FR2044482A5 - Automatic pump utilising liquid piston - Google Patents

Automatic pump utilising liquid piston

Info

Publication number
FR2044482A5
FR2044482A5 FR6916708A FR6916708A FR2044482A5 FR 2044482 A5 FR2044482 A5 FR 2044482A5 FR 6916708 A FR6916708 A FR 6916708A FR 6916708 A FR6916708 A FR 6916708A FR 2044482 A5 FR2044482 A5 FR 2044482A5
Authority
FR
France
Prior art keywords
liquid piston
valve
automatic pump
vacuum
level
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
FR6916708A
Other languages
French (fr)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR6916708A priority Critical patent/FR2044482A5/en
Application granted granted Critical
Publication of FR2044482A5 publication Critical patent/FR2044482A5/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Automatic pump with liquid piston comprises a compression cylinder provided with a non-return clappet valve linked to a vacuum and a second similar valve linked to a higher pressure source. A cylinder provided with a tube at its lower end, which tube passes to the bottom of a vessel which is partly filled with mercury. A tubular side-arm if this cylinder passes to a three-way valve via a stopcock. The two way valve may open to a vacuum or to a pressure above atmos. This valve is operated automatically by an electronic circuit. according to the level of Hg in the container. The Hg level is monitored by two electrodes one in lower part and one in upper part of Hg.
FR6916708A 1969-05-22 1969-05-22 Automatic pump utilising liquid piston Expired FR2044482A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6916708A FR2044482A5 (en) 1969-05-22 1969-05-22 Automatic pump utilising liquid piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6916708A FR2044482A5 (en) 1969-05-22 1969-05-22 Automatic pump utilising liquid piston

Publications (1)

Publication Number Publication Date
FR2044482A5 true FR2044482A5 (en) 1971-02-19

Family

ID=9034448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6916708A Expired FR2044482A5 (en) 1969-05-22 1969-05-22 Automatic pump utilising liquid piston

Country Status (1)

Country Link
FR (1) FR2044482A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725513A (en) * 2009-06-25 2010-06-09 单欣 Soft piston type submerged pump
CN109253994A (en) * 2018-10-31 2019-01-22 中国石油天然气股份有限公司 Oil and gas source mercury isotope detection method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725513A (en) * 2009-06-25 2010-06-09 单欣 Soft piston type submerged pump
CN109253994A (en) * 2018-10-31 2019-01-22 中国石油天然气股份有限公司 Oil and gas source mercury isotope detection method and device
CN109253994B (en) * 2018-10-31 2021-05-28 中国石油天然气股份有限公司 Oil and gas source mercury isotope detection method and device
US11119085B2 (en) 2018-10-31 2021-09-14 Petrochina Company Limited Methods and devices for detecting mercury isotopes in oil-gas sources

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Legal Events

Date Code Title Description
ST Notification of lapse