EP0271258A3 - A device for ejecting granular or particulate material - Google Patents

A device for ejecting granular or particulate material Download PDF

Info

Publication number
EP0271258A3
EP0271258A3 EP87310432A EP87310432A EP0271258A3 EP 0271258 A3 EP0271258 A3 EP 0271258A3 EP 87310432 A EP87310432 A EP 87310432A EP 87310432 A EP87310432 A EP 87310432A EP 0271258 A3 EP0271258 A3 EP 0271258A3
Authority
EP
European Patent Office
Prior art keywords
air gap
air
particulate material
flow
supply
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.)
Withdrawn
Application number
EP87310432A
Other languages
German (de)
French (fr)
Other versions
EP0271258A2 (en
Inventor
Leonard James Bye
Steven Alan Small
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Westinghouse Brake and Signal Holdings Ltd
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 Westinghouse Brake and Signal Co Ltd, Westinghouse Brake and Signal Holdings Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Publication of EP0271258A2 publication Critical patent/EP0271258A2/en
Publication of EP0271258A3 publication Critical patent/EP0271258A3/en
Withdrawn legal-status Critical Current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
    • F04F5/461—Adjustable nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

A device (18) for ejecting granular or particulate material from supply means (20), comprises an elongate body (3/6/7) for through flow of the material, a nozzle (10) defining within the body (3/6/7) an air gap, and means (4/5/6) whereby air can be supplied to the air gap and as a result of the Venturi effect created thereby in the device flow of material through the device is enhanced or enabled. The device is provided with a bleed arrangement (22/23/21) for bleeding air to the material from the supply to the air gap before the material reaches the air gap. Bleeding air from the supply to the air gap to the material before it reaches the air gap can improve the flow of material through the device.
EP87310432A 1986-12-11 1987-11-26 A device for ejecting granular or particulate material Withdrawn EP0271258A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8629647 1986-12-11
GB08629647A GB2198479A (en) 1986-12-11 1986-12-11 Ejecting granular or particulate material

Publications (2)

Publication Number Publication Date
EP0271258A2 EP0271258A2 (en) 1988-06-15
EP0271258A3 true EP0271258A3 (en) 1988-10-05

Family

ID=10608857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87310432A Withdrawn EP0271258A3 (en) 1986-12-11 1987-11-26 A device for ejecting granular or particulate material

Country Status (2)

Country Link
EP (1) EP0271258A3 (en)
GB (1) GB2198479A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015504359A (en) 2011-11-16 2015-02-12 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Injector for particulate solids

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE444471C (en) * 1926-02-26 1927-05-21 Kohlenstaub Ges Mit Beschraenk Process for conveying coal dust
FR677735A (en) * 1929-07-02 1930-03-13 Pneumatic Conveyance & Extract Pneumatic solids handling equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE444471C (en) * 1926-02-26 1927-05-21 Kohlenstaub Ges Mit Beschraenk Process for conveying coal dust
FR677735A (en) * 1929-07-02 1930-03-13 Pneumatic Conveyance & Extract Pneumatic solids handling equipment

Also Published As

Publication number Publication date
GB8629647D0 (en) 1987-01-21
GB2198479A (en) 1988-06-15
EP0271258A2 (en) 1988-06-15

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Legal Events

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Owner name: WESTINGHOUSE BRAKE AND SIGNAL HOLDINGS LIMITED

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Effective date: 19890406

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Inventor name: BYE, LEONARD JAMES

Inventor name: SMALL, STEVEN ALAN