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DE465320C - Device for sealing gear pumps - Google Patents

Device for sealing gear pumps

Info

Publication number
DE465320C
DE465320C DEM93067D DEM0093067D DE465320C DE 465320 C DE465320 C DE 465320C DE M93067 D DEM93067 D DE M93067D DE M0093067 D DEM0093067 D DE M0093067D DE 465320 C DE465320 C DE 465320C
Authority
DE
Germany
Prior art keywords
gear pumps
sealing gear
wheels
pump
housing
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
Application number
DEM93067D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEM93067D priority Critical patent/DE465320C/en
Application granted granted Critical
Publication of DE465320C publication Critical patent/DE465320C/en
Expired 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
    • F04C2/12Rotary-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
    • 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
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • 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
    • F04C2/18Rotary-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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Description

Einrichtung zur Abdichtung von Zahnradpumpen Die Erfindung betrifft eine Einrichtung zur Abdichtung von Zahnradpumpen und besteht darin, daß in jedem Zahn der Räder ein kegelstumpfförmiges Gleitstück angeordnet ist, das selbsttätig durch die Fliehkraft und Federkraft in radialer Richtung bewegt und dadurch dicht gegen die Flächen des Gehäuses und der entsprechend kegelförmig gestalteten Seitendeckel gedrückt wird, so daß Ungenauigkeiten in den gleitenden Teilen der Pumpe bei der Herstellung oder infolge Abnutzung im Betriebe selbsttätig vermindert oder ganz ausgeschaltet werden. Infolgedessen wird ein genaues Einpassen der gleitenden Teile erhalten und dadurch der Wirkungsgrad der Pumpe erheblich erhöht.Device for sealing gear pumps The invention relates to a device for sealing gear pumps and consists in that in each Tooth of the wheels a frustoconical slider is arranged, which is automatic moved in the radial direction by centrifugal force and spring force and thus sealed against the surfaces of the housing and the correspondingly conical side cover is pressed, so that inaccuracies in the sliding parts of the pump in the Production or automatically reduced or completely as a result of wear and tear in the company turned off. As a result, an accurate fitting of the sliding parts becomes received and thereby the efficiency of the pump increased significantly.

In der Zeichnung ist eine Ausführungsform dargestellt.An embodiment is shown in the drawing.

Abb. r ist ein senkrechter Schnitt durch eine der Achsen der Räder, Abb. z ein senkrechter Schnitt hierzu und Abb. 3 in größerem Maßstab die Ansicht eines Gleitstücks.Fig.r is a vertical section through one of the axles of the wheels, Fig. Z a vertical section to this and Fig. 3 on a larger scale the view a slider.

Das Gehäuse r der Pumpe mit den beiden Seitendeckeln a umschließt die auf den umlaufenden Wellen 5 sitzenden Räder 3, deren Zähne 4 ineinander eingreifen. 6 sind die Saugstutzen und 7 die Druckstutzen. Jede Endfläche 8 der Räder 3 sowie der Zähne ist derart ausgeführt, daß sie einen Kegel bildet, dessen Spitze in der Achse der umlaufenden Welle 5 liegt und dessen Mantelfläche etwas nach innen geneigt ist, so daß die Kegel an den beiden Enden einander gegenüberliegen. Die Innenflächen der Deckel a sind ebenfalls als Kegel ausgeführt, deren Spitzen in der Achse der umlaufenden Welle liegen und die genau den Kegeln der Endflächen 8 der Räder entsprechen und ineinanderpassen. In den Zähnen, und zwar in deren Kopf 9 und den Seitenflächen, isteine tiefe Nut zur Aufnahme eines U-förmigen Gleitstücks ro vorgesehen, das diese Nut vollkommen ausfüllt. Im Boden der Führungsnut sind ein oder mehrere Ausnehmungen r z zur Aufnahme von Schraubenfedern 1z vorhanden.The housing r of the pump encloses the two side covers a the wheels 3 seated on the rotating shafts 5, the teeth 4 of which mesh with one another. 6 are the suction ports and 7 are the pressure ports. Each end face 8 of the wheels 3 as well of the teeth is designed in such a way that it forms a cone, the tip of which in the The axis of the rotating shaft 5 is located and its lateral surface is inclined slightly inward so that the cones are opposite to each other at the two ends. The inner surfaces the cover a are also designed as a cone, the tips of which are in the axis of the rotating shaft and which exactly correspond to the cones of the end surfaces 8 of the wheels and fit together. In the teeth, namely in their head 9 and the side surfaces, a deep groove is provided for receiving a U-shaped slider ro that this Fills the groove completely. There are one or more recesses in the bottom of the guide groove r z to accommodate coil springs 1z available.

Beim Arbeiten der Pumpe wird das Gleitstück ro nicht nur durch die Fliehkraft infolge der Umdrehung des Rades 3 nach außen gedrückt, sondern auch durch die Schraubenfedern. Infolgedessen werden die Endkanten und die Seitenflächen der Gleitstücke dicht gegen das Gehäuse und die Seitendeckel der Pumpe gedrückt. Jede Abnutzung oder jede Ungenauigkeit bei der Herstellung der Teile und jeder Spalt zwischen dem Pumpengehäuse, den Enddeckeln und der Oberfläche der Räder wird infolgedessen vollständig selbsttätig vermindert, so daß Luft, Wasser oder andere Flüssigkeiten nicht hindurchtreten können und der Wirkungsgrad der Pumpe wesentlich erhöht wird.When the pump is working, the slider ro is not only driven by the Centrifugal force as a result of the rotation of the wheel 3 pushed outwards, but also through the coil springs. As a result, the end edges and the side surfaces of the Sliders pressed tightly against the housing and the side cover of the pump. Every Wear or any inaccuracy in the manufacture of the parts and any gap between the pump housing, the end caps and the surface of the wheels will as a result completely automatically reduced, so that air, water or other liquids can not pass and the efficiency of the pump is significantly increased.

Die Erfindung ist auch anwendbar auf andere Pumpen mit umlaufenden Kolben.The invention is also applicable to other pumps with rotary pumps Pistons.

Claims (1)

PATRNTANSPRUCH: Einrichtung zur Abdichtung von Zahnradpumpen, dadurch gekennzeichnet, daß in sämtliche Zähme (4) der Räder kegelstumpfförmige Gleitstücke (zo) eingesetzt sind, die durch die Fliehkraft selbsttätig in radialer Richtung bewegt und dadurch dicht gegen das Gehäuse und die entsprechend kegelförmig gestalteten Seitendeckel gepreßt werden.PATRNT CLAIM: Device for sealing gear pumps, thereby characterized in that in all tames (4) of the wheels frustoconical sliders (zo) are used, which by the centrifugal force automatically in the radial direction moved and thus tightly against the housing and the correspondingly cone-shaped Side covers are pressed.
DEM93067D Device for sealing gear pumps Expired DE465320C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM93067D DE465320C (en) Device for sealing gear pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM93067D DE465320C (en) Device for sealing gear pumps

Publications (1)

Publication Number Publication Date
DE465320C true DE465320C (en) 1928-09-13

Family

ID=7322296

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM93067D Expired DE465320C (en) Device for sealing gear pumps

Country Status (1)

Country Link
DE (1) DE465320C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171271B (en) * 1958-03-12 1964-05-27 Daimler Benz Ag Gear pump
DE102010049439A1 (en) * 2010-10-23 2012-04-26 Audi Ag External gear pump for lubrication of internal combustion engines of motor vehicles, has housing and two gear wheels which are rotatable within housing around parallel rotational axes
DE102017203003A1 (en) 2017-02-24 2018-08-30 Robert Bosch Gmbh External gear pump for a waste heat recovery system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171271B (en) * 1958-03-12 1964-05-27 Daimler Benz Ag Gear pump
DE102010049439A1 (en) * 2010-10-23 2012-04-26 Audi Ag External gear pump for lubrication of internal combustion engines of motor vehicles, has housing and two gear wheels which are rotatable within housing around parallel rotational axes
DE102010049439B4 (en) * 2010-10-23 2014-06-26 Audi Ag External gear pump
DE102017203003A1 (en) 2017-02-24 2018-08-30 Robert Bosch Gmbh External gear pump for a waste heat recovery system

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