US2097629A - Pump - Google Patents

Description

Nov. 2, 1937. G. A. LOWREY PUMP Filed March 24, 1954 Patented Nov. 2, 1937 UNITED STATES PATENT OFFICE PULIP Application March 24, 1934, Serial No. 717,251

'lclaim.

This invention relates to a pump.

An object of the invention is to' provide in a pump, a novel type of traveling valve mechanism comprising a tubular body having a valve for controlling the flow of fluid through the body with novel means for imparting a whirling movement to the fluid whereby the valve may be gradually rotated during its operation and a partial rotation back and forth imparted to the body as 0 the valve mechanism is reciprocated in the working barrel.

Another object of the invention is to providein a traveling valve mechanism, a valve actuator the valve, to limit such opening movement and to guide the valve during the closing movement thereof.

The subject matter of this application forms a continuation in part, of the abandoned applica- With the above and other objects in view the invention has particular relation to certain novel features of construction, operation, and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawing, wherein:

Figure 1 shows a side view of the traveling valve mechanism shown partly in section.

Figure 2 shows a cross sectional view taken on the line 2--2 of Figure 1. I

Figure 3 shows a cross sectional view taken on the line 33 of Figure 1, and

Figure 4 shows a vertical sectional view of the pump working barrel showing the standing valve and the traveling valve mechanism mounted thereon.

In the drawing the numeral I designates a pump working barrel at the lower end of which there is mounted the upwardly opening standing valve 2. Above this standing valve the traveling valve mechanism is located in the working barrel. This traveling valve mechanism comprises a tubular body 3, which preferably has an intermediate enlarged section 4 with upper and lower series of packing rings 5, 6 above and beneath said enlarged section 4. However any suitable type of packing rings may be employed. -Screwed on to the upper end. of the body 3 there is a tubular nipple I and a valve cage 8 is connected on to the nipple. Clamped on tothe upper end of the nipple I there is an annular valve seat 9 which is controlled by the upwardly opening ball valve II) which is confined by said cage. The upper end arranged to cushion the opening movement of tion on Pump, filed August 27, 1932, under Serial of the cage 8 is reduced and outwardly threaded,

forming 'a connection for the sucker rod II through which the traveling valve mechanism may be reciprocated.

Fitted within the cage 8 above the valve I0 there is a valve actuator I2 which is approximately circular as shown in Figure 2 and whose under side is concave to fit the valve Ill. The under side oi the actuator has the cross channels I3 which admit fluid above the valve so as to prevent the formation of a vacuum between the valve and actuator.

- The reduced upper end of the cage has a cylinder I4 and the actuator I2 has an upstanding stem I5 whose upper end is reduced and fitted loosely in said cylinder. The reduction of the upper end of the stem forms the annular stop I6 to limit the upward movement of the actuator. Surrounding the stem I5 and interposed between the valve actuator I2 and the lower end of the cylinder I4 there is a coil spring I 1.

Within the lower end of the body 3 there is the spiraled vane I8 as shown in Figures 1 and 3. Upon down stroke the valve 2 will be closed and the fluid above it will pass upwardly through the body 3 and will lift the valve II). The stem I5 will be cushioned in its upward movement by the fluid in the cylinder I4 to the end that the valve II) will be lifted only the required distance to accommodate the required fluid being pumped. Upon upstroke of the valve mechanism the actuator I2 assisted by the spring I I will guide the valve In directly and quickly onto its seat so that there will be no back flow or leakage of the fluid after it has once passed above the valve Ill.

The fluid flowing upwardly through the body 3 will have a whirling motion imparted to it by the vane I8 and this will cause a partial turning movement of the valve I0 with each upward movement of the valve, causing the valve to wear uniformly and washing away any sand that might collect about the valve and seat.

The resistance of the fluid through which the vane i8 travels will also cause a partial turning movement of the traveling valve mechanism as said valve mechanism moves downward, placing the sucker rod I I under a tortional strain and upon upward movement of the traveling valve mechanism the torsion of the sucker rod will cause the traveling valve mechanism to partially rotate in the other direction so that said traveling valve mechanism will partially rotate back and forth as said traveling valve mechanism is reciprocated thus causing a uniform wear on the working barrel and preventing the scoring thereof.

The drawing and description disclose what is valve mechanism in the barrel comprising an elongated tubular body having an approximately uniform liquid passageway therethrough, a sucker rod to which the body is attached and by which the body may be reciprocated, an .upwardly opening valve in the upper end of the body controlling the flow of liquid upwardly through the body, guide means for controlling said valve comprising aplunger, the upper end of said plunger being reduced, in diameter, and the lower end of which is formed to fit over said valve, a channel across said lower end, a coil spring about said plunger, a cylinder in the upper end of the traveling valve in which the upper end of the plunger works, a stop on said plunger, limiting the upward movement thereof a plurality of inlets at the lower end of said passageway forming a vane having spiralied walls and forming the only obstruction in the passageway.

GEORGE A. LOWREY.

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