ZA833087B - Roots-type pump - Google Patents

Roots-type pump

Info

Publication number
ZA833087B
ZA833087B ZA833087A ZA833087A ZA833087B ZA 833087 B ZA833087 B ZA 833087B ZA 833087 A ZA833087 A ZA 833087A ZA 833087 A ZA833087 A ZA 833087A ZA 833087 B ZA833087 B ZA 833087B
Authority
ZA
South Africa
Prior art keywords
roots
type pump
pump
type
Prior art date
Application number
ZA833087A
Other languages
English (en)
Inventor
Udo Segebrecht
Christian Dahmlos
Erwin Holthusen
Original Assignee
Sihi Gmbh & Co Kg
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 Sihi Gmbh & Co Kg filed Critical Sihi Gmbh & Co Kg
Publication of ZA833087B publication Critical patent/ZA833087B/xx

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Closures For Containers (AREA)
ZA833087A 1982-05-06 1983-05-02 Roots-type pump ZA833087B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3216990A DE3216990A1 (de) 1982-05-06 1982-05-06 Waelzkolbenpumpe

Publications (1)

Publication Number Publication Date
ZA833087B true ZA833087B (en) 1984-01-25

Family

ID=6162896

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA833087A ZA833087B (en) 1982-05-06 1983-05-02 Roots-type pump

Country Status (10)

Country Link
EP (1) EP0107691B1 (da)
JP (1) JPS59500825A (da)
AU (1) AU1516583A (da)
DE (2) DE3216990A1 (da)
DK (1) DK153174C (da)
ES (1) ES271911Y (da)
IT (1) IT1212953B (da)
NO (1) NO834827L (da)
WO (1) WO1983004075A1 (da)
ZA (1) ZA833087B (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787831A (en) * 1983-09-20 1988-11-29 Air Products And Chemicals, Inc. Dual seal system for roots blower
DE3344953A1 (de) * 1983-12-13 1985-06-20 Leybold-Heraeus GmbH, 5000 Köln Zweiwellen-vakuumpumpe mit getrieberaum-evakuierung
DE3540959A1 (de) * 1984-12-22 1986-07-03 Leybold-Heraeus GmbH, 5000 Köln Oelfoerdereinrichtung fuer vakuumpumpen
DE3574274D1 (en) * 1985-04-24 1989-12-21 Leybold Ag Multistage vacuum pump
DE102014101113A1 (de) * 2014-01-30 2015-07-30 Pfeiffer Vacuum Gmbh Vakuumpumpe
CN106930945B (zh) * 2015-12-29 2021-03-02 罗伯特·博世有限公司 增压器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB217575A (en) * 1923-06-11 1924-10-16 Sulzer Ag Improvements in or relating to rotary compressors
DE471012C (de) * 1925-06-06 1929-03-19 Der Maschinenfabriken Escher A Einrichtung zum Abdichten von insbesondere zum Foerdern von Gasen und Daempfen bestimmten Maschinen mit umlaufenden Wellen
DE684266C (de) * 1937-01-01 1939-11-24 Bosch Gmbh Robert Regelvorrichtung fuer das Ladegeblaese einer Brennkraftmaschine
US2178425A (en) * 1937-02-18 1939-10-31 Gen Electric Refrigerating machine
US2620124A (en) * 1946-12-26 1952-12-02 Gen Motors Corp Compressor apparatus
US2679412A (en) * 1950-03-24 1954-05-25 Read Standard Corp Seal
US2677944A (en) * 1950-12-01 1954-05-11 Alonzo W Ruff Plural stage refrigeration apparatus
GB734893A (en) * 1953-05-28 1955-08-10 Harry Skeet Broom Improvements in or relating to rotary air compressors
US3292847A (en) * 1964-11-03 1966-12-20 Dresser Ind Lubricant sealing means for rotary positive displacement pump
US3556697A (en) * 1969-04-10 1971-01-19 Ingersoll Rand Co Sealing arrangement for vacuum pump
DE1939717B2 (de) * 1969-08-05 1978-03-23 Leybold-Heraeus Gmbh & Co Kg, 5000 Koeln Waelzkolbenpumpe
GB1378543A (en) * 1971-07-08 1974-12-27 Borg Warner Rotary compressor of sliding vane type
GB1552385A (en) * 1975-05-13 1979-09-12 Maekawa Seisakusho Kk Device for compressing or expanding a gas or for pumping a liquid
DE3007267A1 (de) * 1980-02-27 1981-09-03 Leybold Heraeus Gmbh & Co Kg Wellendichtung fuer waelzkolbenpumpen

Also Published As

Publication number Publication date
ES271911U (es) 1984-08-01
DK153174B (da) 1988-06-20
NO834827L (no) 1983-12-27
AU1516583A (en) 1983-12-02
EP0107691A1 (de) 1984-05-09
JPS59500825A (ja) 1984-05-10
DE3373202D1 (en) 1987-10-01
ES271911Y (es) 1985-02-16
IT8309417A0 (it) 1983-05-06
DE3216990A1 (de) 1983-11-10
DK3984A (da) 1984-01-05
IT1212953B (it) 1989-12-07
WO1983004075A1 (en) 1983-11-24
DK153174C (da) 1988-12-12
EP0107691B1 (de) 1987-08-26
DK3984D0 (da) 1984-01-05

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