FR2253155B3 - - Google Patents

Info

Publication number
FR2253155B3
FR2253155B3 FR7439411A FR7439411A FR2253155B3 FR 2253155 B3 FR2253155 B3 FR 2253155B3 FR 7439411 A FR7439411 A FR 7439411A FR 7439411 A FR7439411 A FR 7439411A FR 2253155 B3 FR2253155 B3 FR 2253155B3
Authority
FR
France
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
FR7439411A
Other versions
FR2253155A1 (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.)
LICENSING CORP H ET H
Original Assignee
LICENSING CORP H ET H
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 LICENSING CORP H ET H filed Critical LICENSING CORP H ET H
Publication of FR2253155A1 publication Critical patent/FR2253155A1/fr
Application granted granted Critical
Publication of FR2253155B3 publication Critical patent/FR2253155B3/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
    • 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
    • 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
    • F04C18/14—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 toothed rotary pistons
    • F04C18/16—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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
FR7439411A 1973-12-04 1974-12-02 Low volume screw compressor - rotors are shaped for improved gas flow Granted FR2253155A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732360403 DE2360403A1 (de) 1973-12-04 1973-12-04 Schraubenkompressoranlage zum verdichten von gasfoermigen medien, insbesondere fuer geringe ansaugvolumina

Publications (2)

Publication Number Publication Date
FR2253155A1 FR2253155A1 (en) 1975-06-27
FR2253155B3 true FR2253155B3 (fr) 1977-08-26

Family

ID=5899841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439411A Granted FR2253155A1 (en) 1973-12-04 1974-12-02 Low volume screw compressor - rotors are shaped for improved gas flow

Country Status (3)

Country Link
BE (1) BE822876A (fr)
DE (1) DE2360403A1 (fr)
FR (1) FR2253155A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482209A1 (en) * 1980-03-17 1981-11-13 Worthington Compressors Inc Rotary gas-compressor assembly - has pair of cooperating lobed rotors of dissimilar asymmetric configurations and incorporating balancing plugs
DE3140107A1 (de) * 1981-10-09 1983-04-28 Technika Beteiligungsgesellschaft mbH, 4800 Bielefeld Drehkolbenverdichter
DE3140108A1 (de) * 1981-10-09 1983-04-28 Technika Beteiligungsgesellschaft mbH, 4800 Bielefeld Drehkolbenverichter
CN109505770A (zh) * 2018-11-30 2019-03-22 江阴爱尔姆真空设备有限公司 一种并联式大排量螺杆泵装置

Also Published As

Publication number Publication date
BE822876A (fr) 1975-04-01
FR2253155A1 (en) 1975-06-27
DE2360403A1 (de) 1975-06-05

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