EP4461969A4 - Turbomachine à fluide et dispositif de réfrigération - Google Patents

Turbomachine à fluide et dispositif de réfrigération

Info

Publication number
EP4461969A4
EP4461969A4 EP24730180.7A EP24730180A EP4461969A4 EP 4461969 A4 EP4461969 A4 EP 4461969A4 EP 24730180 A EP24730180 A EP 24730180A EP 4461969 A4 EP4461969 A4 EP 4461969A4
Authority
EP
European Patent Office
Prior art keywords
turbofluid
machine
cooling device
cooling
turbofluid machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24730180.7A
Other languages
German (de)
English (en)
Other versions
EP4461969A1 (fr
Inventor
Arihiro Iwata
Kosuke Nishimura
Koichi Tanaka
Daigo Fukuda
Yuki KAWACHIYA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP4461969A1 publication Critical patent/EP4461969A1/fr
Publication of EP4461969A4 publication Critical patent/EP4461969A4/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051—Axial thrust balancing
    • F04D29/0516—Axial thrust balancing balancing pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0416—Axial thrust balancing balancing pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP24730180.7A 2023-03-23 2024-03-06 Turbomachine à fluide et dispositif de réfrigération Pending EP4461969A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023046289A JP7598046B2 (ja) 2023-03-23 2023-03-23 ターボ流体機械、及び冷凍装置
PCT/JP2024/008516 WO2024195542A1 (fr) 2023-03-23 2024-03-06 Turbomachine à fluide et dispositif de réfrigération

Publications (2)

Publication Number Publication Date
EP4461969A1 EP4461969A1 (fr) 2024-11-13
EP4461969A4 true EP4461969A4 (fr) 2025-07-16

Family

ID=91585877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24730180.7A Pending EP4461969A4 (fr) 2023-03-23 2024-03-06 Turbomachine à fluide et dispositif de réfrigération

Country Status (3)

Country Link
EP (1) EP4461969A4 (fr)
JP (1) JP7598046B2 (fr)
WO (1) WO2024195542A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385768A (en) * 1979-07-19 1983-05-31 Rotoflow Corporation, Inc. Shaft mounting device and method
US20030113215A1 (en) * 2001-12-13 2003-06-19 Lg Electronics Inc. Reverse rotation preventing structure of centrifugal compressor
US20110255963A1 (en) * 2010-04-19 2011-10-20 Chun Kyung Kim Centrifugal compressor
US20160273324A1 (en) * 2015-03-18 2016-09-22 Hitachi, Ltd. Downhole Compressor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01263460A (ja) * 1988-04-13 1989-10-19 Hitachi Ltd 冷凍装置
KR100273359B1 (ko) 1997-11-29 2001-01-15 구자홍 터보 압축기
KR20020062031A (ko) 2001-01-19 2002-07-25 엘지전자주식회사 터보 압축기
JP2010001868A (ja) 2008-06-23 2010-01-07 Toyota Motor Corp 遠心圧縮機
CN106968984B (zh) 2015-12-11 2020-10-23 松下知识产权经营株式会社 涡轮机
JP6887968B2 (ja) 2018-03-28 2021-06-16 ダイキン工業株式会社 スラスト磁気軸受およびそれを備えたターボ圧縮機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385768A (en) * 1979-07-19 1983-05-31 Rotoflow Corporation, Inc. Shaft mounting device and method
US20030113215A1 (en) * 2001-12-13 2003-06-19 Lg Electronics Inc. Reverse rotation preventing structure of centrifugal compressor
US20110255963A1 (en) * 2010-04-19 2011-10-20 Chun Kyung Kim Centrifugal compressor
US20160273324A1 (en) * 2015-03-18 2016-09-22 Hitachi, Ltd. Downhole Compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024195542A1 *

Also Published As

Publication number Publication date
WO2024195542A1 (fr) 2024-09-26
EP4461969A1 (fr) 2024-11-13
JP2024135543A (ja) 2024-10-04
JP7598046B2 (ja) 2024-12-11

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Inventor name: KAWACHIYA, YUKI

Inventor name: FUKUDA, DAIGO

Inventor name: TANAKA, KOICHI

Inventor name: NISHIMURA, KOSUKE

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