DE149524C

DE149524C -

Info

Publication number: DE149524C
Application number: DENDAT149524D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

KLASSEGREAT

Bei der durch das Haupt-Patent 135485 geschützten Verteilungsvorrichtung für Pumpen wird der Abschluß der während einer Druckperiode der Pumpe zu schließenden Ventile durch Federn oder Gewichte bewirkt. Bei größeren Druckwiderständen, z. B. durch lange Leitungen zu entfernt stehenden Apparaten, ist ein vollkommen dichter Abschluß mit diesen einfachen Hilfsmitteln nur sehr schwer zu erreichen. Für eine genaue Verteilung und gute Wirkung des Ventils ist jedoch ein möglichst dichter Verschluß der während einer Druckperiode der Pumpe nicht zu speisenden Leitungen von allergrößter Bedeutung. In the case of the distribution device for pumps protected by the main patent 135485 becomes the closure of the valves to be closed during a pressure period of the pump caused by springs or weights. With greater pressure resistance, e.g. B. through long lines to distant devices, it is very difficult to achieve a completely tight seal with these simple tools. For an accurate distribution and the valve does not work as tightly as possible during a pressure period of the pump of the utmost importance to the lines to be fed.

Diesem Übelstande hilft eine Ausführungsform nach beiliegender Zeichnung vollständig ab, bei welcher die Kugeln der entsprechenden Ventile während des Drückens der Pumpe durch auf der Steuerwelle sitzende Druckscheiben unverrückbar fest auf ihre Sitze gedrückt werden.An embodiment according to the accompanying drawing completely helps this drawback starting at which the balls of the corresponding valves while pressing the pump Pressed immovably firmly on their seats by pressure disks sitting on the control shaft will.

Die Fig. 2 bis 5 stellen entsprechend den Fig. 3 bis 6 des Haupt - Patentes die gleichzeitigen Stellungen der Steuerscheiben der einzelnen Ventile eines vierfachen Verteilungsventils für eine Verteilung im Verhältnis 1:1:2:4 dar und lassen zugleich den Einfluß dieser Stellungen auf die Ventilkugeln der einzelnen Ventile erkennen.FIGS. 2 to 5 represent the simultaneous ones corresponding to FIGS. 3 to 6 of the main patent Positions of the control disks of the individual valves of a four-way distribution valve for a distribution in relation 1: 1: 2: 4 and at the same time leave the influence of these positions on the valve balls recognize the individual valves.

Fig. ι ist ein Schnitt senkrecht zu dem in Fig. 2 dargestellten Ventil, wobei das Stangenauge i in Richtung A B geschnitten ist.Fig. Ι is a section perpendicular to the valve shown in Fig. 2, wherein the rod eye i is cut in the direction AB .

g gg g

Die Fig. 6 und 7 zeigen, die Stellungen6 and 7 show the positions

der bezw. Fig. 5the respectively Fig. 5

Steuerscheiben der Ventile .nach Fig. 2 unmittelbar vor dem Niederdrücken bezw. Anheben der Stangenaugen.Control disks of the valves .according to Fig. 2 immediately before the depression respectively Lifting the rod eyes.

Bei dem vorliegenden Ausführungsbeispiel wird die gemeinschaftliche Welle k mittels des auf ihr sitzenden achtteiligen Sperrades bei jedem Hochgang des Pumpenkolbens, also beim Saugen der Pumpe durch die an der Kolbenstange schwingend befestigte Sperrklinke in Richtung der in den Fig. 2 bis 7 angedeuteten Pfeile um eine Achtelumdrehung gedreht. Die gleiche Achteldrehung machen bei jedem Hub der Pumpe die auf der Welle sitzenden Hubscheiben I₁ Z₂ Z₃ Z₄ und die daneben ebenfalls auf der Welle befestigten Druckscheiben S₁ S₂ S₃ S₄, wobei die Hubscheiben der Reihe nach abwechselnd in dem gewünschten Verteilungsverhältnis die entsprechenden Stangenaugen an ihrer oberen Innenfläche anheben und dadurch jedesmal die Kugel eines Ventils, freigeben, während gleichzeitig die Druckscheiben die übrigen Stangenaugen an ihrer unteren Innenfläche niederdrücken, wodurch die übrigen drei Kugeln fest auf ihren Sitz gedrückt werden. Während der auf die Umstellung der ScheibenIn the present embodiment, the common shaft k by means of the eight-part ratchet wheel seated on it is turned one eighth of a turn in the direction of the arrows indicated in FIGS turned. The same eighth turn are made by the lifting disks I ₁ Z ₂ Z ₃ Z ₄ on the shaft and the pressure disks S ₁ S ₂ S ₃ S ₄ , which are also attached to the shaft, with each stroke of the pump desired distribution ratio raise the corresponding rod eyes on their upper inner surface and thereby release the ball of a valve each time, while at the same time the pressure washers depress the remaining rod eyes on their lower inner surface, whereby the remaining three balls are firmly pressed onto their seat. During the on moving the discs

Claims

The following pressure period of the pump will always have a valve open, while all the others are tightly closed. In the selected embodiment, the ball of the first valve (Fig. 2) is released during a full revolution of the shaft k by cam plate Z during a piston drop and pressed down on its seat by pressure plate S1 during the seven subsequent piston drops of the pump. In the same way, the ball of the second valve (Fig. 3) is influenced by the disks Z2 and S2. The third valve twice (Fig. 4) is released by disk Z3 and depressed six times by disk s3. While the fourth valve (Fig. 5) is released four times by disk Z4 and closed four times by disk S4. In the drawing, that position of the shaft is drawn in which the first valve is released while the valves (Fig. 3, 4 and 5) are closed. With a further eighth of a turn of the shaft, the valve Fig. 2 would be closed and the valve Fig. 5 would be released. Fig. 6 and 7 illustrate this change in the influence of the Veritilkugeln by the Hub- respectively. Thrust washers. The shape of these pressure disks and the shape of the inner surfaces of the rod eyes is designed so that when the rod eye begins to be pressed down by the pressure disk S1 (Fig. 6), the lifting disk Z1 has completely released the eye for the downward movement, while vice versa at the beginning of the lifting of the Rod eye through the lifting disc Z4 (Fig. 7) the pressure disc s4 has released the eye for the upward movement. With this embodiment, the valves are released and closed by reliable, inevitable movements "of the relevant parts, which ensures an exact distribution. To compensate for inaccuracies in manufacture during execution or the risk of breakage when inevitable closing To eliminate the valves, it is advisable to connect a correspondingly strong leaf spring with less mobility between the pressure thumb and the lower inner surface of the rod eyes, so that after a correspondingly high pressure is exceeded, there is little flexibility. Patent-A ν Proverbs:

1. Distribution device for pumps according to patent 135485, characterized in that that the valves are positively held on their seats.

2. Embodiment of the device according to claim I, characterized in that the ball valves closed during the pressure period of the pump ff) are pressed immovably firmly onto their seats by special pressure disks sitting on the control shaft (k) ^ s ₂ S ₃ S ₁ ), for the purpose of achieving a particularly tight seal on the lines not to be fed during the printing period.

3. Embodiment of the device according to claim I, characterized in that that between the pressure thumb and the lower inner surface of the rod eyes leaf springs be switched on by less mobility to avoid the danger that occurs when the valve is inevitably closed to eliminate a break.

1 sheet of drawings.