IT1090189B - Perfezionamento nelle pompe a caspulismo - Google Patents

Perfezionamento nelle pompe a caspulismo

Info

Publication number
IT1090189B
IT1090189B IT51385/77A IT5138577A IT1090189B IT 1090189 B IT1090189 B IT 1090189B IT 51385/77 A IT51385/77 A IT 51385/77A IT 5138577 A IT5138577 A IT 5138577A IT 1090189 B IT1090189 B IT 1090189B
Authority
IT
Italy
Prior art keywords
caspulism
pumps
improvement
caspulism pumps
Prior art date
Application number
IT51385/77A
Other languages
English (en)
Original Assignee
Atlas Copco Ab
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 Atlas Copco Ab filed Critical Atlas Copco Ab
Application granted granted Critical
Publication of IT1090189B publication Critical patent/IT1090189B/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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)
  • Reciprocating Pumps (AREA)
IT51385/77A 1976-10-19 1977-10-12 Perfezionamento nelle pompe a caspulismo IT1090189B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7611579A SE414814B (sv) 1976-10-19 1976-10-19 Rotorpar for en blasmaskin

Publications (1)

Publication Number Publication Date
IT1090189B true IT1090189B (it) 1985-06-18

Family

ID=20329179

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51385/77A IT1090189B (it) 1976-10-19 1977-10-12 Perfezionamento nelle pompe a caspulismo

Country Status (9)

Country Link
US (1) US4227869A (it)
JP (1) JPS5354304A (it)
BE (1) BE859693A (it)
CA (1) CA1086277A (it)
DE (1) DE2746693A1 (it)
FR (1) FR2368622A1 (it)
GB (1) GB1547116A (it)
IT (1) IT1090189B (it)
SE (1) SE414814B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1155626B (it) * 1982-02-23 1987-01-28 Fiat Auto Spa Compressore volumetrico rotativo del tipo roots
GB2125109A (en) * 1982-08-10 1984-02-29 Paul William Nachtrieb Rotary positive-displacement fluid-machines
JPS59135391U (ja) * 1983-03-01 1984-09-10 アイシン精機株式会社 流体機器
JPS6075793A (ja) * 1983-09-30 1985-04-30 Aisin Seiki Co Ltd ル−ツ型ブロア
US4643654A (en) * 1985-09-12 1987-02-17 American Standard Inc. Screw rotor profile and method for generating
JP2761233B2 (ja) * 1989-02-17 1998-06-04 富士重工業株式会社 ルーツ型ブロワ
DE4138913C1 (it) * 1991-11-27 1993-06-09 John S. Barnes Gmbh, 8670 Hof, De
US5318415A (en) * 1992-10-02 1994-06-07 Gramprotex Holdings Inc. Grooved pump chamber walls for flushing fiber deposits
US7188621B2 (en) 2003-08-04 2007-03-13 Pulmonetic Systems, Inc. Portable ventilator system
US8118024B2 (en) 2003-08-04 2012-02-21 Carefusion 203, Inc. Mechanical ventilation system utilizing bias valve
US7527053B2 (en) 2003-08-04 2009-05-05 Cardinal Health 203, Inc. Method and apparatus for attenuating compressor noise
US8156937B2 (en) 2003-08-04 2012-04-17 Carefusion 203, Inc. Portable ventilator system
US20050112013A1 (en) * 2003-08-04 2005-05-26 Pulmonetic Systems, Inc. Method and apparatus for reducing noise in a roots-type blower
US7607437B2 (en) 2003-08-04 2009-10-27 Cardinal Health 203, Inc. Compressor control system and method for a portable ventilator
US7997885B2 (en) 2007-12-03 2011-08-16 Carefusion 303, Inc. Roots-type blower reduced acoustic signature method and apparatus
US8888711B2 (en) 2008-04-08 2014-11-18 Carefusion 203, Inc. Flow sensor
GB2468876B (en) * 2009-03-25 2011-06-29 Environmental Mfg Llp A rotary mechanism
DE102013110091B3 (de) * 2013-09-13 2015-02-12 Pfeiffer Vacuum Gmbh Wälzkolbenpumpe mit zwei Rotoren
CN108757448B (zh) * 2018-07-12 2023-08-08 中国石油大学(华东) 一种三叶分段圆弧型罗茨转子及其型线设计方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR741835A (it) * 1933-02-21
US325276A (en) * 1885-09-01 Rotary pump
DE499675C (de) * 1927-01-04 1930-06-14 Josef Kozousek Zahnradverdichter, -pumpe o. dgl. mit Evolventen- oder Zykloidenverzahnung
GB439908A (en) * 1934-09-28 1935-12-17 Brown David & Sons Ltd Improvements in rotors for pumps and blowers
DE861733C (de) * 1950-10-25 1953-01-05 Hartmann A G Maschf Drehkolben fuer Geblaese od. dgl.
US3089638A (en) * 1958-12-01 1963-05-14 Dresser Ind Impellers for fluid handling apparatus of the rotary positive displacement type
DE1703849B1 (de) * 1968-07-18 1971-07-29 Maag Zahnraeder & Maschinen Ag Verzahnung fuer Zahnradpumpe mit Hilfsgetriebe

Also Published As

Publication number Publication date
DE2746693C2 (it) 1988-07-28
FR2368622B1 (it) 1983-09-23
SE7611579L (sv) 1978-04-20
JPS5354304A (en) 1978-05-17
BE859693A (fr) 1978-02-01
SE414814B (sv) 1980-08-18
CA1086277A (en) 1980-09-23
US4227869A (en) 1980-10-14
FR2368622A1 (fr) 1978-05-19
DE2746693A1 (de) 1978-04-20
GB1547116A (en) 1979-06-06

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