US2212356A

US2212356A - Air conditioning system

Info

Publication number: US2212356A
Application number: US286083A
Authority: US
Inventors: Samuel J Shure
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-07-24
Filing date: 1939-07-24
Publication date: 1940-08-20
Anticipated expiration: 1957-08-20

Description

Aug. 20, 1940. s. J. sHURE AIR CONDITIONING SYSTEM Filed July 24, 1939y Wr OR MANUAL ANUSTED I OR F IYED N E N lNvENmR v SAMUEL J. SHURE Bf@ TORNEY Patented Aug. 20, 1940 UNITED STATES PATENT oFFm-E 8 Claims.

This invention relates generally to an air conditioning system and has for its objects the provision of a system of the type stated which contemplates primarily the unique utilization of one or more evaporativecondensers or cooling towers, either of the so-called blow-through or pull-throug types, for exhausting substantial quantities of air from a room, space, or enclosure being conditioned andy controlling the variation and quantity of such exhausted air, which conveniently revitalizes the air in the conditioned space .by the introduction of fresh lair, .which readily admits of adjustment for controlling the quantity of air exhausted from, and the quantity of fresh air admitted into, the space being conditioned, which is extremely eiilcient in heat absorption and humidity control, and which is economical in installation, operation, and maintenance costs.

And with the above and other objects in View, my invention resides in the novel arrangement, combination, and installation of parts presently described and pointed out in the claims.

In the accompanying drawing,

Figures 1 to 4, both inclusive, are schematic views of several air conditioning systems embodying and illustrating the present invention.

Referring now in more detail and by reference characters to the drawing, in the preferred embodiment of my conditioning systerr illustrated in Figure 1, A designates the room or space to be air-conditioned, B a conditioning unit, C a compressor, and D preferably an evaporative condenser, the compressor C being preferably of any conventional type, and the conditioning unit B including a cooling chamber I housing a refrigerant evaporator or cooling coil 2 conventionally connected to the compressor C.

At its one or so-called upper end, the chamber auxiliary duct 5 with the outside atmosphere.

At its opposite or lower end, the chamber I has communication with the intake side of a conventional blower 6, whichl in turn, has communication on its discharge side through a duct 1 and a register or grill 8 with the room A.

The condenser D is preferably of the Westinghouse Aquamiser or EV type and includes a shell or housing 9 so constructed at its one or lower end to provide a water sump I and suitably equipped at or adjacent its opposite lower and upper ends, respectively, with an intake opening Il and a discharge opening I2. Positioned over the sump III and to the upper side of the intake opening II, is a condenser coil I3 conventionally connected to the compressor C and showered with water from a spray-header I4 connected to the discharge side of a pump I5, in turn, connected at its intake side to the sump II).

operatively mounted in the upper portion of the shell 9, is a blower I6 connected at its discharge side to the discharge opening I2 and communicating at its intake side with the interior of the shell 9 for drawing air over the condenser coil I3.

As air passes over the coil I3, the heat of the compressor C will be dissipated primarily by.

be either of fixed, manually controlled, or automatic type, and opening at o-ne end into the duct I9 between the damper 2 I and the intake opening I I and opening at the other end to atmosphere, is an auxiliary duct 22 likewise controlled by a suitable damper 23. f

In use and operation, the damper 2| is normally set so that air is exhausted from the room A througlthe duct I9 while air is admitted through the auxiliary duct 5. The balance of the air required fo-r proper operation of the evaporative condenser D is supplied from the auxiliary duct 22 by appropriate setting of the damper 23. Meanwhile the bulk of the air in the room A is recirculated through the conditioning unit B, being Withdrawn through the duct 3 and returned through the duct 1, together or combined with the fresh air drawn in thro-ugh the auxiliary duct 5.

If desired, the preferred system may be facilely modified by omitting the register or grill 4 and elongating the duct 3 for communication or connection directly with the exhaust duct I9 intermediate the damper 2| and the grill 20, the duct 3 being preferably provided with a suitable control damper 24, all as best seen in Figure 2. Under such circumstances, the rate of recirculation of the recycled air in the room A may be readily controlled by proper adjustment or manipulation of the damper 24. l

Conveniently also the preferred system ymay include an auxiliary conditioning space or plenum chamber E, in which event the evaporative condenser D is installed-directly in the chamber E and connnected lor communicated by an exhaust duct 25 to the ambient atmosphere external. to the system, damper-controlled openings 2f, 21, being substituted, as shown in Figure 3, ft or in lieu of the damper-controlled ducts I9, 2

Similarly the opening 21 may be easily connected tothe recirculation duct 3 of the conditioning unit B and the intake opening H of the t evaporative condenser D connected through invention, I provide an air conditioning system which effects a circulation comprising a positive exhaust from the conditioned space and the introduction thereinto of suflicient fresh air or atmosphere, all of which is especially important in connection with auditoriums, theatres, and the like. The present system also eilects positive exhaust when temperature conditions are such that only ventilation is required. Furthermore, the present system supplies lower temperature air to the evaporative condenser during the cooling cycle, resulting in more ecient and economical operation. Finally, the present system. eliminates the necessity of a separate exhaust fan and thereby reduces both initial installation and operating costs.

It should be understood that changes and modiiications in the form, construction, arrangement, and combination of the several parts of the air conditioning system may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is,

1. An air conditioning system comprising a refrigeration circuit including a compressor, a coolingr element and an evaporative condenser, means for continuously withdrawing a relatively small quantity of air from the space being conditioned and directing said withdrawn air over the cooling element for recirculation to said space, means for continuously exhausting a substantially large quantity of air from'said space and directing the same over the evaporative condenser, and means for feeding outside air over said Cooling element and then into said space in a quantity substantially equivalent to the quantity of air exhausted through the evaporative condenser.

2. An air conditioning system comprising a refrigeration circuit including a compressor, a cooling element and'an evaporative condenser, means for continuously withdrawing a relatively small quantity of air from the space being conditioned and directing said withdrawn air over the cooling element for recirculation to said space, means for continuously exhausting a substantially large quantity of air from said space and directing the same over the evaporative condenser, means for feeding outside air over said cooling element and then into said space in a quantity substantially equivalent to the quantity of air exhausted through the evaporative condenser, and means for optionally bleeding a relatively limited quantity of outside air to the evaporative condenser.

3. In combination with a room, an air con- 4 ditioning system comprising a refrigeration circuitincluding a compressor, cooling Velement and evaporative condenser, air-impelling means open at its intake side to outside air and connected at its discharge side for directing a relatively large amount of `fresh air over the cooling element and into the room, air-exhausting means open at its discharge side to the outside air and being connected on its intake side for withdrawing -a relatively large amount of air from the room and across the evaporative condenser, and means for by-passing la; portion of said exhausted air over the cooling element for recirculation to said space.

4. I-n combination with a room, an air conditioningvsystem comprising a. refrigeration circuit including a compressor, cooling element and evaporative condenser, air-impelling means open at its intake side to outside air and connected at its discharge f side for directing a relatively large amount of fresh air over the cooling element and into the room, air-exhausting meansopen at its discharge side to the outside air and being connected on its intake side for'withdrawing a relatively large amount of air from the room and across the evaporative condenser, means for bleeding a small amount of fresh air into the intake side of the air exhausting means for passage over the evaporative condenser, and means for by-passing an amount of exhausted air over the cooling element for recirculation to the room, said amount of recirculated air being substantially equal to the amount of fresh air bled into the intake of the air-exhausting means.

5. In combination with a room, an air conditioning system comprising a refrigeration circuit having a compressor, cooling element and evaporative condenser, means for feeding a predetermined quantity of outside air across the cooling element and into the room, a plenum chamber opening to said room, an evaporative condenser in said chamber, a shell around the evaporative condenser opening at one end to the chamber and at the other end having communication with outside atmosphere, blower means disposed within the shell for exhausting from the chamber an amount of air substantially equivalent to said predetermined quantity and directing said exhausted air across the evaporative condenser to the outside atmosphere, and means for withdrawing a relatively small quantity of air from the room for recirculation over the cooling element. y

6. In combination with a room, an air conditioning system comprising a refrigeration circuit having a compressor, cooling element and evaporative condenser, means for feeding a predetermined quantity of outside air across the cooling element and into the room, a plenum chamber opening to said room, an evaporative condenser in said chamber, a shell around the evaporative condenser opening at one end to the chamber and at the other end having communication with outside atmosphere, blower means disposed within the shell for exhausting from the chamber an amount of air substantially equivalent to said predetermined quantity 4and directing said exhausted air across the evaporative condenser to the outside atmosphere, means for withdrawing a relatively small quantity of air from the room for recirculation over the cooling element, and means associated withl the evaporative condenser for bleeding into the shell an amount of outside air substantially equivalent to the amount of recirculated air.

7.' In combination with a room, an air conditioning system comprising a refrigeration circuit having a compressor, cooling element and evaporative condenser, means for feeding a predetermined quantity of outside air across the cooling element and into the room, a plenum chamber opening to said room, an evaporative condenser in said chamber, a shell around the evaporative condenser opening at one end to the chamber and at the other end having communication with outside atmosphere, blower means disposed within the shell for exhausting from the chamber an amount o1' air substantially equivalent to said predetermined quantity and directing said exhausted air across the evaporative condenser to the outside atmosphere, means for withdrawing a relatively small quantity of air from the room for recirculation over the cooling element, and means for bleeding into the plenum chamber an amount of outside air substantially equivalent to the amount of recirculated air.

8. In combination withv a room, an air conditioning system comprising a refrigeration circuit having a compressor, cooling element and evaporative condenser, means for feeding a pref` determined quantity of outside air acrossthe cooling element and into the room, a plenum chamber opening to said room, an evaporative condenser in said chamber, a shell around the evaporative condenser opening at one end to the chamber and at the other end having communication with outside atmosphere, blower means disposed within the shell for exhausting from the chamber an amount of air substantially equivalent to said predetermined quantity and directing said exhausted air'across the evaporative condenser to the outside atmosphere, means for withdrawing a relatively small quantity of air from the plenum chamber for recirculation over the cooling element and into the room, and means connected at one end to the condenser shell and at one end to the outside atmosphere for bleeding into the condenser shell a quantity of outside air substantially equivalentl to the amount of air recirculated.

SAMUEL J. SHURE.

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