SE7905309L - EJECTOR - Google Patents

EJECTOR

Info

Publication number
SE7905309L
SE7905309L SE7905309A SE7905309A SE7905309L SE 7905309 L SE7905309 L SE 7905309L SE 7905309 A SE7905309 A SE 7905309A SE 7905309 A SE7905309 A SE 7905309A SE 7905309 L SE7905309 L SE 7905309L
Authority
SE
Sweden
Prior art keywords
nozzle
nozzles
diameter
inlet
ejector
Prior art date
Application number
SE7905309A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE427954B (en
Inventor
P Tell
Original Assignee
Piab 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 Piab Ab filed Critical Piab Ab
Priority to SE7905309A priority Critical patent/SE427954B/en
Priority to DE803049647T priority patent/DE3049647T1/en
Priority to GB8104652A priority patent/GB2066900B/en
Priority to AU60504/80A priority patent/AU549039B2/en
Priority to JP50133980A priority patent/JPS56500814A/ja
Priority to PCT/SE1980/000168 priority patent/WO1980002863A1/en
Publication of SE7905309L publication Critical patent/SE7905309L/en
Publication of SE427954B publication Critical patent/SE427954B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
    • F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Multi-ejector having at least one set of between two and four nozzles (7-10) arranged in series in order of size in the flow direction, the smallest nozzle (7) constituting the first nozzle. The novel feature of the present multi-ejector resides in the fact that by using the below given connections between the inlet and outlet diameters of the nozzles as well as the distances between adjacent nozzles starting from the inlet diameter (a) of the first nozzle (7) there have been obtained negative pressures amounting to between 7 and 10% of actual air pressure when using a positive pressure of between 3.7 and 6.0 kilopounds per square centimeters. Nozzle Inlet Outlet Distances to Diameter Diameter succeeding nozzles First (7) a 1.5a 0a Second (8) 2.1-2.2a 2.3-2.4a 5a Third (9) 3.6-3.7a 4.0-4.1a 2.5a Fourth (10) 4.5-4.6a 5.6-5.7a
SE7905309A 1979-06-15 1979-06-15 EJECTOR SE427954B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE7905309A SE427954B (en) 1979-06-15 1979-06-15 EJECTOR
DE803049647T DE3049647T1 (en) 1979-06-15 1980-06-12 EJECTOR
GB8104652A GB2066900B (en) 1979-06-15 1980-06-12 Ejector
AU60504/80A AU549039B2 (en) 1979-06-15 1980-06-12 Ejector
JP50133980A JPS56500814A (en) 1979-06-15 1980-06-12
PCT/SE1980/000168 WO1980002863A1 (en) 1979-06-15 1980-06-12 Ejector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7905309A SE427954B (en) 1979-06-15 1979-06-15 EJECTOR

Publications (2)

Publication Number Publication Date
SE7905309L true SE7905309L (en) 1980-12-16
SE427954B SE427954B (en) 1983-05-24

Family

ID=20338304

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7905309A SE427954B (en) 1979-06-15 1979-06-15 EJECTOR

Country Status (6)

Country Link
JP (1) JPS56500814A (en)
AU (1) AU549039B2 (en)
DE (1) DE3049647T1 (en)
GB (1) GB2066900B (en)
SE (1) SE427954B (en)
WO (1) WO1980002863A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025525A1 (en) * 1980-07-05 1982-01-28 Jürgen 4477 Welver Volkmann EJECTOR DEVICE
DE3431240A1 (en) * 1984-08-24 1986-03-06 Michael 4150 Krefeld Laumen REFRIGERATION MACHINE OR HEAT PUMP AND JET PUMP HERE
SE466561B (en) * 1988-06-08 1992-03-02 Peter Tell MULTIEJEKTORANORDNING
GB9017791D0 (en) * 1990-08-14 1990-09-26 Portsmouth Tech Consult Vacuum gripper devices
IL100168A0 (en) * 1991-11-27 1992-08-18 Dan Greenberg High vacuum pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729794A (en) * 1929-10-01 Injector ptjmp
FR361049A (en) * 1905-11-27 1906-05-14 Westinghouse Electric Corp Advanced diffuser system for ejector
DE321704C (en) * 1916-06-10 1920-06-11 British Westinghouse Electric Jet apparatus for elastic equipment
DE389520C (en) * 1918-08-13 1924-02-11 Kurt Hoefer Dr Ing Jet machine
DE561872C (en) * 1929-08-22 1932-10-19 Schmidt Paul Conveying liquids at high pressure by means of liquid jet pumps
US2078614A (en) * 1935-02-05 1937-04-27 G & J Weir Ltd Multistage ejector
SE370765B (en) * 1973-12-05 1974-10-28 Piab Ab
DE3025525A1 (en) * 1980-07-05 1982-01-28 Jürgen 4477 Welver Volkmann EJECTOR DEVICE

Also Published As

Publication number Publication date
GB2066900A (en) 1981-07-15
DE3049647T1 (en) 1982-02-25
SE427954B (en) 1983-05-24
AU549039B2 (en) 1986-01-09
JPS56500814A (en) 1981-06-18
GB2066900B (en) 1983-04-20
DE3049647C2 (en) 1991-08-01
WO1980002863A1 (en) 1980-12-24
AU6050480A (en) 1981-01-05

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