FR981576A - Pompe combinée à liquide et à gaz - Google Patents

Pompe combinée à liquide et à gaz

Info

Publication number
FR981576A
FR981576A FR981576DA FR981576A FR 981576 A FR981576 A FR 981576A FR 981576D A FR981576D A FR 981576DA FR 981576 A FR981576 A FR 981576A
Authority
FR
France
Prior art keywords
gas pump
combined liquid
combined
liquid
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.)
Expired
Application number
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR981576A publication Critical patent/FR981576A/fr
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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR981576D 1947-11-25 1948-11-23 Pompe combinée à liquide et à gaz Expired FR981576A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US981576XA 1947-11-25 1947-11-25

Publications (1)

Publication Number Publication Date
FR981576A true FR981576A (fr) 1951-05-28

Family

ID=22267580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981576D Expired FR981576A (fr) 1947-11-25 1948-11-23 Pompe combinée à liquide et à gaz

Country Status (1)

Country Link
FR (1) FR981576A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585911A1 (fr) * 1992-09-03 1994-03-09 Matsushita Electric Industrial Co., Ltd. Pompe primaire sèche à deux étages
US6632145B2 (en) * 2000-02-14 2003-10-14 Arthur Vanmoor Fluid displacement pump with backpressure stop

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585911A1 (fr) * 1992-09-03 1994-03-09 Matsushita Electric Industrial Co., Ltd. Pompe primaire sèche à deux étages
US5564907A (en) * 1992-09-03 1996-10-15 Matsushita Electric Industrial Co., Ltd. Evacuating apparatus
US5709537A (en) * 1992-09-03 1998-01-20 Matsushita Electric Industrial Co., Ltd. Evacuating apparatus
US5951266A (en) * 1992-09-03 1999-09-14 Matsushita Electric Industrial Co., Ltd. Evacuating apparatus having interengaging rotors with threads having a decreasing pitch at the exhaust side
US6632145B2 (en) * 2000-02-14 2003-10-14 Arthur Vanmoor Fluid displacement pump with backpressure stop

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