EP0841483A3 - Gear pump with rotary sealing bar - Google Patents

Gear pump with rotary sealing bar Download PDF

Info

Publication number
EP0841483A3
EP0841483A3 EP98101245A EP98101245A EP0841483A3 EP 0841483 A3 EP0841483 A3 EP 0841483A3 EP 98101245 A EP98101245 A EP 98101245A EP 98101245 A EP98101245 A EP 98101245A EP 0841483 A3 EP0841483 A3 EP 0841483A3
Authority
EP
European Patent Office
Prior art keywords
gear pump
sealing bar
rotary sealing
dbs
sealing web
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
EP98101245A
Other languages
German (de)
French (fr)
Other versions
EP0841483A2 (en
EP0841483B1 (en
Inventor
Peter Blume
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.)
Maag Pump Systems AG
Original Assignee
Maag Pump Systems AG
Maag Pump Systems Textron AG
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 Maag Pump Systems AG, Maag Pump Systems Textron AG filed Critical Maag Pump Systems AG
Priority to EP19980101245 priority Critical patent/EP0841483B1/en
Priority to DE59805364T priority patent/DE59805364D1/en
Publication of EP0841483A2 publication Critical patent/EP0841483A2/en
Publication of EP0841483A3 publication Critical patent/EP0841483A3/en
Application granted granted Critical
Publication of EP0841483B1 publication Critical patent/EP0841483B1/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
    • F04C2/18—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 similar tooth forms
    • 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
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement

Abstract

Die Erfindung betrifft eine Zahnradpumpe mit mindestens zwei in einem Pumpengehäuse (G) enthaltenen ineinandergreifenden Zahnrädern zur Beförderung eines Fördermediums (M) von einer Saugseite (SS) auf eine Druckseite (DS), wobei zahnstirnseitig im Pumpengehäuse (G) eine Nut (FN, QN) vorgesehen ist, die durch einen Dichtsteg (DBS) zur Trennung von Saugseite (SS) und Druckseite (DS) unterbrochen ist. Erfindungsgemäss ist der Dichtsteg (DBS) drehbar ausgebildet.

Figure 00000001
The invention relates to a gear pump with at least two intermeshing gear wheels contained in a pump housing (G) for conveying a conveying medium (M) from a suction side (SS) to a pressure side (DS), with a groove (FN, QN ) is provided, which is interrupted by a sealing web (DBS) to separate the suction side (SS) and pressure side (DS). According to the invention, the sealing web (DBS) is designed to be rotatable.
Figure 00000001
EP19980101245 1998-01-24 1998-01-24 Gear pump with rotary sealing bar Expired - Lifetime EP0841483B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19980101245 EP0841483B1 (en) 1998-01-24 1998-01-24 Gear pump with rotary sealing bar
DE59805364T DE59805364D1 (en) 1998-01-24 1998-01-24 Gear pump with rotating sealing bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980101245 EP0841483B1 (en) 1998-01-24 1998-01-24 Gear pump with rotary sealing bar

Publications (3)

Publication Number Publication Date
EP0841483A2 EP0841483A2 (en) 1998-05-13
EP0841483A3 true EP0841483A3 (en) 1998-08-05
EP0841483B1 EP0841483B1 (en) 2002-09-04

Family

ID=8231308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980101245 Expired - Lifetime EP0841483B1 (en) 1998-01-24 1998-01-24 Gear pump with rotary sealing bar

Country Status (2)

Country Link
EP (1) EP0841483B1 (en)
DE (1) DE59805364D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915784C2 (en) * 1999-04-08 2001-03-01 Fresenius Medical Care De Gmbh Gear pump, in particular for medical purposes
CN111997894B (en) * 2020-09-10 2022-09-09 康斯克泵业(苏州)有限公司 Gear pump convenient for optimizing set position of unloading groove

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1912737A (en) * 1930-02-24 1933-06-06 Ernest J Svenson Adjustable displacement gear pump
US2498790A (en) * 1947-12-22 1950-02-28 Milo C Caughrean Gear pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1912737A (en) * 1930-02-24 1933-06-06 Ernest J Svenson Adjustable displacement gear pump
US2498790A (en) * 1947-12-22 1950-02-28 Milo C Caughrean Gear pump

Also Published As

Publication number Publication date
EP0841483A2 (en) 1998-05-13
EP0841483B1 (en) 2002-09-04
DE59805364D1 (en) 2002-10-10

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