FR951230A - Improvements to rotary pumps - Google Patents

Improvements to rotary pumps

Info

Publication number
FR951230A
FR951230A FR951230DA FR951230A FR 951230 A FR951230 A FR 951230A FR 951230D A FR951230D A FR 951230DA FR 951230 A FR951230 A FR 951230A
Authority
FR
France
Prior art keywords
rotary pumps
pumps
rotary
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
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.)
ROOTS CONNERSVILLE BLOWER CORP
Original Assignee
ROOTS CONNERSVILLE BLOWER CORP
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 ROOTS CONNERSVILLE BLOWER CORP filed Critical ROOTS CONNERSVILLE BLOWER CORP
Application granted granted Critical
Publication of FR951230A publication Critical patent/FR951230A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/123—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR951230D 1946-07-11 1947-07-03 Improvements to rotary pumps Expired FR951230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US951230XA 1946-07-11 1946-07-11

Publications (1)

Publication Number Publication Date
FR951230A true FR951230A (en) 1949-10-19

Family

ID=22249835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR951230D Expired FR951230A (en) 1946-07-11 1947-07-03 Improvements to rotary pumps

Country Status (1)

Country Link
FR (1) FR951230A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258543B (en) * 1960-07-16 1968-01-11 Philipp Bormuth Dipl Ing Roots blower with pre-flow into the piston chambers
FR2472094A1 (en) * 1979-12-21 1981-06-26 Pfeiffer Vakuumtechnik ROTARY PISTON PUMP WITH SEVERAL FLOORS
FR2676255A1 (en) * 1991-05-07 1992-11-13 Cit Alcatel Frictionless positive-displacement rotary dry-vacuum pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258543B (en) * 1960-07-16 1968-01-11 Philipp Bormuth Dipl Ing Roots blower with pre-flow into the piston chambers
FR2472094A1 (en) * 1979-12-21 1981-06-26 Pfeiffer Vakuumtechnik ROTARY PISTON PUMP WITH SEVERAL FLOORS
FR2676255A1 (en) * 1991-05-07 1992-11-13 Cit Alcatel Frictionless positive-displacement rotary dry-vacuum pump

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