US1518180A

US1518180A - Expansion valve

Info

Publication number: US1518180A
Authority: US
Inventors: George J Cooke
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-04-02
Filing date: 1924-06-06
Publication date: 1924-12-09
Anticipated expiration: 1941-12-09

Description

a. J. cooKE EXPANS I ON VALVE Original F'i1ed Apri1 2, 1923 'latented bec.9,192 i. I i I 1,518,183

' UNITED STATES rarsurorr ca.

nxrnnsron VALVE.

Origmai a piication filed April 2, 1923, Serial No. 629,392. Divided this application filed Inna 6,

' 1924. Serial m. ?18 ,348. i

To all whom it 'mlag concern: in line with the passage 12 contains a recess Be. it known that I, Grouse-J. Coons, a 24 which opens into a radially-extending. citizen of the United States, residing at relatively smallchannel 26 in thisface and Chicago, in thecounty of Cook and State of opening into the chamber 14:. The recess 24 5 Illinois, have invented a certain new and and channel 26 form a passagewaythrough 60 useful Improvement in Expansion Valves, the end of the valve. Oneend f the'casing of which the following is a specification.- 8 is equipped with a stufiing box 28 and its This invention is a division of my prior opposite end is provided with a union 30, application for refrigerating apparatus, Sethe latter containing an opening 32 there- 1 rial No. 629,392, filed April 2, 1923. thru in which an intake pipe 34 is secured. 6

The invention relates to expansion valves The mechanism just described is installed required in machines of the class described in a refrigerating apparatus, for instance in the above mentioned application for althat of said prior application, in such a lowing the condensed refrigerating material manner that compressed material isfed in 'usually ammonia, to expand from one part thru pipe 34 and after expanding thru pas- 7 of the machinoito another, thereby producsages 12, 24 and 26 it leaves the valve device ing the necessary conditions for the refrigthru pipe 18. In the operation of such a crating work of the machines. machine the expansion device of this inven- The object of the invention is to provide tion is arranged with the valve 22 in apa valve of this class which is much more eftiproximately the position shown in Fi ures cient in operation than devices heretofore 1 and 2 of the drawing. Movement of the known, which can be easily and cheaply valve 22 by an operator applying a wrench made, which are satisfactory in use, and is to its non-circular end 22f is effected to pernot readily liable to get out of order, blot-e "mil; the valve to be partially withdrawn partioularly the invention consists in nufrom the position shown in Figures 1 and 2 80 merous features and details of construction to theright thereof to permit the more ready which will be hereafter \nore fully set forth cleaning of the ports of the valve structure in the specification and claims. by blowing compressed air or gas therethru.

Referring to the drawings in which like .The provision of the filtering material in numerals indicate the same parts thruout the chamber 10 is of value as it insures b5 the several views, against the passage of particles of dirt, to Figure 1 is a vertical sectional detail view the small orifice of the ex ansion deficit-i and of the valve meehanisn'i illustrating this in: which if not interceptec might clog the vention in its preferred form. latter, whereby obstructing of the valve pasl Figure 2 is a sectional detail plan view sages. is reduced to the minimum. o on the irregular line 2-2 of Figure 1. The recess 52% and the small passage 26 Figure 3 is :a sectional end'view on the at right angles to the axis of value 22 is of irregular line 3-3 of Figure 1. importance in insuring accurate adjustment Figure 4 is a perspective'end view of the of the device. valve proper. Having thus described my invention what The preferred embodiment of the device 'I claim as newand desire to secure by Let illustrated in the drawings includes a casters Patent, is ing 8 containing at one end a socket 10 for 1. An expansion device coinprising'a oasreceiving. any suitable filtering material, as ing containing a chamber havin' gagr inlet for example, absorbent cotton, this chamber and an outlet in communication, therewith, 10o opening thru a passage 12 into another a valve extending into said chamber, con-' chamber 14 from which leads a passage 16 taining a passage opening thru an end of the which opens into a discharge pipe 18. The valve into said inlet and pening thru the oppositetend of the casing 8 contains a side of the valve into said chamber, said '50 threaded bore 20 in which a valve pro er valve being adapted to'be adjusted into, a 22 is screwed, the inner end of this va ve position in which its passage-opens at both Y which extends into this chamber 14 being of ends into said chamber.

considerablyless diameter than the internal 2. An expansion device comprising a casdiameter of this chamber. The inner end ing containing a chamber having an inlet-s1"; face of the valve 22 at the portion thereof and an outlet in communication .110)

a, valve extending into said chamber, containing a passage opening thru an end of the alve into said inlet and thru the side of the valve, into said chamber, the said pasheing cut into an end of the valve which normally strikes and otherwise c oses said inietpzissage, said valve being adapt-ed to be adjusted into a position in which its passage opens at both ends into said chamber.

3. An expansion device comprising :1 casing-containing a chamber having an inlet and an ontlet in communication therewith, a,

valye extending into said chamber, containing a passage opening thru an end of the valve into said inlet and opening thru the side of the valve into said chamber, the portionof said passage where it opens thru the side of the valve being restricted as compared with the opposite end thereof, said valve being adapted to be adjusted into a position in which its passage opens at both ends into said chamber.

In witness whereof, I have hereunto suhscribed my name.

GEORGE J. COOKE.