US2048246A - Air conditioning device - Google Patents

Description

July 21, 1936. .D Y 2,048,246

AIR CONDITIONING DEVICE Filed March 27, 1953 3 Shee ts-Sheet l INVENTOR,

4 ATTORNEY July 21, 1936. D, DASHER 2,048,246

AIR CONDITIONING DEVICE Filed March 27, 1933 3 Sheets-Sheet 2 July 21, 1936. DASHER 2,048,246 AIR CONDI-TIONING DEVICE- Filed March 2'7, 1933 3 Sheets-Sheet 3 INVENTOR,

4/5 ATTORNEY Patented July 21, 1936 UNlTED STATES PATENT OFFICE AIR CONDITIONING DEVICE Ohio Application March 27, 1933, Serial No. 662,937

17 Claims.

This invention relates to new and useful improvements in air conditioning devices.

It is one of the principal objects of my invention to provide an air conditioning deviceof the .5 ceiling fan, bracket or pedestal type that will distribute the conditioned air laterally in all directions. It effects an equal gravitational distribution, and even diffusion, of the conditioned air without draft or blast.

10 It is another object of the invention to provide a pump, preferably driven from the fan shaft, for removing the condensation from the air conditioning device.

It is another object of my invention to provide 15 electric lights on the fan housing for direct or indirect lighting.

Itis another object of my invention to provide means for discharging the air laterally from the fan, or for drawing it in through the sides 20 and discharging it through the top or bottom of the fan housing.

Other important and incidental objects will be brought out in the following specification and particularly set forth in the subjoined claims.

25 In the accompanying drawings illustrating the different forms of embodiment of my invention, Figure 1 is a longitudinal-sectional view taken through my ceiling type of fan for discharging the air laterally in all directions. Figure 2 is a side elevational view of a wall bracket type of fan. Figure 3 is a side elevational view of a pedestal type of fan. Figure 4 is a longitudinal sectional view through the fan portion of the pedestal unit. And Figure 5 is a longi- 35 tudinal sectional view taken through a ceiling type of fan unit in which the air enters at the sides and top and is discharged laterally from the bottom in all directions.

Referring to the accompanying drawings for 40 a detailed description of the different forms of embodiment of my invention illustrated therein, the numeral l inFigure 1 designates a ring adapted to be secured to a room-ceiling 2 audio receive bracket screws 3. The ring I is provided 45 with a cross member 4 which is attached to the ceiling by a stud 5.

Secured to the ring I by the screws 3 are bracket arms 6 which terminate at their lower ends in vertical. portions 1. The latter are con- 50 nected by fastening elements such as bolts '8 to the upper end of a vertical tubular member 9 to which there is secured by screws i an ornamental casing II that surrounds the bracket arms and is itself attached to the ring I. (See 55 Figure 1.) 1

Secured by screw bolts l2 to the lower end of the tubular member 9, are the upturnedends of bracket arms l3. The latter, in turn, are secured to vertical arms l4 which terminate in long horizontal ends i5. Attached to the horizontal ends l5 of the arms l4, are cylindrical rubber pads l6 that are recessed to fit holes in a plate I! that has a central, flanged neck portion l8. By means of the pads l6, and studs l9 which pass through them the plate I1 is supported by 10 the arms id in a. substantially noiseless manner.

Securedto similar rubber pads 20 connected by screws 2i to the plate I 1 near its tubular neck portion l8, are bracket arms 22, 22 attached at their upper ends by screws 23 to a vertically disposed electric motor 24 to support the same. Surrounding the motor 24 is a cylindrical housing 25 and a dome-shaped cover 26 above it. The housing 25 is secured by flanged foot members 21 to the horizontal portions of the arms I4, while the dome-shaped cover 26 has a neck part 28 which is attached by screws 29 to the tubular member 9. (See Figure 1.) The members 26 and form together an ornamental casing for the motor 24 and its surrounding parts.

Projecting downwardly from the motor 24 is an armature shaft 30 to which is attached the hub 3| of a conventional centrifugal, multi-vane fan 32. Surrounding this fan is an evaporator 33 preferably comprising a spiral expansion coil 30 34 supported by U-rods 35. These U-rods are secured at their upper ends to bars 36 which are. attached to the horizontal portions of the arms l4, below the pads l6 and washers 31, by the studs l9.

Depending from the outer, flat annular edge portion 38 of the plate I1, is a circumferential series of studs 39 with. ornamented heads, and carrying on their lower ends ornamental nuts 40. Secured to these studsat suitable distances apart, 40 are flat rings 4| between which conditioned air is discharged laterally outward by the fan 32 in all directions, as indicated by the arrows in Figure 1. This air is cooled by the expansion coil 34 between whose spirals it passes in its out- The lower end of the coiled liquid refrigerant, inlet tube 42 communicates with an expansion valve 48 from whence the gaseous refrigerant flows through a tube 41 into the expansion coil 1 cool the warm liquid refrigerant which enters the latter. The sleeve 49 terminates in a T-fltting 58 from which the gaseous refrigerant is returned to the compressor through a tube 5| which, with the liquid inlet tube 42, passes through the depending tube 9, ring I and ceiling 2, to said compressor.

'I'hemoisture or water of condensation which the expansion coil 34 abstracts from the air forced past it by the fan 32, drops upon a pan 52 secured to the studs 39 immediately above the nuts 48. This pan 52 has a central flanged neck portion 53 around which studs 54 project downwardly from the pan. Secured to the lower ends of these studs 54 by ornamented nuts 55 is a pan 58 into which the water of condensation is discharged by the pan 52.

Secured to the studs 54, are two flat rings 51 having downwardly inclined portions for deflecting the air that enters between them, downwardly and inwardly for entrance through the central open portions of said rings to the centrifugal fan 32 which is directly above the open neck portion 53 of the pan 52, as indicated by the arrows in Figure l.

For the purpose of removing the water of condensation from the bottom pan 58, I provide a pump 58 whose base 59 is secured to rubber pads 88 similar to the pads I8. These pads are secured by screws GI and nuts 62 to the horizontal portions 53 of bracket arms 64 having flanged upper ends that are attached by screw bolts to the pan 52. This pump 58 is preferably driven by a shaft 68 which has a spring and pin connection 81 to the lower end of the motor armature shaft 38.

Thus the motor 24 not only drives the fan 32, but also the pump 58 from the same armature shaft. By means of a short curved tube Iii'I' the water of condensation is drawn from the pan 56 by the pump and discharged therefrom through a tube 68 that passes upwardly with the tubes 42 and 5| through the depending tube 9, ring I and ceiling 2 -to a drain Pipe (not shown).

In Figure 2 I have. illustrated a wall bracket type of air conditioning fan. This type is in all respects similar tov the fan which I have just describedsave that the tubular member 9 is attached at its upper end to the horizontal arm 89 of an ornamented wall bracket I8. The arm 89 is hollow to receive the refrigerant inlet tube 42, the gas outlet tube 5|, and the condensation discharge tube 88. These tubes pass through the vertical portion of the bracket 18' and the wall 1| to which said bracket is secured by screws".

Mounted on the top portion of the outer end of the arm 89, directly above the air conditioning fan unit, is an indirect lighting lamp 13.

The wall bracket type of my air conditioning unit is so supported by the bracket that the conditioned air will bev discharged laterally in all directions by the same.

In Figures 3 and 4 I have illustrated a pedestal type of air conditioning unit. In these figures the pedestal comprises a column having a base I5 and a cap Hi. The base, column and cap of the pedestal are hollow, and support an air conditioning fan unit of the general type disclosed 5 in Figure 1.

Referring to Figure 4 for a detailed description of this fan unit, the numeral 11 designates a bottom water condensation pan that rests upon the top of the cap .16, which in turn surrounds l8 and is supported by the upper end of the column Secured to the pedestal cap'16 by long screws I8 which pass downwardly through the pan 11 into the cap are the foot portions I9 of vertical 16 supporting members 88 which terminate at their upper ends in horizontal parts 8|. Secured to the latter by studs 82 are vertical shafts 83 which, at their upper ends, support a plate 84 similar to the plate I1.

Secured to the plate 84 directly over the shafts 83, by long studs 85 which pass through "them and the plate into the shafts 83, are rubber pads 88 similar to the pads I5. Attached to these pads are bracket arms 81 to the upper ends of 15 which a vertically disposedelectric motor 88 is secured.

Secured to the plate 84 in two circumferential rows are rubber pads 98 similar to the pads I 6. The horizontal portions 9| of the arms 92'are secured upon these two rows of pads by the studs 93. Attached to the bottom portions of these pads 98 by the same studs 93 are horizontal bars 91 to which U-rods 98, similar to the U-rods 35, are secured. I

The U-rods 98 support an expansion coil 99 similar to the expansion coil 34. This expansion coil or evaporator 99 so supported by the U-rods 98, surrounds a centrifugal fan I88 of the multivane type similar to the fan 32. This fan I88 is mounted upon a hub |8| secured to the armature shaft I82 of the motor 88.

The fan I88 forces laterally between the coils of the evaporator 99, the air to be cooled by the latter and discharged laterally in all directions by the flat rings I83 similar to the rings 4| and mounted upon vertical studs I 8.4. These studs depend in a circumferential series from the outer horizontal annular edge portion I85 of the plate 84. To the lower ends of the pins I84 the outer annular horizontal edge portion I88 of a condensation pan IN is secured by nuts I88. This pan, which is similar to the pan 52, has a central flanged neck portion I89 that surrounds the lower end of the fan I88.

v Depending from the pan III'I around the upper ends of the vertical members 88, are studs IIII to which the upper annular horizontal edge portion III of the pan I1 is secured by nuts II2.

Attached to the studs I I8 are two flat rings113 having downwardly inclined portions for deflecting the air that enters between them, downwardly' and inwardly for entrance through the central open portions of said rings to the centrifugal fan I 88, as indicated by the arrows in Figure 4.

For the purpose of removing the water 01mm 7 densation which descends into the bottom pan 11 from the pan I01, I have provided a pump II4 similar to the pump 58. This .pump is mounted upon a base plate I I5 which is supported by rubber pads 18 that are secured to the foot portion 19 of the vertical members 00 by the screws 18. (See Figure 4.) The water of condensation from the pan 11 is drawn into the pump through a short curved tube H6, and discharged by said pump through a tube II1 that passes downwardly through the hollow pedestal to a drain not shown. The pump II 4 is driven through a shaft II8 connected by a spring and pin connection II9 with the armature shaft I02 of the motor 88.

The liquid refrigerant is admitted through a tube I20 which passes from a compressor (not shown) through the hollow pedestal to a coil jacket or sleeve I2I. This coil I2I surrounds the bracket arms 92 and is held against them by vertical retaining members I22 similar to the retaining members 44, and. attached to said tube I25 into the expansion coil 99 which surrounds the centrifugal fan I00, to cool the air set in lateral motion in all directions by the fan.

Through a tube I26 connected with the outlet end of the expansion coil 99, the cooled gaseous refrigerant is discharged into a T-fitting I21 which communicates with the coil 'slceve or jacket I2I that surrounds the inlet tube I20, to cool the warm liquid refrigerant that enters the latter.

The coil sleeve I2I terminates in a T-fltting I28 from which the gaseous refrigerant'is returned to the compressor through a tube I29 which, with the liquid inlet tube I20 and condensation outlet tube II 1, passes through the hollow pedestal to said compressor. (See Figures 3 and 4). Mounted on the top middle portion of the housing 89 is an indirect lighting lamp I30. (See Figure 3.)

In Figure 5 I have illustrated a ceiling type of fan unit that is constructed to receive air through the sides and top and discharge it laterally through the bottom. In this figure I have shown a ceiling-supported tubular member I3I to which bracket arms I32 similar to the bracket arms I3, are secured.

Vertical arms I33 terminating in the horizontal, lower ends I34 are secured to the bracket arms I32. Rubber pads I35, similar to the pads I6, are secured to the ends I34 of the arms I33 to noiselessly support a plate I36 having a central opening I31. I

Secured to rubber pads I fixed to the upper surface of the plate I36 around the opening I31, are bracket arms I39 which support a vertically disposed electric motor I 40. Surrounding this motor I40 is a cylindrical housing MI and a dome-shaped cover I42, thehousing being mounted upon the horizontal portions I34of the arms I33, while the cover depends from the tubular member I 3I.

Surrounding the arms I33 is a coiled sleeve I43 supported by retaining members I44 secured to said arms. Through this sleeve I43 there passes a tube I45 that conducts a liquid refrigerant downwardly through the tubular member I3I from a compressor not shown. Through an opening I46 in the top of the housing I air enters the latter and passes downwardly in the direction of the arrows through the opening I31 in the plate I36 for circulation by a fan to be hereinafter described. (See Figure 5.)

At its lower end the liquid refrigerant inlet tube I45 communicates with an expansion valve I41 from whence the gaseous refrigerant flows through a tube I48 into an expansion coil I49 similar to the expansion coil 34 and similarly supported beneath the plate I36 by U-rods I50 connected to bars I5I secured to the pads I35. (See Figure 5.)

Depending from the outer, flat annular edge portion I52 of the plate I36, is a circumferential series of studs I53. Secured to these studs at suitable distances apart, are flat rings I54 between which air enters the unit for cooling by the refrigerant expansion coil I49 before being discharged by thev fan soon to be described.

The moisture or water of condensation abstracted from the air by the expansion coil, drops upon a pan I 55 which is secured to the lower ends of the studs I53 by nuts I56. This pan is formed at its middle portion with a wide opening I51 defined by an annular upturned flange I58. (See Figure 5.)

Mounted upon the bottom of the pan I 55 around, and closely adjacent to, the flange I58, are rubber pads or feet I59 which support a base plate I60 having a downwardly projecting, internally threaded, hollow boss I 6I through which the upper portion of a fan shaft I62 passes. This shaft is connected at its upper end by a coupling I63 to the armature shaft I64 of the motor I40.

Secured to the lower end of the armature shaft I64 is the rotor I65 of a rotary pump I66 mounted on the base plate I60, and which is in communication with the drip pan I55 through a tube I61 which enters the pan through a hole in its flange I58. The water of condensation drawn from this drip pan I55 by the pump I66 is forced by the latter into an outlet tube I 61*- which passes through the tubular member I 3I, adjacent the liquid refrigerant tube I45, to a drain, not shown.

The numeral I10 designates a multi-vane fan having a hub "I attached to the lower end of the shaft I62. After passing the expansion coil I49, the air conditioned by the latter enters the fan I10 as indicated by the arrows in Figure 5, and by the fan is ,forcedlateraily in all directions through the openings defined by the flat rings I12 mounted on studs I13.' These studs depend from the drip pan I55, and have secured to their lower ends, by nuts I14, a base pan I15 directly below the fan.

Through a tube I16 connected with the outlet end of the expansion coil I49, the cool gaseous refrigerant enters the tubular sleeve or jacket I43 to cool the warm liquid refrigerant which passes through the latter in the tube I45. The sleeve I43 terminates in a T-fitting I11 from which the gaseous refrigerant is returned to the compressor, not shown, through a tube I18 which passes through the tubular member I3I with the refrigerant inlet tube I45 and condensation discharge tube I61. (See Figure 5.)

Having described my invention, I claim:

1. In a device of the type described, a support, a housing secured to said support, a centrifugal, multi-vane fan within said housing, a refr gerant-evaporator coil surrounding the fan within the housing, and spaced fiat rings surrounding the evaporator coil, within the housing, to difevaporator coil surrounding the fan within the housing, and vertically spaced flat rings surrounding the evaporator coil, within the housing, to difiuse the air conditionedby the coil laterally in all directiona Y 3. Ina device of the type described, a support,

a housing secured to said support, an electric motor within said housing, an armature shaft on said-motor, a fan secured to said armature shaft within the housing, a refrigerant-evaporator coil associated with said fan within the housing to condition the air forced past it by said fan, a pan in said housing to receive the water of condensation abstracted from the air by said refrigerant-evaporator coil, and a pump secured to said armature shaft for forcing the water of condensation from said pan. a

4. In a device of the type described, a support, a housing secured to said support, an electric motor within said housing, an armature shaft on said motor projecting axially of the housing a fan secured to said armature shaft within the housing, a refrigerant-evaporator coil surrounding the fan within the housing, to condition the air forced past it by the fan, a drip pan at the bottom of said housing to receive the water of condensation abstracted from the air by said refrigerant-evaporator coil, and a pump attached to said armature shaft below the fan to force the water of condensation from said drip pan.

5. In a device of the type described, a support, a housing secured to said support, a vertically disposed electric motor within said housing, an

armature shaft projecting downwardly from said' motor, a centrifugal multivane fan mounted on said armature shaft within the housing, a refrigerant-evaporator coil surrounding said fan within the housing, and means for introducing air to said fan through the bottom and top of said housing, and means in the side of said housing adjacent the refrigerant-evaporator coil for discharging the air moved past said coil by the fan, laterally in all directions.

6. In a device of the type described, a hollow pedestal, a fan housing supported on said pedestal, a fan within said housing, a refrigerantevaporator coil surrounding said fan within the housing to cool the air set in motion by the fan, vertically spaced members in said housing around the evaporator coil to diffuse the conditionedair laterally in all directions, a liquid refrigerant tube passing upwardly through said pedestal-Ito the evaporator coil, and a gas discharge tube passing downwardly from said evaporator through said pedestal. 7. In a device of the type described, a hollow pedestal, a fan housing supported on said. pedestal, a fan within said housing, a refrigerantevapo'rator associated with said fan in said housing to cool the air set in motion by the fan, said housing formed with openings to discharge said air laterally in all directions, a pan below said evaporator to receive the water of condensation, I

j a pump for drawing said condensation from the pan, a condensation discharge tube leading from said pump downwardly through said pedestal, a

tube for conducting liquid refrigerant to said evaporator and a tube for withdrawing gas from the latter, also in said pedestal.

8. In a device of the type described, a support, a housing secured to said support, a vertically disposed motor in said housing, an armature shaft projecting downwardly from said motor, a centrifugal, a' multi-vane fan on said armatm'e shaft, within the housing, a refrigerant-evaporator coil surrounding the fan within thehousing, the bottom and top of said housing formed .with openings to admit air to the fan, and spaced horizontal members defining openings in the side of said housing around the refrigerant-evaporator coil to diifuse outwardly in all directions the air forced past said coil by the fan.

9. I'he combination with a wall bracket having a hollow horizontal arm, a fan housing depending from the outer end, of said am, a fan in said housing, a refrigerant-evaporator surroundin the fan in said housing to cool the air set in motion by the fan, said housing having side openings for difiusing said air laterally in all directions, a liquid refrigerant tube passing through the hollow arm of said bracket to the evaporator, and a gas discharge tube connected to the latter and also passing through said hollow bracket arm.

10. In a device of the type described, a support, a housing secured to said support, arefrigerantevaporator within said housing, means surrounding said evaporator to admit air laterally thereto, a fan in said housing below the evaporator, means for directing air cooled by the evaporator, to the fan, and means for difiusing laterally in all directions, the cool air set in motion by the fan.

11. In a device of the type described, a support, a housing secured to said support, an electric motor in said housing, an armature shaft projecting downwardly from said motor, a refrigerant-expansion coil surrounding said shaft within the housing, means surrounding the expansion coil to admit air laterally thereto, a fan operated by the armature shaft in said housing below the expansion coil, means for directing air cooled by the evaporator coil, to the fan, and means for diiiusing laterally in all directions the cool air set in motion by the fan.

12. In a device of the type described, a support,

expansion coil, to set in motion and discharge the air cooled by said coil, apan below the expansion coil to receive water of condensation from fjth'e latter, and a pump secured to said armature shaft between the motor and the expansion coil to remove the water of condensation from said pan.

13. In a device of the type described, a support, a housing secured to said support, a fanwithln said housing, a refrigerant-evaporator surrounding the fan within said housing, and diffusing means within the housing, surrounding the refrigerant-evaporator, to diffuse the air condi tioned by the evaporator laterally in all directions. 14. In a device of the type described, a support, a housing secured to said support, a fan within said housing, a refrigerant-evaporator coil surrounding the fan within the housing, and spaced horizontal means defining openings in the housing around the refrigerant-evaporator coil, to diffuse the air conditioned by said coil outwardly in all directions.

15. In a device of the type described, a support, a housing secured to said support, a. fan within the housing, refrigerant-evaporator means associated with said fan within the housing to condition the air forced past it by said fan, a receptacle in the housing to receive the water of condensation abstracted from the air by said refrigerant-evaporator means, a pump for forcing the water of condensation from said pan, an electric motor within the housing, and means connected to the motor for operating both the fan and the pump.

16. In a device of the type described, a support, a housing secured to said support, a fan within the housing, a refrigerant-evaporator surrounding the fan within the housing, the bottom and top of said housing formed with openings to admit air to the fan, and spaced horizontal members defining openings in the side of said housing around the refrigerant-evaporator to diffuse outwardly in all directions the air forced past said coil by the fan.

17. In a cooling unit, the combination with a container having-its opening directed upwardly, of a plurality of cooling coils supported within the container, a motor operated fan positioned within the coils and operating to draw air through the opening in the container, and louvers in the sides of the container for discharging the air and directing the same downwardly.

DON E. DASHER.

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