EP4400724B1 - Verdichter - Google Patents

Verdichter

Info

Publication number
EP4400724B1
EP4400724B1 EP22895432.7A EP22895432A EP4400724B1 EP 4400724 B1 EP4400724 B1 EP 4400724B1 EP 22895432 A EP22895432 A EP 22895432A EP 4400724 B1 EP4400724 B1 EP 4400724B1
Authority
EP
European Patent Office
Prior art keywords
oil
oil return
return pipe
housing
compressor
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.)
Active
Application number
EP22895432.7A
Other languages
English (en)
French (fr)
Other versions
EP4400724A4 (de
EP4400724C0 (de
EP4400724A1 (de
Inventor
Masakazu ISHITOBI
Yoshiaki Miyamoto
Takashi Watanabe
Yogo Takasu
Masahiro Taniguchi
Yoshiki Kobayashi
Yoichi SAKAO
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems 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 Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP4400724A1 publication Critical patent/EP4400724A1/de
Publication of EP4400724A4 publication Critical patent/EP4400724A4/de
Application granted granted Critical
Publication of EP4400724C0 publication Critical patent/EP4400724C0/de
Publication of EP4400724B1 publication Critical patent/EP4400724B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/806—Pipes for fluids; Fittings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/809—Lubricant sump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/12—Vibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)

Claims (9)

  1. Kompressor (1) umfassend:
    einen Drehwellenabschnitt (15), der drehbar angetrieben wird;
    einen Kompressionsmechanismus (12, 13), der mit einem Ende des Drehwellenabschnitts (15) verbunden ist und ein Kältemittel komprimiert;
    einen Lagerabschnitt (31), der den Drehwellenabschnitt (15) stützt bzw. trägt;
    ein Gehäuse (11), das den Drehwellenabschnitt (15), den Kompressionsmechanismus (12, 13) und den Lagerabschnitt (31) aufnimmt und ein Ölreservoir (O1) in einem unteren Abschnitt aufweist; und
    eine Ölrücklaufleitung (67), die in dem Gehäuse (11) bereitgestellt ist und deren eines Ende an dem Lagerabschnitt (31) befestigt ist und deren anderes Ende sich zu dem Ölreservoir (O1) erstreckt, sodass in dem Lagerabschnitt (31) gehaltenes bzw. befindliches Öl zu dem Ölreservoir (O1) zurückgeführt wird,
    dadurch gekennzeichnet, dass eine Mehrzahl der Ölrücklaufleitungen (67) parallel bereitgestellt sind, sodass Längsachsen davon parallel zueinander sind, und die Ölrücklaufleitungen (67) gebündelt sind, wobei das andere Ende der Ölrücklaufleitung (67) an einer Innenwand des Gehäuses (11) befestigt ist.
  2. Kompressor (1) nach Anspruch 1, ferner umfassend ein stabförmiges Glied (70), das zwischen den anderen, zueinander benachbarten bzw. angrenzenden Enden der Ölrücklaufleitungen (67) bereitgestellt und an jeder der Seitenflächen bzw. -oberflächen der anderen, zueinander benachbarten bzw. angrenzenden Enden befestigt ist,
    wobei das stabförmige Glied (70) an der Innenwand des Gehäuses (11) befestigt ist.
  3. Kompressor (1) nach Anspruch 1, ferner umfassend eine Befestigungshalterung (78), die an der Innenwand des Gehäuses (11) befestigt ist und mit der Innenwand einen Raum bildet, wobei die anderen Enden der Mehrzahl von Ölrücklaufleitungen (67) in einem Zustand gebündelt sind, in dem sie in den Raum eingesetzt sind.
  4. Kompressor (1) nach einem der Ansprüche 1 bis 3, wobei die Ölrücklaufleitung (67) in einem Zustand installiert ist, in dem sie nahe an der Innenwand des Gehäuses (11) über ½ oder mehr einer Länge in einer Längsrichtung von dem anderen Ende aus installiert ist.
  5. Kompressor (1) nach einem der Ansprüche 1 bis 4, wobei die Ölrücklaufleitung (67) denselben Durchmesser in einer Längsrichtung davon aufweist.
  6. Kompressor (1) nach einem der Ansprüche 1 bis 5, wobei das andere Ende der Ölrücklaufleitung (67) eine konische Form geschnitten an einer in Bezug auf eine Längsachse der Ölrücklaufleitung geneigten Fläche bzw. Oberfläche aufweist und
    eine Spitze (67a) dieser konischen Form sich an einer Innenwandseite des Gehäuses (11) befindet.
  7. Kompressor (1) nach einem der Ansprüche 1 bis 6, ferner umfassend:
    einen anderen bzw. weiteren Kompressionsmechanismus (12), der mit dem anderen Ende des Drehwellenabschnitts (15) verbunden ist und ein Kältemittel komprimiert; und
    eine obere Ölflächen- bzw. -oberflächenplatte (75), die unterhalb einer Kältemittelauslassposition des anderen Kompressionsmechanismus (12) und oberhalb einer in dem Ölreservoir (O1) ausgebildeten Ölfläche bzw. -oberfläche angeordnet ist, um die Ölfläche zu bedecken.
  8. Kompressor (1) nach Anspruch 7, wobei das andere Ende der Ölrücklaufleitung (67) unterhalb der oberen Ölflächenplatte (75) offen ist.
  9. Kompressor (1) nach Anspruch 7 oder 8, ferner umfassend eine Ölabscheider-Ölrücklaufleitung (65), die Öl von einem Ölabscheider zurückführt, der das Öl, das aus dem Kältemittel abgeschieden wird, das aus dem Kompressor (1) ausgelassen wird, speichert,
    wobei die Ölabscheider-Ölrücklaufleitung (65) unterhalb der oberen Ölflächenplatte (75) offen ist.
EP22895432.7A 2021-11-22 2022-10-31 Verdichter Active EP4400724B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021189461A JP7830084B2 (ja) 2021-11-22 2021-11-22 圧縮機
PCT/JP2022/040827 WO2023090149A1 (ja) 2021-11-22 2022-10-31 圧縮機

Publications (4)

Publication Number Publication Date
EP4400724A1 EP4400724A1 (de) 2024-07-17
EP4400724A4 EP4400724A4 (de) 2024-12-18
EP4400724C0 EP4400724C0 (de) 2026-03-11
EP4400724B1 true EP4400724B1 (de) 2026-03-11

Family

ID=86396796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22895432.7A Active EP4400724B1 (de) 2021-11-22 2022-10-31 Verdichter

Country Status (3)

Country Link
EP (1) EP4400724B1 (de)
JP (1) JP7830084B2 (de)
WO (1) WO2023090149A1 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4192158B2 (ja) * 2005-03-24 2008-12-03 日立アプライアンス株式会社 密閉形スクロール圧縮機及び冷凍空調装置
JP2009097486A (ja) * 2007-10-19 2009-05-07 Mitsubishi Heavy Ind Ltd 圧縮機
JP5701112B2 (ja) * 2011-03-15 2015-04-15 三菱重工業株式会社 密閉型圧縮機
US9470230B2 (en) * 2011-04-25 2016-10-18 Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited Refrigerant compressor and refrigeration cycle apparatus using the same
JP6812230B2 (ja) 2016-12-19 2021-01-13 日立ジョンソンコントロールズ空調株式会社 圧縮機
JP6896569B2 (ja) * 2017-08-29 2021-06-30 三菱重工サーマルシステムズ株式会社 スクロール圧縮機及びその制御方法並びに空気調和装置
GB2594196B (en) * 2019-01-28 2022-12-07 Mitsubishi Electric Corp Scroll compressor

Also Published As

Publication number Publication date
WO2023090149A1 (ja) 2023-05-25
JP2023076186A (ja) 2023-06-01
EP4400724A4 (de) 2024-12-18
EP4400724C0 (de) 2026-03-11
JP7830084B2 (ja) 2026-03-16
EP4400724A1 (de) 2024-07-17

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