DE44759C - Material vapor pump with high and low pressure cylinder - Google Patents

Description

IMPERIAL

PATENT OFFICE

CLASS S9: Pumps.

The present invention relates to a compound vapor pump, in which both the high-pressure and the low-pressure cylinder have a single-acting pump! plunger is associated. In addition: is between these two plungers respectively. the two steam pistons created an inevitable connection by means of a balancer, the j kind, that when the piston of the high pressure | cylinders with its plunger a movement [ to the right, that of the low-pressure cylinder makes one to the left, and; vice versa. |

The control of this pump consists of a sleeve valve, from which the pump plunger connecting balance is moved, and a main slide, which is moved by its own steam piston and the steam! causes distribution for both cylinders at the same time. Furthermore, by one in the valve body movably mounted shaft connected to both slides creates an inevitable connection between them, so that undisturbed functioning is always assured.

In the accompanying drawing, sheet I, Fig. Ι shows a side view of such a pump dar; Fig. 2 gives a vertical section through the two steam cylinders and the control elements again, and FIGS. 3 and 4 are longitudinal sections through the high pressure cylinder respectively. Low pressure cylinder. Fig. 5 finally represents the auxiliary slide in view and partial longitudinal section.

A denotes the high pressure cylinder and B the low pressure cylinder; A ¹ is a pump plunger that is permanently connected to the high-pressure piston and B ^{1 is} a second pump plunger that is permanently coupled to the low-pressure piston. Both pump plungers are positively connected to each other by the balancer D, which is rotatably mounted on the frame. For this purpose, each plunger is provided with a slot, which can be easily adjusted by means of a wedge arrangement or the like, in which slots the ends of the balancer D engage, so that as a result the two plungers always move in opposite directions, i.e. when the one executes its stroke to the right, the other makes its stroke to the left, and vice versa.

The pump is first controlled by an auxiliary slide h, FIGS. 5 and 2, which is moved by a short lever g mounted in the arm f of the frame and the latter in turn by a larger lever k located on the same axis. The drive takes place here from the balancer D by means of a handlebar 2 equipped with lugs or the like, which the latter transmits the movement to the lever k; this in turn moves the lever g and the said slide h.

As the slide h executes its movements in this way, it lets steam through the channels χ and x ^l alternately on and / or. exit and thereby causes, as a result of the connection of the steam channels χ and χ ⁱ with the cylinders belonging to the small steam pistons y and y ^{x of} the main slide, a sudden reversal of this slide H, which causes the change in the supply of fresh steam for the high pressure cylinder and the exhaust steam of the high pressure cylinder A is passed to the low pressure cylinder B. This main slide valve H is a combination of three shell slide valves which, by means of suitable channel arrangements,

Claims (2)

mentioned vapor distribution enables. First of all, the two small mussels m and m 'for the high-pressure cylinder A are arranged on one side of the slide. which the steam in the direction of the arrows. 3 and 1 let in and out, the steam used in A reaching through the hole r into a shallow channel lying above m and m ^{1 in} order to be removed from the third shell on the other side of the slide H m "to be distributed in the low-pressure cylinder B , Figs. 4 and 1. Here, too, the steam takes the path indicated by the pieces. The two slides h and H are supported by a shaft that is movably mounted in the sliding case housing >! ' by means of arms provided thereon in connection with one another. The former is coupled to the shaft by the arms tt , so that when /; the shaft is rotated, while the larger arms t ¹ £ ' allow the slide H by means of forks that allow a certain amount of play. W ⁷ he seen, there is provided a certain zwangläufige compound under the two sliders by this arrangement, the otherwise continuous for loosely slide H DAF at any clamping but from that of h always entrained shaft w is moved and as a regelmäfsiges Function Irish take place must, . The aforementioned three-mussel slide works Can also be used comfortably with double-compound Siof steam pumps without auxiliary slides. Such a double pump with this slide is shown in blue II of the accompanying drawing. Fig. 6 is a side view of the same, Fig. 7 of the outline. Fig. 8 is a cross section and Fig. 0 is a front view; Fig. 10 and ι ι are sections through the high pressure cylinder and Fig. Ι 2 is a bottom view of the slide H. The arrangement of the steam cylinder of this pump is chosen so that the pressurized steam for both high pressure cylinders enters the valve body connected by a channel / 'through a nozzle. Fig. 8. A common outlet duct p ^{] is also provided} for the exhaust steam coming from the low-pressure cylinders. The movement of the two pressure distribution slides H intended for the four cylinders takes place directly from the balancers D, Fig. O., each connecting two pump plungers. ^; that each balancer controls the slide of the associated neighboring pump. ^{For this purpose, the horizontal W T} ellen q and q 'are stored between the piston rods and just in front of the stuffing boxes of the steam piston, each of which is a slide rod. Bring the slide with the associated balancer of the neighboring pump in a fixed relationship by means of a lever system, FIG. Steam pistons hit one another in such a way that when one piston is in its central position, the other has reached the setting. This position requires that the connection of the slide with the balancers by means of the lever system must be offset, that is, the points of application of the lever system in relation to the axis of rotation of the two balancers lie on different sides of the same, Fig. 6. that with the alternating control of the two pumps and the assumed light construction of the slide, an irregularity can never occur in the course of the same, because when one piston has reached the end, the reversal of the slide of the neighboring pump begins immediately. Pa τ ε ν τ - A ν s i> r ϋ chi :: ι. In twin Stofsdamptpumps with high and low pressure cylinder the arrangement of a movably arranged balance (DJ) on the frame of the pump, the two linden of which engages in the slots of the pump plunger (04 'and B ¹ J , respectively, which are in direct and fixed connection with a steam piston each) , in connection with a control consisting of an envelope slide (h) and a main slide (H. which the latter is made up of three combined shell slides) in an inevitable connection with this by an oscillating shaft (w) mounted in the slide box and equipped with arms of unequal length of which two effect the steam distribution for the high pressure cylinder and the third effect the steam distribution for the low pressure cylinder. 2. In the case of double twin vapor pumps with two pairs of high-pressure and low-pressure valves, the arrangement of balancers (DJs movably arranged on the frame of the pump, which engage with their ends in the pump plunger and thus bring about an inevitable connection of the same, in conjunction with the balancers of these balancers (DJ alternately direct moving valves (H '. Which the latter are composed of three combined shell valves and of which two shell valves each cause the steam distribution for the high-pressure valve and a third one for the low-pressure valve. For this purpose 2 sheets of drawings.