US1691180A - Condenser for refrigerating apparatus - Google Patents

Description

Nov. 13, 1928. 1,691,180

J. o. CABREY CONDENSER FDR REFRIGERATING APPARATUS Fiied June 2a, 1926 da/m/ 0. 6a z'a 27 6 M 7 v 7 Patented Nov. 13, 1928.

' UNITED STATES PATENT JOHN 0. cARRnY, on ST. LOUIS, Mrssounr, assrenon TO 1&1 Ci ENG irTEERING co.,'I1vo., OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

CONDENSER 'ron REFRIGERATING APPARATUS.

Application filed June 28, 1926. Serial No 119,106. 1 i

This invention relates to new and useful improvements in refrigerating apparatus and to a novel method of condensing therefrigerant.

1 T he objects of the invention are to provide 1 an improved condenser arranged so as to effect the cooling and condensation of the compressed refrigerant in a simple and ed1- cient manner thereby enabling me to use a more compact condenser unit which is adapted to be placed between the compressor unit and the motor used to operate said compressor. a r f Other objects of the inventionare to provide a condenser comprising twocoiledsec tions, one ofwhich is of smaller diameter and arranged within the other section, said sections-having their inlet and outlet connections so disposed that the path of travel of the refrigerant throughsaid sections is simultaneous and in opposite directions to each other in order to insure rapid dissipation of heat from said sections. 1

Further objects of the invention are to arrange such sections in nested relation'with each other with the axes of said sections disposedcoaxially with the axis of the operating shaft of said compressor and motor andto provide a suitable fan on said shaft anddisposed within said coils for forcingthe air radially through said sections thereby insuring efficient circulation of air through all of the coils of said sections.

With these and other objects in view, my invention consists in certain novel features of construction and arrangement of parts. here inafter more fully described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 isa side elevational View, partly in section, of my improved refrigerating'ap paratus'.

Figure 2 is a top plan view of the same.

Figure 3 is a vertical cross section taken transversely on line 3-3 of Figure 1.

Referring by numerals to the accompanying drawings, indicates a compressor unit used for compressing the refrigerant. A shaft 11 extends from said compressor and is connected by a coupling 12 to a shaft 14 of a motor or other prime mover 15. Leading from the high pressure side of the compressor is a pipe connection 16 which communicates with the horizontally disposed tubular memlarge diameter and her or header17 which is'of comparatively serves as anintake manifold for a pair of condenser sections 18 and 19. The inlet ends QO'and 21 thereof are con nected tosaid header as indicated at22 and 23 respectively. Each condenser section is formed by coiling the pipe and the diameter of the coils of section 18 is larger than the diameter of the coils of section 19 so that the latter can be arranged within the first section 18 and spaced a suitable distance.therefrom.

Vhen. so arranged; the coils of section 19 run in opposite direct-ion to thecoils of sect-ion 18 and the inlet terminals and 21 are connected to the opposite ends of intake manifold 1'? so that the refrigerant in traversing the respective sections runs in opposite directions as indicated by arrows in Figure 2. The outlet terminals or connections 24 and25 of section 19 and 18are connected at spaced points to a horizontally disposed tubular member or header 26 from which leads a pipe 27 which conveys the condensedrefrigerant to an expansion or cooling unit 28. A pipe 29 connects'the cooling unit 28 with the low pressure side ofthe compressor and serves to return the refrigerant back to the compressor, whereupon the cycle of operation is repeated.

The'sections 18 and 19 are disposed with their axesin a'horizontal plane and preferably coaxial with shaft 14. A fan 30, provided with horizontally disposed bladesill concentrically arranged around shaft 14. is fixed to said shaft Within the inner section 19and preferably longitudinally coextensive with said sections 18 and 19. The rotation of shaft 14 actuates fan and causes air to be forced radially. through the coils of said sections. thereby assisting in dissipating heat radiated by said sections, and accelerating the condensation of the refrigerant. Fresh air is drawn in through the ends of the sections 18 and 19 and replaces the air driven radially through the coils of the sections and in this I manner a constant circulation of air through all of the coils is provided in an eflicient and simple manner.

The provision of two coiled sections ar ranged in nested spaced relation with each other and having their respective inlet and outlet connections arranged so that the refrigerant is caused to traverse Slll'lllltflIlQOUSlY both of said sections in opposite directions assures uniform distribution of heat throughmy invention it is obvious that changes in the arrangements of parts of my devicecould be made without departing from the spirit of my invention.

I claim:

1. In a refrigerating apparatus, a. cone' denser unit comprising two dlflerentsized sections of coiled pipe, the smaller section being arranged wlth n the larger and in spacedrelation therewith, the inlet connections of both of said sections being disposed in the same horizontal plane the opposite ends of the respective sections, and the outlet connections of both of said sections being disposed in the same horizontal. plane oppositely to said inlet connections and below the longitudinal plane thereof so as to cause the refrigerant to travel through said sections in opposite directions.

2. In a refrigerating apparatus, a con.- dens-er unit comprising two horizontally .disposeddifferent sized sections of coiledpipe, the smallersection being arranged within the larger and in spaced relation therewitlnthe inletconnections of both of said sect-ions being disposed in the same horizontal plane at the oppositeends of the respective sections, and the outlet connections being disposed below the horizontal plane of said inlet connections so as to cause the refrigerant The fan blades 7 to travel through said sections in opposite directions, and a fan revolubly mounted within the inner section coaxially therewith for forcing the air radially through the coils of said sections. a l

c 3. In a refrigerating apparatus, a 'condenser unitcomprising two horizontally arranged-coaxial sections of coiledpipe, one of said sections being of smaller diameter than the other and arranged within the latter in spaced relation therewith, an intake header common to both of said sections, and a discharge header common. to vlooth of said sections. 7 4. In a refrigerating apparatus, a condenser unit comprising two horizontally arranged-coaxial sections of coiled pipe, one of said sections being of smaller diameter than the other and arranged Within the latter in spaced relation therewith,.an intake header common tobot-h of said sections, a discharge,

header common to bothof said sections, and means revolubly disposed within the, inner section and spaced therefrom for forcing the airradially through thecoils of said sections.

5. In a refrigerating apparatus, a condenser unit comprising two horizontally disposed coaxial sections of coiled pipe, one of said sections being of smaller diameter than the other and arranged within the latter in spaced relation therewith, an intake header common to, both of said sections, a discharge header common to both of said sections, and a series of horizontally disposed fan blades secured to said shaft and arranged inconcentric spaced relation with the coils of the I inner sectionfor drawing the airint-o said sections-through the ends thereofand forcing the air radially through the coils of said sections In'testimony whereof I hereunto afiix my signature this 4th day of June, 1926.

JOHN QCARR'EY.

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