FR2420671A1 - Two stage vacuum diaphragm pump - has single piston with flexible diaphragm attached to each end - Google Patents

Two stage vacuum diaphragm pump - has single piston with flexible diaphragm attached to each end

Info

Publication number
FR2420671A1
FR2420671A1 FR7816349A FR7816349A FR2420671A1 FR 2420671 A1 FR2420671 A1 FR 2420671A1 FR 7816349 A FR7816349 A FR 7816349A FR 7816349 A FR7816349 A FR 7816349A FR 2420671 A1 FR2420671 A1 FR 2420671A1
Authority
FR
France
Prior art keywords
stage vacuum
piston
attached
single piston
diaphragm pump
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.)
Granted
Application number
FR7816349A
Other languages
French (fr)
Other versions
FR2420671B1 (en
Inventor
Paulino Martinez Landa
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 Individual filed Critical Individual
Publication of FR2420671A1 publication Critical patent/FR2420671A1/en
Application granted granted Critical
Publication of FR2420671B1 publication Critical patent/FR2420671B1/fr
Granted 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
    • 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
    • F04B25/00—Multi-stage pumps
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A two stage vacuum pump has a cylindrical body (1) with a bearing housing (2) for a crankshaft (3). The crankshaft drives a piston (8) by means of a connecting rod (21) fitted inside the piston body. Flexible diaphragms (9) are attached to each end of the piston with their outer edges clamped by the cylinder heads (7, 8). The air or other gas from the vessel to be exhausted, is drawn in through the inlet (15) of the upper diaphragm chamber (5) and then delivered through the pipe (14) to the lower chamber (6) and finally expelled through the outlet (16).
FR7816349A 1978-03-21 1978-05-25 Two stage vacuum diaphragm pump - has single piston with flexible diaphragm attached to each end Granted FR2420671A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1978234835U ES234835Y (en) 1978-03-21 1978-03-21 DOUBLE MEMBRANE DEPRESSOR.

Publications (2)

Publication Number Publication Date
FR2420671A1 true FR2420671A1 (en) 1979-10-19
FR2420671B1 FR2420671B1 (en) 1980-11-07

Family

ID=8395612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816349A Granted FR2420671A1 (en) 1978-03-21 1978-05-25 Two stage vacuum diaphragm pump - has single piston with flexible diaphragm attached to each end

Country Status (3)

Country Link
AR (1) AR215997A1 (en)
ES (1) ES234835Y (en)
FR (1) FR2420671A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092264A2 (en) * 1982-04-21 1983-10-26 Shell Internationale Researchmaatschappij B.V. Two-stage volumetric pump and fuel injection process for liquefied petroleum gases
US4931000A (en) * 1989-03-02 1990-06-05 Gilian Instrument Corp. Double acting diaphragm air pump
US20210355929A1 (en) * 2020-05-18 2021-11-18 Graco Minnesota Inc. Pump having multi-stage gas compression
CN114215724A (en) * 2021-12-28 2022-03-22 苏州强硕科技装备制造有限公司 Two-stage compression diaphragm compressor structure

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191003158A (en) * 1910-02-09 1911-02-09 Charles Edward Percy Gabriel Improvements in or relating to Air or like Compressors.
US1456089A (en) * 1921-04-07 1923-05-22 Baker Hansen Mfg Company Air compressor
FR555115A (en) * 1922-08-14 1923-06-25 Expl Des Procedes Tailleferre Further training in compressors
US1747457A (en) * 1927-02-07 1930-02-18 Rhoda S Dunlap Compressor
FR762951A (en) * 1933-10-26 1934-04-21 Monotype Sa Improvements to air pumps or other fluids
FR1021607A (en) * 1950-07-07 1953-02-20 Submersible motor-pump unit with auxiliary fluid
FR1186535A (en) * 1957-11-18 1959-08-26 Advanced diaphragm pump
FR1201719A (en) * 1958-07-11 1960-01-05 Pump for pumping abrasive or corrosive liquids and more particularly suitable for spraying products used in crop treatment
FR75245E (en) * 1959-03-05 1961-05-12 Pump for pumping abrasive or corrosive liquids and more particularly suitable for spraying products used in crop treatment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191003158A (en) * 1910-02-09 1911-02-09 Charles Edward Percy Gabriel Improvements in or relating to Air or like Compressors.
US1456089A (en) * 1921-04-07 1923-05-22 Baker Hansen Mfg Company Air compressor
FR555115A (en) * 1922-08-14 1923-06-25 Expl Des Procedes Tailleferre Further training in compressors
US1747457A (en) * 1927-02-07 1930-02-18 Rhoda S Dunlap Compressor
FR762951A (en) * 1933-10-26 1934-04-21 Monotype Sa Improvements to air pumps or other fluids
FR1021607A (en) * 1950-07-07 1953-02-20 Submersible motor-pump unit with auxiliary fluid
FR1186535A (en) * 1957-11-18 1959-08-26 Advanced diaphragm pump
FR1201719A (en) * 1958-07-11 1960-01-05 Pump for pumping abrasive or corrosive liquids and more particularly suitable for spraying products used in crop treatment
FR75245E (en) * 1959-03-05 1961-05-12 Pump for pumping abrasive or corrosive liquids and more particularly suitable for spraying products used in crop treatment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092264A2 (en) * 1982-04-21 1983-10-26 Shell Internationale Researchmaatschappij B.V. Two-stage volumetric pump and fuel injection process for liquefied petroleum gases
EP0092264A3 (en) * 1982-04-21 1985-11-06 Shell Internationale Research Maatschappij B.V. Two-stage volumetric pump and fuel injection process for liquefied petroleum gases
US4565501A (en) * 1982-04-21 1986-01-21 Shell Oil Company Two-stage volumetric pump for liquefied petroleum gases in liquid phase
US4931000A (en) * 1989-03-02 1990-06-05 Gilian Instrument Corp. Double acting diaphragm air pump
US20210355929A1 (en) * 2020-05-18 2021-11-18 Graco Minnesota Inc. Pump having multi-stage gas compression
US11873802B2 (en) 2020-05-18 2024-01-16 Graco Minnesota Inc. Pump having multi-stage gas compression
CN114215724A (en) * 2021-12-28 2022-03-22 苏州强硕科技装备制造有限公司 Two-stage compression diaphragm compressor structure

Also Published As

Publication number Publication date
FR2420671B1 (en) 1980-11-07
AR215997A1 (en) 1979-11-15
ES234835U (en) 1978-07-01
ES234835Y (en) 1978-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse