US1937829A

US1937829A - Air conditioner

Info

Publication number: US1937829A
Application number: US614909A
Authority: US
Inventors: Walter L Mack
Original assignee: Air Way Electric Appliance Corp
Current assignee: Air Way Electric Appliance Corp
Priority date: 1932-06-02
Filing date: 1932-06-02
Publication date: 1933-12-05
Anticipated expiration: 1950-12-05

Description

W. L. MACK AIR CONDITIONER Filed June 2, 1932 N Q QYQQM Patented Dec. 5,193

, UNITED STATES PATENT orrlca 6 Claims. 257-137) This invention relates to room heating and air conditioning and has for its object to provide an air conditioning device which can be installed in the wall of a room so as to be accommodated l in a cavity formed in said wall. 1

More specifically, the invention contemplates the type of air conditioner in which the air to be conditioned is carried through the conditioner casing by means of a blower located in said casl ing, and passed through a heat transfer element also mounted in said casing, and consists in the arrangement of the various parts so as to secure a conditioner of relatively shallow depth which can be accommodated in a cavity in a wall of a normal dwelling house, and yet which will function eiliciently to condition air in the room.

Another object of the invention is to provide a conditioner which will secure a maximum uniiormity in the condition of the air on which it 20 operates.

plates a conditioner which withdraws air from the room below approximately a four foot level and returns it below-this level, in a horizontally moving stream. It is my object to secure this result in aheater which can be installed in a wall as aforesaid.

with these and other objects in view my invention consists'in the combination and con struction and arrangement of the various parts thereof, whereby the objects contemplated are attained, as more fully set forth in the accompanying specifications, pointed out in my claims, and illustrated in the accompanying drawing, in which:

Fig. 1 is afront elevationof the conditioner, parts being broken away to better illustrate the construction.

Fig. 2 is a vertical transverse sectional view of the same.

The present application is a continuation in part ofmy applications Serial No. 400,018, filed October 16, 1929 issued December 13,1932, as Patent No. 1,890,521, and Serial No. 477,830, flied August 26, 1930.

I provide a heater casing having a base comprising'a bottom wall and angle iron legs 11, a rear wall 12, end walls '13, and a top wall 14.

A pair of angle iron rails 16 and 17 are secured at their ends by means of screws to brackets 18 attached to the end walls 13. (See Fig. 2.) To therear faces of the rails 16 and 17 is permanently secured an insulator wall 19, forming together with said rails' 16 and 1'7, an integral insulator wallunit. I 55 Between the brackets 18 and front and rear To this end, the invention contemthe former accommodating the blower unit D.

and the latter serving to allow for change in direction from the vertical to the horizontal in the air stream as it strikes the inclined deflector wall 21.

Each of the compartments A, "B, C extend horizontally, one above the other, and occupy substantially the full depth of the casing from front to rear.

The blower D is of the type including a motor 24, motor shaft 25, and centrifugal fan rotors 26, mounted in fan casings 27, at opposite ends of the motor 24, and axially aligned therewith. Air enters through axial openings 28 and leaves through top delivery openings 29, from whence it is delivered directly upwardly through the heat transfer element 22. t

The front panel 30 carries the'upper grille 31 and the lower grille 32 is mounted for adjustment relative to the panel. Air enters the conditioner through the lower grille 32 and leaves 35 through the upper grille 31.

In-relation to its shallow depth, this conditioner will handle a large volume of air, and depends for conditioning eificiency on moderately changing the temperature of large quantities 99 of air, thence discharging the conditioned air horizontally below the breathing line (below substantially a four foot level above the floor) The motor blower unit is designed for normal operation at around 1200 R. P. M., and may be provided with speed control mechanism (not shown) for varying its rate from 900 to 1500 R. P. M. The velocity of the air through the outlet will range from not less than substantially 125cubic feet of air per minute at 900 R. P. M. 100

lliifi 111 8. 37" uni bodied in the present invention being that of relatively low temperature change in the air handled, with relatively high distribution of the air in relatively large quantities. The temperature change, i. e., the differential in temperature between a normal room temperature of and the outlet temperature of the air leaving the heater, will range from approximately 72 at 1500 R. P. M. to around at 900 RP. M., the outlet temperaiure obviously being higher with a slower air By arranging a heating unit in a relatively shallow heater casing, substantially filling the casing from front to rear and with its longitudinal axis horizontal, passing air through said unit in large quantities, and thence discharging said air into a room in a horizontal direction below a normal or average breathing plane, I secure not only a very efficient heat distribution, keeping the heated air down in the living zone rather than allowing it to rise to the ceiling, and distributing it in large quantities in a horizontal direction into said living zone, but also achieve a type of circulation which produces comfort at a somewhat lower temperature than. has been necessary in old methods.

Secured to the member 1'7 is a baffle plate 35 which extends the air passage .A upwardly to such an extent that the air will rebound from the walls 21 and 14 with a sufficiently downward inclination to overcome the effects of. the buoyancy of the heated air. I have found'that without this baille plate, and with the upper chamher "(2" the'full depth of the grille 31,- unobstructed, the air will pass through the grille with an upward inclination, probably due to the expansion of the air stream in the wider passage openingwhich would thus be formed as compared with the constriction of the passage opening in the construction shown, and the overhanging of the upper wall 14 beyond the upper edge of the baffle plate 35, insuring the proper depressing of the discharged stream.

The present invention comprises the arrangement of the various parts of a heater to secure these results in a wall heater which can be accommodated in a cavity in a wall of a normal dwelling house.

I claim as my invention:

1. In an air conditioner, an upright casing of sufficiently shallow depth to be accommodated in a cavity in a wall of an ordinary dwelling house, said casing having a vertical air passagewaydefined between vertical walls of said casing disposed intermediate the top and bottom of the casing and occupying substantially all of the space from front to rear of said casing, and having upper and lower horizontal compartments extending from end to end of the casing and dis posed respectively above and belowsaid passageway, a heat transfer element substantially filling said passageway from front to rear thereof said element including a central core and spaced vanes extending laterally therefrom in vertical planes,

compartments to the other, the casing having intake and discharge openings communicating respectively with said compartments, and a blower comprising a motor, a motor shaft, and fan ro tors mounted coaxially-on said shaft at opposite ends of the motor, said-blower being disposed in one of said compartments with the blower axis extending longitudinally of said compartment.

2. In an air conditioner; an upright casing of sufficiently shallow depth to be accommodated in a cavity in a wall of an ordinary dwelling house, said casing having a vertical air passageway defined between, vertical walls of said casing disposed intermediate the top and bottom of the easing and occupying substantially all of the space from front to rear of said casing, and having upper and lower horizontal compartments extending from end to end of the casing and disposed respectively above and below said passageway, a heat transfer element substantially filling said passageway from front to rear thereof said element including a central core and spaced vanes extending laterally therefrom in vertical planes, the edges of said vanes cooperating with said vertical walls to form therewith a plurality of air passages extending vertically from one of said compartments to the other, the casing having intake and discharge openings communicating respectively with said compartments, and a blower of an elongated, centrifugal type, disposed in one of said compartments with the blower axis extending longitudinally of said compartment.

3 In an air conditioner, an upright casing of sufficiently shallow depth to be accommodated in a cavity in a wall of an ordinary dwelling house, said casing having a vertical air passageway disposed intermediate the top and bottom of the casing and occupying substantially all of the space from front to rear of said casing, and having upper and lower horizontal compartments extendingfrom end to end of the casing and disposed respectively above and below said passageway, a heat transfer element substantially filling said passageway from front to rear thereof and constructed to provide a plurality of air passages extending vertically unbrokenly from one of said compartments to the other, the casing having intake and discharge openings communicating respectively with said compartments, and a blower of an elongated, centrifugal type, disposed in one of said compartments with the blower axis extending longitudinally of said compartment, the rear wall terminating in an inclined deflector wall communicating with said discharge opening for deflecting the air stream horizontally therethrough.

4. In an air conditioner, an upright casing pro vided intermediate its top and bottom with a vertically extending air passage, a blower in a space below said air passage to direct a stream upwardly therethrough, a heat transfer unit in said air passage for contact with the air passing upwardly therethrough, the upper region of the rear wall of the casing being inclined upwardly and forwardly and thence inclined horizontally forwardly, the casing being provided with an intake grille communicating with the blower compartment and with an outlet grille projecting downwardly from the forward extremity of the top wall of the casing, and an upwardly projecting baiile plate forming a continuation of the forward wall of said air passage, and positioned in a plane spaced rearwardly from said discharge grille and rearwardly from the forward edge of the upper wall of the casing.

5. In an air conditioner, an upright casing provided intermediate its top and bottom with a vertically extending air'passage, a blower in a space below said airpassage to direct a stream upwardly therethrough, a heat transfer unit in said air passage for contact with the air passing upwardly therethrough, the upper region of the rear wall of the casing being inclined upwardly and forwardly and thence inclined horizontally forwardly, the casing being provided with an intake grille communicating with the blower compartment and with an outlet grille projecting downwardly from the forward extremity of the top wall of the casing, the forward wall of said air passagebeing positioned in a plane spaced rearwardly from said discharge grille, and the upper edge of the forward wall of the discharge passage being positioned at such a distance from the top wall of the casing as to cause the air stream to impinge against said inclined wall portion and top wall so as to be reflected downwardly.

6. In an air conditioner, an upright casing provided intermediate its top and bottom with a vertically extending air passage, a blower in a space below said air passage to direct a stream upwardly therethrough, a heat transfer unit in said air passage for contact with the air passing upwardly therethrough, the casing being provided with an intake opening communicatingwith the blower compartment and with an outlet grille projecting downwardly from the forward extremity of the top wall of the casing, and a baflie plate projecting upwardly behind said grille, forming a continuation of the forward wall of said air passage, and positioned in a plane spaced rearwardly from said discharge grille and rearwardly from the forward edge of the upper wall of the casing.

' WALTER L. MACK.