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1. 发明申请

US20230131102A1 ROTARY COMPRESSOR 有权
公开(公告)号：US20230131102A1
公开(公告)日：2023-04-27
申请号：US17961672
申请日：2022-10-07
申请人： LG ELECTRONICS INC.
发明人： Sedong LEE , Seoungmin KANG , Joonhong PARK
IPC分类号： F04C18/356 , F04C18/344 , F04C29/12
摘要： A rotary compressor may include an outflow passage through which refrigerant flows out of a compression space. The outflow passage may include at least one first outflow guide portion disposed in a main bearing or a sub bearing, at least one second outflow guide portion formed through between both axial ends of a roller, and at least one third outflow guide portion disposed in a bearing opposite to the bearing with the at least one first outflow guide portion based on the roller, to communicate with the at least one first outflow guide portion through the at least one second outflow guide portion. This may minimize an amount of refrigerant remaining in the compression space, thereby enhancing compression efficiency. A pressure difference on a front of a vane may also be eliminated, which may suppress or prevent vane jumping, thereby reducing wear of the vane or cylinder. As the outflow passage is periodically opened, refrigerant leakage may be suppressed or prevented during a compression stroke, thereby preventing under-compression.

2. 发明授权

US11635078B2 Compressor having capacity modulation assembly 有权
公开(公告)号：US11635078B2
公开(公告)日：2023-04-25
申请号：US17176080
申请日：2021-02-15
申请人： Emerson Climate Technologies, Inc.
发明人： Masao Akei , Roy J. Doepker
IPC分类号： F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F01C1/02 , F04C23/00 , F04C27/00 , F04C28/26 , F04C29/00 , F04C28/18 , F04C29/12 , F01C21/00
摘要： A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region.

3. 发明申请

US20230120434A1 ROTARY COMPRESSOR 有权
公开(公告)号：US20230120434A1
公开(公告)日：2023-04-20
申请号：US17910242
申请日：2021-03-30
申请人： FUJITSU GENERAL LIMITED
发明人： Hideto UCHIKAI , Motonobu FURUKAWA , Hiroki KATAYAMA , Takahiro SASAKI
IPC分类号： F04C18/356 , F04C29/12
摘要： Provided is a rotary compressor excellent in energy saving performance and reliability that can suppress over-compression of a compressed refrigerant compressed in a compression chamber. A rotary compressor includes a discharge port provided on an end plate and partially located outside a cylinder inner wall and a discharge groove provided on the cylinder inner wall and communicating with a compression chamber and the discharge port, the compression chamber compressing a refrigerant by contracting as an annular piston revolves, in which the discharge port faces an end portion of a vane groove on the cylinder inner wall on the compression chamber side.

4. 发明授权

US11629716B2 Compressor or vacuum pump provided with a transmission 有权
公开(公告)号：US11629716B2
公开(公告)日：2023-04-18
申请号：US16671305
申请日：2019-11-01
申请人： ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
发明人： Linus Van Hove , Steven De Man
IPC分类号： F04C18/16 , F04C29/02 , F04C29/00 , F01C1/04 , F16H57/02 , F16H57/04 , F04C29/12 , F01C1/16 , F04B53/00 , F16H37/02 , F04C18/08
摘要： A compressor provided with a compressor element with a driven shaft, a motor with a drive shaft to drive the compressor element, and a transmission between the drive shaft and the driven shaft. The transmission includes a housing and at least a driven gearwheel that is mounted on the driven shaft and a drive gearwheel that is mounted on a drive shaft. The housing includes two separated chambers, a first chamber that is connected to the driven shaft and a second chamber which is separate from the first chamber. The first chamber is connected via a channel with the second chamber, whereby around the drive gearwheel or driven gearwheel, the second chamber is formed. The form of the second chamber is such that when the gearwheel in question rotates, a gas flow is created around this gearwheel which causes a negative pressure in the channel by the venturi effect.

5. 发明授权

US11629712B2 Fluid transfer device 有权
公开(公告)号：US11629712B2
公开(公告)日：2023-04-18
申请号：US17333201
申请日：2021-05-28
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE
发明人： Yongkwon Koh , Jangsoon Kwon , Kyuseok Song , Kijong Jang , Bongju Kim
IPC分类号： F04C23/00 , F04C18/22 , F04C29/00 , F04C29/12
摘要： The present disclosure describes a rotary pulsation generator having a simple structure capable of transferring fluid while implementing low noise and low vibration and having high flow of fluid and high pressure suction and discharge functions. According to the present disclosure, fluid is transferred by adjusting a width and interval of pulsation while reducing vibration caused by eccentric rotation of a rotor.

6. 发明申请

US20230094593A1 HORIZONTAL COMPRESSOR 有权
公开(公告)号：US20230094593A1
公开(公告)日：2023-03-30
申请号：US17966263
申请日：2022-10-14
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Yanghee CHO , Joonhyung KIM
IPC分类号： F04C29/12 , F04C29/02
摘要： A horizontal compressor includes a case; a high and low pressure separating plate dividing an inner space of the case into a high-pressure chamber and a low-pressure chamber; a compressor in the high-pressure chamber configured to be operated by a motor to compress refrigerant; a suction pipe in the case to communicate with the low-pressure chamber and through which the refrigerant is sucked; and an internal suction pipe to pass through the high and low pressure separating plate, one end of the internal suction pipe connected to the compressor and another end of the internal suction pipe to communicate with the low-pressure chamber so that the refrigerant in the low-pressure chamber flows into the compressor, wherein the internal suction pipe includes a connecting pipe adjacent to a lower surface of the case parallel to a central axis of the case.

7. 发明授权

US11608830B2 Scroll compressor 有权
公开(公告)号：US11608830B2
公开(公告)日：2023-03-21
申请号：US17544178
申请日：2021-12-07
申请人： Hanon Systems
发明人： Kyung Jae Lee , Jeong Ki Seo
IPC分类号： F04C18/02 , F04C29/06 , F04C29/12
摘要： A scroll compressor including a center housing; a front housing fastened to the center housing and forming a suction chamber; a rear housing fastened to the center housing and forming a compression mechanism accommodation space. Fixed scroll is in the compression mechanism accommodation space. An orbiting scroll interposes between the center housing and the fixed scroll forming a compression chamber together with the fixed scroll. Fixed scroll may include a fixed scroll end plate and a fixed scroll side plate protruded from outer circumferential portion of fixed scroll end plate, fastened to the center housing, and forming orbiting space of orbiting scroll. Outer circumferential portion of the center housing may be formed with an inflow hole for communicating with the suction chamber. Distal end surface of the fixed scroll side plate is formed with a suction port for guiding the refrigerant of the inflow hole to the compression chamber.

8. 发明申请

US20230060653A1 SCROLL COMPRESSOR 有权
公开(公告)号：US20230060653A1
公开(公告)日：2023-03-02
申请号：US17465109
申请日：2021-09-02
申请人： BITZER Kuehlmaschinenbau GmbH
发明人： Paul J. Flanigan
IPC分类号： F04C18/02 , F04C29/02 , F04C29/12
摘要： A scroll compressor is provided, the scroll compressor comprises two scroll bodies each having a scroll rib and the scroll ribs engage each other to form at least one compression chamber, and the scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies, wherein the moveable scroll body comprises a base plate which has two opposing sides, wherein on a first side of the two opposing sides the scroll rib is arranged and on a second side of the two opposing sides a hub is arranged, the hub comprising a receiving portion for a drive section of the drive shaft, and wherein the moveable scroll body comprises at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.

9. 发明授权

US11493044B2 Rotary compressor with a vane discharge-sided groove and a vane suction-sided groove 有权
公开(公告)号：US11493044B2
公开(公告)日：2022-11-08
申请号：US16931163
申请日：2020-07-16
申请人： LG Electronics Inc.
发明人： Ki Sun Kim , Sangha Lee , Jaeyeol Lee
IPC分类号： F04C18/324 , F01C21/08 , F04C29/12
摘要： A rotary compressor includes a cylinder having a vane slot and a compression chamber, a shaft having an eccentric portion and configured to perpendicularly pass through a center of the compression chamber, a roller having a coupling groove and configured to orbit in the compression chamber by rotation of the shaft, and a vane having a vane hinge coupled to the coupling groove and a vane body being inserted into the vane slot and configured to divide the compression chamber into a discharge space and a suction space. A shape of the discharge-sided groove close to the discharge space and a shape of the suction-sided groove close to the suction space are asymmetrically formed between the vane hinge and the vane body with respect to the a central axis of the vane.

10. 发明授权

US11493040B2 Damping apparatus for exhaust valve in compressor, exhaust valve assembly, and compressor 有权
公开(公告)号：US11493040B2
公开(公告)日：2022-11-08
申请号：US17256905
申请日：2019-06-21
申请人： EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.
发明人： Hongwei Zou , Xuan Liu
IPC分类号： F04C18/02 , F04C29/06 , F04C29/12
摘要： A damping apparatus for an exhaust valve in a compressor, an exhaust valve assembly having the damping apparatus, and a compressor using the exhaust valve assembly. The damping apparatus comprises a fixed body; the fixed body comprises an exhaust hole comprises an exhaust hole through which a compression cavity and an exhaust cavity are in fluid communication with each other; the exhaust hole comprises an inlet, an outlet, and an intermediate cavity provided between the inlet and the outlet and allowing the inlet and the outlet to be in fluid communication with each other; the intermediate cavity is configured to enable the backflow of the gas from the exhaust cavity to form a vortex in the intermediate cavity. The damping apparatus has advantages of reducing the force and frequency of impacts on an exhaust valve plate, and prolonging the service life of the valve plate.

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