GB1298464A - Pumping apparatus - Google Patents

Pumping apparatus

Info

Publication number
GB1298464A
GB1298464A GB5819469A GB5819469A GB1298464A GB 1298464 A GB1298464 A GB 1298464A GB 5819469 A GB5819469 A GB 5819469A GB 5819469 A GB5819469 A GB 5819469A GB 1298464 A GB1298464 A GB 1298464A
Authority
GB
United Kingdom
Prior art keywords
molten glass
stage
inlet
rotor
cavity
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
GB5819469A
Inventor
Thomas H Jensen
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of GB1298464A publication Critical patent/GB1298464A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/083—Nozzles; Bushing nozzle plates
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225—Refining
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/001—Shear force pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/001—Preventing vapour lock
    • F04D9/002—Preventing vapour lock by means in the very pump
    • F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour

Abstract

1298464 Viscosity pumps PPG INDUSTRIES Inc 28 Nov 1969 [29 Nov 1968] 58194/69 Heading F1C [Also in Division F2] A two-stage liquid pump comprises relatively rotatable elements 10, 12, of which 10 may, as shown, be a rotor while 12 may be a stator. Molten glass to be pumped enters the first stage via inlets 20, Figs.1 and 3, and is dragged from each inlet 20 by the moving surfaces 22 of the rotor 10 so as to pass via a restricted clearance 24 to a cavity 26 which merges with an inlet cavity 32, Figs.1 and 5, of the second stage, excess flow passing via a more restricted clearance 28 to the next inlet 20. In the second stage, molten glass is dragged from each inlet cavity 32 via a restricted clearance 34 to an outlet cavity 36. The radial depth of the clearances 24 is large enough to allow bubbles to pass, while the radial depth of the clearances 34 is less to provide a higher pressure and to exclude the bubbles. Bubble-laden molten glass is removed via a passage 40 and a drive coupling 16. Bubble-free molten glass is discharged from the outlet cavities 36 via ducts 42 and a central bore 44. Wedgeshaped bearing chambers 50, 52 are supplied with molten glass from the cavities 26, 36, the molten glass acting as a lubricant and serving to maintain the alignment of the rotor and stator.
GB5819469A 1968-11-29 1969-11-28 Pumping apparatus Expired GB1298464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77994068A 1968-11-29 1968-11-29

Publications (1)

Publication Number Publication Date
GB1298464A true GB1298464A (en) 1972-12-06

Family

ID=25118067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5819469A Expired GB1298464A (en) 1968-11-29 1969-11-28 Pumping apparatus

Country Status (4)

Country Link
CA (1) CA951577A (en)
FR (1) FR2203942B1 (en)
GB (1) GB1298464A (en)
NL (1) NL6917963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114031289A (en) * 2021-09-28 2022-02-11 河海大学 Device for producing high-performance and nano-grade glass fibers and working method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114031289A (en) * 2021-09-28 2022-02-11 河海大学 Device for producing high-performance and nano-grade glass fibers and working method

Also Published As

Publication number Publication date
FR2203942A1 (en) 1974-05-17
FR2203942B1 (en) 1979-10-05
CA951577A (en) 1974-07-23
NL6917963A (en) 1970-06-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee