US1109593A - Ejector. - Google Patents

Description

P, J. OLEARY.

v EJEGTOR.

APPLICATION FILED Nov. z2, 191'2.

l, l 09,593. Patented sept. 1, 1914.

@vm-IR @Mam UNITED sTATEs PATENT oEEIcE.

FRANK J. OLEARY, or DETRoIT, MICHIGAN', AssI'GNon lTo PENEERTHY INJECTOR oo.,

or DETROIT, MICHIGAN, A CORPORATION or MICHIGAN. l

EJEoToIt To all 'whom it may concern: f

Be it known that I, FRANK J. OLmnr, a citizen of the United States of. America, residing at D etroit, in the county of lVayne and State of Michigan, haveinvented certain new and useful Improvements in Ejectors, of whichthe following is a specifica--A` tion, reference being4 had therein to the ac-` companying drawings.

This invention relates to improvements in lifting ejectors and its object is'to increase, by simple and-eliicient means, the discharge per unit of time, of ejectors constructed in an old and well known manner; the invention consisting in the matters hereinafter set forth and more particularly pointed out in the claim reference being had to the accompanying drawing in which,

Figure l isa vertical longitudinal section through an ejector embodying the invention; Fig. 2 is a transverse section of the same on the line 2-2of Fig. l; andFig. 3 is an elevation of the combining tube detached.

As shown in thel drawing l represents a suitable casing having a water inlet 2 at its lower side into which is screwed a pipe forming a conduit in lwhich the water is raised by suction in the pipe 2. Coupled to .one end of' the casing is a steam pipe 3 and a nozzle -L projects into the casing from the end of the pipe to direct a jet of steam into the flaring open end 5 of a combining tube 6 which is secured in the opposite end of the casing with its flaring end adjacent to the end of the nozzle, v said tube being screwed or otherwise secured in the end of the casing and arranged in the usual manner. #ill of the foregoing described parts and their arrangement are Old and well known and this invention consists in forming the combining tubev with one or more longitudi nal slits -7 in its side walls within the body of the casing, said slits extendingfrom near the flaring end of the tube adjacent to the nozzle to near the end of the casing. l

In operating the device a steam pressure is turned on through. the'pipe 3 and a' jet of steam of very highvelocity is projected by the nozzlefl into the open endofA the combining tube 5. The steam passing through and out of the end of the combining tube with great rapidity will at once Specification of VLetters -Patent.

Application led November 22, 1912'. Serial No. 732,816.

.through the tube.

Patented sept; 1,1914.

Ycause a vacuum or` partial Vacuum in the Vand out with the steam.- As soon as the vstream of water is established the jet of 'steam ente-Ijngthis stream combines therewith inthe combining tube and is condensed. By reasonjof the condensation of the steam as it isprojeeted into the stream of water at the laringeiitl vof the combining tube, the stream of water. entering the tube around the nozzlegis not sufficient to lill the outlet end ofthe combining tube. BV pro'- riding the slits '-7' in' saidtube additional water is drawn in from' the 'casing through the slits as the stream oi steam and water passes outward and contractdnring such outward movement by reason of the condensation of the steam into water. the .outlowing stream begins to take place just as soon as the steam strikes the water near the open end of the combining tube and continues during the passage of the stream These slits thus permit additional water to flow laterally into the tube and make up for the contraction of the stream caused by the rapid condensation of the steam contained in it, thus greatly increasing the lifting capacity oflthe device.

Obviously changes `may beniade in tlze forni and construction of the casing and other parts of the device, and the combining tube may be provided with one or more slits therein, asvdesired, without departing from the `spirit of my invention and I do not limit myself to theform and construction shown.

Having thus fully described my invention what I claim is:-

' In an ejector, the combination of a casing having a fluid inlet'l and jet nozzle extending into the casing through one end thereof, of a combining tube extending into the opposite end vof the casing in axial alinement with the jet nozzle and having a flaring inner end adjacent to and of greaterdiame- This contraction of.

ter than the'end of the nozzle and said comadjacent to its open end to a point near the end of the casing through which the tube extends, one o f said slits confrontingthe fluid inlet of said -o'as'ng and the other sltthe'.

Wall opposite said fluid inlet, whereby back pressure from said -lnd inlet is edmtted to said tube to combinev with the direct pressure from said fluid inlet at a point in axial alinement with said jet nozzl

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