EP0363420A1 - Pump. - Google Patents

Pump.

Info

Publication number
EP0363420A1
EP0363420A1 EP88905368A EP88905368A EP0363420A1 EP 0363420 A1 EP0363420 A1 EP 0363420A1 EP 88905368 A EP88905368 A EP 88905368A EP 88905368 A EP88905368 A EP 88905368A EP 0363420 A1 EP0363420 A1 EP 0363420A1
Authority
EP
European Patent Office
Prior art keywords
resp
pump
cursor
intersection
ensure
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
EP88905368A
Other languages
German (de)
French (fr)
Other versions
EP0363420B1 (en
EP0363420B2 (en
Inventor
Paul G Langer
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.)
Herold and Co GmbH
Original Assignee
LANGER BSA MASCHF
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=EP0363420(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LANGER BSA MASCHF, BSA Maschinenfabrik Paul G Langer GmbH filed Critical LANGER BSA MASCHF
Priority to AT88905368T priority Critical patent/ATE61083T1/en
Publication of EP0363420A1 publication Critical patent/EP0363420A1/en
Publication of EP0363420B1 publication Critical patent/EP0363420B1/en
Application granted granted Critical
Publication of EP0363420B2 publication Critical patent/EP0363420B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)

Abstract

Afin d'assurer un débit régulier et un pompage à haut rendement avec une pompe volumétrique du type Roots, les lignes génératrices (17) de la surface de chaque curseur (6 resp. 7) partent du point d'intersection (18) des grands axes transversaux (15 resp. 16) et s'étendent obliquement en sens opposés par rapport à l'axe longitudinal médian (8 resp. 9) correspondant.In order to ensure a regular flow and high efficiency pumping with a positive displacement pump of the Roots type, the generating lines (17) of the surface of each cursor (6 resp. 7) start from the point of intersection (18) of the large transverse axes (15 resp. 16) and extend obliquely in opposite directions to the corresponding median longitudinal axis (8 resp. 9).

EP88905368A 1987-06-05 1988-06-04 Pump Expired - Lifetime EP0363420B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88905368T ATE61083T1 (en) 1987-06-05 1988-06-04 PUMP.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19873718866 DE3718866A1 (en) 1987-06-05 1987-06-05 PUMP
DE3718866 1987-06-05
PCT/EP1988/000498 WO1988009877A1 (en) 1987-06-05 1988-06-04 Pump

Publications (3)

Publication Number Publication Date
EP0363420A1 true EP0363420A1 (en) 1990-04-18
EP0363420B1 EP0363420B1 (en) 1991-02-27
EP0363420B2 EP0363420B2 (en) 1996-02-07

Family

ID=6329129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905368A Expired - Lifetime EP0363420B2 (en) 1987-06-05 1988-06-04 Pump

Country Status (3)

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

Families Citing this family (2)

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

Family Cites Families (5)

* 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 (en) * 1930-06-11 1932-01-25 Commercial Patents Inc Multiple rotary piston hydraulic pump or motor acting simultaneously
GB382953A (en) 1930-06-11 1932-11-10 Commercial Patents Inc Fluid apparatus provided with co-operating rotary pistons
US2982221A (en) * 1958-07-02 1961-05-02 Joseph E Whitfield Gear pump
DE3502839A1 (en) 1985-01-29 1986-07-31 Bsa Maschinenfabrik Paul G. Langer Gmbh, 8581 Marktschorgast Pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8809877A1 *

Also Published As

Publication number Publication date
EP0363420B1 (en) 1991-02-27
EP0363420B2 (en) 1996-02-07
DE3718866A1 (en) 1988-12-22
DE3861857D1 (en) 1991-04-04
WO1988009877A1 (en) 1988-12-15

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