GB929121A - A device for creating one or more reduced pressure zones by means of fluid flow - Google Patents

A device for creating one or more reduced pressure zones by means of fluid flow

Info

Publication number
GB929121A
GB929121A GB29522/59A GB2952259A GB929121A GB 929121 A GB929121 A GB 929121A GB 29522/59 A GB29522/59 A GB 29522/59A GB 2952259 A GB2952259 A GB 2952259A GB 929121 A GB929121 A GB 929121A
Authority
GB
United Kingdom
Prior art keywords
jet
depression
slot
flow
zones
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.)
Expired
Application number
GB29522/59A
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.)
Sebac Nouvelle SA
Original Assignee
Sebac Nouvelle SA
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 Sebac Nouvelle SA filed Critical Sebac Nouvelle SA
Publication of GB929121A publication Critical patent/GB929121A/en
Expired 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
    • F04F5/46—Arrangements of nozzles
    • F04F5/464—Arrangements of nozzles with inversion of the direction of flow
    • 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
    • F04F5/42—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow characterised by the input flow of inducing fluid medium being radial or tangential to output flow
    • 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)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

929,121. Injection. SEBAC NOUVELLE S.A. Aug. 28, 1959 [Sept. 8 1958], No. 29522/59. Class 71. [Also in Group XXXIII] A device for creating one or more zones of depression by the flow of a flat fluid jet comprises a slot 3, Fig. 2, through which the flat jet is discharged and a wall 1 perpendicular to the initial flow of the jet. A first body 6 is coupled by a support 7 to the wall 1 and the angle between the initial direction 9 of the jet and a straight line from the lip 10 of the slot which is tangential at 11 to the member 6 is so chosen in dependence of the fluid that the jet is deflected and forms a closed zone 8 of very high depression. Further bodies 15, 16 may be similarly positioned by suitable choice of the angles α1, α2, α3. For a jet of air α< 32‹, α1< 30‹. As shown in Fig. 3, the jet 3<SP>1</SP> is annular and the members 23, 24, 25 are positioned as above to provide zones of depression 29, 31: The jet induces a flow of ambient air 28 which increases the momentum of the jet. The ratio of the fluid pressure of the jet at the slot to the ambient air should not be greater than 30 and the distance h should be less than twelve times the slot thickness. In Fig. 4, the members 23, 24 are formed around a tube 22 which is the supply tube for the jet. As the jet is deflected it induces a flow of ambient air 28. The zones of depression may be connected to a liquid supply to introduce a spray into the jet or the device may be employed to produce a lift effect by adapting it to the wing of an aircraft.
GB29522/59A 1958-09-08 1959-08-28 A device for creating one or more reduced pressure zones by means of fluid flow Expired GB929121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR774029 1958-09-08

Publications (1)

Publication Number Publication Date
GB929121A true GB929121A (en) 1963-06-19

Family

ID=8707425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29522/59A Expired GB929121A (en) 1958-09-08 1959-08-28 A device for creating one or more reduced pressure zones by means of fluid flow

Country Status (2)

Country Link
DE (1) DE1403288B2 (en)
GB (1) GB929121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634050A (en) * 1986-01-03 1987-01-06 Shippee James H Fanless air aspiration snowmaking apparatus
GB2314818A (en) * 1996-06-24 1998-01-14 Short Brothers Plc Aircraft engine thrust reverser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634050A (en) * 1986-01-03 1987-01-06 Shippee James H Fanless air aspiration snowmaking apparatus
GB2314818A (en) * 1996-06-24 1998-01-14 Short Brothers Plc Aircraft engine thrust reverser
GB2314818B (en) * 1996-06-24 2000-04-12 Short Brothers Plc Aircraft propulsive power unit
US6151883A (en) * 1996-06-24 2000-11-28 Short Brothers Plc Aircraft propulsive power unit thrust reverser with separation delay means

Also Published As

Publication number Publication date
DE1403288A1 (en) 1970-10-15
DE1403288B2 (en) 1971-11-25

Similar Documents

Publication Publication Date Title
GB1143678A (en)
GB1097498A (en) Modified full cone nozzle
GB672441A (en) Spraying nozzle
ES8104923A1 (en) A self-regulating constant output nozzle for a supply line.
GB986026A (en) Spray producing nozzle
GB1350654A (en) Device for periodically supplying measured quantities of a pressure fluid to a picking nozzle
GB929121A (en) A device for creating one or more reduced pressure zones by means of fluid flow
GB1152163A (en) Spray Nozzle
GB907741A (en) Improvements relating to rockets
GB1333091A (en) Apparatus for spraying powder
GB786313A (en) Improvements in or relating to electrostatic precipitators
GB1236664A (en) A spray pistol for producing coatings from finely divided, liquid or solid substances
GB1303266A (en)
ES410445A1 (en) Liquid jet nozzle
GB826961A (en) Liquid fuel combustion apparatus
GB914598A (en) Aircraft control systems
GB816093A (en) Mixing apparatus
GB910679A (en) Improvements in or relating to propulsion nozzles
GB1349065A (en) Pressurizer mechanism for use on a glass ribbon machine
BEER et al. Velocity and static-pressure distributions in swirling air jets issuing from annular and divergent nozzles(Mean velocity and static pressure of swirling air jets issuing from annular and divergent nozzles into stagnant-air environment)
GB750665A (en) Improvements in or relating to liquid atomisers
GB880454A (en) Improvements in or relating to electromagnetic pumps
GB832849A (en) Improvements in or relating to vehicle ejection seats
GB1345896A (en) Liquid spraying
GB1358449A (en) Sensing nozzles