DE801187C - Adjustable gear pump - Google Patents

Adjustable gear pump

Info

Publication number
DE801187C
DE801187C DENDAT801187D DE801187DA DE801187C DE 801187 C DE801187 C DE 801187C DE NDAT801187 D DENDAT801187 D DE NDAT801187D DE 801187D A DE801187D A DE 801187DA DE 801187 C DE801187 C DE 801187C
Authority
DE
Germany
Prior art keywords
gear
gear pump
adjustable gear
piston
adjustable
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
DENDAT801187D
Other languages
German (de)
Inventor
Anton Moskopp
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.)
GERDA ALFLEN
Original Assignee
GERDA ALFLEN
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.)
Publication date
Application granted granted Critical
Publication of DE801187C publication Critical patent/DE801187C/en
Expired 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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

Landscapes

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

Description

Die regelbare Zahnradpumpe soll bei gleichbleibender Tourenzahl eine unterschiedliche Menge Flüssigkeit fördern, ohne daß die Durchgangsöffnungen der Saug- oder Druckleitungen verändert werden. Die regelbare Zahnradlrumpe soll beispielsweise in einem Flüssigkeitsgetriebe eine normale Zahnradpumpe treiben und deren Tourenzahl durch Zuführung einer größeren oder kleineren Menge Flüssigkeit verändern.The controllable gear pump is supposed to have a constant number of revolutions promote different amounts of liquid without the through openings of the Suction or pressure lines are changed. The controllable gear lump should for example drive a normal gear pump in a fluid transmission and its number of revolutions change by adding a larger or smaller amount of liquid.

Die Menge der von der regelbaren Zahrtra(lpurnpe gefi'')rclerten Flüssigkeit wird durch eine Verschiebung des einen Zahnradkolbens 3 in Richtung seiner Längsachse geändert. Durch das Verschieüen des Zahnradkolbens 3 kämmen einmal die gesamten Zahnbreiten der Zahnradkolben 3 und :4, ein andermal nur ein Bruchteil der Zahnbreiten. Mit einer normalen Zahnradpumpe ist dies nicht möglich.The amount of fluid cleared by the controllable meter (lpurnpe) is achieved by shifting a gear piston 3 in the direction of its longitudinal axis changed. By shifting the gear piston 3, all of them mesh once Tooth widths of gear pistons 3 and: 4, at other times only a fraction of the tooth widths. This is not possible with a normal gear pump.

Die regelbare Zahnradpumpe saugt und drückt genau wie eine normale Zahnradpumpe. Will man die Fördermenge verringern, dann schiebt nian die Welle I nach rechts. Dadurch wird das Zwischenstück 2, in welcher sich die Welle I lose dreht, initgenommen und gleichzeitig der auf der Welle I festverkeilteZahriradkolben3.Die hierbeifreiwerdenden /ahnlücken des Zahnradkolbens 3 werden durch die Zahulückenhülse 5, in welche der Zahnradkolben 3 geschoben wird, geschlossen, so daß Saug- und Druckraum an dieser Seite gegeneinander abgedichtet sind. An der anderen Seite des Zahnradkolberis 3 sind Saug- und Druckraum durch das Zwischenstück 2 gegeneinander abgedichtet. Die Zahnlückenhülse Er wird von dem Zwischenstück 2 in die freiwerdenden Zahnlücken des Zahnradkolbens .4 geschoben und dichtet so Satig- und Druckraum ab. Dadurch wird erreicht, dal3 der Wirkungsgrad der regelbaren Zahnradpumpe unabhängig von der F@ir(lerineuge ist.The adjustable gear pump sucks and presses just like a normal one Gear pump. If you want to reduce the delivery rate, then shaft I is pushed To the right. As a result, the intermediate piece 2, in which the shaft I is loose rotates, taken and at the same time the bicycle piston wedged onto shaft I. The gaps in the gear piston 3 are released by the tooth gap sleeve 5, into which the gear piston 3 is pushed, closed, so that the suction and pressure chamber are sealed against each other on this side. On the other side of the gear piston 3, the suction and pressure chambers are sealed off from one another by the intermediate piece 2. The tooth gap sleeve He is from the intermediate piece 2 in the vacated tooth gaps of the gear piston .4 and thus seals the satellite and pressure chamber. Through this it is achieved that the efficiency of the controllable gear pump is independent of the F @ ir (lerineuge is.

Die Öffnungen 7, 8, und ) sind durch Rohrleitungen mit <lern Druckraum zwecks Druckausgleich verbunden, um (las Verschieben der einzelnen Teile zu erleichtern. Das Steigern der Fördermenge geschieht aui umgekehrte Weise, wobei sich sämtliche Verschiebungen in umgelehrter Richtung vollziehen.The openings 7, 8, and) are through pipelines with <lern pressure chamber connected in order to equalize the pressure in order to facilitate the movement of the individual parts. The delivery rate is increased in the opposite way, with all Make shifts in the reverse direction.

Wird der Druckratini der regelbaren Zahnradpumpe durch eine Rohrleitung mit dein Saugraum einer normalen Zahnradpumpe verbunden und der Saugrahm der regelbaren Zahnradpumpe mit dein Druckraum der normalen Zalniradliumpe, so erhält rnan ein Flüssigkeitsgetriebe, in dem die Tourenzahlen der normalen Pumpe abhängig sind von der Fördermenge der regelbaren Zahnradpumpe. Hierdurch kann in ge-,vissen Grenzen (las Übersetzungsverhältnis des so entstandenen Flüssigkeitsgetriebes verändert werden, ebenso das übertragene Drehmoment, da bei sinkender F@ir(iermenge der Druckentsprechend erliölit werden kann.The pressure rate of the controllable gear pump becomes through a pipeline connected to your suction chamber of a normal gear pump and the suction frame of the adjustable Gear pump with the pressure chamber of the normal Zalniradliumpe, so a Fluid transmission in which the number of revolutions of the normal pump depends on the delivery rate of the adjustable gear pump. This allows within certain limits (read the transmission ratio of the resulting fluid gear changed as well as the transmitted torque, since with decreasing F @ ir (ier amount the pressure can be erliölit.

Claims (1)

FATL:NTA\Sr'HUCII: Regelbare Zahnradhunipe, dadurch gekennzeichnet, daß durch Verschieben eines der Zahnradkolben in seiner Län-sachse und durch gleichzeitiges Abdecken der dann nicht mehr kämmenden Teile der Zahnradkolben mittels gleitender und initrotierender Zahnlückenhülsen die Fördermenge bei konstanter Drehzahl gleichmäßig verringert oder in der entgegengesetzten Richtung vergr@il.iert wird.FATL: NTA \ Sr'HUCII: Adjustable gear wheel tube, characterized in that that by moving one of the gear pistons in its Län-sachse and by simultaneous Cover the then no longer meshing parts of the gear piston by means of sliding and initrotating tooth gap sleeves the delivery rate evenly at constant speed reduced or enlarged in the opposite direction.
DENDAT801187D 1949-04-20 Adjustable gear pump Expired DE801187C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE801187T 1949-04-20

Publications (1)

Publication Number Publication Date
DE801187C true DE801187C (en) 1950-12-28

Family

ID=577710

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT801187D Expired DE801187C (en) 1949-04-20 Adjustable gear pump

Country Status (1)

Country Link
DE (1) DE801187C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887960A (en) * 1955-11-23 1959-05-26 Tobias Jordan Automatic hydraulic transmission
DE3028573A1 (en) * 1980-07-28 1982-02-25 Ernst Heiberger Hydraulic gear pump-motor with meshing gears - has one gear axially displaceable relative to second gear, to adjust volume

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887960A (en) * 1955-11-23 1959-05-26 Tobias Jordan Automatic hydraulic transmission
DE3028573A1 (en) * 1980-07-28 1982-02-25 Ernst Heiberger Hydraulic gear pump-motor with meshing gears - has one gear axially displaceable relative to second gear, to adjust volume

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