US1172555A - Centrifugal, turbine, or similar pump. - Google Patents

Description

F.-- RAY.V cENTBjFuAL TURBINEOR SIMILAR PUMP. Y

*I APPLlCATiON FILED `SEIT. 24. `i912.:v 1,172,555;

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Pumps UNITED sTATns PATENT onnron.

FREDERICK-BAY, O' SHORT HILLS, NEW JERSEY, ASSIGNOR TO ALBERGER PUMPAND CONDENSER COMPANY, OF'NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CENTRIFUGAL, TURABINE, OR SIMILAR PUMP.

To all whom it may concern Be it known that I, FREDERron RAY, a citi' zen of the United States, residing at Short Hills, in. the county -of Essex .and State of New Jersey, have invented certain new and useful Improvements. in Centrifugal, Tur# or Similar Pumps, of which the following isa specification, referencebeing had therein to the accompanying drawing.

My present invention relates to improve.- ments in centrifugal, turbine or similar and more particularly to that class of such pumps wherein the air and produce-a vacuum, and where a rotary impeller is employed in lcombination with an inlet for air, gas or vapor, and inlet for water or other liquid, all arranged so that the channels between the vanes-or blades of the impeller will each receive air` and water alternately, so that in each of said channels therewill be a .succession of air pistons and water pistons that will be driven by centrifugal force outwardly into the casing of the pump where the discharge will be made to the atmosphere against atmospheric or higher pressure.

The object of the invention is to increase the range of the practical application of centrifugal, turbine or similar pumps of the particular class just mentioned; and it consists essentially in a centrifugal turbine. or

Y similarn pump having an impellerx'or immultiple arrangement or a plurality of fluid 40 Snels, and whereby the water is caused to expellers provided with a multiple arrangement or--a plurality of series' of vanes or blades, in each of whose channels there is a succession of air and water pistons, a'nd a injecting nozzles for deliveringquantities or plugs of water to the several impeller chanpose a greater surface to the air so as to cause a commingling or mixing ofthe air and water to a certain extent in addition to the formation of the succession of water and air plugs; and it also embraces a centrifugal, turbine or similar pump for pumping water in a continuous streaml into the said fluidinjecting nozzles, together with inlet means for the air, so that air plugs will enter the impellerchannels between the injected water plugs; and the invention also comprises numerous details andi peculiarities in theA Specification of Letters Patent.

object is topump anV Patented Feb. 22, 191e.

Application led September 24, 1912. a Serial No. 722,007.

construction, arrangement and combination of the various parts, substantially as will be `hereinafter described and claimed.

l In the accompanying drawing illustrating my inventiont-Figure 1 is a longitudinal sectlon of my improved centrifugal, turbine or similar pump. Fig. 2 is a partial or broken plan view of the same with the air inlet shown in section. Fig. 3 is a cross section of one series of impeller vanes or blades'. and one series ofv water injecting nozzles alined with said vanes or blades.

Similar characters of reference designate corresponding parts throughout the dierent figuresof the drawing.

'l denotes the main caslng of a centrifugal,

lturbineror similar pump, the same being of the usual form and provided .with a disy chargepassage 2 having an exit to the atmosphere at 3, through which a mixture of air and water from the interior ofthe pump finds passage to the atmosphere against atmospheric or higher pressure. In the casing-1 isan impeller 4:- of the closed type having a hub 5 which isirmly secured tothe main engine shaft 6. The impeller 4: is provided with ajmultiple arrangement of series of Vanes or blades 7, between'which vanes or blades are the curved passages 8. There may obviously be any number of these series of`vanes or blades. ample of mechanism shown in the drawing I have indicated three such series, and it will be'observed that the inner ends of the channels 8 of each series open into the interior of a sleeve or cylinder 9 which carries the hub 5, while the outer end of each channel 8 in each one of the series of channels discharges directly into'the discharge passage 2. I

Within the sleeve or cylinder 9 ofthe impeller. 4 is a stationary cylinder or barrel 13 surrounding shaft 6 which rotates within it. This barrel 13 is provided with a series of openings in which are fitted short cylinders or tubes 12 that serve as nozzles and that lie in the same plane as the inner ends of the impeller channels 8. In the example of mechanism herein portrayed I have illustrated three series of nozzles 12 lying in three parallel vertical planes and situated.`

In the particular ex-v gli on the main pump shaft 6, which impeller` discharges into the curved passages 17 and then through the passages between the vanes or blades 18 to the interior of the barrel or cylinder 13, whence the water passes, as already stated, through the nozzles 12. As the latter nozzles are stationary while the impeller 4c is rotating it will be obvious that the water will be caught by and projected into the channels S whenever said channels 8 pass the open ends of said nozzles 12, and

thus there will be a succession of water-plugs or pistons delivered into said channels. The provision of a multiplicity of nozzles arranged in several series has the' effect of eX- posing a large surface of water to the air to absorb the same in consequence of the injector-like action of the nozzles.

The air which is to be pumped enters the pump through the air inlet 11, coming from any point from which it is desired to draw air, and fills the interior of the chamber 19 and also the interior of the sleeve or cylinder 9 of the impeller 4, and thus fills the space around the nozzle-carrying barrel 13 and around the nozzles 12 so that it can readily pass into the interior of the channels 8through the inner open ends of said channels. The air will find its way into the channels 8 whenever water is not entering said channels, and, therefore, since the delivery of the water to the channels is broken or interrupted whenever a blade 7 passes the open end of one of the nozzles 12 the air will at this moment have an opportunity to enter the channel, therefore each channell will be alternately ente-red by water and air, the water being injected by the pumping pressure from the centrifugal .pump into the passages in such a way as to form 'successive moving plugs of fluid or liquid pistons between which are caught certain quantities of air in the manner explained, and thus there are air pistons between the water plugs. It

. will be obvious moreover with respect to the way in which the air nds its way into the interior of the device that the outwardly moving water plugs vcreate a reduced pres sure within the chamber 19 into which air is forced by atmospheric pressure.

The main pump shaft 6 is supported in suitable bearingsl 24 of any preferred cona multiple arrangement of outlets arranged in parallel struction. On the shaft 10 for the application of a belting to drive the pump, The impelle'r 4 is kept air tight preferably by means of water seals 23 which receive water from any suitable source and deliver it to points on opposite sides of the groups of impeller vanes and A`around the central sleeve or cylinder 9 as shown in lFig. 1. Further the shaft 6 has stuiiing boxes 2O and 21 of any desired or preferred form, each being provided with a water seal In the operation of my improved pump the multiple arrangement of nozzles in several series'operating with an injector-like action serves to oifer a large surface of water 6 is the belt pulley to the air, and draws the air in and mixes it with the water; so that not only are there formed water plugs and air plugs alternately in the several channels, but also there is this additional mixing of the air with the water, and thus the air is effectively pumped and a vacuum produced.

So far as the structural details are concerned, it is obvious that they may vary'1l i widely, and I reserve the liberty of making such changes maybe found necessary or desirable in order to promote the best results.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is :H

in the exact construction as 1.`I`n a centrifugal, turbine or similarpump, the combination of a main casing having a single discharge passage a rotary impeller having a plurality of radial series of channels, a stationary water passage hav ing a plurality of radial series of outlets arranged in parallel vertical planes corresponding inA number with and situated opposite to the inner ends of the said series of channels, which water outlets inject the water into the inner ends of the channels intermittently, nism for drawingwater from a suction and delivering it into the water passage whence it emerges through the series of means including `a sleeve attached to the ro tary impeller and an air chamber in` commu nication with said sleeve for allowing air to enter the inner ends of the series of channels alternately with the admission of water plugs, whereby each channel is filled with la succession of lwater plugs and alternate quantities of air.

2.' In a centrifugal or like pump, the combination of a main casing having a single discharge passage a rotary impeller, having series of radial channels, a stationary water supply having a multiple arrangement of series of radial vertical planes outlets, and.-

ios.

corresponding in number with and situated opposite to the series of impeller channels, said outlets delivering water with an injector-lilre action into the inner ends of the surface to the air for the purpose of drawlng in the air and mixing it with'the water, and means including a sleeve attached to the rotary impeller and an air chamber 1n oommunication with said sleeve for allowing air' to enter the inner ends of the channels of the impeller between the water plugs which are formed in said channels, whereby each lo channel is filled with a succession of water and air pistons, together with centrifugal pumping mechanism `for drawing water from a suction and delivering 1t into the stationary water passage.

In testimony whereof I afiix my signature 15` in the presence of two witnesses.

FREDERICK RAY. Witnesses:

JEANNETTE STORK, L. S. PURINE.

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