FR2338400A1 - Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes - Google Patents

Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes

Info

Publication number
FR2338400A1
FR2338400A1 FR7600688A FR7600688A FR2338400A1 FR 2338400 A1 FR2338400 A1 FR 2338400A1 FR 7600688 A FR7600688 A FR 7600688A FR 7600688 A FR7600688 A FR 7600688A FR 2338400 A1 FR2338400 A1 FR 2338400A1
Authority
FR
France
Prior art keywords
convergent
tube
pressure reducing
reducing device
secondary tube
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7600688A
Other languages
French (fr)
Other versions
FR2338400B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
APPLIC VENTILATION
Original Assignee
APPLIC VENTILATION
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 APPLIC VENTILATION filed Critical APPLIC VENTILATION
Priority to FR7600688A priority Critical patent/FR2338400A1/en
Publication of FR2338400A1 publication Critical patent/FR2338400A1/en
Application granted granted Critical
Publication of FR2338400B1 publication Critical patent/FR2338400B1/fr
Granted legal-status Critical Current

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
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • 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
    • 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
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles

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

The device is used to obtain pressures lower than atmospheric pressure suitable for pneumatic, fluidic etc. circuits. It consists of a primary circuit to which is connected a secondary circuit, and uses the Bernovilli principle. The primary circuit has a feed tube (1) with a convergent port (4) discharging into an annular chamber (7). A secondary circuit has a small diameter tube (2) also discharging into the chamber. The outlet from the chamber is a divergent end (5) of a discharge tube. In an alternative design, the secondary tube is coaxial with the primary tube. Several units may be used in series to approach absolute vacuum.
FR7600688A 1976-01-13 1976-01-13 Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes Granted FR2338400A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7600688A FR2338400A1 (en) 1976-01-13 1976-01-13 Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7600688A FR2338400A1 (en) 1976-01-13 1976-01-13 Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes

Publications (2)

Publication Number Publication Date
FR2338400A1 true FR2338400A1 (en) 1977-08-12
FR2338400B1 FR2338400B1 (en) 1980-05-09

Family

ID=9167844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7600688A Granted FR2338400A1 (en) 1976-01-13 1976-01-13 Bernoulli principle pressure reducing device - has smaller secondary tube entering chamber between convergent and divergent tubes

Country Status (1)

Country Link
FR (1) FR2338400A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020112A1 (en) * 1979-05-25 1980-12-10 Alfa-Laval Ab Milking plant
FR2477646A1 (en) * 1980-03-06 1981-09-11 Hispano Suiza Sa COMPRESSOR WITH RECYCLING BY TROMPE FOR ISOTOPIC SEPARATION BY GAS DIFFUSION
NL1041046A (en) * 2014-11-13 2016-07-28 Bort De Graaf Koel- En Klimaattechniek B V Continuously variable ejector.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020112A1 (en) * 1979-05-25 1980-12-10 Alfa-Laval Ab Milking plant
FR2477646A1 (en) * 1980-03-06 1981-09-11 Hispano Suiza Sa COMPRESSOR WITH RECYCLING BY TROMPE FOR ISOTOPIC SEPARATION BY GAS DIFFUSION
US4431377A (en) * 1980-03-06 1984-02-14 Hispano-Suiza Compressor with pump recycling for isotopic separation through gaseous scattering
EP0036343B1 (en) * 1980-03-06 1985-04-24 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Recycling compressor with aspirator for isotopic separation by gas diffusion
NL1041046A (en) * 2014-11-13 2016-07-28 Bort De Graaf Koel- En Klimaattechniek B V Continuously variable ejector.

Also Published As

Publication number Publication date
FR2338400B1 (en) 1980-05-09

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse