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1. 发明申请

US20230122823A1 A LUBRICANT RECOVERY SYSTEM 有权
公开(公告)号：US20230122823A1
公开(公告)日：2023-04-20
申请号：US17906001
申请日：2021-03-10
申请人： Atlas Copco Airpower N.V.
发明人： Andries Desiron , Glenn Vinck
IPC分类号： F04C25/02 , F04C27/02 , F04C29/02
摘要： A lubricant recovery system for vacuum pump comprising a reservoir to store lubricant. Supply lines connected to the reservoir wherein the supply line can be connected to the vacuum pump to supply the lubricant to the vacuum pump. Further, a return line is connected to the reservoir to return a lubricant-air mixture from the vacuum pump to the reservoir by the return line. An air filter is disposed inside the reservoir to separate lubricant from the air wherein the filter is connected to a scavenge line which is connectable to a low-pressure region of the vacuum pump such that lubricant separated from the lubricant-air mixture by the air filter is drawn via the scavenge line into the vacuum pump. In accordance to the present invention a valve is disposed in the scavenge line to selectively separate the air filter from the vacuum pump.

2. 发明申请

US20230117903A1 ROTARY COMPRESSOR 有权
公开(公告)号：US20230117903A1
公开(公告)日：2023-04-20
申请号：US17910261
申请日：2021-03-30
申请人： FUJITSU GENERAL LIMITED
发明人： Shuhei HOSHINO
IPC分类号： F04C29/02 , F04C18/356
摘要： Provided is a rotary compressor excellent in energy saving performance and reliability by improving sliding performance of a sliding portion and ensuring sealability in a working chamber. An oil groove is formed at a position facing a vane end face on an end plate. The oil groove communicates with an inside of a sealed container, and is exposed in a gap between a leading end surface of a vane and an outer peripheral surface of an annular piston formed when the leading end surface of the vane is in abutment on the outer peripheral surface of the annular piston.

3. 发明授权

US11603843B2 Oil supplying mechanism, and horizontal compressor having same 有权
公开(公告)号：US11603843B2
公开(公告)日：2023-03-14
申请号：US16957698
申请日：2018-12-26
申请人： EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.
发明人： Sheng Liang , Laurent Grignard
IPC分类号： F04C29/02
摘要： Disclosed are an oil supplying mechanism, and a horizontal compressor having same. Disclosed is an oil supply mechanism for a horizontal compressor, the horizontal compressor including a housing, a motor, a rotating shaft driven by the motor, and a bearing pedestal supporting the rotating shaft. The oil supply mechanism includes a separating member, the separating member being in the form of a ring having a central hole for allowing the bearing pedestal to pass therethrough, and the separating member being configured to separate the housing into an oil storage chamber and a motor chamber with the motor provided therein. The separating member is constructed to have an annular groove opening into the oil storage chamber. The oil supply mechanism and the horizontal compressor having the oil supply mechanism can reduce or minimize free space in the motor chamber and/or facilitate a quality inspection on the structure of a pump.

4. 发明申请

US20230077032A1 SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICE 有权
公开(公告)号：US20230077032A1
公开(公告)日：2023-03-09
申请号：US17901944
申请日：2022-09-02
申请人： Hitachi-Johnson Controls Air Conditioning, Inc.
发明人： Kazuyuki MATSUNAGA , Ryota IIJIMA
IPC分类号： F04C18/02 , F04C29/00 , F04C29/02
摘要： In a scroll compressor, at an end plate surface of a fixed scroll, an annular back pressure groove connected to a back pressure chamber is provided, and an arc-shaped first groove and an arc-shaped second groove are provided inside the back pressure groove in a radial direction. A distance between the second groove and the back pressure groove is shorter than a distance between the first groove and the back pressure groove. A revolving scroll is provided with a first hole and a second hole for guiding lubricant oil from an oil supply path to the end plate surface side of the fixed scroll. At least part of a movement locus of an opening of the first hole is included in the first groove. At least part of a movement locus of an opening of the second hole is included in the second groove. The first groove and the second groove at least partially overlap with each other in the radial direction.

5. 发明申请

US20230076531A1 ROTOR ASSEMBLY AND COMPRESSOR 有权
公开(公告)号：US20230076531A1
公开(公告)日：2023-03-09
申请号：US17728235
申请日：2022-04-25
申请人： GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGY CO., LTD.
发明人： Yang LI , Zhenhao LI
IPC分类号： F04C29/02 , F04C18/02 , F04C29/00
摘要： A rotor assembly and a compressor are provided. The rotor assembly has a crankshaft, a rotor core, a balance weight and an oil baffle shield. The rotor core is provided with a vent hole. The vent hole extends through the rotor core along an axial direction of the rotor core. The balance weight is located at one end of the rotor core approximate to an oil sump of the compressor. The oil baffle shield is arranged to cover the balance weight and is provided with a central opening. The crankshaft extends through the central opening. An accommodating space is defined between the oil baffle shield and the rotor core. The accommodating space is communicated with the vent hole.

6. 发明授权

US11592024B2 Multi-stage rotary vane pump 有权
公开(公告)号：US11592024B2
公开(公告)日：2023-02-28
申请号：US15762622
申请日：2016-09-20
申请人： Leybold GmbH
发明人： Jean-Francois Aubert , Christophe Despesse
IPC分类号： F04C23/00 , F04C25/02 , F04C18/344 , F04C29/02
摘要： A multi-stage rotary vane pump comprising at least two rotor elements. The rotor elements are supported by a rotor shaft. The rotor elements and the rotor shaft are in the form of a single piece.

7. 发明申请

US20230040776A1 VIRTUAL SENSOR FOR WATER CONTENT IN OIL CIRCUIT 有权
公开(公告)号：US20230040776A1
公开(公告)日：2023-02-09
申请号：US17967023
申请日：2022-10-17
申请人： Wolfgang FEILER
发明人： Wolfgang FEILER
IPC分类号： F04C28/28 , F04C29/02 , G01N11/04
摘要： A method for monitoring an oil-injected screw compressor configured to compress aspirated air by returning oil from an oil separator vessel (11) to a compression chamber (12) of a compressor block (30), for condensate formation in the oil circuit due to a too low compression discharge temperature (VET), determines a water inlet mass flow {acute over (m)}ein(t) and a water outlet mass flow {acute over (m)}aus (t) for a point in time t and determines generated condensate flow Δ{acute over (m)}w (t)={acute over (m)}ein(t)−{acute over (m)}aus (t) on the basis of difference formation.

8. 发明申请

US20230017886A1 OIL SEPARATOR 有权
公开(公告)号：US20230017886A1
公开(公告)日：2023-01-19
申请号：US17945655
申请日：2022-09-15
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yoshiyuki UEMURA , Tatsuya KATAYAMA
IPC分类号： F04C29/02 , B01D17/02
摘要： An oil separator includes a cover attached to an opening portion on a discharge side of a compressor, a discharge flow path formed in an inside of the cover, and an oil separation portion configured to separate an oil from a fluid that has flowed out from the discharge flow path. A dividing wall portion partitions an internal space facing the opening portion into a plurality of spaces. The dividing wall portion is provided in the inside of the cover. The internal space is a discharge space into which a high-pressure gas refrigerant discharged from the compressor flows. Each of the plurality of spaces faces a high-pressure chamber in the opening portion so as to be in direct communication with the high-pressure chamber.

9. 发明申请

US20230013329A1 SLIDING COMPONENT 有权
公开(公告)号：US20230013329A1
公开(公告)日：2023-01-19
申请号：US17784599
申请日：2020-12-16
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hiroshi SUZUKI , Yuichiro TOKUNAGA
IPC分类号： F04C18/02 , F04C29/02 , F16J15/18
摘要： Provided is a sliding component capable of reducing the frictional resistance of a sliding surface entailing eccentric rotation. A sliding component is formed in an annular shape and has a sliding surface relatively sliding with eccentric rotation. A plurality of grooves not communicating with spaces on the inner and outer diameter sides of the sliding component are circumferentially provided in the sliding surface.

10. 发明授权

US11549511B2 Scroll compressor 有权
公开(公告)号：US11549511B2
公开(公告)日：2023-01-10
申请号：US16953635
申请日：2020-11-20
申请人： LG ELECTRONICS INC.
发明人： Changeol Jo
IPC分类号： F04C18/02 , F04C29/02
摘要： A scroll compressor may include a casing having a low pressure portion and a high pressure portion, a refrigerant suction pipe that communicates with the low pressure portion and a refrigerant discharge pipe that communicates with the high pressure portion, a drive motor installed inside of the low pressure portion, an orbiting scroll coupled to the drive motor to perform an orbiting motion, a non-orbiting scroll engaged with the orbiting scroll to form a compression chamber, and a refrigerant guide provided on the non-orbiting scroll to guide a refrigerant suctioned into the low pressure portion to be suctioned into the compression chamber, whereby an increase in specific volume of refrigerant suctioned into the compression chamber may be suppressed, and thus, an amount of refrigerant suctioned into the compression chamber may increase, thereby improving efficiency of the compressor.

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