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1. 发明公开

EP4339464A1 TURBOCOMPRESSOR AND METHOD FOR CONTROLLING SAME 审中-公开
公开(公告)号：EP4339464A1
公开(公告)日：2024-03-20
申请号：EP22807744.2
申请日：2022-05-09
申请人： LG Electronics Inc.
发明人： OH, Junchul , BAE, Hyojo , MOON, Changgook , LEE, Byeongchul
IPC分类号： F04D17/12 , F04D25/06 , F04D29/053 , F04D29/28 , F04D29/42 , F04D27/02
摘要： The present invention provides a turbocompressor and a method for controlling same, the turbocompressor comprising: a driving unit for enabling generation of rotational power for compressing refrigerant; a shaft extending in one direction and installed in the driving unit to be able to rotate by means of power generated by the driving unit; and first to third compression units installed on the shaft from one side of the shaft. The first compression unit comprises a first impeller rotated by power from the driving unit such that refrigerant discharged from an evaporator can be suctioned, and the suctioned refrigerant can be compressed and discharged. The second compression unit comprises a second impeller rotated by power from the driving unit such that refrigerant discharged from the first compression unit can be suctioned, and the suctioned refrigerant can be compressed and discharged. The third compression unit comprises a third impeller. The third impeller makes it possible to suction refrigerant discharged from the second compression unit, to compress the suctioned refrigerant, and to discharge same to the outside. Alternatively, the third impeller makes it possible to provide the refrigerant while bypassing the first compression unit.

2. 发明公开

EP4325059A1 COMPRESSOR HAVING A DUAL-IMPELLER 审中-公开
公开(公告)号：EP4325059A1
公开(公告)日：2024-02-21
申请号：EP23192011.7
申请日：2023-08-17
申请人： PRATT & WHITNEY CANADA CORP.
发明人： IVANKOVIC, Milos
IPC分类号： F04D17/12 , F04D29/44 , F01D3/02 , F01D5/04 , F01D9/06 , F02C3/08
摘要： A compressor (12) for an aircraft engine (10), has: a dual-impeller (20) having: a first impeller (21) having a first inlet (21A) and a first outlet (21B) located radially outwardly of the first inlet (21A), and a second impeller (22) rotatable with the first impeller (21), the second impeller (22) having a second inlet (22A) and a second outlet (22B) located radially outwardly of the second inlet (22A), the first inlet (21A) and the second inlet (22A) facing opposite axial directions; and first conduits (31) having first conduit inlets (31A) and first conduit outlets (31B), the first conduit inlets (31A) fluidly connected to the first outlet (21B) of the first impeller (21), the first conduit outlets (31B) fluidly connected to the second inlet (22A) of the second impeller (22); and second conduits (32) having second conduits inlets (32A) fluidly connected to the second outlet (22B) of the second impeller (22), a second conduit of the second conduits (32) disposed circumferentially between two adjacent first conduits of the first conduits (31).

3. 发明授权

EP3577346B1 TURBOVERDICHTER MIT INTEGRIERTEN STRÖMUNGSKANÄLEN 有权
公开(公告)号：EP3577346B1
公开(公告)日：2024-02-14
申请号：EP18729652.0
申请日：2018-06-05
发明人： HOFMANN, Walter , BICKEL, Rolf
IPC分类号： F04D17/12 , F04D25/16 , F04D29/42 , F04D29/44

4. 发明公开

EP4314561A1 AN ASSEMBLY FOR COMPENSATING AXIAL FORCES IN A ROTATING FLOW MACHINE AND A MULTI-STAGE CENTRIFUGAL PUMP 审中-公开
公开(公告)号：EP4314561A1
公开(公告)日：2024-02-07
申请号：EP22718181.5
申请日：2022-03-25
申请人： Sulzer Management AG
发明人： VARTIAINEN, Jouni
IPC分类号： F04D1/06 , F04D17/12 , F04D29/041 , F04D29/12

5. 发明授权

EP3904690B1 MULTISTAGE CENTRIFUGAL COMPRESSOR WITH AN ANTI-SURGE SYSTEM AND CONTROL METHOD THEREFOR 审中-实审
公开(公告)号：EP3904690B1
公开(公告)日：2023-12-20
申请号：EP21168518.5
申请日：2021-04-15
发明人： GAO, Fei , DAY, Eric , QU, Li , LI, Jian-Wei
IPC分类号： F04D17/12 , F04D27/02

6. 发明授权

EP3411596B1 ACTIVE SURGE CONTROL IN CENTRIFUGAL COMPRESSORS USING MICROJET INJECTION 有权
公开(公告)号：EP3411596B1
公开(公告)日：2023-11-01
申请号：EP16889598.5
申请日：2016-02-04
发明人： ALVI, Farrukh , FERNANDEZ, Erik , GAVIN, Jennifer , BILBOW, William
IPC分类号： F04D27/02 , F04D29/68 , F04D29/44 , F04D17/12

7. 发明公开

EP4257826A1 PUMPING ARRANGEMENT 审中-公开
公开(公告)号：EP4257826A1
公开(公告)日：2023-10-11
申请号：EP23165190.2
申请日：2023-03-29
申请人： Sulzer Management AG
发明人： De Raeve, Karel
IPC分类号： F04D17/12 , F04D25/06 , F04D25/16 , F04D29/051 , F04D29/12
摘要： A pumping arrangement is proposed, comprising a first multistage pump (10a) and a second multistage pump (10b), wherein each multistage pump (10a, 10b) comprises:
a housing (2) with a pump unit (3) arranged in the housing (2), wherein the housing (2) comprises a pump inlet (21) for receiving a fluid with a suction pressure, and a pump outlet (22) for discharging the fluid with a discharge pressure, and wherein the pump unit (3) comprises a plurality of impellers (31, 32, 33) for conveying a fluid from the pump inlet (21) to the pump outlet (22), and
a pump shaft (5) for rotating about an axial direction (A), with the pump shaft (5) extending from a drive end (51) to a non-drive end (52), wherein each impeller (31, 32, 33) is mounted to the pump shaft (5) in a torque proof manner.
The second multistage pump (10b) comprises at least a first mechanical seal (50) for sealing the pump unit (3) at the pump shaft (5), with the first mechanical seal (50) having a process side (59) facing the pump unit (3). The pump outlet (22) of the first multistage pump (10a) is connected to the pump inlet (21) of the second multistage pump (10b), so that the first multistage pump (10a) and the second multistage pump (10b) are arranged in series. The process side (59) of the first mechanical seal of the second multistage pump (10b) is in fluid communication with the pump inlet (21) of the first multistage pump (10a).

8. 发明公开

EP4234942A1 GEARED COMPRESSOR 审中-公开
公开(公告)号：EP4234942A1
公开(公告)日：2023-08-30
申请号：EP23157736.2
申请日：2023-02-21
申请人： Mitsubishi Heavy Industries Compressor Corporation
发明人： MIYATA, Hiroyuki , KOBAYASHI, Masahiro
IPC分类号： F04D25/16 , F04D17/12 , F16H1/20
摘要： A geared compressor includes a drive gear, a first intermediate gear, a second intermediate gear, a first impeller and a second impeller connected to a first driven gear, and a third impeller and a fourth impeller connected to a second driven gear. When viewed from an axial direction, a drive axis of the drive gear is disposed below a first intermediate axis of the first intermediate gear, a second intermediate axis of the second intermediate gear, a first driven axis of the first driven gear, and a second driven axis of the second driven gear in a vertical direction. The first impeller has a larger outer diameter than the second impeller, the third impeller, and the fourth impeller.

9. 发明授权

EP3921546B1 FOIL BEARING ASSEMBLY 有权
公开(公告)号：EP3921546B1
公开(公告)日：2023-08-23
申请号：EP20710360.7
申请日：2020-02-06
发明人： GROSHEK, Jacob A. , PEREVOZCHIKOV, Michael M.
IPC分类号： F04D17/12 , F16C17/02 , F04D29/057 , F04D29/58 , F04D25/06 , F16C37/00

10. 发明授权

EP3797225B1 RADIALE STRÖMUNGSMASCHINE 有权
公开(公告)号：EP3797225B1
公开(公告)日：2023-07-05
申请号：EP19720916.6
申请日：2019-05-06
发明人： ZWAHLEN, Ronny , HILPERT, Daniel , MEIER, Peter , SCHERRER, Ernst
IPC分类号： F04D29/42 , F04D17/16 , F04D25/06 , F04D17/12

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