DE170966C - - Google Patents

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Publication number
DE170966C
DE170966C DENDAT170966D DE170966DA DE170966C DE 170966 C DE170966 C DE 170966C DE NDAT170966 D DENDAT170966 D DE NDAT170966D DE 170966D A DE170966D A DE 170966DA DE 170966 C DE170966 C DE 170966C
Authority
DE
Germany
Prior art keywords
piston
regulator
movement
pump
stroke
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.)
Active
Application number
DENDAT170966D
Other languages
German (de)
Publication of DE170966C publication Critical patent/DE170966C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B3/00Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10Other safety measures
    • F04B49/103Responsive to speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/16Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by adjusting the capacity of dead spaces of working chambers

Landscapes

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Bei den bereits bekannten einkolbigen Pumpen mit vom Regulator beeinflußter Fördermenge geschieht die Veränderung der Fördermenge meist durch Änderung des Kolbenhubes. Diese Änderungen bedingen unvermeidlich ein starkes Rückwirken auf den Regulator und infolgedessen sehr kräftige Regulatoren. Zum Unterschied von diesen Pumpen wird bei der den Gegenstand derIn the already known single-piston pumps with one influenced by the regulator Delivery rate, the change in delivery rate occurs mostly by changing the piston stroke. These changes require inevitably a strong reaction on the regulator and consequently very strong Regulators. In contrast to these pumps, the subject of

ίο Erfindung bildenden Maschine die Änderung der Fördermenge durch einen zweiten Kolben b bewirkt, derart, ■ daß beim Saughube des Kolbens α dieser, sich zunächst allein bewegend, eine der Regulatorstellung entsprechende Fördermenge ansaugt. Im weiteren Verlaufe des Saughubes wird durch die Druckrolle c der Kolben b in entgegengesetztem Sinne von α bewegt, so daß bei entsprechender Bemessung des Kolbens und der Kolbengeschwindigkeiten das Volumen des Saugraumes durch den Kolben b um ebensoviel vermindert, wie es durch die Bewegung von α vermehrt wird. Beim Druckhube tritt zunächst das Entgegengesetzte ein, bis durch den Anschlag d der Kolben b . aufgehalten wird. Die Rolle c wie auch das ganze Regulatorgestänge kann sich frei bewegen, während der Kolben α das Restvolumen seines Hubes fördert.ίο Invention forming machine causes the change in the delivery rate by a second piston b , in such a way that ■ when the piston is suctioned α this, initially moving alone, sucks in a delivery rate corresponding to the regulator position. In the further course of the suction stroke, the pressure roller c moves the piston b in the opposite direction of α , so that with the appropriate dimensioning of the piston and the piston speeds, the volume of the suction chamber is reduced by the piston b by as much as it is increased by the movement of α will. During the pressure stroke, the opposite occurs first, until the piston b passes through the stop d . is stopped. The roller c as well as the entire regulator linkage can move freely, while the piston α promotes the remaining volume of its stroke.

Aus Fig. 2 ist ersichtlich, wie bei niederster Regulatorstellung die Rolle c den Regulierkolben überhaupt nicht berührt, der Förderkolben α mithin die seinem Hube entsprechende größtmögliche Menge fördert.From Fig. 2 it can be seen how, in the lowest regulator position, the roller c does not touch the regulating piston at all, the delivery piston α consequently conveying the greatest possible amount corresponding to its stroke.

T, ΛT, Λ

Claims (1)

Patent-Anspruch :Patent claim: Zweikolbenpumpe mit einer vom Regulator beeinflußten Vorrichtung zur Veränderung der Fördermenge, gekennzeichnet durch einen zweiten Plunger (b), welcher sich zwecks Veränderung der Fördermenge längere oder kürzere Zeit dem Förderplunger (a) entgegengesetzt bewegt, derart, daß das Volumen des Arbeitsraumes konstant bleibt, mithin keine Flüssigkeitsbewegung durch die Ventile stattfinden kann, wobei dieser Kolben nur während dieser seiner Bewegungszeit unter direkter Einwirkung des Regulators steht, so daß eine Rückwirkung durch die in der Pumpe auftretenden Drücke auf letzteren tunlichst vermieden wird.Two piston pump with a influenced by the regulator device for varying the discharge rate, characterized by a second plunger (b) extending the purpose of changing the delivery time longer or shorter the Förderplunger (a) opposite moved such that the volume of the working space remains constant, thus no liquid movement can take place through the valves, this piston being under the direct action of the regulator only during this period of its movement, so that a reaction by the pressures occurring in the pump on the latter is avoided as far as possible. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings. (2. Auflage, ausgegeben am 6. Juli ic(2nd edition, issued on July 6th ic
DENDAT170966D Active DE170966C (en)

Publications (1)

Publication Number Publication Date
DE170966C true DE170966C (en)

Family

ID=435968

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT170966D Active DE170966C (en)

Country Status (1)

Country Link
DE (1) DE170966C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211015A1 (en) * 1992-04-02 1993-10-07 Webasto Thermosysteme Gmbh Piston pump or membrane pump for delivery of fuel to burner for heater - uses balancing system of cylinder chamber and piston to ensure pulsation-free output.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211015A1 (en) * 1992-04-02 1993-10-07 Webasto Thermosysteme Gmbh Piston pump or membrane pump for delivery of fuel to burner for heater - uses balancing system of cylinder chamber and piston to ensure pulsation-free output.

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