SG11201808166XA - Oil-free screw compressor - Google Patents

Oil-free screw compressor

Info

Publication number
SG11201808166XA
SG11201808166XA SG11201808166XA SG11201808166XA SG11201808166XA SG 11201808166X A SG11201808166X A SG 11201808166XA SG 11201808166X A SG11201808166X A SG 11201808166XA SG 11201808166X A SG11201808166X A SG 11201808166XA SG 11201808166X A SG11201808166X A SG 11201808166XA
Authority
SG
Singapore
Prior art keywords
shaft
seal
communication section
seal device
screw
Prior art date
Application number
SG11201808166XA
Inventor
Miyatake Toshiyuki
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of SG11201808166XA publication Critical patent/SG11201808166XA/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • 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
    • F04C2240/50—Bearings
    • F04C2240/52—Bearings for assemblies with supports on both sides
    • 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
    • F04C2240/60—Shafts
    • F04C2240/601—Shaft flexion

Landscapes

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

Abstract

The oil-free screw compressor includes: a screw rotor 14 including a screw 14a and a shaft 14c; a bearing 26; a first shaft seal device 30 disposed between the screw and the bearing, the first shaft seal device including: a first seal 38a and a first communication section 30a configured to communicate the bearing side with respect to between the shaft and the first seal, and an outer peripheral face of the first shaft seal device; a second shaft seal device 32 disposed between the first shaft seal device and the bearing, the second shaft seal device including: a second seal 32a and a second communication section 32c configured to communicate the screw side with respect to between the shaft and the second seal, and an outer peripheral face of the second shaft seal device; and a first seal member 50 including a seal between the first communication section and the second communication section. The casing 12 includes an atmosphere communication section 12m configured to communicate the first communication section and the second communication section with an atmosphere. A sectional area in the first communication section is larger than a sectional area between the seal of the first seal member and the shaft. 61
SG11201808166XA 2016-03-25 2017-03-21 Oil-free screw compressor SG11201808166XA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016061584A JP6710072B2 (en) 2016-03-25 2016-03-25 Oil-free screw compressor
PCT/JP2017/011140 WO2017164153A1 (en) 2016-03-25 2017-03-21 Oil free screw compressor

Publications (1)

Publication Number Publication Date
SG11201808166XA true SG11201808166XA (en) 2018-10-30

Family

ID=59899503

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201808166XA SG11201808166XA (en) 2016-03-25 2017-03-21 Oil-free screw compressor

Country Status (10)

Country Link
US (1) US10954941B2 (en)
EP (1) EP3434903B1 (en)
JP (1) JP6710072B2 (en)
KR (1) KR102043764B1 (en)
CN (1) CN108884834B (en)
BR (1) BR112018069509A2 (en)
MY (1) MY193265A (en)
SG (1) SG11201808166XA (en)
TW (1) TWI638106B (en)
WO (1) WO2017164153A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102072959B1 (en) 2018-08-27 2020-02-04 성균관대학교산학협력단 A pH-sensitive block copolymer and its use for cell culture

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951190A (en) * 1982-09-17 1984-03-24 Hitachi Ltd Oil thrower device of oil-free screw compressor
JPS61104187A (en) * 1984-10-29 1986-05-22 Hitachi Ltd Shaft sealing device for vacuum pump
JPH03550Y2 (en) 1985-02-27 1991-01-10
JPH02124289U (en) * 1989-03-24 1990-10-12
JPH03110138U (en) * 1990-02-26 1991-11-12
JP3535938B2 (en) * 1996-02-02 2004-06-07 株式会社神戸製鋼所 Two-stage screw compressor
JP3742158B2 (en) * 1996-10-01 2006-02-01 株式会社神戸製鋼所 Oil-free screw compressor
CN1114044C (en) * 1999-01-11 2003-07-09 纳幕尔杜邦公司 Screw compressor
JP4072811B2 (en) * 2001-03-19 2008-04-09 北越工業株式会社 Shaft seal device for oil-free screw compressor
JP2005090371A (en) * 2003-09-18 2005-04-07 Tokyo Electric Power Co Inc:The Motor built-in fuel gas compressor
CN100516534C (en) * 2007-11-27 2009-07-22 无锡压缩机股份有限公司 Dry helical lobe compressor host rotor spindle sealing structure
JP2010053799A (en) 2008-08-29 2010-03-11 Hitachi Plant Technologies Ltd Screw compressor
US9068571B2 (en) * 2009-04-03 2015-06-30 Ergoseal, Inc. Seal for oil-free rotary displacement compressor
JP6190293B2 (en) * 2014-03-10 2017-08-30 株式会社神戸製鋼所 Oil-free screw compressor
JP6469549B2 (en) 2014-09-29 2019-02-13 株式会社神戸製鋼所 Oil-free screw compressor
JP6284466B2 (en) * 2014-09-29 2018-02-28 株式会社神戸製鋼所 Oil-free screw compressor

Also Published As

Publication number Publication date
US10954941B2 (en) 2021-03-23
JP6710072B2 (en) 2020-06-17
KR20180112038A (en) 2018-10-11
BR112018069509A2 (en) 2019-01-29
TW201802379A (en) 2018-01-16
EP3434903A4 (en) 2019-12-11
KR102043764B1 (en) 2019-11-12
CN108884834B (en) 2020-03-03
US20190107109A1 (en) 2019-04-11
MY193265A (en) 2022-09-29
TWI638106B (en) 2018-10-11
EP3434903A1 (en) 2019-01-30
CN108884834A (en) 2018-11-23
EP3434903B1 (en) 2023-03-01
WO2017164153A1 (en) 2017-09-28
JP2017172531A (en) 2017-09-28

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