GB1227444A - - Google Patents

Info

Publication number
GB1227444A
GB1227444A GB1227444DA GB1227444A GB 1227444 A GB1227444 A GB 1227444A GB 1227444D A GB1227444D A GB 1227444DA GB 1227444 A GB1227444 A GB 1227444A
Authority
GB
United Kingdom
Prior art keywords
section
degrees
expansion tube
aspirator
effective
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
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 GB1227444A publication Critical patent/GB1227444A/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
    • F04F5/465—Arrangements of nozzles with supersonic flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1,227,444. Jet pumps. CONDENSEURS DEIAS. May 17, 1968 [May 30, 1967], No.23482/68. Heading F1E. An aspirator, e.g. with steam as the inducing fluid for de-gassing molten metals in a vessel connected to the aspirator, comprises an expansion tube 8 in an aspiration chamber 3, and a convergent divergent diffuser 7 having a divergent section comprising a first portion 7b of axial length 0À2 to 0.3 times the minimum diameter D of the diffuser, a second portion 7c of axial length 8 to 10 times D and either cylindrical or of small divergence of the order of 1 degree, and a third portion 7d. In the embodiment shown, expansion tube 8 has a first section 8a having a divergence angle less than 10 degrees, and a second section 8b having a divergence angle between 20 degrees and 60 degrees. Section 8a is effective when starting aspiration, and section 8b is effective to prevent turbulence when the pressure in chamber 3 is very low. In Fig. 2 (not shown), section 8b of expansion tube 8 is omitted.
GB1227444D 1967-05-30 1968-05-17 Expired GB1227444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR108443A FR1535517A (en) 1967-05-30 1967-05-30 Advanced supersonic ejectors

Publications (1)

Publication Number Publication Date
GB1227444A true GB1227444A (en) 1971-04-07

Family

ID=8631948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227444D Expired GB1227444A (en) 1967-05-30 1968-05-17

Country Status (5)

Country Link
BE (1) BE715821A (en)
ES (1) ES354477A1 (en)
FR (1) FR1535517A (en)
GB (1) GB1227444A (en)
NL (1) NL6807672A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033920A1 (en) * 2002-10-11 2004-04-22 Pursuit Dynamics Plc Jet pump
WO2006010949A1 (en) * 2004-07-29 2006-02-02 Pursuit Dynamics Plc Jet pump
US8193395B2 (en) 2007-05-02 2012-06-05 Pursuit Dynamics Plc Biomass treatment process and system
US8419378B2 (en) 2004-07-29 2013-04-16 Pursuit Dynamics Plc Jet pump
GB2499166A (en) * 2010-11-05 2013-08-07 Transvac Systems Ltd Improved ejector and method
US8789769B2 (en) 2006-09-15 2014-07-29 Tyco Fire & Security Gmbh Mist generating apparatus and method
US9004375B2 (en) 2004-02-26 2015-04-14 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
US9010663B2 (en) 2004-02-26 2015-04-21 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
CN110553404A (en) * 2018-06-01 2019-12-10 芜湖美的厨卫电器制造有限公司 Fan air inlet pressure stabilizer and gas water heater
US10507480B2 (en) 2004-02-26 2019-12-17 Tyco Fire Products Lp Method and apparatus for generating a mist

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534983A1 (en) * 1982-10-20 1984-04-27 Chacoux Claude Jet supersonic compressor
DE4425601A1 (en) * 1994-07-06 1996-01-18 Mannesmann Ag Process for operating a jet pump and a jet pump itself

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033920A1 (en) * 2002-10-11 2004-04-22 Pursuit Dynamics Plc Jet pump
US7111975B2 (en) * 2002-10-11 2006-09-26 Pursuit Dynamics Plc Apparatus and methods for moving a working fluid by contact with a transport fluid
US10507480B2 (en) 2004-02-26 2019-12-17 Tyco Fire Products Lp Method and apparatus for generating a mist
US9010663B2 (en) 2004-02-26 2015-04-21 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
US9004375B2 (en) 2004-02-26 2015-04-14 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
WO2006010949A1 (en) * 2004-07-29 2006-02-02 Pursuit Dynamics Plc Jet pump
US8419378B2 (en) 2004-07-29 2013-04-16 Pursuit Dynamics Plc Jet pump
US9239063B2 (en) 2004-07-29 2016-01-19 Pursuit Marine Drive Limited Jet pump
US8789769B2 (en) 2006-09-15 2014-07-29 Tyco Fire & Security Gmbh Mist generating apparatus and method
US9931648B2 (en) 2006-09-15 2018-04-03 Tyco Fire & Security Gmbh Mist generating apparatus and method
US8513004B2 (en) 2007-05-02 2013-08-20 Pursuit Dynamics Plc Biomass treatment process
US8193395B2 (en) 2007-05-02 2012-06-05 Pursuit Dynamics Plc Biomass treatment process and system
WO2012059773A3 (en) * 2010-11-05 2013-08-08 Transvac Systems Limited Ejector and method
GB2499166A (en) * 2010-11-05 2013-08-07 Transvac Systems Ltd Improved ejector and method
GB2499166B (en) * 2010-11-05 2017-09-06 Transvac Systems Ltd Improved ejector and method
CN110553404A (en) * 2018-06-01 2019-12-10 芜湖美的厨卫电器制造有限公司 Fan air inlet pressure stabilizer and gas water heater
CN110553404B (en) * 2018-06-01 2024-02-23 芜湖美的厨卫电器制造有限公司 Air inlet pressure stabilizing device of fan and gas water heater

Also Published As

Publication number Publication date
BE715821A (en) 1968-10-16
FR1535517A (en) 1968-08-09
ES354477A1 (en) 1969-11-01
NL6807672A (en) 1968-12-02

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed