Патент USA US2112277код для вставки
March 29, 1938. - H. D, EUWER 2,112,277 AIR CONDITIONING UNIT Filed May 4, 1955 4 Sheets-Sheet l VCL@_QG; „WE/WOR Herä'erâ‘ ß. fu Wer ‘SYM ¿á M jTToRA/EY March 29, 1938. H. D. EUWER 2,112,277 AIR CONDITIONING UNIT- ‘ Filed May 4, 1955 4 Sheets-Sheet 2 March 29, 1938. vH. D. EUWER 2,112,277 AIR CONDITIONING UNIT Filed May 4, 1955 4 Sheets-Sheet 3 „MMM ßrromvsy March 29, 1938. H D, EUWER ` 2,112,277 AIR CONDITIONING UNIT Filed May 4, 1935 / OQ Í 4 SheetS-Sheet 4 4Z NÑ i 52p à „VVE/V TOR Herìerz‘ß ¿uwer www d@ /TToR/vfy ' Patented Mar. 29, 1938 UNITED STATE 2,112,277 AIR CONDITIONING UNll'll‘ Herbert D. Euwcr, St. Louis, Mo., assignor to ` American Car and Foundry Company, New York, N. Y., a corporation of New .Hersey Application May 4, 1935, Serial No. 319,811 5 Claims. (Cl. 98-39) CY This invention relates to improvements in air conditioning equipment in general and in par ticular to air conditioning equipment intended These ~and. other objects will be obvious »to one skilled in the art from a study of the following description when taken in conjunction with the for application to railway cars or any application accompanying drawings in which where space is limited. Fig. 1 is a section taken substantially at the C1 center of the improved unit and plenum charn ’ It has been found advisable in air conditioning ` work to draw rather than force the air over the ber; cooling or heating coils in order to avoid as much as possible noise caused by the turbulence ci the 10 air as well as to decrease the power consumption. Fig. 2 is a plan View of the improved unit with parts broken away to more clearly show the in This necessitates the placement of the blower motor and blower between the conditioning coils and the point of air discharge to the space to be cooled andi in railway .work especially this is ex tremely hard to accomplish due to the lack of Fig. 3 shows on the right a front elevation of the plenum chamber and on the left a section ~taken through the unit on line 3--3 of Fig. l; Fig. 4 is an elevational view of the hinged mem available space which is necessary for frequent vention; ` 10 15 ber shown in Fig. 5; Fig. 5 is a. sectional view similar to Fig. 1 show inspection, cleaning and possible repair of the 'ing the blower assembly swung down for inspec unit. Also in railway Work it becomes necessary to provide space to permit ready installation of 20 the unit in the limited car space available. Previous constructions have been made with the blower forcing air through the conditioning coils but such installations were noisy as men tioned above and it was almost impossible to 25 clean the conditioning coils without partially dis mantling the unit. Other constructions have -been made wherein the blower pulled air through the conditioning coils but in order to make the blower motor accessible for inspection it was 30 mounted exterior of the unit and drove the blow ers by means of a long shaft; in such a construc tion proper cleaning of the coils wasA almost im possible. ' It is an object of this invention to provide an 35 air conditioning unit wherein the blower and tion, and ' ' Fig. 6 is a sectional view similar to Fig. _1 show in the blower assembly removed to provide space 20 for workmen. Referring now to the drawings in which like references apply to like parts throughout the various views; the air conditioning unit A com prises a casing providing space for the blower assembly B; eliminator E, heat coils H and cool ing coils C. The plenum chamber or air con ducting member P connects the unit with the dis . charge or duct system of thespace to be cooled. The unit casing is formed by top wall 2, bottom 33 plate 4 having an opening therein with the metal adjacent the opening ilanged downwardly as ~at 6, side walls-8 and end wall i0, the lower edge of which is inclined similar to the bottom plate. A reenforcing member or members I2 surround and reenforce the openinginv the bottom plate blower motor may be placed within the unit cas ing adjacent the point of discharge and so ar ranged as to be readily removable from the unit in order that the space previously occupied may 40 be available to a workman for installation, in spection, cleaning or repair of the unit. A further object of this invention is the pro vision of a motor and blower assembly which may be swung down as a unit for inspection and main y 45 tenance. Another object of this invention is the provision of a motor and blower assembly which is 'readily removable from the air conditioning unit and which assembly has no direct metallic contact 50 with the remainder of the unit. A still further objectof this invention is the provision of a plenum chamber which may be attached to the air conditioning unit by a Work man Working through the space provided for a provided with complemental hinge butts I4, sup 55 removable blower and motor assembly. porting arms 28 and when necessary a drain con and provide a downwardly and inwardly inclined portion for engagement with the blower assembly. The front plate is provided with a suitable open ing for Athe connection of the plenum chamber or any other air discharge means and with hinge butts I4 adapted to support the blower assembly. The blower assembly comprises a pan-shaped plate I6 provided with continuous upwardly and outwardly directed flanges I8 carrying rubber, cork or other vibration dampening and sealing means 20 adapted to bear on the flanges of mem ber I2. The inside of the plate I6 is provided with means to mount the motor M fed by flex ible cable 2| and blower or blowers 22 aswell as 50 brackets 24 for the attachment of spring 26, the other end of which is attached to bracket 21 car ried by the end wall.l The bottom of the plate is 55 2,112,277 2 nection 30 adapted to receive flexible tubing 3|. Bolts or other hinge pintles 32, preferably rubber art without departing from the scope of the ap-` pended claims. ~ What is claimed is: covered, are provided to swingingly and remov 1. An air conditioning unit having a casing ably interconnect the hinge butts, while support- . ing bolts 34 coact with arms 28 and bracket or with at least one flanged opening therein, air ' other means 36 carried by the unit casing. Such conditioning means in the casing, a bloweras a connection between the plate and casing may sembly comprising a ñanged plate member mov be properly termed movable since it permits not ably connected to the casing with a motor driven only a rotational motion but also the removal of blower mounted thereon having a discharge the plate. The blower discharge outlet is adapted to cooperate with a. second opening in 10 10 strengthened by band 38 having a ñange 40 pro viding a shoulder adapted to cooperate with a vibration deadening and sealing gasket 42 cemented or otherwise attached to the end wall 15 adjacent the discharge opening. The plenum chamber or air conducting mem ber P as shown is of irregular contour with the upper wall 44 curved in accordance with the car roof, as shown in Fig. 3, the lower wall 46 curved 20 in accordance with the interior of the car and with the sides 48 converging to thus form an out 'let corresponding to the central duct or dis charge. The end of the plenum chamber yadja cent the conditioning unit is provided with in turned ñanges 50 whereby bolts or other secur ing means 52 may be applied in order to fasten the plenum chamber to the end wall. It is to be _ noted that this attachment may be readily ac complished by a workman reaching in through 30 the space intended for the blower assembly.v The contour -of the plenum chamber is imma terial and- may be changed to suit the installa; tion for which it is'intended. The unit is shown as applied to the car ad jacent the roof, betweenthe bulkhead 54 and above the vestibule ceiling 56, but such a place ment is purely representative as the unit lends itself readily to other positions where space is limited, whether this be in a railway car or some 40 stationary structure. ~ ' It is readily seen that the entire box-like unit A may be assembled complete and easily applied to the car or other structure by removing the pintles 32, unplugging the cable 2l, slipping oiî 45 the tube 3i; and removing the blower assembly, thus providing sp'ace for the workman to attach the preformed and positioned plenum chamber or air conducting member P. It is also seen that when the blower assembly is in the operative 50 position shown in Fig. 1 there is no metallic con _tact between the assembly and the unit due to the dampening members 20 and 42. Assuming the parts in the position shown in Fig. 1, it is only necessary to loosen the bolts 34 and allow the entire assembly to swing down under control of springs 26 in order that a work man may service the motor and blowers or use an air hose or other means to clean the -conditioning coils. In case the Workman needs to make re 60 pairs which .require more working space it is only necessary to remove the assembly as ex plained in the above paragraph. Y While one type of construction has been shown and explained it is obvious that other construc tions, arrangement oi parts and methods of op eration may be employed by one skilled in the the casing, sealing -and sound-deadening means interposed between said ñanges and between said discharge and second opening whereby the as sembly is insulated from the casing. 2. An air conditioning unit having a casing 15 with at least one flanged opening therein, air conditioning means in the casing, a blower as sembly comprising a ñanged plate member mov ably connected to the casing with a motor driven blower mounted thereon having a discharge 20 adapted to cooperate with a second opening in the casing, sealing and sound-deadening means interposed between said ñanges and between said discharge and second opening whereby the as sembly is insulated from the casing, said movable 25 connection permitting movement of- the assem bly as a unit whereby a workman may perform necessary operations on the unit. 3. An air conditioning unit having a casing with at least one ilanged opening therein, air 30 conditioning means in the casing, a blower as sembly comprising a ilanged plate member mov ably connected to the casing with a motor driven blower mounted thereon having a discharge adapted to cooperate with a second opening in 35 the casing, sealing andsound-deadening means interposed between said iianges and between said discharge and second opening whereby the as sembly is insulated from the casing, and springs interposed between the plate and casing to re strain movement of the plate. 4. An air conditioning unit having a casing, air conditioning means> in the casing, a blower assembly comprising a plate member movably connected to the casing with a motor driven 45 blower mounted thereon having a discharge out let adapted to cooperate with an opening in the casing; an air conducting member having in turned flanges positioned adjacent the opening ' and' adapted to be fastened to the casing, said assembly being movable whereby a workman may attach the conducting member to the cas ing from the interior. 5. An air conditioning unit comprising a casing having an air discharge opening in a wall there of, air conditioning means in said casing, a motor driven blower arranged within said casing with its discharge outlet detachably engaged with the before mentioned wall adjacent the air discharge opening, and means forming at least a part of another wall of said casing to which the blower is connected, said means being shiftable to re move said blower from its engagement with the first named wall to permit access to the interior of the casing. i » HERBERT D. EUWER.