DE29903512U1 - Gear for a gear pump - Google Patents

Gear for a gear pump

Info

Publication number
DE29903512U1
DE29903512U1 DE29903512U DE29903512U DE29903512U1 DE 29903512 U1 DE29903512 U1 DE 29903512U1 DE 29903512 U DE29903512 U DE 29903512U DE 29903512 U DE29903512 U DE 29903512U DE 29903512 U1 DE29903512 U1 DE 29903512U1
Authority
DE
Germany
Prior art keywords
gear
depressions
tooth
wheel
teeth
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 - Lifetime
Application number
DE29903512U
Other languages
English (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.)
Joma Polytec Kunststofftechnik GmbH
Original Assignee
Joma Polytec Kunststofftechnik 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
Priority to DE29810548U priority Critical patent/DE29810548U1/de
Application filed by Joma Polytec Kunststofftechnik GmbH filed Critical Joma Polytec Kunststofftechnik GmbH
Priority to DE29903512U priority patent/DE29903512U1/de
Publication of DE29903512U1 publication Critical patent/DE29903512U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084Toothed wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12Rotary-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
    • F04C2/14Rotary-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

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Zahnrad (10; 46), dessen Zähne (14; 44) einen von den Radstirnseiten (20, 22) aus zugänglichen Zahninnenraum aufweisen, dadurch gekennzeichnet, dass der Zahninnenraum eine Zwischenwand (32) aufweist, durch die dieser in zwei im wesentlichen gleich bemessene, zueinander verbindungsfreie Vertiefungen (24, 26; 48, 50) aufgeteilt ist.1. gear ( 10 ; 46 ), the teeth ( 14 ; 44 ) of which have a tooth interior accessible from the wheel end faces ( 20 , 22 ), characterized in that the tooth interior has an intermediate wall ( 32 ) through which the latter essentially in two equally sized, connection-free depressions ( 24 , 26 ; 48 , 50 ) is divided.
2. Zahnrad nach Anspruch 1, dadurch gekennzeichnet, dass Umfangsflächenabschnitte der Vertiefungen (24, 26; 48, 50) in etwa parallel zu den ihnen benachbarten Zahnflanken (36, 38) und dem Zahnkopf (40) des Zahnrades (10 bzw. 46) verlaufen.2. Gear according to claim 1, characterized in that peripheral surface portions of the depressions ( 24 , 26 ; 48 , 50 ) approximately parallel to the tooth flanks ( 36 , 38 ) adjacent to them and the tooth head ( 40 ) of the gear ( 10 or 46 ) run.
3. Zahnrad nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die Vertiefungen (24, 26; 48, 50) nach innen verjüngen.3. Gear according to claim 1 or 2, characterized in that the depressions ( 24 , 26 ; 48 , 50 ) taper inwards.
4. Zahnrad nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass bei einem außen verzahnten Zahnrad (10) sich die Vertiefungen (24, 26) radial über den Zahngrundkreis hinaus-, bzw. in den Radkörper (12) hineinerstrecken. 4. Gear according to one of the preceding claims, characterized in that in the case of an externally toothed gear ( 10 ), the depressions ( 24 , 26 ) extend radially beyond the tooth base circle or extend into the wheel body ( 12 ).
5. Zahnrad nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass bei einem innenverzahnten Zahnrad (46) durch die Vertiefungen (48, 50) gleiche Wanddicken an den Radinnenzähnen (44) und im Bereich des Radkörperaußenumfanges (52) gebildet sind.5. Gear according to one of the preceding claims 1 to 3, characterized in that in the case of an internally toothed gear ( 46 ) through the recesses ( 48 , 50 ) the same wall thicknesses are formed on the inner teeth ( 44 ) and in the region of the outer periphery of the wheel body ( 52 ).
6. Zahnrad nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Zahnrad (10; 46) aus einem Kunststoff hoher Abriebfestigkeit, insbesondere aus Polyphenylensulfid (PPS) oder Polyethersulfon (PES) hergestellt ist.6. Gear according to one of the preceding claims 1 to 3, characterized in that the gear ( 10 ; 46 ) is made of a plastic with high abrasion resistance, in particular of polyphenylene sulfide (PPS) or polyether sulfone (PES).
DE29903512U 1998-06-16 1999-02-26 Gear for a gear pump Expired - Lifetime DE29903512U1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29810548U DE29810548U1 (de) 1998-06-16 1998-06-16 Gear for a gear pump
DE29903512U DE29903512U1 (de) 1998-06-16 1999-02-26 Gear for a gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29903512U DE29903512U1 (de) 1998-06-16 1999-02-26 Gear for a gear pump

Publications (1)

Publication Number Publication Date
DE29903512U1 true DE29903512U1 (de) 1999-09-30

Family

ID=8058457

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29810548U Expired - Lifetime DE29810548U1 (de) 1998-06-16 1998-06-16 Gear for a gear pump
DE29903512U Expired - Lifetime DE29903512U1 (de) 1998-06-16 1999-02-26 Gear for a gear pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE29810548U Expired - Lifetime DE29810548U1 (de) 1998-06-16 1998-06-16 Gear for a gear pump

Country Status (1)

Country Link
DE (2) DE29810548U1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009012872A1 (de) * 2007-07-25 2009-01-29 Joma-Hydromechanic Gmbh Integrierte innenzahnradpumpeneinheit mit elektrischem motor
EP2161453A2 (de) 2008-09-05 2010-03-10 PKT Präzisionskunststofftechnik Bürtlmair GmbH Rotorensatz und Rotorpumpe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006629C2 (de) * 2000-02-14 2002-06-27 Joma Hydromechanic Gmbh Plastic gear wheel for a gear pump and method for its production
DE10114148C1 (de) * 2001-03-22 2002-06-06 Dieter Brox Selbstzentrierende Zahnradpumpe
ITBO20020167A1 (it) 2002-03-29 2003-09-29 Corob Spa Perfezionamenti in una pompa volumetrica rotativa per prodotti fluidi

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009012872A1 (de) * 2007-07-25 2009-01-29 Joma-Hydromechanic Gmbh Integrierte innenzahnradpumpeneinheit mit elektrischem motor
US8113794B2 (en) 2007-07-25 2012-02-14 Joma-Polytec Kunststofftechnik Gmbh Integrated internal gear pump with an electric motor
EP2161453A2 (de) 2008-09-05 2010-03-10 PKT Präzisionskunststofftechnik Bürtlmair GmbH Rotorensatz und Rotorpumpe

Also Published As

Publication number Publication date
DE29810548U1 (de) 1998-12-17

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19991104

R150 Term of protection extended to 6 years

Effective date: 20020710

R151 Term of protection extended to 8 years

Effective date: 20050429

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: F04C0015000000

Ipc: F04C0002100000

R152 Term of protection extended to 10 years

Effective date: 20070516

R071 Expiry of right