoo LEE, Eonpyo HONG
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Patent number: 10724508Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.Type: GrantFiled: April 19, 2017Date of Patent: July 28, 2020Assignee: LGE ELECTRONICS INC.Inventors: Junghae Kim, Hyunsoo Kim, Jeonguk Byun, Jongwoo Lee, Eonpyo Hong
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Patent number: 10539127Abstract: The linear compressor is provided that may include a shell having first and second ends open, a first shell cover that covers a first end of the shell, a second shell that covers a second end of the shell, a compressor body accommodated in the shell to compress a refrigerant, a first support that supports a first end of the compressor body within the shell and coupled to the first shell cover in a state of being spaced apart from the shell, and a second support that supports a second end of the compressor body and fixed to the shell.Type: GrantFiled: May 2, 2017Date of Patent: January 21, 2020Assignee: LG ELECTRONICS INC.Inventors: Sangmin Lee, Sunghyun Ki, Junghae Kim, Jihyun Yoon, Jaeyong Yang
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Patent number: 10533546Abstract: A linear compressor is provided. The linear compressor may include a cylinder including a cylinder body that defines a compression space for a refrigerant and a cylinder flange that extends from the cylinder body in a radial direction; a piston that reciprocates within the cylinder in an axial direction; and a frame coupled to the cylinder. The frame may include a frame body into which the cylinder body may be inserted and a first press-fitting portion press-fitted into the cylinder flange.Type: GrantFiled: May 3, 2017Date of Patent: January 14, 2020Assignee: LG ELECTRONICS INC.Inventors: Hyunsoo Kim, Donghan Kang, Junghae Kim, Kwangwoon Ahn, Eonpyo Hong
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Publication number: 20190309742Abstract: A linear compressor includes a shell, a frame in the shell, a cylinder defining a compression space, a piston in the cylinder, a motor assembly configured to drive the piston, a discharge cover unit defining a discharge space, a discharge valve configured to selectively open and close the compression space, and a valve spring assembly configured to provide elastic force that causes the discharge valve to contact the cylinder. The discharge cover unit includes a cover housing that defines an opening configured to communicate with the discharge space, a discharge cover that inserts into the cover housing through the opening, that contacts an inner surface of the cover housing, and that covers the opening, and a fixing ring configured to be positioned at an inner surface of the discharge cover. A thermal expansion coefficient of the fixing ring is greater than that of the discharge cover.Type: ApplicationFiled: March 5, 2019Publication date: October 10, 2019Inventors: Hyunsoo KIM, Geonwoo KIM, Junghae KIM, Chulgi ROH
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Patent number: 10323630Abstract: A linear compressor is provided that may include a shell; a compressor body accommodated in the shell to compress a refrigerant; a discharge cover assembly through which the refrigerant compressed in the compressor body may be discharged; a cover pipe that extends from the discharge cover assembly to discharge the refrigerant discharged into the discharge cover assembly to an outside of the discharge cover assembly; a discharge pipe coupled to the shell to discharge the refrigerant flowing along the cover pipe to an outside of the shell; a loop pipe having a first end connected to the cover pipe and a second end connected to the discharge pipe; and a coupling member that respectively couples both the first and second ends of the loop pipe to the cover pipe and the discharge pipe. The coupling member may include a connection member, a first portion of which is inserted into the loop pipe and a second portion of which is inserted into the discharge pipe or the cover pipe.Type: GrantFiled: April 25, 2017Date of Patent: June 18, 2019Assignee: LG ELECTRONICS INC.Inventors: Donghan Kang, Junghae Kim, Changkyu Kim, Hyunsoo Kim, Hyosang Yu
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Patent number: 10036374Abstract: A compressor and a method for assembling a compressor are provided. The compressor may include a compressor casing coupled to each of a suction inlet, into which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and then discharge the refrigerant through the discharge outlet, a noise reducing member disposed between the compressor body and the compressor casing, and at least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing.Type: GrantFiled: April 1, 2015Date of Patent: July 31, 2018Assignee: LG ELECTRONICS INC.Inventors: Kyeongweon Lee, Sunghyun Ki, Junghae Kim
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Patent number: 9890775Abstract: A linear compressor may include a shell, a cylinder provided in the shell to define a compression space for a refrigerant, a frame to fix the cylinder to the shell, a piston reciprocated within the cylinder, a discharge valve disposed on or at one side of the cylinder, a discharge cover coupled to the frame and having at least one chamber to reduce pulsation of the refrigerant discharged through the discharge valve, and a valve spring disposed on the discharge cover to provide a restoring force to the discharge valve. The discharge cover may include a cover body having a discharge hole, through which the refrigerant discharged through the discharge valve may be discharged outside of the discharge cover, and a guide passage defined in the cover body to guide at least a portion of the refrigerant discharged through the discharge valve into the at least one chamber.Type: GrantFiled: March 24, 2015Date of Patent: February 13, 2018Assignee: LG ELECTRONICS INC.Inventors: Junghae Kim, Kyoungkyu Lee, Kiwon Noh
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Patent number: 9863410Abstract: A linear compressor is provided. The linear compressor may include a shell including a suction inlet, a cylinder provided in the shell to define a compression space for a refrigerant, a piston reciprocated in an axial direction within the cylinder, a discharge valve provided on or at one side of the cylinder to selectively discharge the refrigerant compressed in the compression space, at least one nozzle disposed in the cylinder to introduce at least a portion of the refrigerant discharged through the discharge valve into the cylinder, and a passage to guide the refrigerant discharged from the discharge valve to the at least one nozzle.Type: GrantFiled: March 10, 2015Date of Patent: January 9, 2018Assignee: LG Electronics Inc.Inventors: Junghae Kim, Kyoungkyu Lee, Kwangwoon Ahn
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Patent number: 9856867Abstract: A linear compressor and a refrigerator including a linear compressor are provided. The linear compressor may include a shell coupled to a suction inlet, through which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a cylinder disposed within the shell to accommodate a piston reciprocated to compress the refrigerant introduced through the suction inlet, a frame that accommodates the cylinder, the frame being mounted inside the shell, and a discharge cover coupled to a front surface of the frame to discharge the refrigerant compressed by the piston to the discharge outlet. A front surface of the cylinder that faces the discharge cover may be spaced a predetermined distance from the discharged cover.Type: GrantFiled: April 15, 2015Date of Patent: January 2, 2018Assignee: LG ELECTRONICS INC.Inventors: Junghae Kim, Changkyu Kim, Youngcheol Han
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Patent number: 9841011Abstract: An linear compressor and a linear motor for a linear compressor is provided. The linear compressor may include a shell, in which a suction inlet may be provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a frame coupled to an outer side of the cylinder, a piston reciprocated in an axial direction within the cylinder, a stator cover coupled to the frame, and a linear motor supported by the frame and the stator cover to provide power to the piston. The stator cover may include a body, and at least one frame coupling portion coupled to the frame. The at least one frame coupling portion may extend from the body toward the frame.Type: GrantFiled: March 24, 2015Date of Patent: December 12, 2017Assignee: LG ELECTRONICS INC.Inventors: Junghae Kim, Changkyu Kim, Sunghyun Ki, Youngcheol Han, Kyeongweon Lee