US1838041A

US1838041A - Refrigeration

Info

Publication number: US1838041A
Application number: US491427A
Authority: US
Inventors: Clyde E Ploeger; William D Collins
Original assignee: Servel Inc
Current assignee: Servel Inc
Priority date: 1930-10-27
Filing date: 1930-10-27
Publication date: 1931-12-22
Anticipated expiration: 1948-12-22

Description

Dec. 22, 1931. c. E. PLOEGER ET AL f 1,838-01 REFRIGERATION s sheets-sheet' i Filed 061;. 27, 1930 INET?? E BY j-W f AY 'o l l ATTORNY Dec. 22, 1931. c. E. PLOEGER ET AL 1,338,041

REFHIGERATION Filed Oct. 27, 1930 3 SheetsfSheet 2 ATTORNEY Dec. 2v2, 1931. c.V E, PLOEGER .E1-Al. 1,838,041

REFRIGERATION Filed Oct. 27, 1930- I5 Sheets-Sheet 3 BY E g G2( ATTORNEYS.

APatented Dec. 22, 1931 PATENT OFFICE WILLIAM D. ooLLINs, F EvANsvILLE, INDIANA, AssIGNoEs @To rNc or NEW YORK, N. Y., A CORPORATION or DELAWARE *,'lhisinventiqnrelatesto 4mechanical refrigerationgand .more :particularly to a method .of:imountingf` refrigerating apparatus so that `itncanbe det-achably-assembled as a unit ,r with arefrigeratpr; v

It -isj onternplatdby this invention that theevaporatorfisf-positioned within the refrigeratingfchamberfof a refrigerator, the motor drivengcompressor unit and the condensers areiinfanapparatus` chamber below gthe,retrigerating.chamber7 and a iue in the rear of thelrefrig'erator communicates with the.apparatusfchambertto;induce a draft of airentering thegbottomfof the refrigerator fort coolingthev,condensers andthe motor- Y. compresSOlrllll-z; Itfisdesirable that the refrigerating apparatus 'sbe :assembled as a sini gle unit which is easily placed in position in the .arefrigerator.;l` and; easily detached therefrom.Toaccomplish` this there is provided y airaine ,so constructed that the condensers andf-motorv-compressor unitimounted on the base;l thereof willkfbegpositioned in the apparatusfV-,ompartment and the evaporator mountedwon ,theumiejcy .portion will be posi- :jtionedv a iin'.r the 5 rcfrigerating compartment when` the trarnel .with the apparatus mount- @d'tlleijenforming-a lunit, is assembled with therexfrigerator: c 1 z `flheinventionfwill-bebetter understood by f 3 frefwerencey to, ,the ,1 following description taken `inec'mmectien with the drawings in which 4.I1`-1g.1 la' arlelevation of a refrlgerating fbordyi-ng gthis invention 2,-;a Asectional .view along the line Figa unit; BieA Fig. 3, partlyin l-vertical 5 section showing the` refrigerati"` g unit- Positionedin a refrigerator Cabinet;

i

1,15. j j

52.,..r-Figf agmentary sectional view-on the lflemofjligfaand-1f= r Figy.ll 5,a.view similar to Fig. `21shovving a Condenser. modiqed; Construction,

Referring to Figs. 1 1 and .2,v the refrigerata partly in elevation 'and EEEEIGEEATION fappncaaon mea october 27, 1930. seriai No. 491,427.

open at the bottom and top and

plates

14 and 15 welded in place to form parallel parti.

tions which divide this box structure into a central section and two equal end sections. The

partition plates

14 and 15 do not extend the full width of the

side plates

11 and 13 but have port-ions 16 of extended width above the side plates as may be seen in Figs. 1 and 3.

The bottom-of the central section of the base between the

plates

14 and 15 is closed by a sheet metal plate 18 uponK which a hermetically sealed motor-compressor unit 19 is suitably mounted and secured by bolts 20. Ay circular opening 21 is provided in the plate 18 directly under the motor-compressor unit to allow air coming through the bottom of the refrigerator to pass upwardly around the unit and through the radiating fins 22 for dissipating heat generated in the unit. A

In the end section of the base between the end plate 10 and the partition plate 14 there is disposed a condenser which may consist of coils 23 formed V of tubing wound back and forth through suitable openings in

plates

11 and 13. The condenser is provided with transverse radiating ns 24 which extend across the coils between the end plate 10 and partition plate 14. A similar condenser is positioned in the end section of the base on the other side of the motor-compressor unit between end plate 12" and partition plate 15 r and thetwo condensers are connected in se'- 14 and 15 at their extended portions 16. At

the top of the vertical portion of the frame there is vsecured a section of heat insulated l refrigerator wall-25 upon which the evaporator 26 is mounted as by lugs 42 in such a position that when the frame is secured 1n Vplace in the refrigerator thek evaporator will be positioned within the refrigerating chamber-27 and the wallsection 25 will close an opening 28 in the refrigerating chamber wall .29 'through which 'the evaporator was inserted.

Avapor suction line 30 connects the evaporator 26 and the intake 31 of the hermetically sealed motor-compressorunit 19 which discharges compressed refrigerant vapor through conduits 32 to the condenser coils 24. Liquid refrigerant from the'condenser is returned to the evaporator through

conduits

33 and 34 between which there is a rcfrigerant supply control means 35.

The refrigerator may be of, any well known construction comprising a refrigerating chamber 27 with heat insulated walls 29 and an apparatus space 36 immediately below the refrigerator chamber. An opening 28 is provided in the rear wall of the refrigerating compartment through which the evaporator is inserted when the apparatus unit is assembled with the refrigerator as explained herein. The apparatus space in the lower part of the refrigerator is open at the bottom and at the rear end is in open communication with a fiue 37 which extends up the rear of the refrigerator and is formed between the wall of therefrigerating chamber and the sheet metal plate 38 suitably attached.

AReferring to Figs. 3 and 4 of the drawings, when the refrigerating apparatus mounted on the frame and forming a single unit is assembled with the refrigerator, the ue casing 38 being removed, the apparatus unit can be inserted from the rear. When in position the base of the frame on which is mounted the condensers and the motorcompressor unit is within' the apparatus chamber in the lower part of the refrigerator, the angle` irons or vertical portion of the frame extend upwardly within the iin-e, the

evaporator 26 is within the refrigerating chamber 27 and the wall section 25 which carries the evaporator and is mounted onthe upper part of the frame closes an opening 28 in the rear wall of the refrigerating chamber through which the evaporator was inserted. l f

A suitable gasket 39 between a ledge 40 around the4 opening` in th-e refrigerator chamber wall and the closure member 25 seals the joint between the closure member and the wall.

` The apparatus unit may be secured in any desired manner and the flue plate 38 placed in position. When the apparatus unit is thus assembled with the refrigerator there isV a complete path for air circulation from the bottom of the refrigerator which is open, up through the condenser coils in the end sections of the base portion of the frame and upwardly through the iiue in the rear of the refrigerator. As explained above, air for cooling the motor-compressor unit passes upwardly from the open bottom `of the refrigerator through the-'opening 21 in the mounting plate 18, through the heat radiating fins 22 and up theliue 37 in the back of the refrigerator.

In a construction according to this invention air for cooling the condensers will not have previously been warmed by coming in contact with the motor-compressor unit and due to the draft induced by the flue at the back of the refrigerator air which has been utilized to cool the motor-compressor unit will notcome in contact with the condenser coils, which is a factor conducive to high efficiency.

Obviously, many modifications may be made within the scope of this invention, for instance, as shown in Fig. 5 the base portion may be modified by extending

end plates

10 and 12 and adding member 41 to accommodate condenser coils 42 to afford greater condenser cooling surface. Conforming to the inventive thought in this arrangement also, the air for coolingthe condensers will not have been previously warmed by contact with the motor-compressor unit.

It will be obvious 'to those skilled in the artthat various other changes may be made in the construction and arrangement without departing from the spirit of the invention and therefore the invention is not limited to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

We claim:

1. A refrigerator including an apparatus compartment, a fiue extending therefrom and forming a` continuous passage therewith, a refrigerating compartment above said apparatus compartment and formed in part by a wall having an aperture therein, a

refrigerating unit including a frame, a compressor mounted on said frame, a closure member for said aperture mounted on sa1d frame, an evaporator supported by said cloi sure member and adapted to be inserted through said aperture, condensers mounted on said frame, said refrigerating unit adapted to be secured in such .position that the evaporator is within the refrigerating chamber, the closure member seals the aperture, the compressor is within the apparatus chamber and the condensers are within said passageway.

2. A refrigerator including an apparatus compartment having air inlet openings therein, a vertical flue extending from said apparatus compartment, a -refrigerating compartment positioned vabove said apparap tus compartment and' having an opening in 'a wall thereof, a refrigerating apparatus including a vertical frame, a compressor unit supported from the lower portion of said frame, a closure member for said opening mountedon said frame, an evaporator supported by said closure member and adapted to be inserted through/saidl opening, condensers mounted on saidv framexin spaced horiin the refrigerating chamber, the closure member seals the opening, and the compressor and condensers are within-the apparatus chamber. f,

3. A refrigerator comprising, in combination, a cabinet structure including an apparatus compartment with one or more air inlet openings therein, a refrigerating compartment above said apparatus compartment and formed in part by a rear wall having an Vaperture therein, a vertical flue at the rear of said compartments forming a continuous passageway with the apparatus compartment for air from said inlet openings, a refrigerating unit including a vertical frame, a compressor unit supported from the lower part of said frame, condensers supported by said frame in spaced horizontal relation with said compressor unit, a closure member for said aperture mounted on the upper part of said frame, an evaporator supported on said closure member and adapted to be inserted through said aperture, connecting conduits between andy control devices for said compressor, condensers and evaporator mounted integrally withA said refrigerating unit, said refrigerating unit adapted to be removably secured in said cabinet structure so that the evaporator is within the refrigerating chamber, the closure -nember seals the aperture, and the compressor unit and the condensers are within the apparatus chamber.

4. A refrigerator including an'apparatus compartment, a iue extending therefrom, a refrigerating compartment abovesaid apparatus compartment, av frame, arefrigerating unit mounted on said frame and including a compressor on the lower portion of the frame andan evaporator on the upper portion of the frame, said frame and refrigerating unit adapted to be secured in such position that the evaporator is withinl the refrigerating chamber and the frame in the flue. K

5. A'refrige'rator comprising a cabinet including an apparatus compartment andka refrigerating compartment above saidgapparatus compartment having an aperture in a wall thereof, and refrigerating apparatus including a condensing unit, a frame, and an evaporator\ supported vlaterally from said frame, said refrigerating apparatus adapted to be removably secured as a unit in said cabinet, so that the evaporator iextendsinto the refrigerating chamber through said aperture.-

'6. Alrefrigerator comprising a cabinet i'ncluding an apparatuscompartment and a refrigeratlng compartment above sa1d apparatus compartment having an aperture 1n a wall thereof, and refrigerating apparatus including a condensing unit, a frame, and an evaporator supported laterally fromsaid frame, said refrigerating apparatus being removably secured as a unit in said cabinet, with the evaporator extending into the refrigerating chamber through said aperture and the condensing unit disposed in the apparatus compartment.

7 A refrigerator comprising a cabinet having a refrigerating compartment and an apparatus compartment beneath the refrigerating compartment, said apparatus compartment being open at its bottom, and said cabinet having a flue extending upwardly from the apparatus compartment for creating a natural draft therethrough, and refrigera-ting mechanism removable as a unit from. said cabinet, and including an evaporator for location in the refrigerating compartment and compressor condenser mechanism located in the apparatus compartment, said compressor condenser structure forming the bottom of the cabinet. Y y' 8; A refrigerator cabinet comprising an apparatus compartment, flue means for drawrelatively flat in outline disposed substantially horizontally in substantially the lower portion of the apparatus compartment, and a compresser spaced substantially horizontally relative to said condenser.

9. A refrigerator cabinet comprising an apparatus compartment, liuc means for drawing air through said compartment, and refrigerating mechanism removable as a unit from said refrigerator cabinet and including a condenser relatively flat in outline disposed substantially horizontally in substantially the lower portion of the apparatus compartment, and a compresser spaced substantially horizontally relative to said condenser.

10. A refrigerator having a refrigerating compartment, an adjacent apparatus compartment, a chamber extending from the apparatus compartment in overlapping relation to the refrigerating compartment, a removable refrigeratlng unit comprlslng a frame for location in said chamber, and evaporating ing mechanism for cooling the refrigerating y compartment supported by said frame,

In testimony whereof we afHx our signa` tures.

WILLIAM D. COLLINS. CLYDE E. PLOEGER.

- l DISCLAIMER 1,838,041f-Olyde E. Ploeger and William D. Collins, Evansville, Ind. REFRIGERA- 'K TioN.y Q lPatent dated December 22,1931. Disclaimer filed August 24, 1934,

by the assignee', Serpel, Inc. u j Herewith enters this disclaimerl to claim 5 thereof, to Wit:

.5. A refrigerator comprising a cabinet including an apparatus compartment and a refrlgerating compartment above said apparatus compartment having an aperture in a- Wall thereof, and refrigerating apparatus including a condensing unit, a frame,

and an evaporator supported `laterally from said frame, saidrefrigerating apparatus adapted to bev removablg,7 secured as a unit in said'cabinet, so that the evaporator extends ,into the refrigerating chamber through said aperture. f v

[Oficial Gazette September 18, 1.934.]