US 1031289 A
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Description (OCR text may contain errors)
WQ E. PEDLEY.
JET PUMP. APPLICATION FILED IBBJS; 1911. l
Patented July 2, 1912.
. 29 Inventor:
I a .Zllt'nesse UNITED STATES' PATENT OFFICE.
WILLIAM E. PEDLEY, OF RIVERSIDE, CALIFORNIA. j
Specication of Letters Patent.
.appiieanonmed February 2s, 1911. serial No. 610,199.
' trained current is not drawn in, in the direction yin which the propelling or driving ,Y stream flows from the nozzle.
The object of this invention is to produce a pump of improved form in whichlthe entrained stream is brought in so as to flow in the direction which the jet from the nozzle is projected.
In the 'drawing forming a part of the annexed speciication, Figure 1 is a vertical section through a jet pump constructed in accordance-'with my invention and showing a single nozzle. `In this form of the pump the entrained current is brought on an ineline to the driving jet. Fig. 2 is a view similar to Fig. 1 but showing' a form `of `pump in which the nozzle projects directly into the entrained stream so that the direction of the entrained stream is not changed. Fig'. 2a`is a section on vthe line 2**--2l of Fig. 2. Fig. 3 is a vertical section showing the form of pump .adapted to be used in a deep tubular well and in which 'a plurality of nozzles are employed which entrain an upward current through the pipe and these nozzles project in the ysame direction 1 n which the entrained water flows. Fig. 4 1s a horizontal section taken on the line 4-4 of Fig( 3.
Referring more particularly t0 the parts, 5 represents the main-casing of the pump 'as shown in Fig. 1 and the casing has a vertical leg or barrel 6 on the side of which an inclined inlet 7 is formed. Within the barrel 6 I provide a bushing 8 which i's thread'-` ed internally to receive the nozzle 9, said nozzle having a conical bore y10 therethrough, the slot of which converges upwardly.
To' he upper end of the barrel `5 the lower end of the delivery pipe 10 is attached and in this pipe. a thimble 11 is mounted having a double conical bore, the middle portion of 4t-he nose 17 of the nozzle.
Afrom a tubular well. In this formo the bore being contracted lo form a narrow throat 11. To the lower end of the barrel '5 the elbow 12 is attached by which the jet is brought into lthe pump and the pipe connection 13 is attached to the inlet. 7 for bringing in the current which is raised by thc operation of the jet.
In the operation of this pump, Water under pressure flows in from the elbow 12 and up through the nozzle 9 so that this jet is projected upwardly through the thimble 11, it being understood that the thimble and the nozzle 9 are in alinement. This water passing up through the thimble ent-rains a Patented July 2, 1912.
stream of water through the inlet 7 and this water is carried with the jet and raised. On account of the threaded bushing 8 it is possible to adjust the nozzle 9 with respect to the thimble so that where the pressure and velocity of the jet is small, the nozzle may be adjusted to a point very near the thimble and vice-versa.
In the form`of the invention shown in Fig. 2, 14 represents the casing which is of elongated globe form and having a hub 15 at one side for attachin the jet nozzle 16. This jet nozzle extends into the interior of the globe casing 14 and its nose 17 projects longitudinally with the casing and on the longitudinal axis thereof. In the up er end of the casing the lower end of the elivery pipe 18 seats and this delivery pipe is provided With. a thimble 19' similar to the thimble 11. As indicated in Fig. 21 this nozzle 16 is fiattened in a ,plane of the longitudinal axis of the pump so that it offers ve little obstruction to the entrained current o water which flows up from the inlet pipe 20 which is attached .to the lower end of the casing 14. To the nozzle 16 is attached a supply y pipe 2 1 which brings in water under consi erable pressure which flows as a jet from 'lowered so as to adjust the relative distance between the said nozzle and the said throat to suit varying pressures, said throat being secured in any desired position by the set screws.
In Fig. 3 I show a modified form of the invention which is adapted for raising water fthe I invention I'provide an inner casing 22 and' said nozzle ring havin a plurality of openings or ducts 26 in w ich a plurality of U shaped nozzles 27 are attached, said nozzles being formed of bent tubes havin threaded Shanks 28 which screw into the y ower ends of the ducts 26, which are threaded to receive the Shanks as`will be readily understood. These nozzles are arrangedv so that the project inwardly in a radial direction an their e'nds 29 turn upwardly near the central axis on the inner casing and at a slight distance below the lower end -of the nozzle ring., Within the in ner casingl `22 just above the lower end thereof I provide a thimble 30 which is similar in form to the thimble 11 having a doubleconical or convex bore 31 with a. reduced throat 32 at its' ymiddle point through which the jets issue from the nozzle and the entrained water passes upwardly. With this form of the invention the water under pressure comes down the.annular space 33 between the in ner casing and the outer casing and issues from the nozzles 27 `in the form of avplurality of upwardly directed jets which entrain the water and drawit upwardly between the nozzles and through the thimble.
The. plurality of nozzles shown in Fig. 3 may be so set that all of the streams converge toward the narrow point in the throat 32, or the nozzles may be set on the points o'fa hexagon as indicated in Fig. 4, but so -22, .the annular space 33 discharge.' In this case the nozzles are of course screwed 1nto awplug, whichscrews v i 1n that case an additional nozzle may arranged as to throw parallel streamsail1) used and set at the lcentral point of said hexagon, so that the oup of nozzles become moreevenly groupe and arranged. 'Instead of bringin the ,water power downwardly through t e annular space 33 it will be readily understood that it may be driven downwardly throu h the central pi e ing used for the into the annular ring and' are. turned outwardly or in the reverse position from that indicated in Fig. 3 and the contracted throats would then be arranged in the annular ringv between the two pipes. In this instance there may be separate throats arranged for each nozzle, or two or `more nozzles may be directed to one thereof, which is then rmed as if two or more throats had been red 'in the annular ring and the intervenin portion then cut out so as to afford a `curved contracted. slot, the vertical Section of such a slot, along the radial lines of the tube pipes, being the same as the vertical section through the center line ofthe ordinary contracting throat. In the samemanner two or more nozzles "or a single nozzlehaving. av curved slot shape discharge outlet may be used and adjusted to discharge through each one of the curved slot shaped throats. Such a form may be .used in an ordinary tubular well, using the well casing as the outer of the two pipes.
What I claim is i l. A jet pump having a plurality of bent nozzles adapted to converge streams of liquid to entrain the pumped liquid in a direct line through athroat, a thimble mount-A ed in the pump and formed with said throat, the .said throat being arranged -at such a distance from the nozzles as to receive and converge streams therefrom.
2. Al jet pump formed with spaced casings and having 'a ring mounted between them formed with liquid receiving assages, a series of return nozzles-mounte in said 'passages and adapted to direct pumping streams into the inner pipe, the said nozzles being adapted to entrain the water in an opposite direction to the `power waiter in performing .the pumping operation.
.3. A jet 'pum' provided with a casing spaced around t e pump tube,'a.space for power water bein .arranged between them, a series of curve nozzles extendin from said s ace and adapted 'to `entrain the pumpe liquid in an opposite direction to the power liquid within thesaid pump tube, the said nozzles having elongated oval discharge openings and' an adjustable-'throat piece arranged within the pump tube at a proper distance from the nozzles to receive the .entraining liquids therefrolr.
In witness that I- claim the foregoing I have hereunto subscribed my name this 30th day of January, 1911.
WILLIAM E. PEDLEY.