WO1988009877A1 - Pump - Google Patents

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Info

Publication number
WO1988009877A1
WO1988009877A1 PCT/EP1988/000498 EP8800498W WO8809877A1 WO 1988009877 A1 WO1988009877 A1 WO 1988009877A1 EP 8800498 W EP8800498 W EP 8800498W WO 8809877 A1 WO8809877 A1 WO 8809877A1
Authority
WO
WIPO (PCT)
Prior art keywords
resp
pump
roots
runner
originating
Prior art date
Application number
PCT/EP1988/000498
Other languages
English (en)
French (fr)
Inventor
Paul G. Langer
Original Assignee
Bsa Maschinenfabrik Paul G. Langer Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6329129&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1988009877(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bsa Maschinenfabrik Paul G. Langer Gmbh filed Critical Bsa Maschinenfabrik Paul G. Langer Gmbh
Priority to DE8888905368T priority Critical patent/DE3861857D1/de
Priority to EP88905368A priority patent/EP0363420B2/de
Priority to AT88905368T priority patent/ATE61083T1/de
Publication of WO1988009877A1 publication Critical patent/WO1988009877A1/de

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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
    • F04C2/16—Rotary-piston machines or pumps 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
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/126—Rotary-piston machines or engines 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 elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
PCT/EP1988/000498 1987-06-05 1988-06-04 Pump WO1988009877A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8888905368T DE3861857D1 (de) 1987-06-05 1988-06-04 Pumpe.
EP88905368A EP0363420B2 (de) 1987-06-05 1988-06-04 Pumpe
AT88905368T ATE61083T1 (de) 1987-06-05 1988-06-04 Pumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3718866.6 1987-06-05
DE19873718866 DE3718866A1 (de) 1987-06-05 1987-06-05 Pumpe

Publications (1)

Publication Number Publication Date
WO1988009877A1 true WO1988009877A1 (en) 1988-12-15

Family

ID=6329129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000498 WO1988009877A1 (en) 1987-06-05 1988-06-04 Pump

Country Status (3)

Country Link
EP (1) EP0363420B2 (de)
DE (2) DE3718866A1 (de)
WO (1) WO1988009877A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121684C2 (de) * 1991-06-29 1999-04-01 Herold & Co Gmbh Pumpe
DE102006041633A1 (de) * 2006-09-05 2008-03-13 Herold & Co. Gmbh Pumpe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB382953A (en) 1930-06-11 1932-11-10 Commercial Patents Inc Fluid apparatus provided with co-operating rotary pistons
DE3502839A1 (de) 1985-01-29 1986-07-31 Bsa Maschinenfabrik Paul G. Langer Gmbh, 8581 Marktschorgast Pumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1142734A (en) * 1913-04-30 1915-06-08 Charles W Sidwell Pump.
FR718487A (fr) * 1930-06-11 1932-01-25 Commercial Patents Inc Pompe ou moteur hydraulique à pistons rotatifs multiples agissant simultanément
US2982221A (en) * 1958-07-02 1961-05-02 Joseph E Whitfield Gear pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB382953A (en) 1930-06-11 1932-11-10 Commercial Patents Inc Fluid apparatus provided with co-operating rotary pistons
DE3502839A1 (de) 1985-01-29 1986-07-31 Bsa Maschinenfabrik Paul G. Langer Gmbh, 8581 Marktschorgast Pumpe

Also Published As

Publication number Publication date
EP0363420A1 (de) 1990-04-18
DE3718866A1 (de) 1988-12-22
EP0363420B1 (de) 1991-02-27
EP0363420B2 (de) 1996-02-07
DE3861857D1 (de) 1991-04-04

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