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EP0322908A3 - Fluorocarbon pumping system - Google Patents

Fluorocarbon pumping systemDownload PDF

Info

Publication number
EP0322908A3
EP0322908A3EP88121836AEP88121836AEP0322908A3EP 0322908 A3EP0322908 A3EP 0322908A3EP 88121836 AEP88121836 AEP 88121836AEP 88121836 AEP88121836 AEP 88121836AEP 0322908 A3EP0322908 A3EP 0322908A3
Authority
EP
European Patent Office
Prior art keywords
pump
liquid
fluorocarbons
container
gears
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Withdrawn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
EP88121836A
Other languages
German (de)
French (fr)
Other versions
EP0322908A2 (en
Inventor
James C. Lawless
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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Publication of EP0322908A2publicationCriticalpatent/EP0322908A2/en
Publication of EP0322908A3publicationCriticalpatent/EP0322908A3/en
Withdrawnlegal-statusCriticalCurrent

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Abstract

A system and method for pumping liquid fluorocarbons and the like from a pressurized supply container (24) to another container (26). The system compensates for the inherent vapor pressure drop occuring within any pressurized container of fluorocarbons as the fluorocarbons are pumped out. A phase conversion apparatus is provided to recirculate a portion (32) of the liquid being pumped from the downstream side of the pump (22), through a phase conversion chamber (12) into the supply tank (24) in a vapor phase. This prevents a vapor pressure drop in the supply tank and avoids the flashing of the liquid into a gas at the discharge connection of the supply container. The invention also comprises an improved fluorocarbon gear pump (22) and pressure regulation means (82). The gear pump utilizes offset gear axes and porous gears to form a liquid film over the gears to prevent deleterious contact in the pump and extend useful pump life.
EP88121836A1987-12-301988-12-28Fluorocarbon pumping systemWithdrawnEP0322908A3 (en)

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
US13939087A1987-12-301987-12-30
US1393901993-10-19

Publications (2)

Publication NumberPublication Date
EP0322908A2 EP0322908A2 (en)1989-07-05
EP0322908A3true EP0322908A3 (en)1990-05-09

Family

ID=22486410

Family Applications (1)

Application NumberTitlePriority DateFiling Date
EP88121836AWithdrawnEP0322908A3 (en)1987-12-301988-12-28Fluorocarbon pumping system

Country Status (1)

CountryLink
EP (1)EP0322908A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE19916563A1 (en)*1999-04-132000-10-19Linde Ag Process for decanting low-boiling liquids
WO2005047762A1 (en)*2003-11-172005-05-26Dinh Phuong PhanMethod and system for evaporating liquefied gases

Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE664322C (en)*1936-06-191938-08-25Julius Pintsch Kom Ges Device for transferring liquefied flammable gases
GB521792A (en)*1938-09-281940-05-31Eric GeertzImproved apparatus for handling liquid carbon dioxide
DE695073C (en)*1939-03-221940-08-15Julius Pintsch Kom Ges Process for filling flammable liquefied gases
US3272238A (en)*1963-10-241966-09-13Chemetron CorpMethod and apparatus for filling vessels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE664322C (en)*1936-06-191938-08-25Julius Pintsch Kom Ges Device for transferring liquefied flammable gases
GB521792A (en)*1938-09-281940-05-31Eric GeertzImproved apparatus for handling liquid carbon dioxide
DE695073C (en)*1939-03-221940-08-15Julius Pintsch Kom Ges Process for filling flammable liquefied gases
US3272238A (en)*1963-10-241966-09-13Chemetron CorpMethod and apparatus for filling vessels

Also Published As

Publication numberPublication date
EP0322908A2 (en)1989-07-05

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