US1780593A - Refrigerating valve and method of constructing the same - Google Patents

Description

A. J. KUSEL .Nov. 4, 1930.

REFRIGERATING VALVE AND METHOD OF CONSTRUCTING THE SAME Original Filed June 28, 1924 Patented Nov. 4,

Are

ABRAHAM J. KUsnL, or BALTIMORE, ManYLAivnAssIeNoR roxonamooarona'riolv,

A CORPORATION OEDELAWARE 'BEFRIGERATING'VAL-VE AND METHOD oons'r'rworme THE SAME Original application'filed June 28, 1924,

'This application is a division oi my apwhich shall provide at all times an absolute seat on both the discharge and inlet sides as well as lncorporate such features as to,

eliminate constrictive influence or wire-drawing of the medium passing through the valves in operation; ,lll addition, there isv the desire to make such valves practically noiseless in operation and'to provide a valve that may be readily and cheaply assembled and yet be of such construction and accuracy as will perm t of seli align'ing elements, so as to provide all of the" aforementioned advantages. MA further object of my invention the process of self-alignment of the valves and maintaining the same as hereinafter set forth.

A further object of my invention is the construction of a valve embracing the desired features above enumerated and yet 5 v simple and easily made that ordinarystamp ing and screw machine processes may be employed.

Oi course standardization under modern machine practice is understood. I V

A further object of my invention is the construction of a suction valve that will 1 possess larger internal clearances and yet be no larger externally than the companiOndischarge valve in order to fit uniformity of ports, a desirable feature in refrigeration.

A further object of my invention is the providing of a valve unit in which the valve is completely'and finally assembled and adfrigerating machine.

' 'usted arior to insertion 'in'the oneratin 're. O,

With the foregoing obj ects-in View, my inf vention consists of the methods employed,

' combination'and arrangement of systems,-apparatus andmeans as hereinaiter specifically provided and illustrated in the accompanying drawings wherein is shown the preferred embodiment of my invention, but it is under stood that changes, variationsand modificathroughout the several "viewsl Serial No. 722,985; niviaeia dfthis application-*fild'April 26, 1926; Serial tions may be 1 resortedto which come within the scope of the claims hereuntoappended.

In the drawings of the, herein de'scribed embodiment o fmy invention Fig? 1 is:a sectional view in elevation of the suction or in let valve of refrigerating machine; Fig, '2

is a sectional view in elevation of the dis charge orioutlet valve ofa refrigeiating machine, embracing my improvements; Riga: 8

f is-a plan view of the jso -called spider,infmy -construction; and Fig. 4 is a iviewjinaelevation Y iofcthe 'spidershown, in Fig. 3. 5

f Similar? numerals refer to similar f-parts Referring to the drawings a valve-20, thestem 2lf0f said valve being guided-and maintainedconcentrically of the -cylindric'al member '22 by spacing devices or spiders 25. These. spiders are provided 'gwith enlargedcentral portions 26 forming .suflicient bearings, for the valve stem 24 during thejoperation thereon The valve 2205s normally maintainedwin .closedjposition by a compression spring or the like 23 mounted aboutthe lower end ofithe valve stem and cheld in position between thelowermost spider in detail, {with referencefirst to Fig.- 1 which showsan in take orsuction valve, the improved, valve assembly comprises a removable cylindrical member 22,- supporting inoperative position i 25 and the end of the valvea-stemfl l bya washer or the likei28ig- .Upon referring to Fig; there is shown a reversely operating valve to that shown in Fig. 1 and in this instance the cylindrical member 22 is provided with an elongation 22111' order that the spiders or guides 25 may be properly spaced apart to permit the in sertion ofthe' spring 23 between the upper face of the lowermost guide and the washer 23 which Washer inthis instance is located near the upper end of the valve stem 24 which alternative construction as distinguished from that show nin Fig. 1 is obviously necesthe apparent operation of the sary owing to valve. The general construct1on and assembl ng ofthe valve units however are the same and arecovered by the same invention. In each instance the entire valve including its seat is .assembled prior to its installation and can be inserted and removed as a unit.

In the construction of the spider 25, shown in Figs. 3 and 4:, stampings are used and are placed Within the casing 22 and pressed therein by a tool positively centering the same and pressing the same into intimate contact With said casing; this aligning and setting simultaneously by ositive means insures accuracy of both setting and aligning, and is an inexpensive method of making such assemblage. v

V In the manufacture of the spiders, or guides, a distortion is occasioned which provides a means for securing the guides Within the shell when said distortion is corrected by i a centering means.

, In this description and claims. when I use the term spider, I mean a spacing element. Having thus described my invention, What I claim and desire to secure by Letters Patent 1. A unitary Valve structure comprising a removable cylindrical member forming a valve seat, a valve and stem, spaced guide- Ways for concentrically'mounting said valve Within the cylindrical member, both of said guideWays being frictionally maintained in definite spaced relation but removable from v said cylindrical member and a spring for maintaining the valve normally closed and in assembled operative position With re- I spect to-said cylindrical member.

. 2. Aunitary valve structure comprising a removable cylindrical member forming a Valve seat, a valve and stem, spaced guide- Ways carried by the cylindrical member for concentrically and positively mounting said valve in the cylindrical memberwith respect to the valve seat, both of said -guideways being frictionally maintained in definitespaced relation but removable from said cylindrical "member and a springfor maintaining the said valve normally closed and in assembled operativeposition with respect to said cylindrical member.

ABRAHAM J KUSEL.

Images