IT8421244A1 - "pompa a pistoni rotanti" - Google Patents

"pompa a pistoni rotanti"

Info

Publication number
IT8421244A1
IT8421244A1 IT1984A21244A IT2124484A IT8421244A1 IT 8421244 A1 IT8421244 A1 IT 8421244A1 IT 1984A21244 A IT1984A21244 A IT 1984A21244A IT 2124484 A IT2124484 A IT 2124484A IT 8421244 A1 IT8421244 A1 IT 8421244A1
Authority
IT
Italy
Prior art keywords
piston pump
rotating piston
rotating
pump
piston
Prior art date
Application number
IT1984A21244A
Other languages
English (en)
Other versions
IT1176255B (it
IT8421244A0 (it
Original Assignee
Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh
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 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh filed Critical Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh
Publication of IT8421244A0 publication Critical patent/IT8421244A0/it
Publication of IT8421244A1 publication Critical patent/IT8421244A1/it
Application granted granted Critical
Publication of IT1176255B publication Critical patent/IT1176255B/it

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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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
    • F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity
    • F05C2251/046—Expansivity dissimilar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/04—Composite, e.g. fibre-reinforced

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)
  • Rotary Pumps (AREA)
IT21244/84A 1983-06-16 1984-06-04 Pompa a pistoni rotanti IT1176255B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3321718A DE3321718A1 (de) 1983-06-16 1983-06-16 Waelzkolbenpumpe

Publications (3)

Publication Number Publication Date
IT8421244A0 IT8421244A0 (it) 1984-06-04
IT8421244A1 true IT8421244A1 (it) 1985-12-04
IT1176255B IT1176255B (it) 1987-08-18

Family

ID=6201619

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21244/84A IT1176255B (it) 1983-06-16 1984-06-04 Pompa a pistoni rotanti

Country Status (7)

Country Link
JP (1) JPS6011693A (it)
CH (1) CH665686A5 (it)
DE (1) DE3321718A1 (it)
FR (1) FR2547630B1 (it)
GB (1) GB2141486B (it)
IT (1) IT1176255B (it)
NL (1) NL8401343A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3786917D1 (de) * 1987-05-15 1993-09-09 Leybold Ag Ein- oder mehrstufige zweiwellenvakuumpumpe.
JPH01294985A (ja) * 1988-05-24 1989-11-28 Ebara Corp プラスチツクス製ルーツ式ブロワー用ローター
DE3911314A1 (de) * 1989-04-07 1990-10-11 Leybold Ag Vakuumpumpe
JPH10220371A (ja) * 1997-02-07 1998-08-18 Tochigi Fuji Ind Co Ltd 流体機械
JPH10266982A (ja) * 1997-03-21 1998-10-06 Tochigi Fuji Ind Co Ltd ルーツ式流体機械
US6264449B1 (en) * 2000-02-16 2001-07-24 Alexander Maute Plastic toothed wheel for a toothed wheel pump
US6325604B1 (en) * 2000-03-29 2001-12-04 Benjamin R. Du Plastic gear pump housing
DE20013338U1 (de) 2000-08-02 2000-12-28 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Verdichter
GB2418958A (en) * 2004-10-06 2006-04-12 Boc Group Plc Vacuum pump with enhanced exhaust heat transfer to stator
DE102010012759B4 (de) * 2010-03-25 2018-06-21 Pfeiffer Vacuum Gmbh Rotor für eine Vakuumpumpe
WO2012167248A2 (en) * 2011-06-02 2012-12-06 Eaton Corporation Simplified roots-type blower
US20140294645A1 (en) * 2013-03-29 2014-10-02 Dresser Inc. Rotary element and rotary displacement device comprised thereof
CN108678950B (zh) * 2018-07-23 2019-08-30 长沙理工大学 一种罗茨鼓风机叶轮

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1645967A (en) * 1924-08-29 1927-10-18 Thomas S Patterson Rotary pump
US1902347A (en) * 1931-01-31 1933-03-21 Vogt Instant Freezers Inc Rotary gear pump
GB525761A (en) * 1939-02-28 1940-09-04 Milo Ab Improvements in or relating to rotary compressors
GB560591A (en) * 1942-03-02 1944-04-11 Pump Engineering Service Corp Improvements in or relating to methods of manufacturing rotors for dry air pumps
DE972862C (de) * 1953-10-27 1959-10-15 Svenska Rotor Maskiner Ab Drehkolbenmaschine zur Kompression oder Expansion eines Gases
GB762553A (en) * 1953-10-27 1956-11-28 Svenska Rotor Maskiner Ab Improvements in or relating to rotary engines, pumps or the like
US2966860A (en) * 1957-04-03 1961-01-03 Lobee Pump & Machinery Co Pump for corrosive fluids
FR1514820A (fr) * 1966-03-31 1968-02-23 Riva Calzoni Spa Pompe à engrenages à denture intérieure ou similaires, particulièrement pour l'alimentation de servo-directions sur véhicules automobiles
DE2002518C3 (de) * 1970-01-21 1982-04-01 Fa. Hugo Vogelsang, 4571 Bunnen Güllepumpe
GB1528727A (en) * 1977-06-15 1978-10-18 Craft Lab Meshing gear liquid pumps
JPS5715108A (en) * 1980-06-23 1982-01-26 Boeing Co Combining method of rivet and parts

Also Published As

Publication number Publication date
CH665686A5 (de) 1988-05-31
DE3321718A1 (de) 1984-12-20
GB2141486B (en) 1987-08-05
IT1176255B (it) 1987-08-18
GB8415239D0 (en) 1984-07-18
NL8401343A (nl) 1985-01-16
FR2547630A1 (fr) 1984-12-21
JPS6011693A (ja) 1985-01-21
FR2547630B1 (fr) 1988-09-09
IT8421244A0 (it) 1984-06-04
GB2141486A (en) 1984-12-19

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940627