AT57603B - Liquid pump with variable delivery rate. - Google Patents
Liquid pump with variable delivery rate.Info
- Publication number
- AT57603B AT57603B AT57603DA AT57603B AT 57603 B AT57603 B AT 57603B AT 57603D A AT57603D A AT 57603DA AT 57603 B AT57603 B AT 57603B
- Authority
- AT
- Austria
- Prior art keywords
- liquid pump
- piston
- control valve
- valve
- pump according
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims description 7
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Description
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hältnismässig kurzen Feder wird sich das Ventil schneller aufsetzen und dadurch die Belastung schneller an das Rad anschalten als bei grösserem Hub. Bei der in den Fig. 1 und 2 dargestellten Ausführungsform kann der Hub durch einen über das Ventil vorstehenden, nachstellbaren Zapfen 17 geändert werden. Nach Fig. 3 ist eine Rohrspindel 18 vorgesehen, durch die eine Stange 19 geführt ist, die am oberen Ende durch eine Mutter 20 eingestellt werden kann. Die am unteren Ende angeordnete Feder 21 drückt die Stange soweit als möglich in die Bahn des
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Regelungsventil 8 kann nach Fig. 4 auch durch ein Schwimmerventil 22 ersetzt werden.
Bei der Ausführungsform der Pumpe nach Fig. 5 ist der Kolben 23 geschlossen und eine Umleitung 24 angeordnet, die das obere mit dem unteren Ende des Pumpenzylinders verbindet. In dieser Umleitung ist ein nach oben öffnendes, federndes Ventilez angeordnet, das dieselbe Wirkungsweise besitzt und genau so arbeitet wie das Regelungsventil 8 der früher beschriebenen Ausführungsform..
PATENT-ANSPRÜCHE : 1. Flüssigkeitspumpe mit veränderbarer Fördermenge entsprechend der Kolben- ge. schwindigkeit, dadurch gekennzeichnet, dass ausser dem Saug-und Druckventil ein Regelungsventil vorgesehen ist, das für gewöhnlich während des Förderhubes geschlossen ist und den Rücklauf der Flüssigkeit in den Saugraum verhindert. hingegen sich selbsttätig üffnet, wenn die Kolbengeschwindigkeit einen vorher bestimmten Mindestwert unterschreitet und daher den Kolben vom Flüssigkeitsdruck entlastet, so dass die Pumpe leer läuft.
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If the spring is relatively short, the valve will settle down more quickly and thereby apply the load to the wheel more quickly than with a larger stroke. In the embodiment shown in FIGS. 1 and 2, the stroke can be changed by means of an adjustable pin 17 protruding over the valve. According to FIG. 3, a pipe spindle 18 is provided through which a rod 19 is guided, which can be adjusted by a nut 20 at the upper end. The spring 21 arranged at the lower end pushes the rod as far as possible into the path of the
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Control valve 8 can also be replaced by a float valve 22 according to FIG.
In the embodiment of the pump according to FIG. 5, the piston 23 is closed and a bypass 24 is arranged which connects the upper and lower end of the pump cylinder. In this diversion, an upwardly opening, resilient valve is arranged, which has the same mode of operation and works exactly like the control valve 8 of the embodiment described earlier.
PATENT CLAIMS: 1. Liquid pump with variable delivery rate according to the piston diameter. speed, characterized in that in addition to the suction and pressure valve, a control valve is provided which is usually closed during the delivery stroke and prevents the liquid from flowing back into the suction space. on the other hand, it opens automatically when the piston speed falls below a predetermined minimum value and therefore relieves the piston of the fluid pressure, so that the pump runs empty.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT57603T | 1910-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT57603B true AT57603B (en) | 1913-02-10 |
Family
ID=3579334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT57603D AT57603B (en) | 1910-11-17 | 1910-11-17 | Liquid pump with variable delivery rate. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT57603B (en) |
-
1910
- 1910-11-17 AT AT57603D patent/AT57603B/en active
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