DD117908A5 - - Google Patents

Info

Publication number
DD117908A5
DD117908A5 DD185842A DD18584275A DD117908A5 DD 117908 A5 DD117908 A5 DD 117908A5 DD 185842 A DD185842 A DD 185842A DD 18584275 A DD18584275 A DD 18584275A DD 117908 A5 DD117908 A5 DD 117908A5
Authority
DD
German Democratic Republic
Application number
DD185842A
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 filed Critical
Publication of DD117908A5 publication Critical patent/DD117908A5/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
DD185842A 1974-06-24 1975-05-05 DD117908A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2430314A DE2430314C3 (de) 1974-06-24 1974-06-24 Flüssigkeitsring-Vakuumpumpe mit vorgeschaltetem Verdichter

Publications (1)

Publication Number Publication Date
DD117908A5 true DD117908A5 (xx) 1976-02-05

Family

ID=5918845

Family Applications (1)

Application Number Title Priority Date Filing Date
DD185842A DD117908A5 (xx) 1974-06-24 1975-05-05

Country Status (14)

Country Link
US (1) US4225288A (xx)
JP (2) JPS5118309A (xx)
AT (1) AT334504B (xx)
BR (1) BR7503933A (xx)
CH (1) CH586852A5 (xx)
CS (1) CS211374B2 (xx)
DD (1) DD117908A5 (xx)
DE (1) DE2430314C3 (xx)
ES (1) ES438798A1 (xx)
FR (1) FR2276487A1 (xx)
GB (1) GB1508318A (xx)
IT (1) IT1038815B (xx)
SE (1) SE419115B (xx)
ZA (1) ZA754040B (xx)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412161A1 (fr) * 1977-12-19 1979-07-13 Rca Corp Procede de traitement a haute tension des tubes a rayons cathodiques
JPS5652839A (en) * 1979-10-05 1981-05-12 Hitachi Ltd Aging method for picture tube
JPS57130344A (en) * 1981-02-04 1982-08-12 Hitachi Ltd Production of cathode ray tube
US5228289A (en) * 1983-06-29 1993-07-20 Peter Norton Plural hydraulic pump system with unloading valve
US4583301A (en) * 1984-01-26 1986-04-22 U-Op Management & Consultants Ltd. Variable volume vacuum drying chamber
DE3420144A1 (de) * 1984-05-30 1985-12-05 Loewe Pumpenfabrik GmbH, 2120 Lüneburg Regelungs- und steuerungssystem, insbes. fuer wassering-vakuumpumpen
JPH0631627B2 (ja) * 1984-07-25 1994-04-27 株式会社日立製作所 回転容積形真空ポンプ装置
US4699570A (en) * 1986-03-07 1987-10-13 Itt Industries, Inc Vacuum pump system
JPS62243982A (ja) * 1986-04-14 1987-10-24 Hitachi Ltd ２段型真空ポンプ装置およびその運転方法
FR2621141B1 (fr) * 1987-09-25 1989-12-01 Cit Alcatel Procede de demarrage de pompes a vide couplees en serie, et dispositif permettant la mise en oeuvre de ce procede
US4850806A (en) * 1988-05-24 1989-07-25 The Boc Group, Inc. Controlled by-pass for a booster pump
EP0420899A1 (de) * 1988-06-24 1991-04-10 Siemens Aktiengesellschaft Mehrstufiges vakuumpumpenaggregat
JPH02102385A (ja) * 1988-10-08 1990-04-13 Toyo Eng Corp 排気装置
FR2640697B1 (fr) * 1988-12-16 1993-01-08 Cit Alcatel Ensemble de pompage pour l'obtention de vides eleves
FR2652390B1 (fr) * 1989-09-27 1991-11-29 Cit Alcatel Groupe de pompage a vide.
DE4104989A1 (de) * 1990-05-18 1991-11-21 Mueller Semtec Ohg Verfahren und vorrichtung zum evakuieren und entfeuchten eines raumes
DE59102369D1 (de) * 1990-05-18 1994-09-01 Mueller Semtec Ohg Verfahren und vorrichtung zum entfeuchten von wäsche o.dgl.
DE19500823A1 (de) * 1995-01-13 1996-07-18 Sgi Prozess Technik Gmbh Vakuum-Pumpstand
EP0730093B1 (en) 1995-02-28 2002-09-11 Anest Iwata Corporation Control of a two-stage vacuum pump
DE10046902B4 (de) * 2000-09-21 2006-04-27 Nash_Elmo Industries Gmbh Pumpenanlage und Verfahren zum Pumpen eines Gases
DE10108631B4 (de) * 2001-02-22 2005-06-30 Nash-Elmo Industries Gmbh Vakuumpumpenanlage und Verfahren zur Erzeugung eines Endvakuums
DE10134138A1 (de) * 2001-07-13 2003-02-06 Oranienburger Pumpen Verdichte Fluidmaschine mit zumindest zwei zusammengeschalteten Maschinen, insbesondere Verdichter, Gebläse, Pumpen u. dgl.
KR100451651B1 (ko) * 2001-12-13 2004-10-08 엘지전자 주식회사 원심형 압축기의 역회전 방지구조
DE10319633A1 (de) * 2003-05-02 2004-11-18 Inficon Gmbh Lecksuchgerät
JP4633370B2 (ja) * 2004-02-17 2011-02-16 財団法人国際科学振興財団 真空装置
EP2714167A4 (en) * 2011-05-24 2015-06-24 Invacare Corp OXYGEN COMPRESSOR WITH OVERPRESSURE FLOOR
JP6138144B2 (ja) * 2011-12-14 2017-05-31 ステアリング・インダストリー・コンサルト・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＳｔｅｒｌｉｎｇ Ｉｎｄｕｓｔｒｙ Ｃｏｎｓｕｌｔ ＧｍｂＨ チャンバを空にして該チャンバから取り出されたガスを浄化するための装置及び方法
WO2013116820A1 (en) 2012-02-03 2013-08-08 Invacare Corporation Pumping device
DE102013223556A1 (de) * 2013-11-19 2015-05-21 Oerlikon Leybold Vacuum Gmbh Vakuumpumpen-System sowie Verfahren zum Betreiben eines Vakuumpumpen-Systems
WO2016176006A1 (en) 2015-04-30 2016-11-03 Atlas Copco Comptec, Llc A gas handling system and method for efficiently managing changes in gaseous conditions
EP3880970B1 (en) * 2018-11-15 2023-02-15 Flowserve Management Company Apparatus and method for evacuating very large volumes
US11492020B2 (en) 2020-05-05 2022-11-08 Flowserve Management Company Method of intelligently managing pressure within an evacuated transportation system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1792741A (en) * 1929-10-14 1931-02-17 Hayton Pump And Blower Company Two-stage hydrovacuum pump
US2397443A (en) * 1944-02-03 1946-03-26 Socony Vacuum Oil Co Inc Pump station control system
US2492075A (en) * 1945-10-30 1949-12-20 Kinney Mfg Company Vacuum pump
DE968232C (de) * 1952-06-17 1958-01-30 Siemens Ag Fluessigkeitsring-Vakuumpumpe mit vorgeschaltetem Strahlsauger
US3221659A (en) * 1960-04-20 1965-12-07 Nash Engineering Co Liquid ring and centrifugal series pumps for varying density fluids
US3072058A (en) * 1961-08-18 1963-01-08 Socony Mobil Oil Co Inc Pipe line control system
US3315607A (en) * 1965-06-04 1967-04-25 Trw Inc Multi-stage drag pump
US3359908A (en) * 1966-01-24 1967-12-26 Gen Electric Turbine pump
FR1600217A (xx) * 1968-03-15 1970-07-20
US3558236A (en) * 1968-09-10 1971-01-26 Delavan Manufacturing Co Self-purging regenerative turbine pump
DE2138383A1 (de) * 1971-07-31 1973-02-08 Siemens Ag Pumpenaggregat zur mehrstufigen verdichtung von gasen
US3922110A (en) * 1974-01-28 1975-11-25 Henry Huse Multi-stage vacuum pump
DE2405890A1 (de) * 1974-02-07 1975-08-14 Siemens Ag Seitenkanal-ringverdichter

Also Published As

Publication number Publication date
DE2430314B2 (de) 1978-03-02
JPS5118309A (en) 1976-02-13
IT1038815B (it) 1979-11-30
ZA754040B (en) 1976-05-26
US4225288A (en) 1980-09-30
BR7503933A (pt) 1976-07-06
SE419115B (sv) 1981-07-13
CS211374B2 (en) 1982-02-26
SE7506807L (sv) 1975-12-29
ATA298075A (de) 1976-05-15
AT334504B (de) 1976-01-25
AU8240175A (en) 1977-01-06
CH586852A5 (xx) 1977-04-15
JPS58130098U (ja) 1983-09-02
ES438798A1 (es) 1977-03-16
DE2430314A1 (de) 1976-01-08
FR2276487A1 (fr) 1976-01-23
DE2430314C3 (de) 1982-11-25
GB1508318A (en) 1978-04-19
FR2276487B1 (xx) 1980-12-26

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