EP3225848A4 - Screw compressor and refrigeration cycle device - Google Patents

Screw compressor and refrigeration cycle device Download PDF

Info

Publication number
EP3225848A4
EP3225848A4 EP14906847.0A EP14906847A EP3225848A4 EP 3225848 A4 EP3225848 A4 EP 3225848A4 EP 14906847 A EP14906847 A EP 14906847A EP 3225848 A4 EP3225848 A4 EP 3225848A4
Authority
EP
European Patent Office
Prior art keywords
refrigeration cycle
screw compressor
cycle device
compressor
screw
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.)
Withdrawn
Application number
EP14906847.0A
Other languages
German (de)
French (fr)
Other versions
EP3225848A1 (en
Inventor
Masaaki Kamikawa
Masahiro Kanda
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 Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3225848A1 publication Critical patent/EP3225848A1/en
Publication of EP3225848A4 publication Critical patent/EP3225848A4/en
Withdrawn legal-status Critical Current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
    • 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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C18/48—Rotary-piston pumps with non-parallel axes of movement of co-operating members
    • F04C18/50—Rotary-piston pumps with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees
    • F04C18/52—Rotary-piston pumps with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • 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
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP14906847.0A 2014-11-26 2014-11-26 Screw compressor and refrigeration cycle device Withdrawn EP3225848A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/081284 WO2016084176A1 (en) 2014-11-26 2014-11-26 Screw compressor and refrigeration cycle device

Publications (2)

Publication Number Publication Date
EP3225848A1 EP3225848A1 (en) 2017-10-04
EP3225848A4 true EP3225848A4 (en) 2018-10-17

Family

ID=56073796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14906847.0A Withdrawn EP3225848A4 (en) 2014-11-26 2014-11-26 Screw compressor and refrigeration cycle device

Country Status (3)

Country Link
EP (1) EP3225848A4 (en)
JP (1) JP6234611B2 (en)
WO (1) WO2016084176A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018037469A1 (en) * 2016-08-23 2018-03-01 三菱電機株式会社 Screw compressor and refrigeration cycle device
WO2018131089A1 (en) * 2017-01-11 2018-07-19 三菱電機株式会社 Refrigeration cycle device
US20230184475A1 (en) * 2020-08-26 2023-06-15 Mitsubishi Electric Corporation Refrigeration cycle apparatus
CN114857793B (en) * 2022-05-20 2023-03-31 珠海格力电器股份有限公司 Condensing unit, liquid spraying control method and device thereof and air conditioner
US12546316B1 (en) * 2024-08-07 2026-02-10 Copeland Industrial Lp Low ratio oil injection port for applications without the requirement of an oil pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859814A (en) * 1973-10-03 1975-01-14 Vilter Manufacturing Corp Variable capacity rotary screw compressor
JPS55156291A (en) * 1979-05-25 1980-12-05 Hitachi Ltd Screw compressor
EP3006740A1 (en) * 2013-05-30 2016-04-13 Mitsubishi Electric Corporation Screw compressor and refrigeration cycle device
EP3199814A1 (en) * 2014-09-24 2017-08-02 Mitsubishi Electric Corporation Screw compressor and refrigeration cycle device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720864Y2 (en) * 1977-01-12 1982-05-06
JPS53101757A (en) * 1977-02-18 1978-09-05 Hitachi Ltd Screw refrigerator
JPH0820137B2 (en) * 1990-09-26 1996-03-04 ダイキン工業株式会社 Screw refrigeration equipment
JPH05106572A (en) * 1991-10-17 1993-04-27 Daikin Ind Ltd Single-axis screen compressor
JP4183021B1 (en) * 2007-06-11 2008-11-19 ダイキン工業株式会社 Compressor and refrigeration equipment
JP2009024534A (en) * 2007-07-18 2009-02-05 Daikin Ind Ltd Refrigeration equipment
GB0821275D0 (en) * 2008-11-20 2008-12-31 Aaf Mcquay Inc Screw compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859814A (en) * 1973-10-03 1975-01-14 Vilter Manufacturing Corp Variable capacity rotary screw compressor
JPS55156291A (en) * 1979-05-25 1980-12-05 Hitachi Ltd Screw compressor
EP3006740A1 (en) * 2013-05-30 2016-04-13 Mitsubishi Electric Corporation Screw compressor and refrigeration cycle device
EP3199814A1 (en) * 2014-09-24 2017-08-02 Mitsubishi Electric Corporation Screw compressor and refrigeration cycle device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016084176A1 *

Also Published As

Publication number Publication date
JP6234611B2 (en) 2017-11-22
WO2016084176A1 (en) 2016-06-02
JPWO2016084176A1 (en) 2017-04-27
EP3225848A1 (en) 2017-10-04

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20170504

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AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F04C 28/12 20060101ALI20180528BHEP

Ipc: F04C 28/26 20060101ALI20180528BHEP

Ipc: F04C 18/16 20060101ALI20180528BHEP

Ipc: F04C 29/04 20060101ALI20180528BHEP

Ipc: F04C 18/52 20060101AFI20180528BHEP

Ipc: F04C 29/00 20060101ALI20180528BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20180914

RIC1 Information provided on ipc code assigned before grant

Ipc: F04C 29/00 20060101ALI20180911BHEP

Ipc: F04C 18/52 20060101AFI20180911BHEP

Ipc: F04C 29/04 20060101ALI20180911BHEP

Ipc: F04C 28/12 20060101ALI20180911BHEP

Ipc: F04C 18/16 20060101ALI20180911BHEP

Ipc: F04C 28/26 20060101ALI20180911BHEP

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Effective date: 20190413