US2753697A - Condenser and compressor mountings for household refrigerators - Google Patents

Description

July 10. 1956 E. A. BAILLIF CONDENSER AND COMPRESSOR MOUNTINGS FOR HOUSEHOLD REFRIGERATORS Filed Nov. 1, 1954 7'0 EVAP.

3 Sheets-Sheet 1 F M EVA/i INVENTOR.

July 10. 1956 E. A. BAILLIF CONDENSER AND COMPRESSOR MOUNTINGS FOR HOUSEHOLD REFRIGERATORS 3 Sheets-Sheet 2 Filed Nov. 1, 1954 IIIVVENTOR.

July 10. 1956 E. A. BAILLIF 2,753,697-

CONDENSER AND COMPRESSOR MOUNTINGS FOR HOUSEHOLD REFRIGERATORS Filed Nov. 1, 1954 3 Sheets-Sheet 3 f? &

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United States Patent CONDENSER AND COMPRESSOR MOUNTINGS FOR HOUSEHQLD REFRIGERATORS Ernest A. Baillif, Evansville, Ind, assignor, by mesne assignments, to Whirlpool-Seeger Corporation, St. Joseph, Mich, a corporation of Delaware Application November 1, 1954, Serial N 0. 465,920

10 Claims. (Cl. 62117.4)

'The present invention relates to condenser and compressor mountings for household refrigerators, and is particularly concerned with reduction of the amount of vibration which is transmitted from the condenser precooler and the motor compressor to the cabinet.

One of the objects of the invention is the provision of an improved condenser mounting for mounting a refrigerator condenser upon a cabinet by means of which the condenser is positively secured, but is permitted to vibrate without transmitting anything except a minimum amount of vibration to the cabinet.

Another object of the invention is the provision of an improved condenser and motor compressor mounting which is simple in construction, which permits the vibration of the condenser and the motor compressor, and which isolates the vibration of these parts from the cabinet so that noise will be reduced to a minimum.

Another object of the invention is the provision of an improved condenser and motor compressor mounting which is simple in construction, which includes a minimum number of parts, which gives a suflicient amount of stability to the condenser and motor compressor, and which may be manufactured at a very low cost.

Another object of the invention is the provision of an improved cabinet-condenser-motor compressor assembly, including a Wire condenser which is supported on the cabinet with resilient mountings that permit a predetermined amount of vibration of the condenser and compressor while transmitting a minimum amount of vibration to the cabinet and thus effecting a substantial reduction in the noise of operation.

Another object of the invention is the provision of an improved mounting for condensers and compressors which is adapted to reduce to a minimum the transmission of vibration from the motor compressor to the base on which it is mounted, and to other parts of the assembly, thereby reducing the audible vibration or noise to a minimum.

Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings, in which similar characters of reference indicate similar parts throughout the several views.

Referring to the three sheets of drawings accompanying the specification,

Fig. 1 is a fragmentary rear elevational view of a cabinet embodying the invention and showing the motor compressor and condenser in rear elevation;

Fig. 2 is a fragmentary top plan view showing the rear part of the cabinet with the motor compressor and condenser;

Fig. 3 is a fragmentary side elevational view showing the same parts, partially broken away to show the structure of the mounting;

Fig. 4 is a fragmentary sectional view of the upper condenser mounting bracket;

Fig. 5 is a fragmentary view in perspective showing the details of structure of the condenser tubing and heat radiating wires;

Fig. 6 is an enlarged sectional view taken onthe plane of the line 6-6 of Fig. 3, looking in the direction of the arrows, showing the lower parts of the condenser mount- Fig. 7 is a diagram of the condenser coils when a lesser number of the coils are employed for the function of precooling, such as two passes from the bottom to the top of the condenser;

Fig. 8 is another diagrammatic view of the condenser coils, showing a modification in which a larger number of coils are employed for pre-cooling, such as four passes from top to bottom.

Referring to Figs. 1-3, 10 indicates in its entirety the household refrigerator cabinet, which preferably includes an outer metal shell 11, having inwardly extending attaching flanges 12 at the back for supporting a rear panel 13.

The rear panel 13 is provided with a suitably stamped depression 14 providing room for half of the motor compressor 15, which is arranged at the lower rear corner of the cabinet with substantially half of the motor compressor inside of the rectangular outline of the shell 11 and half of the motor compressor housing outside of the rectangular outline of the shell 11.

The back panel may be welded to the attaching flanges 12 of the shell; and these attaching flanges may also be used to support a condenser mounting frame 16, shown in Fig. 1. This condenser mounting frame includes a transverse frame member 17 of steel, which extends from side to side of the back panel, being secured in place by self-tapping screws 18, which pass into an aperture in the attaching flange 12 and back panel 13 in each case.

The transverse frame member 17 has two straight portions 19 and 29, one located adjacent each end, and two diagonal, backwardly extending portions 21 and 22 supporting a central bridge portion 23, which passes about the motor compressor. The diagonal portions 21 and 22 may support compressor brackets 24, each of which has a vertical flange 25 secured to the diagonal portions 21 or 22, and each of which has a horizontal flange 26 provided with an aperture for a screw bolt 27.

The screw bolt 27 is surrounded by a cylindrical metal cup 28 containing a coil spring 29; and an angle bracket 30 is carried by each side of the motor compressor 15 and has a horizontal flange with an aperture for the bolt 27, the flange resting on the spring 2%.

A washer and nut 31 hold the motor compressor bracket 30 against the spring, but permit the motor compressor to vibrate freely because the bracket 30 has an enlarged aperture; and the nut is loosened under operating conditions.

When the equipment is to be shipped, the motor compressor is clamped in rigid condition by tightening the nut and washer until the cup 29 engages the motor compressor bracket.

The straight portions of the condenser supporting frame 16 support a pair of upwardly extending, diagonal frame members 32, 33, which are joined at the top by a horizontally extending supporting flange 34. At their lower ends the frame members 32, 33 are fixedly welded to the straight portions 19 and 29 of the transverse frame member 1'7.

The inverted V- shaped frame member 32, 33, 34 projects upward in spaced relation to the back panel and is adapted to support the condenser tubing 35, which preferably includes a multiplicity of vertical passes joined by U-shaped formations 36, 37 at the bottom and top.

The condenser tubing is provided with a multiplicity of heat radiating wires, 33 on the outside, and 3? on the inside, these wires being welded to each of the tubing passes and extending from side to side of the complete condenser assembly.

The condenser assembly preferably includes a straight portion 40 and two inwardly curved portions 41 and 42 at the ends so that the condenser is bowed outwardly from the cabinet to form a kind of chimney with the spaced wires 38, 39 for guiding the air upward as it comes from the motor compressor unit -15.

The condenser assembly is supported adjacent its upper end by a clamping bracket 43, which consists of a pair of metal plates, these metal plates engaging the two central passes of tubing 35:: and 35b.

The two plates 44 and 45 have their bodies welded together at '46 between the tubes 35a and 35b and are formed with partially cylindrical clamping formations 47, clamping the tubes between their ends. The innermost plate 44 of the clamping bracket 43 has a horizontal flange 48, which is provided with a headed screw bolt 49, the head of which is welded or otherwise secured against the flange 43, with the shank of the bolt 49 in an aperture 59.

The horizontal flange 34 of the condenser supporting frame 16 has an enlarged aperture 51 surrounding the bolt 49, which passes upward through this aperture; and flange 34- supports a metal cup 52 surrounding the bolt 49 and containing a helical compression spring 53-. The bolt 49 supports a spring seat in the form of a cupped washer 54 having a central aperture 55 and engaged by a nut 56 threaded on the end of bolt 49.

Thus the bracket 43 is suspended by bolt 4% and supported by compression spring 53 on the frame 16. This provides support for the upper end of the condenser assembly; and additional support is provided by the springs '7 and 58 for the lower parts of the condenser assembly. These lower parts of the condenser assembly tend to swing in toward the cabinet at their lower end; but this is prevented by the springs 57 and 58, each of which is of the construction shown in Fig. 6.

Each spring, such as spring 57, has a helical central portion 59, terminating at the tube end in a transversely extending arm or hook 60, which has a partially cylindrical portion 61 engaging the condenser tube 35c, which is secured to the frame 16 by the spring 57. The other end of spring 57 is formed with a full circular loop 62 located centrally of the helical spring 57' and adapted to receive screw bolt 63, which passes through the frame member 32 and has a washer and nut 64 clamping the spring 57 to the frame member 32 at this end of the spring.

The weight of the condenser assembly tends to cause the lower end of the condenser to swing in toward the cabinet; but the initial compression of the springs 57 and 58 resists this horizontal component and keeps the condenser assembly suitably spaced from the cabinet, as indicated at 65 in Fig. 3.

The present condenser arrangement contemplates the use of two or more passes of the tubing 35 for use 'as a pro-cooler for receiving compressed and heated gaseous refrigerant mixed with oil from the compressor outlet through the conduit 66, which extends directly from the compressor outlet 67 to the tubing passes that are on the left side in Fig. l.

The motor compressor includes a motor in an upper housing member 68 with its shaft directly connected to the compressor 69 in the lower housing part 70, which also serves as an oil sump, immersing the compressor 69 in oil.

In Fig. l the left passes 35d, 35e, 35f, 35g, 35/1, and 351 serve as such a pre-cooler for partially condensing the refrigerant coming directly from the compressor outlet 67 and cooling this gaseous refrigerant.

The partially condensed refrigerant and oil enters the motor housing 68 at the top, at the point 71; and the partially condensed refrigerant runs down with the oil over the motor parts to cool them, and is again vaporized, while the oil drops into the oil sump 70.

The rest of the tubing passes 35, toward the right of those already mentioned, serve as the main condenser, and'are connected to the top of the motor housing at 72- for receiving 'hot gaseous refrigerant in the form of vapor from the top of the motor housing 68 and cooling it to effect condensation.

The air surrounding the vmotor housing 68 and compressor housing 70 is heated, and tends to pass upward through the chimney, which is formed by the compressor and condenser assembly, further cooling the wires and condenser tubing.

The refrigerant returns to the compressor from the pass 35f through tubing 73 to the compressor inlet at 74. In the modifications shown by the diagrams in Figs. 7 and 8, a lesser number of passes of the condenser assembly are employed for the pre-cooler; for example, in Fig. 7 two passes at the left are provided for the pre-cooler; and in Fig. 8 four passes are employed for the pre-cooler.

The number of coils or passage of coils required for the pre-cooler may depend on the size of the refrigerator, or it may depend on the ambient temperature in which the refrigerator is to be used; and sufiicient precooler coils should be employed so that enough refrigerant is cooled and partially condensed in the pre-cooler coils to be used in the form of condensed vapor at a predetermined temperature to cool the motor and associated parts, and to maintain the motor at the desired temperature.

The present mounting structure is adapted to reduce the transmission of vibration from the motor compressor to a minimum and to effect a substantial isolation of all vibration audible or inaudible.

In order to prevent or reduce the transmission of vibration from an excitation source tothe base on which it ismounted, various types of flexible fasteners maybe employed.

The degree of flexibility of these fasteners which will produce the optimum results, depends chiefly on the mass of the part being isolated, and the frequency of its vibration.

Assuming that the vibrations are simple harmonic in nature, and that no damping is present, the percentage isolation may be calculated from the following equation:

P=the natural frequency of the spring and mass system:

Percent isolation= (1 l:

where:

LE 27I'W w tl'lo vibrating frequency of the part to be isolated K the spring constant in lbs/in.

W=the weight of the part g=acceleration of gravity For example, if the vibration or forcing frequency is 60 cycles per second, and the static deflection which'the mass would give to the spring if it were suspended by it is inch,-the resultant percentage isolation is about 99%. This static deflection bears the following relation to the weight of the part W and to the spring constant in lbs. per inch, K:

AST: W/K

Thus I find that rubber with a relatively large amount of internal damping, tends to transmit even more vibration than a steel spring of equal stiffness. This is contrary to the very popular conception which tends to be that damping will reduce transmission of vibrations.

This belief is true only in the range of w/P \/2 in which range we cannot operate because this results in no isolation at all, but rather in an increase of vibration transmission over that which there would be without any attempt at isolation.

The present condenser and compressor mounting is constructed to put into practice the foregoing theories and conclusions regarding transmission of vibration and to reduce to a minimum the transmission of vibration from the motor compressor to the cabinet, the associated parts and to the condenser, resulting in a marked reduction in the noise of operation.

It will thus be observed that I have invented an improved condenser and compressor mounting, and an improved pre-cooler arrangement which is simpler in structure and which is adapted to be manufactured at a minimum of cost; and which also accomplishes a substantial reduction in the noise level during the operation of the compressor by reducing the amount of sound that is transmitted into the air by the motor compressor, its associated parts, and the condenser coils and condenser wires.

While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do not wish to be limited to the precise details of construction set forth, but desire to avail myself of all changes within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is:

1. An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transverse frame member secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly extending frame having an upper part located centrally of the back of the refrigerator and having lower parts located adjacent the side walls of the refrigerator on the back wall, said frame being carried by said transverse frame member, to which the frame is secured at its lower end, a condenser comprising a multiplicity of passes of tubing arranged in a series and joined by U-shaped bends between each successive pass, heat dissipating means integrally welded to said tubing and comprising a multiplicity of members arranged close to each other and parallel to each other, and welded to the external surface of said tubing from side to side of the rear wall of said cabinet, resilient means comprising a coil spring supporting the weight of said condenser from the top of said frame, the support being applied to the condenser midway between the lateral sides of the condenser assembly and adjacent the top of the condenser, causing the condenser to hang downward, and resilient means comprising a coil spring acting between the condenser and said frame applied to the frame and to the condenser at two points near the bottom of the condenser and close to the lateral edges of the condenser for securing the condenser against a twisting movement and against movement toward and from the back of the cabinet.

2. An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transverse frame member secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly extending frame having an upper part located centrally of the back of the refrigerator and having lower parts located adjacent the side walls of the refrigerator on the back wall, said frame being carried by said transverse frame member, to which the frame is secured at its lower end, a condenser comprising a multiplicity of passes of tubing: arranged in a series and joined by U-shaped bends between each successive pass, heat dissipating means inte grally welded to said tubing and comprising a multiplici-- ty of members arranged close to each other and parallel to each other, and welded to the external surface of said tubing from side to side of the rear wall of said cabinet, resilient means comprising a coil spring supporting the weight of said condenser from the top of said frame, the' support being applied to the condenser midway between. the lateral sides of the condenser assembly and adjacent the top of the condenser, causing the condenser to hang downward, and resilient means comprising a coil spring acting between the condenser and said frame applied to the frame and to the condenser at two points near the bottom of the condenser and close to the lateral edges of the condenser for securing the condenser against a twisting movement and against movement toward and from the back of the cabinet, said heat dissipating means comprising a multiplicity of parallel wires arranged in two layers of wires, one on the outside and one on the inside of the tubing of said condenser.

3. An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transverse frame member secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly extending frame having an upper part located centrally of the back of the refrigerator and having lower parts located adjacent the side walls of the refrigerator on the back wall, said frame being carried by said transverse frame member, to which the frame is secured at its lower end, a condenser comprising a multiplicity of passes of tubing arranged in a series and joined by U-shaped bends between each successive pass, heat dissipating means integrally welded to said tubing and comprising a multiplicity of members arranged close to each other and parallel to each other, and welded to the external surface of said tubing from side to side of the rear wall of said cabinet, resilient means comprising a coil spring supporting the weight of said condenser from the top of said frame, the support being applied to the condenser midway between the lateral sides of the condenser assembly and adjacent the top of the condenser, causing the condenser to hang downward, and resilient means comprising a coil spring acting between the condenser and said frame applied to the frame and to the condenser at two points near the bottom of the condenser and close to the lateral edges of the condenser for securing the condenser against a twisting movement and against movement toward and from the back of the cabinet, the said passes of tubing extending upward and downward having the U-shaped joining bends located at the top and the bottom of said condenser.

4 An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transverse frame mem-. ber secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly ex-. tending frame having an upper part located centrally of the back of the refrigerator and having lower parts lo--- cated adjacent the side walls of the refrigerator on the:-

black wall, said frame being carried by said transverse: frame member, to which the frame is secured at its lowerend, a condenser comprising a multiplicity of passes of tubing arranged in a series and joined by U-shaped bends between each successive pass, heat dissipating means integrally welded to said tubing and comprising a multiplicity of members arranged close to each other and parallel to each other, and welded to the external surface of said tubing from side to side of the rear wall of said cabinet, resilient means supporting the weight of said condenser from the top of said frame, the support being applied to the condenser midway between the lateral sides of the condenser assembly and adjacent the top of the condenser, causing the condenser to hang downward, and resilient means acting between the condenser and said frame applied to the frame and to the condenser at two points near the bottom of the condenser and close to the lateral edges of the condenser for securing the condenser against a twisting movement and against movement toward and from the back of the cabinet, the said passes of tubing extending upward and downward having the U-shaped joining bends located at the top and the bottom of said condenser, and said first-mentioned supporting means comprising an angle bracket secured to a pair of centrally located passes of tubing, and having a sup= porting member carried by a compression spring which is seated on the top of said frame.

An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transversefrarne-member secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly extending frame having an upper part located" centrally of the back of the refrigerator and having lower parts located adjacent the side walls of the refrigerator on the back wall, said frame being carried by said transverse frame member, to which the frame is secured at its lower end, a condenser comprising a multiplicity of passes oftubing arranged in a series and joined by U-shaped bends between each successive pass, heat dissipating means in tegrally welded to said tubing and comprising a multiplicity of members arranged close to each other and parallel to each other, and welded to the external surface of said tubing from side to'side of'the rear wall of said cabinet, resilient means supporting the weight of said condenser from the top of saidframe, the support being applied to the condenser midway between the lateral sides of the condenser assembly and adjacent the top-of the condenser, causing-the condenser to hang'downward,

and resilient means acting between" the condenser and said frame appliedto the frame and to the condenser at two points nearthe bottom of the condenser and close tothe lateral edges of the condenser for'securing the condenser against a twisting movement and against movement toward and from the back of the cabinet, the said passes of tubing extending upward and downwardhav'ing the U-shaped joining bendslocated at the top and-the bottom of saidcondenser, and said first-mentioned supportingmeans comprising an angle bracket secured to a pairof centrally located passes of tubing, and having 'a supporting member carried by a compression spring which is seated on the top of said frame, said-compression spring surrounding a bolt passing through said supporting member and through said frame, and'provided with'a cup on one end of the spring and a washer on'the other end of said bolt, and threaded means for increasing the spring pressure or for clamping the washer tightly against the cup.

6. An improved condenser mounting assembly comprising, a refrigerator cabinet having a metal shell provided with a rear wall, a lower, transverse frame member secured at its ends to said rear wall adjacent each of the side walls of the refrigerator, an upwardly extending frame having an upper partlocated centrally of the back of the refrigerator and'having lower parts -located adjacent the side walls of the refrigerator'on the back wall, said frame being carried by said transverse frame member, to which the frame is secured at its'lower end, acondenser comprising a multiplicity'of passes of tubing arranged in a series and'joined by U-shaped bends between each successive pass, heat dissipating, means integrally welded to said tubing and comprising a 'multi-' plicity of members arranged close to each other and par allel to each other, and welded'to the external surface of said tubing from side to side of the rear wall of said cabinet, resilientmeans comprising a coil sprin'glsupportingthe'wei'ght of said condenser from the top of said frame, the support being applied to the condenser midway between the lateral sides of the condenser assembly and adjacent the top of the condenser, causing the condenser to hang downward, and resilient means comprising a coil spring acting between the condenser and said frame applied to the frame and to the condenser at two' points near the bottom of the condenser and close to" the lateral edges of the condenser for securing the condenser against a twisting movement and against movement toward and from the back of the cabinet, the lastmentioned means for securing the condenser to said frame comprising, a pair of coil springs, each coil spring being formed with a closed loop for receiving a bolt at one end of the coil spring, securing the spring to said frame and each spring having a transversely extending hook passing around one of the passes of the condenser and confining it against'the next adjacent turn of the coil spring.

7. In a condenser and motor compressor mounting, the combination of a refrigerator cabinet having an outer shell provided with a back panel and with side walls having inwardly turned flanges overlapping and secured to the back panel, said back panel having a pressed cavity at its lower end for receiving a motor compressor, a motor compressor mounting in said cavity, a transverse channeled frame member extending from side to side of said back panel and secured to said back panel and inwardly turned flanges at its ends; said transverse'frame member being outwardly bowed about said motor compressor, inwardly extending supporting brackets carried by said outwardly bowed portion of said transverse frame member, said brackets extending to points diametrically opposite both sides of said motor compressor, diametrically opposite brackets carriedby said motor compressor and overlying the ends of said first-mentioned brackets, compression springs supporting the weight of saidmotor compressor on said first-mentioned brackets, through bolts extending through said coil spring and'said brackets on each side of said motor compressor, an upwardly extending inverted V-shaped frame having its lower ends secured to said frame member and having its apex free and spaced from said back panel, and a condenser assembly resiliently supported near its top at said apex, and resiliently supported near its' bottom and near its outer corners on said V-shaped member.

8. In a condenser and motorcompressor mounting, the combinationof a refrigerator cabinet having an outer shell provided with a back panel and with side walls having inwardly turned flanges overlapping andsecured to the back panel, said back panel having a pressed cavity at its lower end for receiving a motor compressor, a motor compressor mounted in said cavity, a transverse channeled frame membe'rextending'from side to side of said back panel and secured to said back panel and inwardly turned flanges at its ends, said transverse frame member being outwardly'bowed about said motor compressor, inwardly extending supporting brackets carried by said outwardly bowed portion of said transverse frame member, said brackets extending to points diametrically opposite both sides of said motor compressor, diametrically opposite brackets carried by said motor compressor and overlying theends of said first-mentioned brackets, compression springs supporting the weight of said motor compressor on said first-mentioned brackets, through bolts extending through said coil spring'and said brackets on each side'of said motor compressor, an upwardly extending'inverted V-shaped frame having its lower ends secured to said framemernber and having its apex free and spaced from said back panel, and a condenser assembly resiliently supported near its top at said apex, and resiliently supported near its bottom and near its outer corners on said V-shaped member, said V-shaped frame member havingi'a horizontally extending supporting'member at its apex and said resilient-means comprising a compression spring supporting the weight of said condenser suspended from said horizontally extending supporting member, said spring and latter member having a through bolt carried by the upper end of the spring by a washer, and said through bolt having a shoulder on its lower end below said supporting member and carrying a bracket secured to said condenser.

9. In a condenser and motor compressor mounting, the combination of a refrigerator cabinet having an outer shell provided with a back panel and with side walls having inwardly turned flanges overlapping and secured to the back panel, said back panel having a pressed cavity at its lower end for receiving a motor compressor, a motor compressor mounted in said cavity, a transverse channeled frame member extending from side to side of said back panel and secured to said back panel and inwardly turned flanges at its ends, said transverse frame member being outwardly bowed about said motor compressor, inwardly extending supporting brackets carried by said outwardly bowed portion of said transverse frame member, said brackets extending to points diametrically opposite both sides of said motor compressor, diametrically opposite brackets carried by said motor compressor and overlying the ends of said first-mentioned brackets, compression springs supporting the weight of said motor compressor on said first-mentioned brackets, through bolts extending through said coil spring and said brackets on each side of said motor compressor, an upwardly extending inverted V-shaped frame having its lower ends secured to said frame member and having its apex free and spaced from said back panel, and a condenser assembly resiliently supported near its top at said apex, and resiliently supported near its bottom and near its outer corners on said V-shaped member, said V-shaped frame member having a horizontally extending supporting member at its apex and said resilient means comprising a compression spring supporting the weight of said condenser suspended from said horizontally extending supporting member, said spring and latter member having a through bolt carried by the upper end of the spring by a washer, and said through bolt having a shoulder on its lower end below said supporting member and carrying a bracket secured to said condenser, the said bracket extending horizontally to the condenser and being secured to a pair of clamping members arranged on opposite sides of and complementary to, and secured to two adjacent passes of tubing.

10. In a condenser and motor compressor mounting, the combination of a refrigerator cabinet having an outer shell provided with a back panel and With side Walls having inwardly turned flanges overlapping and secured to the back panel, said back panel having a pressed cavity at its lower end for receiving a motor compressor, a motor compressor mounted in said cavity, a transverse channeled frame member extending from side to side of said back panel and secured to said back panel and inwardly turned flanges at its ends, said transverse frame member being outwardly bowed about said motor compressor, inwardly extending supporting brackets carried by said outwardly bowed portion of said transverse frame member, said brackets extending to points diametrically opposite both sides of said motor compressor, diametrically opposite brackets carried by said motor compressor and overlying the ends of said first-mentioned brackets, compression springs supporting the weight of said motor compressor on said first-mentioned brackets, through bolts extending through said coil spring and said brackets on each side of said motor compressor, an upwardly extending inverted V-shaped frame having its lower ends secured to said frame member and having its apex free and spaced from said back panel, and a condenser assembly resiliently supported near its top at said apex, and resiliently supported near its bottom and near its outer corners on said V-shaped member, the said condenser being provided with a pair of coil springs, one adjacent the bottom and each lateral edge, each coil spring being secured to said V-frame at its inner end, and each coil spring having a hook at its opposite end hooked about a tube of said condenser and confining the tube against the adjacent turn of each coil spring.

References Cited in the file of this patent UNITED STATES PATENTS 2,446,876 Iwashita Aug. 10, 1948 2,485,066 Philipp Oct. 18, 1949 2,667,762 Hornaday Feb. 2, 1954 2,687,625 Nadler Aug. 31, 1954

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