US2058973A - Aib cooling and conditioning - Google Patents

Description

Oct. 27, 1936. J. f;- GOOSMANN '2,058,973

AIR COOLING AND CONDITIONING APPARATUS INVENTOR MQW-44W. www

Oct. 2 7, 1936. 4 J. GosMANN AIR COOLING AND CONDITIONING APPARATUS Fixled Aug. 10, 1934 3 Sheets-Sheet 2 Il, f 5 gil o k1-3. v I N Dit i t '/Ozr 4. 5 /7, ,5a :Ifo

O O O e O 0 0 o O O-Q O-l lNyEN-roR l gwdg a www Oct. 27, 1936. J. c. GoosMANN AIR COOLING AND `CONDITIONING APGARATUS 5 Sheets-Sheet 3 Filed Aug. l0, 1934 INVENTOR www K Patented` Oct. 27, e1936 UNITED STATES Am COOLING AND OONDITIONIN APPARATUS Justus v(l. Goosmann, New York, N. Application August 10, 1934, Serial No. 739,213

' 9 claims. (OI. ca -129) This invention relates to improvements in air cooling and conditioning apparatus of thportable as well as stationary type.

The broad object of this invention is to pro' vide improved air cooling and conditioning" apparatus in a form adapted for the purposeof producing comfortable conditions in offices, halls, stores, Pullman cars and the like as distinguished l A from larger equipment designed to condition the air in an entire building.

'I'his invention comprises many objects which are successfully secured by meansv of the con'- struction described in full detail in the following specification in connection with the4 attached l5" drawings and pointed out in the appended claims.

This invention resides substantially in the combination, construction, arrangement and relative location of parts, all as will be set forth' in the specication. In the drawings,

Fig. 1 is a front elevational viewof one form of the device of this invention with a portion of the front broken i away to show the interior thereof; V 2g Fig. 2 is a top view of the device on the plane 2-2 of Fig. 1 with some parts broken away; f Fig. 3 is a vertical cross sectional view taken on the line 3-3 of Fig. 2;

Fig. 4 is a cross sectional view taken on the line 4-4 of Fig. 3 with some parts broken away;

Fig. 5 is a detail cross sectional viewtaken on the` line 5-5`of Fig. 3;

Fig. 6 is a vertical' central cross sectional view through-the device; Fig. 7 is an enlarged detail view of the air distributing vanes; Y

Fig. 8 is-a cross-sectional view taken on the line B-Bofrigsyana I j. f Fig. `9 is an enlarged cross sectional View of a modified structure.v f I I .Y The invention )relates to apparatus by means' of which spaces of*V relatively small t Volumes such as roomsolices, `vehicles andthe like maybe`V rendered .more comfortable for the occupants,

- 'Ihe inventioninvolves a relatively" portable' self 1 contained unit/"which may be placed" ywithin thel space vto `be conditioned 'and which in voperation and under the j controlof the operatorvv cools Aand,`

lfIumidif-es` the'ai'r of the space. Generallyfspeak" ing, the apparatuslcdmprises afrefrigerant placed in heat. "exchangel relation with a secondary. cir-vr culatory refrigerant ,whichin turn., is associated withproducd airfcurre'nts fromy which'heat vmay '55 be abstracted.. VIn .addition ,hiunidifyingjfapfga 'solid carbon dioxide.

ratus is employed so that the cooled air may be given the proper moisture content.

In furtherance of the object of the invention the apparatus is constructed so that the air stream is controllably divided into two parts, one 5 of which may be rendered colder than the other, after which the streams may be combined to provide a single cooling air stream of the proper temperature and moisture characteristics. The apparatus likewise includes distributing mech- 10 anism by means of which the combined air stream may be distributed or diffused in the space being treated so as to fully distribute its eects throughout that space.

Referring now in detail to the drawings, the 15 device is shown comprising a cabinet or housing I, which may be of any suitable size, shape and construction to meet the conditions of use. The casing is provided with a front door 2 preferably horizontally mounted thereon, and with a top in the form of separate horizontally mounted cover leaves 3 and 4. The door 2 is provided with an individually removable grill 5. Within the cabinet, as is clear from Fig. 3 there is provided a metallic container or casing 6 having a removable heat insulating closure member 1 access to which may be had by raising the top leaf 3. At sis'indicated the refrigerant which may be in a number of known forms but isA preferably The bottom wall of the casing 6'is provided bythe top wall 9 of a closed metallic casing which has a depending leg por' tion I0 having4 considerable vertical and'transA verse extension but being relatively thin in depth in a horizontal plane,` as is clearfromFig. 3. 35

The lower end of this leg IIJ is connected by a series of smalll metal tubes II nearthecbottom to the bottom of a similar Ymetallic leg or ,casing |3which has relatively large extensionin a Ver tical and `horizontal direction, but,isj1relati vely shallow in depth `in a horizontal direction. The i tubes V Il preferably incline upwardly from the lower endA of leg IIJ to `the lower` end foff` leg I3. The top of leg I3 is connected `bya pipe`I4 to* the bottom of a metallic chamberj.l5`fwhich"is=45 connected- ,from a point aboveL the bottoni thereofbya pipe. IG'ftof'the top OfQthelegQIILi The:leg yIIl,rpipes.II;z leg I3,.pipe|4; tank, I5 and`- pipe I Ilv Aprovide ia closed'ciroulatory systeml whichi-contains the secondary.refrigerantfwhich 1.50". i

may be any one of anumber ofwellknown liquids usually' employed for rvsuch purposa assfor, ex.` ample alcohol. It will. be. noted' that `the parts;7

are so related that the send refrigerant rests directly upon the, wall `.9 ywhich forms 'the vtop of a "|55 portion of this circulatory system and adjacent the point of delivery of the secondary refrigerant into the leg I0, after it has absorbed heat from the air stream. It might be noted that in accordance with well known principles in the art and'when desirable, heat insulating pads of various thicknesses may be interposed between the refrigerant 8 and the wall 9 to retard the rate of heat transfer from the secondary refrigerant to the solid refrigerant.

As is clear from the figures, the tubes II are provided with fins I2 to provide larger surfaces of contact between the circulatory system and the air stream. 'Ihe lower portion of the cabinet I is provided with a metallic lining casing I1 which extends to the casing 6 and is provided with an air opening I8 therethrough in which is mounted an adjustable damper I9 pivotally supported upon the bracket I9' by means of a shaft I9 which extends through to the front of the casing as shown in Fig. 6, and ls provided with an operating knob I9. When the damper is in the position shown in Fig. 3 air may pass through the opening I8 from both sides of the leg I3 or from the two chambers formed thereby in conjunction With the baille wall 29.

The member I8 is mounted in the intake casing 20 of a blower 2I of any suitable form. At 22 is the discharge port of this blower. The blower is operated by means of a small electric motor which is supported upon the horizontal wall 25. This wall, together with the walls I, serves to further insulate the inner metallic walls of the apparatus from direct exposure to the atmosphere. The motor 23 is provided with an extending casing 24 which houses the worm 26a (Fig. 2) and the meshing worm wheel 26 which is mounted upon the same shaft with the crank 21. Mounted in the bottom of the cabinet, so as to extend under the two chambers of the device, is a water pan or receptacle 33 positioned so that air entering the casing through the screened openings 34 and 36 will pass over the top thereof.

Located above the pan is a separably mounted filter plate, slidingly supported upon brackets, consisting of two perforated plates 30 and 3l which have interposed between them a fine mesh fabric filtering material 35. Supported by the plates 30 and 3| and passing through the ltering material 35 are the wicks 32 which depend into the water contained in pan 33. Owing to the capillary action of the wicks 32 the waterin pan 33 is drawn into the filtering material 35 whereby the latter is constantly maintained in a wet condition.

The warm air entering the casing ythrough screened openings 34 and 36 passes over the top of the water pan333 through the wet filtering material 35 into the respective cooling chambers I0' and I 3 to be cooled and de-humldified.

The water in pan 33 may be cooled by an extension I00, (Fig. 9) of cooling surfaces attached to the cold leg I0 on one side and the warm leg I3 on the other.

It receives further cooling by the suction of blower 2l which draws the water vapor above the water level in pan 33 along with the entering air into the cooling chambers I0' and I3' where it condenses upon the various cooling surfaces.

At 40 ls a casing which is connected to the discharge port 22 of the blower, and is shaped so as to be substantially rectangular at its discharge mouth which is mounted in back of the grill 5. As is clear from Fig. 6, there is pivotally supported within this casing on the fixed horizontal bars 48, 'I0 and 1I, two sets of vanes 50 and 5I. 'I'he vanes of each set are pivotally connected together by the bars 4'I and 49 respectively so that they may be given conjoint pivotal movement. The upper vanes 50 are provided with a lever 46 and the lower vanes 5I are provided with a lever 46', which levers are pivotally connected to a vertical bar 45 which in turn is pivotally connected by the link 44 (see Fig. 2) to the bell crank lever 42, 43, in turn pivotally supported on the casing 40 at 4 I Arm 42 of the bell crank lever is pivotally connected through link 28 to the crank 21.

Pivotally mounted upon horizontal axes are the transverse varies 52 which extend from side to side across the grilled opening of the cabinet. These vanes 52 are pivotally mounted on the stops 53 of the casing 40 and are all pivotally connected together by means of a link 53 which has an operating extension 54 which projects through the front of the cabinet. As will be apparent, by moving the operating extension up and`down the horizontal deflectors 52 may be positioned to direct the issuing air stream either downwardly, horizontally or upwardly. The circulatory system is provided' with a drain cock I0 (see Fig. 5) yby means of which the secondary refrigerant may be removed therefrom.

Additional liquid may be introduced into the circulatory system through the removable plug into tank I5. This tank is provided as an expansion chamber to provide the necessary volumetric space to accommodate the changes in volume of the secondary refrigerant under the varying temperatures which it may encounter in ordinary use. Thus, when the apparatus is not in use and is at room temperature the secondary refrigerant requires considerably more volume than it does when the apparatus is in operation. The casing 6 is provided with a discharge pipe 6b .i leading to the exterior of the casing, and provided with a pet cock 6a. The purpose of this tube is to conduct the carbon dioxide gas which is formed as the solid sublimes, to the exterior of the .casing. It is of course apparent that when desired this gas may be discharged around the apparatus yand within the cabinet, and particularly around the motor 23 to aid in keeping it cool.

Any surplus of carbon dioxide vapor may be discharged from the casing through a tube or hose connection into the outside atmosphere or any other convenient point of exit, such as windows, sewer connection', wall partitions and the like.

The front of the cabinet is provided with a window 60 in back of which a signaling vane 63 may move. This vane is mountedy upon a bell crank lever 6I pivotally supportedin the casing and provided at the opposite end with a float 62 positioned to float in the liquid in the pan 33. When the liquid level gets low the signal vane will appear in the window 60, indicating this fact. At 54 and 65 are instruments for indicating the temperature as well as the relative humidity of the two air streams that are passing upwardly on opposite sides of the partition formed by the leg I3 and the baille 29. At 90 (Fig. 1) is the control knob for the switch which turns the motor 23 off and on in an obvious and well known way.

The modification of AFig.9 differs only from the structure previously described in providing a metallic pipe connection I00 between the extreme lower ends of the legs I0 and I3. This pipe |00 is submerged in the water in the pan 33 for the purpose of lowering its temperature.

since they are of relatively different tempera- 'L tures, as will be obvious from the following dep scription and the operation of the apparatus. In the operation of the apparatus when the motor is `Iii) running the blower will draw air from outside of the cabinet through the grilled openings 3l and 36 by the bottom thereof over the top of the water in the pan 33 and around the wicks 32 and thence upwardly through the filtering material of the perforatedplates 3|! and 3| and the screen I5 into the two chambers oi' the cabinet.

Referring to Fig. 3, the left hand stream of air will pass around the tubes I I and the ns I2 and upwardly along the legs Ill and I3. This portion of the stream will travel upwardly into the intake 2li and the blower and in maximum amount whenthe chamber I9 is in the position shown. Likewise, the other streamof air will pass upwardly through the right hand chamber and into the intake 2li on the opposite side of the chamber. 'Ihe air in the left hand stream will have considerable heat and moisture abstracted therefrom while the air in the right hand stream will have considerably less heat abstracted therefrom. The two streams will then mix in the blower and be discharged by the blower through the discharge port 22 into the casing 40.

The air inpassing around the wicks and over the water in the pan will pick up moisture in an amount depending upon its temperature and its rate of movement through the apparatus. Its

rateof movement canv obviously be controlled by i controlling the speed of thev blower and the size of the openings 34 and 36 which may be provided kby doors, as indicated in dotted lines for example in Fig. 3. By positioning the damper I9 at various angles the relative amounts of air going through the two compartments of the cabinet can be varied so that the temperature and humidity of the resultant stream which issues from v the blower can be readily controlled.

The secondary refrigerant will give up heat through the wall 9 to the primary refrigerant 3.A It will increase in density and move downwardly through the leg I 'where it may pick up some heat and will continue in itsmo'vement through the tubes I I into the warm -leg I3. In passing through the tubes II it will pick upadditional heat and will be decreasing in density. The liquid will then iiow upwardly through the warm leg I3 getting warmer and warmer, and will' pass through pipe I4 into the tank I5. From' there it will return through pipe I6 with its maximum heat content into the cold leg at the top adjacent the wall 3. Here it will give up its heat and continue its movement through the closed circulatory system, all in accordance with well known principles. It will be apparent that when desired the damper I9 may be positioned to entirely stop the flow of air ,through either chamber and between these limits the resultant stream of air issuing from -the blower can be readily controlled as well as the humidity thereof.

The air after it issues into chamber I4 will pass out through the vanes 50, I and 52, and through the grill 5 into the space to be treated. As previously stated, the vanes 52 may be manually positioned to deflect the air downwardly, horizontally or upwardly. The air is given a distribution from side to side by means of the vanes 50 and 5I which are slowly oscillating back and forth.

As will be clear from Fig. 2, these vanes are connected` to the operating link I4, so as to be always relatively displaced approximately 90 degrees. By means of the crank 21 these vanes will be caused to oscillate back and forth on their vertical axes so that the upper portion of the stream will be directed in one direction with respect to the direction of movement of the air in the lower portion of the stream. Thus the discharging air will be well diffused in horizontal planes.

From the above rdescription it will be apparent thatthis invention resides in certain principles of culatory system within said cabinet having a part thereof for dividing the cabinet into two chambers, a primary refrigerant in heat exchange relation with said circulatory system, a blower Within said cabinet positioned so that its intake port provides the outlet for said chambers, and means for connecting the discharge outlet of the blower with the discharge outlet of the cabinet.

2. A device of the typedescribed comprising a cabinet having air vinlet openings and an air outlet opening, a metallic secondary refrigerant ciry culatory system within said cabinet having a part thereof for dividing the cabinet into two chambers, a primary refrigerant in heat exchange relation with said circulatory system, a blower within said cabinet positioned so 'that its intake port provides the outlet for said chambers, means for connecting the discharge outlet of the blower with the discharge outlet of the cabinet. and means in the bottom of said cabinet adjacent the air inlet openings for generating water vapor.

3. A device of the type described comprising a cabinet having air inlet openings and an air outlet opening, a metallic secondary refrigerant circulatory system within said cabinet having a part thereof for dividing the cabinet into two chambers, a primary refrigerant in heat exchange relation with said circulatory system, a blower within said cabinet positioned so that its intake port provides the outlet for said chambers, means for connecting the discharge outlet of the blower with the discharge outlet of the cabinet. and a controllable chamber in the intake port of the blower for controllably varying the amount of air flowing through said chambers.

4. A device of the type described comprising a cabinet havingair inlet openings and an air outlet opening, a metallic secondary refrigerant circulatory system within said cabinet having a part thereof for dividing the cabinet into two chambers, a primary refrigerant in heat .exchange relation with said circulatory system, a blower within said cabinet positioned so that its intake port provides the outlet for said chambers, means for connecting thedischarge outlet vof the blower with the discharge outlet of the cabinet, means in the bottom of said cabinet adinet having inlet openings at the bottom'- and an outlet opening above them, means for divid'- ing the interior of the cabinet into two chambers, refrigerating apparatus in one of said chambers, a blower within said cabinet mounted so that its intake port provides a common outlet for said chambers, means for connecting the discharge port of the blower with the outlet opening of the cabinet, movable vanes mounted adjacent the outlet opening of the cabinet, and means for driving the blower and continuously oscillating the vanes.

6. In a device of the type described the conibination comprising a cabinet having two compartments, a closed metallic circulatory system for a liquid refrigerant mounted in one of said compartments, means for cooling the liquid, a water container at the bottom of said cabinet, means for drawing air through said compartments and discharging it exteriorly of the cabinet, and means connected to said circulatory system for cooling the water in the water container.

'1. In a device of the type described the combination comprising a cabinet having two compartments, a closed metallic circulatory system for a liquid refrigerant mounted in one of said compartments, means for cooling the liquid, a

means fordrawing air through lsaid compartments and discharging it exterior of the cabinet, means connected to said circulatory system for cooling the water in the water container, and means for indicating the level of the water in the container.

8. In an air conditioning apparatus comprising a cabinet having an inlet and an outlet, the combination with means for moving air through the cabinet from the inlet to the outlet and means for cooling the air as it passes through the outlet, of a plurality of vertical vanes pivotaily mounted in the outlet opening, and means for continuously oscillating said vanes While the apparatus is in operation to direct the discharged air from side to side.

9. In an air conditioning apparatus comprising a cabinet having an inlet and an outlet, the combination with means for moving air through the cabinet from the inlet to the outlet, means for cooling the air as it passes through the outlet .and power means for operating the cooling means, of a plurality of vanes disposed in the outlet opening for oscillation on a vertical axis, and means connecting the vane with Athe power means to effect continuous oscillation thereof on their vertical. axes.

JUSTUS C. GOOSMANN.

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