IT8026735A0 - MULTISTAGE ROTARY PISTON PUMP. - Google Patents

MULTISTAGE ROTARY PISTON PUMP.

Info

Publication number
IT8026735A0
IT8026735A0 IT8026735A IT2673580A IT8026735A0 IT 8026735 A0 IT8026735 A0 IT 8026735A0 IT 8026735 A IT8026735 A IT 8026735A IT 2673580 A IT2673580 A IT 2673580A IT 8026735 A0 IT8026735 A0 IT 8026735A0
Authority
IT
Italy
Prior art keywords
piston pump
rotary piston
multistage rotary
multistage
pump
Prior art date
Application number
IT8026735A
Other languages
Italian (it)
Other versions
IT1134772B (en
Inventor
Jurgen Steinmuller
Original Assignee
Pfeiffer Vakuumtechnik
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 Pfeiffer Vakuumtechnik filed Critical Pfeiffer Vakuumtechnik
Publication of IT8026735A0 publication Critical patent/IT8026735A0/en
Application granted granted Critical
Publication of IT1134772B publication Critical patent/IT1134772B/en

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
    • F04C18/20—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 dissimilar tooth forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)
  • Rotary Pumps (AREA)
IT26735/80A 1979-12-21 1980-12-18 MULTI-STAGE ROTARY PISTON PUMP IT1134772B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792951591 DE2951591A1 (en) 1979-12-21 1979-12-21 MULTI-STAGE ROLLING PISTON PUMP

Publications (2)

Publication Number Publication Date
IT8026735A0 true IT8026735A0 (en) 1980-12-18
IT1134772B IT1134772B (en) 1986-08-13

Family

ID=6089179

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26735/80A IT1134772B (en) 1979-12-21 1980-12-18 MULTI-STAGE ROTARY PISTON PUMP

Country Status (11)

Country Link
JP (1) JPS56132489A (en)
AR (1) AR223087A1 (en)
AU (1) AU543259B2 (en)
BR (1) BR8008319A (en)
CH (1) CH650562A5 (en)
DE (1) DE2951591A1 (en)
FR (1) FR2472094B1 (en)
GB (1) GB2065776B (en)
IT (1) IT1134772B (en)
NL (1) NL8002614A (en)
ZA (1) ZA807955B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232119A1 (en) * 1992-09-25 1994-03-31 Mes Und Regeltechnik Geraeteba Double shaft vacuum roots pump - has two rotors forming working and control pistons and housing having overflow valve in discharge aperture with excess pressure valves in side parts on pressure socket
GB2282853A (en) * 1993-10-13 1995-04-19 Abertech Ind Rotary positive displacement pump.
KR100966898B1 (en) * 2008-08-04 2010-06-30 황금택 A mute blower working with high air-presser
RU2621457C2 (en) * 2014-10-17 2017-06-06 Валерий Владимирович Мишнаевский Compressor
DE202017003212U1 (en) * 2017-06-17 2018-09-18 Leybold Gmbh Multi-stage Roots pump
CN108180143B (en) * 2018-01-25 2021-05-07 曹桂林 Tangent circle rotor pair, compressor and engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR951230A (en) * 1946-07-11 1949-10-19 Roots Connersville Blower Corp Improvements to rotary pumps
CH350116A (en) * 1955-07-19 1960-11-15 Liquid Controls Corp Rotary displacement machine for liquid
GB784554A (en) * 1955-08-30 1957-10-09 Clifford Edmund Brewer Improvements in or relating to rotary motors, compressors or the like
FR1290474A (en) * 1961-04-26 1962-04-13 Rotor Societa Meccanica Italia Mechanism for determining chambers with adjustable and cyclically variable volume
GB1031991A (en) * 1963-03-04 1966-06-08 Bryan Donkin Co Ltd Improvements in or relating to apparatus for compressing air or other gas

Also Published As

Publication number Publication date
FR2472094A1 (en) 1981-06-26
DE2951591A1 (en) 1981-07-02
IT1134772B (en) 1986-08-13
BR8008319A (en) 1981-07-07
ZA807955B (en) 1982-02-24
FR2472094B1 (en) 1987-07-10
CH650562A5 (en) 1985-07-31
JPS56132489A (en) 1981-10-16
AR223087A1 (en) 1981-07-15
GB2065776B (en) 1984-05-02
GB2065776A (en) 1981-07-01
AU543259B2 (en) 1985-04-18
AU6554980A (en) 1981-06-25
NL8002614A (en) 1981-07-16

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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: 19931222