ZA936403B - Compressor - Google Patents

Compressor

Info

Publication number
ZA936403B
ZA936403B ZA936403A ZA936403A ZA936403B ZA 936403 B ZA936403 B ZA 936403B ZA 936403 A ZA936403 A ZA 936403A ZA 936403 A ZA936403 A ZA 936403A ZA 936403 B ZA936403 B ZA 936403B
Authority
ZA
South Africa
Prior art keywords
shaft
compressor
bearing
rotor stages
impeller rotor
Prior art date
Application number
ZA936403A
Inventor
Richard Gozdawa
Original Assignee
Welsh Innovations 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 Welsh Innovations Ltd filed Critical Welsh Innovations Ltd
Publication of ZA936403B publication Critical patent/ZA936403B/en

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
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5826—Cooling at least part of the working fluid in a heat exchanger

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

A compressor (1) comprises a rotatable shaft (2) driven by an electric motor (7, 23) having a rotor (7) mounted on the shaft (2). The shaft (2) carries at least two impeller rotor stages (4, 5, 6) arranged with the motor positioned intermediately between the impeller rotor stages. An intercooler (15) is connected intermediate the impeller rotor stages (4, 5, 6), and the shaft (2) is supported by bearing means (8, 9, 10) comprising at least one tilting pad journal bearing arranged to be self generating and air or gas lubricated, and having bearing pads provided with a ceramics bearing surface. The compressor (1) is extremely efficient and particularly suitable for use in "dry air" applications where it is important to avoid contamination of the working gas, because the bearings are not lubricated with oil.
ZA936403A 1992-09-10 1993-08-31 Compressor ZA936403B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929219167A GB9219167D0 (en) 1992-09-10 1992-09-10 Compressor

Publications (1)

Publication Number Publication Date
ZA936403B true ZA936403B (en) 1994-08-08

Family

ID=10721708

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA936403A ZA936403B (en) 1992-09-10 1993-08-31 Compressor

Country Status (13)

Country Link
EP (1) EP0667934B1 (en)
JP (1) JPH08501367A (en)
CN (1) CN1086587A (en)
AT (1) ATE164662T1 (en)
AU (1) AU682318B2 (en)
CA (1) CA2144181A1 (en)
DE (1) DE69317791T2 (en)
GB (1) GB9219167D0 (en)
IL (1) IL106924A (en)
MY (1) MY109678A (en)
RU (1) RU2118714C1 (en)
WO (1) WO1994005913A1 (en)
ZA (1) ZA936403B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9404436D0 (en) * 1994-03-08 1994-04-20 Welsh Innovations Ltd Compressor
US5795138A (en) * 1992-09-10 1998-08-18 Gozdawa; Richard Compressor
FI103296B1 (en) 1997-12-03 1999-05-31 High Speed Tech Ltd Oy A method for producing a pressurized gas
JPH11294879A (en) * 1998-02-16 1999-10-29 Daikin Ind Ltd Refrigerating system
RU2150609C1 (en) * 1999-02-18 2000-06-10 Научно-исследовательский институт низких температур при МАИ Centrifugal compressor unit and electric motor
US6710487B2 (en) 2000-01-11 2004-03-23 Gsi Lumonics Corporation Rotary device with matched expansion ceramic bearings
EP1321680A3 (en) 2001-12-22 2003-12-10 Miscel Oy Turbo machine
DE10163950A1 (en) * 2001-12-22 2003-07-03 Miscel Oy Ltd Flow machine unit has cooling lubricant supplied to bearing set for common shaft positioned between rotor of electric motor and blade wheel housing
GB2384274A (en) * 2002-01-16 2003-07-23 Corac Group Plc Downhole compressor with electric motor and gas bearings
CA2373905A1 (en) * 2002-02-28 2003-08-28 Ronald David Conry Twin centrifugal compressor
EP1353041A1 (en) * 2002-04-12 2003-10-15 ABB Turbo Systems AG Turbocharger with means on the shaft to axially restrain said shaft in the event of the compressor bursting
CN102151852B (en) * 2011-04-27 2012-06-27 天津大学 Hydro-hybrid ceramic main shaft device
RU2533948C2 (en) * 2013-03-12 2014-11-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Thrust bearing assembly
RU2529070C1 (en) * 2013-03-12 2014-09-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Thrust bearing unit
RU2542806C1 (en) * 2013-08-08 2015-02-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Thrust bearing assembly
WO2015157434A1 (en) * 2014-04-08 2015-10-15 Caire Inc. Rotary systemes lubricated by fluid being processed
CN104967253B (en) * 2015-07-16 2018-03-30 莱克电气股份有限公司 At a high speed without Hall three-phase motor of dust collector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933416A (en) * 1945-05-01 1976-01-20 Donelian Khatchik O Hermatically sealed motor blower unit with stator inside hollow armature
US4125345A (en) * 1974-09-20 1978-11-14 Hitachi, Ltd. Turbo-fluid device
GB1512381A (en) * 1975-05-06 1978-06-01 Nat Res Dev Gas compression apparatus including an axial thrust bearing
CH663644A5 (en) * 1982-02-22 1987-12-31 Bbc Brown Boveri & Cie TURBO COMPRESSORS.
FR2528127A1 (en) * 1982-06-04 1983-12-09 Creusot Loire HIGH-SPEED INTEGRATED ELECTRIC CENTRIFUGAL MOTORCYMO COMPRESSOR
EP0297691A1 (en) * 1987-06-11 1989-01-04 Acec Energie S.A. Motor and compressor combination
DE3729486C1 (en) * 1987-09-03 1988-12-15 Gutehoffnungshuette Man Compressor unit
JPH03121306A (en) * 1989-10-02 1991-05-23 Toshiba Corp Tilting pad shaped dynamic pressure gas bearing

Also Published As

Publication number Publication date
DE69317791T2 (en) 1998-12-10
EP0667934B1 (en) 1998-04-01
RU2118714C1 (en) 1998-09-10
GB9219167D0 (en) 1992-10-28
IL106924A (en) 1996-10-16
ATE164662T1 (en) 1998-04-15
RU95109152A (en) 1997-02-20
CN1086587A (en) 1994-05-11
WO1994005913A1 (en) 1994-03-17
IL106924A0 (en) 1993-12-28
AU682318B2 (en) 1997-10-02
MY109678A (en) 1997-04-30
CA2144181A1 (en) 1994-03-17
EP0667934A1 (en) 1995-08-23
AU4976793A (en) 1994-03-29
DE69317791D1 (en) 1998-05-07
JPH08501367A (en) 1996-02-13

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