US2159024A - Air conditioning apparatus - Google Patents

Description

May 23, l939 H. HERSPERGER 2,159,024

AI'R CONDITIONING APPARATUS Filed Dec( 51, 193e 2 sheets-sheet 1 n .1. l MQW J muunnnim'mmnmwy ff\ @ummm E wf'l Im auf',

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May 23, 1939- H. HERSPERGER l 2,159,024

i AIR CONDITIONING APPARATUS Filed Dec. .'51, 1936 2 Sheets-Sheet 2 *tw' I J0 7/ 5/ 76 BY f 16;., ATT NEY Patented May 2.3, 1939 PATENTI OFFICE AIR lCONDITIONINGk APPARATUS Herman Hersperger, Roselle, N. J., assigner to American Radiator Company, New York, N. Y., a corporation of New Jersey Application December 31,

Claims. (Cl. 261-12) My invention relates to air conditioning apparatus, and more particularly to vair conditioning apparatus of the room unit type; that is to say, one which is enclosedl within a cabinet or casing structure and is adapted to be installed in a room space, and which operates to condition .the air in such space.

An object of my invention is to provide apparatus of the above type which is of improved construction and arrangement of parts.

A further object is to provide apparatus of this type which is highly compact and which is pleasing in appearance and which operates to condition effectively the air within the room space in which it is installed.

Without imposing any limitation on the invention in its broader aspects, a still further object is to provide an air conditioning unit including as part thereof a means for circulating and heating the air during the winter, and a means for adding moisture to the heated air; both means being compactly arranged in an improved form of cabinet which is neatand pleasing in appearance, and being also arranged in a manner to perform eillciently the functions of heating and humidifying the air.

The invention consists in the novel construction and combination of parts, to be more fully described hereinafter, and the novelty of which will be particularly pointed out and distinctly claimed.

In the accompanying drawings, to be taken as a part of this specication, I have fully and clearly .illustrated a preferred embodiment of my invention, in which drawings- Fig. 1 is a perspective view illustrating one preferred embodiment of my invention as installed in a room space at points adjacent a window opening thereof;

Fig. v2 is a transverse gertical sectional view taken on the line 2-2 of Fig. 3;

Fig. 3 is a longitudinal verticalsectional view taken on the line 3 3 of Fig. 1; and l Fig. 4 is a longitudinal horizontal sectional view taken on the line 4-4 of Fig.'3.

Referring now in detail to the construction v illustrated, it will be observed that I have shown `of the roomv by a plurality of jack screws I6 which serve to position the top wall II at ther desired level with respect to a window sill I'I. A skirt member I8 surrounds the lower part of the end walls l2 and I3 and front wall I4, and

,the outlet opening 30.

1936, Serial N0. 118,483

closes the space between the bottom of the cabi- I net and the iloor, thereby providing a unit which presents a pleasing appearance to the eye of ranged partition means and 2l into a central air supply and circulating compartment 22, into a water supply compartment 23, and into a humidifying compartment 24. The compartments 23 and 24 may also bevreferred to as end com'- partments, as they are arranged respectively at' the ends of the vcentral compartment and provide with the latter a neat and' well balanced unit. Doors 25 and 26 are provided in the front of the end compartments 23 and 24 respectively for the purpose of providing access to the interior thereof for inspection and replacement of elements housed therein. The doors 26 and 26 are'of the' same size and are similarly arranged withrespect to their Vcompartments so as to contribute further to the. Well balanced and neat design of the cabinet.

Air outlet openings 30 and 3l lof similar size and shape are provided in the top wall II and at the center of the cabinet. The openings 30 and 3I are arranged symmetrically with respect to a vertical transverse median plane through the cabinet Ill, as will appearfrom an examination of Fig. 1. A relatively small oblong outlet opening 32 is also provided in the top wall II at pointsadjacent the outlet opening 3l for the purpose of introducing moisture into the room, in amanner which will appear more fully hereinafter. Y

An air inlet opening 35 is provided in the center of the top'wall II and at therearthereof. The opening 35 communicates with the outside atmosphere by a horizontally and rearwardly extending duct 36 connected at its inner end to the top wall II and communicating with the opening 35, and having its open outer end arranged within an opening defined by a partially raised window sash 3l andthe window sill I1, so as to provide communication with the outside atmosphere. Suitable iiller pieces 38 are arranged respectively between the sides of the duct 36 and the adjacent window jambs 39, The skirt member I8 is provided with a pair of symmetrically arranged air inlet openings 40 which provide communication between the room space, and the interior and bottom of the cabinet.

The unit I6 operates to bring in fresh outside air through the duct 36 and opening 35 and to discharge such fresh air into the room through The unit also operates to recirculate room air by admittingsuch air through the openings 40 in the skirt I8 and discharging the4 air into the room through the opening 3|. The recirculation of room air and discharge of fresh airA into the room serves to maintain the air in the room space in constant circulation. Y 'Ihemeans providing for the introduction of fresh air and recirculation of room ain` is arranged within the central compartment 22. This means is in the form of a motor-blower unit 42 comprising a centrally arranged motor 43 and blowers 44 and 45 arranged respectively at the ends of the motor 43. The motor 43 may be suitably supported by a. plate 46 extending from the rear wall l5 to the front wall I4, and the motor is provided with a horizontal shaft 41 extending from both ends thereof. The blower 44 comprises a Vscrollfshaped housing 48 suitably secured to the cabinet, and a blower wheel 49 fixed to one end of the motor shaft 41. The blower 45 comprises a scroll-shaped housing 58 and a blower wheel 5I fixed to the other end of the motor shaft.

The housing 48 comprises end walls 521 and 53 and a circumferentially extending wall 54 joining the periphery of the end walls 52 and 53. The

end wall 53 is solid, as shown in Fig. 3, and the end wall 52 is provided with an axially arranged inlet opening 55. The blower housing 48 is provided with a radial discharge opening 56 arranged to discharge vertically upward, vand is connected to the outlet opening 38 by a discharge ductsection 51 suitably lined with sound deadening material, indicated at 58.

The housing 58 comprises end walls 68 and 6|, i

both of which have axially arranged inlets 62, and a circumferentially extending wall 63 join-r ing the end walls and 6I. The housing 58 is provided with a radial discharge opening 64 which is arranged to discharge air vertically upward intothe lower end of a discharge duct section 65. The duct section 65 is provided With a sound deadening lining, as indicated at 66, and the upper end of the duct section is connected to a second duct 61 formed by end plates 68 and 69 of a heating coil 18 and by a part of an upright wall 1| at the rear of the unit and a part of the front wall I4. The upper end of the duct 61 discharges into the room space through the outlet opening 3 I.

The heating coil 18 comprises a plurality of parallel horizontal pipes 13 connected at their ends by return bends 14 for serial ows of a suitable heating fluid therethrough; such, for examplefas steam or hot water. As stated, plates 68 and 69 extend across the ends of the eiective heating surface of the coil 18. The coil is also provided with parallel heat `radiating ns or plates 15. The coil is provided with an inlet pipe 16 and a discharge or return pipe 11 which may be connected respectively to the supply and return lines of a conventional heating system. The pipe 16 is provided with a-hand-operated valve 18 for controlling the flow of the heating fluid to the coil 18.

At the rear and upper part of the interior of the cabinet is provided a chamber 88 defined by the upright Wall1| extending vlongitudinally of the 'cabinet behind the ducts 51, .65 and 61, a vertical with the fresh air met opening at and with an' opening 86 in the end wall 83 which communicates with a second and vertically extending chamber 81.

'I'he chamber 81 is deilned by a part of the rear wall I5, by a part of the partition means 28, by the end wall 84 of the duct 51, and by a bottom wall 68. The chamber 81 is entirely closed, ex-

'cept for its communication with the chamber 88 and with the inlet 55 of the blower casing 48.

From the above description, it will be apparent that the blower 44 draws into the unit only fresh outside air from the duct 36 and through the chamber 88 and chamber 81, and the blower 44 a replaceable filter' 92 arranged acrossthe cham# ber 88 and replaceable through anopening 93 in the top wall Il.

The blower 45 draws only room air into the unit through the inlet openings 48 in the skirt I8, and forces such air upwardly into the room through the duct 65, duct 61, and outlet opening 3|. As the'air flows through the duct 61, itsdry bulb temperature is raised, due to contact with the surfaces of the coil 18.

Arranged within the compartment 23 is a. water supply receptacle or cup 95 secured to the cabinet structure and supporting in inverted position a water supply bottle 96 which may be conveniently removed from the compartment 23 through the door 25, refilled and replaced in position in the compartment 23. From an examination ofFigs. 3 and 4, it will be observed that, inthe interest of compactness, the partition means 28 is shelved out, as indicated at 91, for receiving the enlarged part of the bottle 96. The bottle is supported by a rim member 98 secured to the upp'er periphery 'of the cup 95, and the member 98 is provided with an air inlet groove 99 which provides for the maintenance of atmospheric'pressure above the water in the cup, as is well known in this type of water supply means for humidii'lers.

The cup 95 is connected by a horizontal pipe |88 with a water receptacle |8| suitably supported in the compartment 24 and at approximately the same level as the cup 95 so that an adequate amount of water is maintained in the receptacle I8I.

The receptacle |8| forms a part of a humidifying mechanism |82 which also includes a motordriven atomizer unit |83 which operates to draw water from the receptacle upward through a tube |84, to atomize such water and to provide a stream of airl in which the atomired water or mist is entrained and carried away. The mechanism |82 discharges the' stream o air with` water mist upward into the lower end of. a duct which connects at its upper end with a nozzle member |86, the latter extending upwardly through the opening 32 in the top wall. The nozzle |86 is arranged adjacent the outlet opening 3| and is preferably inclined toward the outlet opening 3| so that the stream of air with water mist flowing from the nozzle will contact the heated air stream flowing upwardly through the outlet 3| and thereby provide for the quick and.

complete evaporation of the moisture in the heated air stream and for efiiciently increasing the humidity content of the atmosphere in the room space.

What I claim and desire to secure Patent of the United States is:

1. vIn an air conditioning unit, the combination of an elongated casing structure adapted to be arranged in a room space and operable to circulate and condition the air therein; a pair of spaced upright partition means extending across the interior of said enclosing casingstructure and dividing the latter into a main or central compartment and 'into first and second' end compartments arranged respectively at the ends of said central compartment; said central compartment having spaced air inlet and outlet openings; means in said central compartment defining an Vby Letters 'air passage connecting said inlet and outlet openings; heating means arranged across said passage; water supply means arranged in said first end compartment; water atomizing mechanism in said second end compartment, and having a discharge outlet and operable to deliver' through its outlet a stream' of air with waterrmist entrained therein; conduit means connecting the water supply means a d thev water atomizing mechanism; nozzle means connected to the discharge of said mechanism and having its outlet and extending through a'deilning wall part of said second end compartment at points adjacent the outlet in said central compartment, and be ing inclined toward such outlet so as to provide for the flow of air with water mist entrained I therein outwardly over the outlet in said central' compartment so that the water mist becomes quickly evapratd upon contacting with the heated air from said outlet in the central compartment.

2; In an air conditioning unit adapted to be arranged within a room space, the combination of an elongated casing structure adapted to be arranged in a room space and operable to circulate and condition the air therein; a pair of spaced upright partition means extending across the.interior of said enclosing casing structure and dividing the latter into a central compartment and into iirst and second end compartments arranged respectively at the endsof said' central compartment; said central.compartment having spaced air inlet and outlet openings; means in said central compartment dening an air passage connecting said inlet and outlet openings; blower means providing for the flow of air' through said passage and said outlet into said .room space; heat exchange means arranged in said passage and operable to increase the temperature of the air flowing therethrough; water supply means arranged in saidfirst end compartment; water atomizing mechanism arranged.

in said secondend compartmentandconnected to said water supply means and operable to discharge a stream of air with water` mist entrained therein into said room space at points adjacent" said outlet in the central section. y

3. In an air conditioning unit adapted to be arranged within a room space, the combination of an elongatedcasing structure adapted to be arranged in a room space and operable to circulate and condition the air therein; a pair of` spaced upright partition means extending across the interior of lsaid enclosing casing structure and dividing the latter into acentral comparte ment and into rst and second -end compartments arranged respectively at the ends of said central compartment; said central compartment having` spaced air inlet and outlet openings; means in' said central compartment dening an air passage connecting saidA inlet and outlet openings; blower means providing for the ow of air through said passage and said outlet into said room space; heat'exchange means arranged in said passage and operable to increase the temp peraturev of the air lflowing therethrough; water their respective compartments and capable of being opened to permit access to the water supply means and the water atomizing mechanism.

4. In an air conditioning unit adapted to be arranged within a roomfspace, the combination of an elongated casing structure adapted to be arranged in a room space and operable to circulate and condition the air therein; a pair of spaced upright partition means extending across the interior 'of said enclosing casing structure and dividing the latter into a central compartment and into first and second end compartmentsarranged respectively at the lends of said central compartment; said'central compartment having spaced air inlet and outlet openings; means in said central compartment dening an air passage connecting said inlet and outlet openings; blower means providing for the flow of air through said passage and said outlet into said room space; heat exchange means arranged in said passage and operable to increase the temperatureof the air flowing therethrough; water supply means arranged in said rst end compartment; water atomizing mechanism arranged in said second end compartment and connected to said waterv supply means and operable to discharge a; stream of air with Water mist entrained therein into said room space at points adjacent said outlet in the central section; said iirst and second end compartments being each provided with doors similarly positioned with respect to j their respective compartments and capable of being opened to permit access to said water supplymeans and said water atomizing means.

5. -An air conditioning unit for room spaces,

comprising an enclosing casing divided interiorly into a main warm air compartment and an auxiliary humidifying compartment; said casing including 'a substantially horizontal top wall portion having rst and second outlet openings therein; means in the main compartment defining a flow path for air terminating in said iirst outlet opening; air heating means arranged in said iiow path; water-atomizing means in said auxiliary compartment providing a stream of air with water mist entrained therein; and conduit means for directing said stream of air and water HERMAN rmRsPE'RGER.

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