DE2951952C2 - Internal gear pump - Google Patents
Internal gear pumpInfo
- Publication number
- DE2951952C2 DE2951952C2 DE19792951952 DE2951952A DE2951952C2 DE 2951952 C2 DE2951952 C2 DE 2951952C2 DE 19792951952 DE19792951952 DE 19792951952 DE 2951952 A DE2951952 A DE 2951952A DE 2951952 C2 DE2951952 C2 DE 2951952C2
- Authority
- DE
- Germany
- Prior art keywords
- pump
- external gear
- internal gear
- radially
- pinion
- 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
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
- F04C2/10—Rotary-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
- F04C2/101—Rotary-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 with a crescent-shaped filler element, located between the inner and outer intermeshing members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
außen offen. Es ist von der Antriebswelle 13 der Pumpeopen on the outside. It is from the drive shaft 13 of the pump
I angetrieben und treibt seinerseits das ihm gegenüber exzentrisch angeordnete Ritzel 3 an. In einem zwischen der Innenkontur des Außenzahnrades 2 und der Außenkontur des Ritzels 3 Hegenden Trennabschniit Ta befin- det sich in üblicher Weise ein Füllstück 7. Die Eintrittsöffnung F1 in den Pumpen-Innenraum 4a ist axial angeordnet; ihre Umrißform ist in F i g. 2 strichpunktiert angedeutet Dabei beginnt die Eintrittsöffnung F1, in Umlaufrichtung Pf 3 des Außenzahnrades 2 gesehen, etwa in einem Abstand 20 von der Auslaßöffnung F2 des Auslaßstutzens 6 (vgL Pfeil PfA), der etwa dem lichten Abstand 21 von zwei benachbarten Zähnen t4 des Außenzahnrades 2 entspricht Erfindungsgemäß ist die Auslaßöffnung F2 radial zum Außenzahnrad 2 angeordnetI is driven and in turn drives the pinion 3 arranged eccentrically opposite it. In a separating section Ta lying between the inner contour of the external gear wheel 2 and the outer contour of the pinion 3 there is a filler piece 7 in the usual way. The inlet opening F1 into the pump interior 4a is arranged axially; its outline is shown in FIG. 2 indicated by dot-dash lines Here, the inlet opening F1 begins, seen in the direction of rotation Pf 3 of the external gear 2, approximately at a distance 20 from the outlet opening F2 of the outlet connection 6 (see arrow PfA), which is approximately the clear distance 21 from two adjacent teeth t4 of the external gear 2 According to the invention, the outlet opening F2 is arranged radially to the external gear 2
Wie gut aus F i g. 2 erkennbar, erstreckt sich die dort strichpunktiert gezeichnete Eintrittsöffnung F1, ih Umlaufrichtung Pf 3 des Außenzahnrades 2 gesehen, in an sich bekannter Weise etwa über eine Strecke J, die dem Abstand 23 der Außenkontur von zwei benachbarten Zähnen 14a, 146 des Außenzahnrades 2 entspricht Dabei ist die Eintrittsöffnung Fl als auf die FörderlückenAs well from Fig. 2, the inlet opening F1, shown there with dash-dotted lines, extends in a manner known per se, approximately over a distance J which corresponds to the distance 23 of the outer contour of two adjacent teeth 14a, 146 of the external gear 2, seen in the direction of rotation Pf 3 is the inlet opening Fl than on the delivery gaps
II gerichteter Kreisringsektor ausgebildet der einen radial innenliegenden, in den Verdrängerbereich des Ritzels 3 hineinragenden Abschnitt 24 hat Dadurch wird der durch die Zuflußöffnung 5 eintretende Strom (vgl. Pf ί in Fig. 1) des Fördermediums nicht nur dem Pumpen-Innenraum Aa entsprechend den Pfeilen PfS axial zugeführt, sondern dieser in den Bereich des Außenzahnrades 2 und des Ritzels 3 eintretende Förderstrom ist dort auch im wesentlichen auf die Förderlükken 11 zwischen den Zähnen 14 des Außenzahnrades 2 bzw. die Zahnlücken 12 zwischen den Zähnen 31 des Ritzels gerichtet wodurch der Ansaugvorgang begunstigt wird. Mit 10 ist die Kontur der Eintrittsöffnung F1 bezeichnetII directed circular ring sector formed of a radially inner, projecting into the displacement portion of the pinion 3, section 24 has a result, the stream entering through the inflow opening 5 is (see FIG. Pf ί in Fig. 1) of the conveying medium, not only the pump interior Aa according to the arrows PfS axially supplied, but this delivery flow entering the area of the external gear 2 and the pinion 3 is also directed there essentially at the delivery gaps 11 between the teeth 14 of the external gear 2 and the tooth gaps 12 between the teeth 31 of the pinion, which favors the suction process will. The contour of the inlet opening F1 is denoted by 10
4040
4545
5050
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Claims (2)
einem Pumpen-Innenraum angeordneten Verdränger- Die erfindungsgemäße Lösung besteht darin, daß bei rädern, von denen das von einer Welle angetriebene 40 einer Innenzahnradpumpe gemäß dem Oberbegriff des Außenrad radial nach außen offen ist, wobei in einem ersten Anspruches die Auslaßöffnung radial zum Auzwischen dem Außenrad und dem Innenrad liegenden ßenzahnrad angeordnet ist. Bei einer solchen Innen-Trennabschnitt ein Füllstück vorgesehen ist (GB-PS zahnradpumpe werden die Vorteile einer axialen Ein-4 18 439). Bei dieser Pumpe sind sowohl die in den Pum- strömung und die Vorteile einer zentrifugalen Ausströpen-Innenraum hineinführende Eintrittsöffnung als 45 mung des Fördermediums unter weitestgehender Verauch die daraus hinausführende Austrittsöffnung für das meidung von Umlenkstellen u.dgl. ausgenutzt. Die Fördermedium etwa radial bis tangential zu den Ver- Saughöhe und die praktikable Pumpendrehzahl können drängerrädem orientiert. Dies hat den Nachteil, daß die dadurch erhöht werden.Numerous internal gear pumps are already known to improve internal gear pumps in such a way that their intake, however, still has various disadvantages. So increased in height and the speed of rotation is misunderstood, an internal gear pump can be increased with two pumps of the same type,
A pump interior arranged displacer- The solution according to the invention is that in wheels, of which the driven by a shaft 40 of an internal gear pump according to the preamble of the outer wheel is open radially outward, wherein in a first claim, the outlet opening radially to Auzwischen the outer wheel and the internal gear lying ßenzahnrad is arranged. In such an inner separating section a filler piece is provided (GB-PS gear pump, the advantages of an axial one-4 18 439). In this pump, both the inlet opening leading into the pumping flow and the advantages of a centrifugal outflow interior are used as the flow of the conveying medium, while the outlet opening leading therefrom is largely used to avoid deflection points and the like. The pumped medium can be oriented roughly radially to tangential to the suction lift and the practicable pump speed. This has the disadvantage that they are increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792951952 DE2951952C2 (en) | 1979-12-22 | 1979-12-22 | Internal gear pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792951952 DE2951952C2 (en) | 1979-12-22 | 1979-12-22 | Internal gear pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2951952A1 DE2951952A1 (en) | 1981-07-02 |
DE2951952C2 true DE2951952C2 (en) | 1985-09-12 |
Family
ID=6089381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792951952 Expired DE2951952C2 (en) | 1979-12-22 | 1979-12-22 | Internal gear pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2951952C2 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB284411A (en) * | 1926-10-30 | 1928-01-30 | Stone J & Co Ltd | Improvements in rotary engines, pumps, blowers, compressors, meters and the like |
GB418439A (en) * | 1933-03-23 | 1934-10-23 | Claude Warren Loveridge | Improvements in and relating to rotary engines, pumps, and meters |
DE873208C (en) * | 1943-04-22 | 1953-04-13 | Gerhard Schimkat | Rotary lobe pump |
FR1354417A (en) * | 1963-04-02 | 1964-03-06 | Daimler Benz Ag | Pump with toothed gears, in particular for use as a pressure generator in automatically controlled transmissions of motor cars |
GB1129605A (en) * | 1965-01-22 | 1968-10-09 | Harald Hagenes | Hydraulic gear pumps and motors |
CH482923A (en) * | 1967-11-20 | 1969-12-15 | Truninger Ag | Gear pump kit |
DE1994252U (en) * | 1968-06-04 | 1968-09-19 | Karl Schnell | PUMP, ESPECIALLY FOR DOUGH MEDIA. |
GB1457514A (en) * | 1973-05-10 | 1976-12-01 | Lucas Industries Ltd | Gear pumps and motors |
-
1979
- 1979-12-22 DE DE19792951952 patent/DE2951952C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2951952A1 (en) | 1981-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: LEDERLE GMBH PUMPEN- UND MASCHINENFABRIK, 7803 GUN |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 2954250 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 2954250 |
|
AH | Division in |
Ref country code: DE Ref document number: 2954250 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |