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1. 发明授权

US11629714B2 Compressor having insulation plate 有权
公开(公告)号：US11629714B2
公开(公告)日：2023-04-18
申请号：US17181109
申请日：2021-02-22
申请人： LG ELECTRONICS INC.
发明人： Changeol Jo , Suchul Kim , Jeonghun Kim , Sung Yong Ahn
IPC分类号： F04C29/04 , F04C29/06 , F04C29/00 , F01C21/10 , F04C23/02 , F04C18/02
摘要： A compressor may include a casing, and a compression device installed inside of the casing and that compresses the refrigerant while rotating by receiving a rotational force of an electric motor through a rotational shaft. A high/low pressure separation plate may be installed at an upper portion of the compression device, and an insulation plate may be provided to block the high/low pressure separation plate and the suction tube from each other by being located therebetween. The insulation plate may reduce heat transfer between a refrigerant discharge space having a high temperature located at the upper portion of the high/low pressure separation plate and a refrigerant suction space having a relatively low temperature located at a lower portion of the high/low pressure separation plate.

2. 发明申请

US20230097255A1 SCREW COMPRESSOR WITH A SHUNT-ENHANCED DECOMPRESSION AND PULSATION TRAP (SEDAPT) 有权
公开(公告)号：US20230097255A1
公开(公告)日：2023-03-30
申请号：US17485432
申请日：2021-09-26
申请人： Paul Xiubao HUANG , Sean William YONKERS
发明人： Paul Xiubao HUANG , Sean William YONKERS
IPC分类号： F04C29/00 , F04C18/16 , F04C29/06
摘要： A shunt-enhanced decompression and pulsation trap (SEDAPT) for a screw compressor assists internal compression (IC), reduces gas pulsation and NVH (Noise, Vibration & Harshness), and improves off-design efficiency, without using a slide valve and/or a serial pulsation dampener. The SEDAPT includes an inner casing, e.g., an integral part of the compressor chamber, and an outer casing, e.g., surrounding part of the inner casing near the compressor discharge port, forming at least one diffusing chamber with an outflow orifice or nozzle equipped with an ODV (one-direction valve) at the outflow exit and a feedback region that provides a feedback outflow loop between the compressor chamber and the compressor discharge port. The SEDAPT automatically bleeds or compensates cavity pressure to meet different outlet pressures, eliminates or reduces energy waste, gas pulsations and NVH associated with any over-compression and under-compression before the discharge port opens.

3. 发明授权

US11598338B2 Compressor 有权
公开(公告)号：US11598338B2
公开(公告)日：2023-03-07
申请号：US16763046
申请日：2018-09-13
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ho Choi , Hooi Joong Kim , Hong Taek Lim
IPC分类号： F04C29/06 , G10K11/16
摘要： A compressor including a shaft, a flange to support shaft, and a muffler to reduce noise generated in a compression chamber of the compressor. The flange including a plurality of noise reductions units each of which is formed to have a different volume and at least a portion of the noise reduction unit is covered by the muffler.

4. 发明授权

US11441562B2 Scroll compressor having noise reduction structure 有权
公开(公告)号：US11441562B2
公开(公告)日：2022-09-13
申请号：US16811764
申请日：2020-03-06
申请人： LG Electronics Inc.
发明人： Seungmock Lee , Cheolhwan Kim
IPC分类号： F04C15/06 , F04C18/02 , F04C29/06 , F04C29/12 , F04C23/00
摘要： Disclosed herein is a scroll compressor including a casing, a drive motor arranged in the casing, a shaft coupled to the drive motor, a main frame arranged under the drive motor, a fixed scroll arranged under the main frame, an orbiting scroll arranged between the main frame and the fixed scroll and engaged with the fixed scroll to form a compression chamber with the shaft eccentrically coupled to the orbiting scroll, a discharge cover coupled to the fixed scroll to form a closed space, a discharge port formed in the fixed scroll to connect the compression chamber and the closed space, and a discharge hole passing through the main frame and the fixed scroll, wherein an inlet and an inner portion of the discharge hole have different cross-sectional areas. The scroll compressor can reduce the noise caused by movement of the refrigerant by improving the structure of the discharge holes.

5. 发明授权

US11353026B2 Compressor having decompressing structure 有权
公开(公告)号：US11353026B2
公开(公告)日：2022-06-07
申请号：US16790247
申请日：2020-02-13
申请人： LG Electronics Inc.
发明人： Jungsun Choi , Sangbaek Park , Cheolhwan Kim
IPC分类号： F04C29/02 , F04C18/02 , F04C29/06 , F04C28/26 , F04C28/28
摘要： Disclosed is a compressor including a compressing assembly having a decompressing structure to control an amount of oil. The decompressing structure is oriented in parallel with a length direction of the rotation shaft or in a direction toward a discharger from which the refrigerant is discharged.

6. 发明授权

US11326605B2 Dual cylinder rotary compressor with intermediate plate that flows both cylinders to the muffler 有权
公开(公告)号：US11326605B2
公开(公告)日：2022-05-10
申请号：US16176111
申请日：2018-10-31
申请人： LG Electronics Inc.
发明人： Seungmock Lee
IPC分类号： F04C29/06 , F04C23/00 , F04C18/356
摘要： A rotary compressor includes: a shell forming an internal space; a driving motor disposed in the internal space of the shell; a rotary shaft connected to the driving motor; a lower cylinder having a lower chamber for compressing a refrigerant and a lower roller disposed inside the lower chamber; an upper cylinder disposed on an upper side of the lower cylinder and having an upper chamber for compressing a refrigerant and an upper roller disposed inside the upper chamber; a muffler disposed on the upper side of the upper cylinder and receiving a refrigerant compressed in the upper chamber; and an intermediate plate disposed between the upper cylinder and the lower cylinder and having a rotary shaft hole through which the rotary shaft is disposed. The intermediate plate includes an opening formed around the rotary shaft hole and guiding a refrigerant compressed in the lower chamber to the muffler.

7. 发明授权

US11293442B2 Scroll compressor having discharge cover providing a space to guide a discharge flow from a discharge port to a discharge passgae formed by a plurality of discharge holes 有权
公开(公告)号：US11293442B2
公开(公告)日：2022-04-05
申请号：US16378653
申请日：2019-04-09
申请人： LG ELECTRONICS INC.
发明人： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
IPC分类号： F04C29/12 , F04C18/02 , F04C23/00 , F04C29/00 , F04C29/06
摘要： A scroll compressor may include a first scroll and a second scroll orbiting relative to the first scroll to form compression chambers, a discharge port provided in the first scroll to discharge refrigerant compressed in the compression chamber, a discharge passage formed through the first discharged through the discharge to an upper side of the frame, and a discharge cover coupled to the first scroll and having a space to accommodate end portions of the discharge port and the discharge passage to guide the refrigerant discharged through the discharge port to the discharge passage. A volume of a discharge space defined in the space by the first scroll may be 4.5 or more, obtained by dividing a volume of the discharge space by a total volume of an initial compression chamber among the compression chambers.

8. 发明申请

US20220034322A1 SEALING STRUCTURE AND SCROLL AIR COMPRESSOR HAVING SAME 有权
公开(公告)号：US20220034322A1
公开(公告)日：2022-02-03
申请号：US17277290
申请日：2018-12-05
申请人： GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
发明人： Huijun WEI , Yelin Li , Zhengliang SHI , Xiaoqing GUO , Xiaoxiao CHEN
IPC分类号： F04C27/00 , F04C18/02 , F04C29/04 , F04C29/06
摘要： Disclosed are a sealing structure and a scroll air compressor having the same. The sealing structure includes: an orbiting scroll including an orbiting scroll spiral tooth (11), the orbiting scroll spiral tooth (11) being provided with an orbiting scroll spiral tooth groove (12), an orbiting scroll wear-resistant sealing strip (30) being provided in the orbiting scroll spiral tooth groove (12); a stationary scroll including a stationary scroll spiral tooth (21) matched with the orbiting scroll spiral tooth (11), the stationary scroll spiral tooth (21) being provided with a stationary scroll spiral tooth groove (22), a stationary scroll wear-resistant sealing strip (40) is provided in the stationary scroll spiral tooth groove (22), the wear-resistant sealing strip (30) is divided into sections including a high-temperature and high-pressure section (30a) and a medium-temperature and medium-pressure section (30b). The sealing structure reduces costs of use and maintenance of the sealing strip; a buffer contact surface of the wear-resistant sealing strip (30) in contact with a scroll surface is flat, which improves performances of sealing and noise-reduction; a bottom surface of the wear-resistant sealing strip (30) is equipped with a sealing ring having a cross section in a shape of a circle or a circular tube, which improves the damping and buffering performances; thereby the performance of the air compressor is improved, and the use cost of the air compressor is also reduced.

9. 发明申请

US20210355944A1 Compressor Having Muffler Plate 有权
公开(公告)号：US20210355944A1
公开(公告)日：2021-11-18
申请号：US15930616
申请日：2020-05-13
申请人： Emerson Climate Technologies, Inc.
发明人： Yogesh S. MAHURE
IPC分类号： F04C29/06 , F04C18/02
摘要： A compressor includes a shell assembly, a muffler plate and a compression mechanism. The shell assembly has a suction chamber and a discharge chamber. The muffler plate is disposed within the shell assembly and separates the suction chamber from the discharge chamber. The muffler plate includes a hub having a circumferentially extending inner portion and a circumferentially extending intermediate portion. The circumferentially extending inner portion defines a discharge passage extending therethrough. The circumferentially extending intermediate portion has a slot formed in a surface thereof. The slot extends at least partially around the circumferentially extending intermediate portion. The compression mechanism is disposed within the suction chamber and provides working fluid to the discharge chamber via the discharge passage of muffler plate.

10. 发明授权

US11136982B2 Screw compressor 有权
公开(公告)号：US11136982B2
公开(公告)日：2021-10-05
申请号：US16309793
申请日：2017-06-09
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Hiromichi Ueno
IPC分类号： F04C29/06 , F04C18/52 , F01C21/02 , F16C19/14
摘要： A screw compressor includes a casing, a screw rotor, a discharge passage, and at least one muffler space. The casing includes a cylindrically-shaped cylinder, a main body surrounding a vicinity of the cylinder, and a high-pressure fluid passage provided between the main body and the cylinder. The screw rotor includes a plurality of helical grooves. The screw rotor is inserted into the cylinder to define fluid chambers. A fluid is sucked into the fluid chambers to compress the fluid. The discharge passage is disposed in the casing. The discharge passage guides the fluid that has been discharged from the fluid chambers to the high-pressure fluid passage. The at least one muffler space is disposed in the casing. The at least one muffler space communicates with the discharge passage so as to reduce a pressure fluctuation of the fluid flowing from the discharge passage to the high-pressure fluid passage.

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