US2478137A - Refrigerant liquefying unit - Google Patents

Refrigerant liquefying unit Download PDF

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Publication number
US2478137A
US2478137A US707361A US70736146A US2478137A US 2478137 A US2478137 A US 2478137A US 707361 A US707361 A US 707361A US 70736146 A US70736146 A US 70736146A US 2478137 A US2478137 A US 2478137A
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US
United States
Prior art keywords
condenser
receiver
casing
refrigerant
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US707361A
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English (en)
Inventor
Albert J Timmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US707361A priority Critical patent/US2478137A/en
Application granted granted Critical
Publication of US2478137A publication Critical patent/US2478137A/en
Priority to DEG1948U priority patent/DE1630755U/de
Priority to DEG4098A priority patent/DE819096C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components

Definitions

  • This invention relates to refrigerating apparatus and more particularly to an improved refrigerant liquefying unit.
  • the liquefying or condensing apparatus disclosed herein is primarily intended to be used with remotely located evaporators and is intended to be mounted out in the open rather than in a special machinery compartment of some re- :Erigeration or air conditioning cabinet. Units of this type are usually sold separate from any cabinet or any evaporator coil and for that reason must be durable and at the same time should be lightweight so as to facilitate handling.
  • a stamped sheet metal receiver serves the dual purpose of a refrigerant storage tank and a. base for the condenser and the motor compressor unit.
  • a further object of this invention is to provide a refrigerant condensing unit in which the condenser is supported directly by the receiver and in which the air circulating fan is in turn supported by the condenser so as to eliminate the need for expensive framework.
  • Figure 1 is a, vertical sectional view, partly diagrammatic, showing the relationship between the elements
  • Figure 2 is a top view of the condensing unit with the top grill and a portion of the grill support broken away;
  • Figure 3 is a fragmentary perspective view showing the n construction.
  • reference numeral I0 designates generally an annularshaped receiver which constitutes the main support or base member for the condenser I2 and the motor-compressor unit Il.
  • the receiver lll comprises a pair of complementary metal stampings lli and i8 which are hydrogen brazed to one another so as to form a refrigerant-tight tank.
  • the upper stamping i8 has its edges flared as indicated in Figure l so as to facilitate assembly and so as to reinforce the receiver at the juncture of the stamplngs. While I have shown the receiver mounted on legs 20, it is obvious that the legs 20 may be omitted.
  • a plurality of motor-compressor mounting (Cl. (i2-115) brackets 22 are supported on the upper stamping i8 as best shown in Figure i.
  • the motor-compressor unit M is provided with conventional spring type mounting members 24 which may be secured yto the mounting brackets 22.
  • Condenser supporting brackets 2S are likewise secured to the brackets 22 and serve to support the condenser in proper relationship to the receiver lill.
  • An air circulating fan assembly 3d is held in place by the sheet metal straps 3l which are secured to the brackets 32 which in turn are secured t0 the condenser l2.
  • the brackets 2S and 32 are preferablyhydrogen brazed or otherwise secured to the pipes 34 which constitute the refrigerant conduits for the condenser l2.
  • the condenser fins t0 have been corrugated at their outer edges as indicated at l2 in Figure 3 so as to strengthen the outer edges of the ns and so as to improve the appearance of the unit.
  • This construction makes it possible to omit the usual protective and decorative grill or screen which is normally used for protecting the fins of condensers which are mounted out in the open. Furthermore, even if something does hit against the side of the unit, the lns which may be bent thereby will not be as noticeable as would be the case with fins having )normally straight edges.
  • a control box 50 has been provided as best shown in Figure 2 within which the necessary controls 'for' the unit are mounted. Access may be had to the control box 50 by removal of the panel 52 which is held in place by means of thumb screws 54. Removal of the panel 52 also gives access to the inner surface of the condenser i2.
  • the fan Vunit 3B is protect-ed by means of the grill assembly 6l] which comprises a grill lt2 and a grill frame 64.
  • The'frame 64 rests upon the upper edges of the condenser ns 40 and l the upper inturned ends of the straps 3i as best shown in Figure 1.
  • a rubber-like gasket is provided at the point of contact between the grill frame ylill and the ns 40.
  • the grill assembly 60 may be omitted in those installations where there is no danger of injury from the revolving fan blades.
  • the fan preferably is arranged to cirv culate the air downwardly through the grill B2 and by virtue of the fact that the top of the casing of motor-compressor unit I4 is positioned intermediate the top and the bottom of the vertically elongated circular-like condenser l2 a great portion of the circulated air is deflected by the casing of unit I4 laterally over convolutions 34 of the condenser coil.
  • the condenser By circulating the air downwardly in lieu of upwardly, the condenser remains cleaner longer since the dust which normally collects on the floor is not pulled into the condenser by the air stream. A portion of the air circulated by the fan will sweep the outer walls of the motor-compressor unit I 2 and the receiver I so as to cool the same.
  • Thel motor-compressor unit I 4 is of the type shown in the patent to Francis I. Rataiczak No. 2,420,442, dated May 13, 1947, to which reference may be made for a detailed description of the internal construction of the unit.
  • Reference numeral 'IU designates the suction line leading from the evaporator 'I2 to the inlet of the compressor.
  • the compressed gas is discharged directly from the compressor through the discharge 'line I4 which is connected to the upper pass or convolution of the condenser I2 which serves as a superheat removing coil for partially cooling the compressed refrigerant before it is discharged into the upper end of the motor-compressor housing via the line 16.
  • the partially cooled refrigerant carries along with it a certain amount of lubricant which is dropped out from the refrigerant within the motor-compressor housing before the compressed gas is returned to the second and subsequent passes or convolutions of the condenser I2 via the outlet line 18.
  • the last pass or convolution of the condenser discharges into the receiver I0 via the connection 80 (see Fig. 2).
  • the liquid refrigerant flowing to the evaporator 12 leaves the receiver through the liquid line 82 within which there is provided a conventional pressure reducing means 84 ahead of the evaporator 12.
  • the parts of the condensing unit are very compactly arranged and do not require expensive framework for holding the parts together.
  • the condenser which is supported by the receiver, supports the air circulating fan and the fan grill.
  • Refrigerating apparatus comprising in combination; a stamped sheet metal annular base member having an inner and an outer reinforcing flange; circular condenser means carried by said base member; motor-compressor means including a housing therefor disposed centrally of said condenser means and carried by said base member; means for flowing a cooling medium in thermal exchange with said condenser means and said motor-compressor housing; said base member having a hollow portion constituting a receiver for refrigerant condensed in said condenser means; and refrigerant ow connections between said motor-compressor means, said condenser means and said receiver; said refrigerant flow connecting means comprising first means for conducting compressed refrigerant from said motor-compressor unit into a rst portion of said condenser means, means for conveying refrigerant leaving said first portion of said condenser means into said motor-compressor housing, means for conveying refrigerant from said motorcompressor housing to a second portion of said condenser means,
  • a refrigerant liquefying unit comprising, a base member including a horizontally disposed annular receiver, means for spacing said receiver above a surface upon which it is to be supported, circular condenser means having its consaid receiver along a vertical axis, a casing located substantially in the center of said vertically elongated condenser means and having a portion disposed in the opening of said annular receiver and spaced from walls thereof, said casing containing a motor and a compressor, means disposed above said casing for circulating air downwardly against and over said casing and said receiver, and the top of said casing being positioned intermediate the top and the bottom of said vertically elongated condenser means for deflecting some of the circulated air laterally over convolutions of said condenser means.
  • a refrigerant liquefying unit comprising, a base member including a horizontally disposed annular receiver, means for spacing said receiver above a surface upon which it is to be supported, circular condenser means having its convolutions extending a substantial distance above said receiver along a vertical axis, a casing located substantially in the center of said vertically elongated condenser means and having a portion disposed in the opening of said annular receiver and spaced from walls thereof, said casing containing a motor and a compressor, means disposed above said casing for circulating air downwardly against and over said casing and said receiver, the top of said casing being positioned intermediate the top and the bottom of said vertically elongated condenser means for deecting some of the circulated air laterally over convolutions of said condenser means, and a. cover for said unit including a grill-like portion for shielding said air circulating means.
  • a refrigerant liquefying unit comprising, a base member including a horizontally disposed annular receiver, means for spacing said receiver above a surface upon which it is to be supported, circular condenser means having its convolutions extending a substantial distance above said receiver along a vertical axis, means for supporting said condenser means in fixed relationship relative to said receiver including bracket means connecting said condenser means and said receiver, a casing located substantially in the center of said vertically elongated condenser means and secured to said bracket means, said casing having a portion positioned in the opening of said annular receiver and spaced from walls thereof, said casing containing a motor and a compressor, air circulating means above said casing for circulating air downwardly against and over said casing and said receiver, means for supporting said air circulating means including bracket means connecting the same to said condenser means, and the top of said casing being positioned intermediate the top and the bottom of said vertically elongated condenser means for defiecting some of the circulated
  • a refrigerant liquefying unit comprising, a base member including a horizontally disposed annular receiver, means for spacing said receiver above a surface upon which it is to be supported, circular condensery means having its convolutions extending a substantial distance above said receiver along a vertical axis, means for supporting said condenser means in fixed relationship relative to said receiver including bracket means connecting said condenser means and said receiver, a casing located substantially in the center of said vertically elongated condenser means and secured to said bracket means, said casing having a portion positioned in the opening of volutions extending a substantial distance above said annular receiver and spaced from walls thereoi.
  • said casing containing a motor and a compressor, air circulating means above said casing ior circulating air downwardly against and over said casing and said receiver, means for supporting said air circulating means including bracket means connecting the same to said condenser means, the top of said casing being positioned intermediate the top and the bottom oi said vertically elongated condenser means for deiiccting some oi the circulated air laterally over convolutions of said condenser means, and a cover supported on said unit including a grill frame extending a substantial distance above said receiver along a vertical axis, the bottom portion of said condenser means having an outer circumference slightly greater than the outer circumterence oi at least a part of said receiver and surrounding said part oi said receiver, means for supporting said condenser means in xed relationship relative to said receiver including a plurality oi brackets connecting said condenser mns and said receiver, a casing located substantialiy in the center or said vertically elong
  • a refrigerant liqueiying unit comprising, a sealed wir containing a motor and a compressor, a heat excher including two conduit 'rtiona said conduit portions oi said heat ext v being secured together by a plurality oi spaced apar to providea unitary structure in which said i serve to reduce the temperature aradient between said conduit portions of the structure, each conduit portion or said heat enger structure having an inlet and an outiet reirigerant dow means between said and said two conduit portions of said heat exchanger structure, and said refrigerant now means inclug a conduit for conducting com pressed reirigerant from said compressor to the inlet oi a portion oi said two conduit pornous ci said unitary exchanger structure, a second conduit ior conveying refrigerant from the outlet oi said nrst conduit portion oi said unitary structure into said casing and a third conduit for conveying refrigerant irom said casing into
  • a refrigerant liquetying unit comprising. a base member including a horizontally disposed annular receiver. a circular heat exchanger including two conduit portions having the convolutions of its conduit portions extending a substantial distance above said receiver along a vertical axis, a casing located substantially in the center of said vertically elongated h'eat exchanger, said casing containing a motor and a compressor, said two conduit portions of said heat exchanger being secured together by a plurality of iins to provide a unitary structure, each conduit portion of said heat exchanger structure havingvan inlet and an outlet, a conduit for conducting compressed refrigerant from said casing to the inlet of a rst portion of said two conduit portions of said unitary heat exchanger, a second conduit for conveying refrigerant from the outlet of said rst conduit portion of said unitary heat exchanger into said casing, a third conduit for conducting refrigerant from said casing into the inlet of a second portion of said two conduit portions of said unitary heat
  • a refrigerant liquefying unit comprising, a base member, circular condenser means supported upon said base member and having its convolutions extending a substantial distance above said member along a vertical axis, ⁇ a casing supported from said base member and located substantially in the center ofl said vertically elongated condenser means in spaced relation thereto, said casing containing a motor and a compressor, means disposed above said casing for circulating air downwardly against and over said casing, and the top of said casing being positioned intermediate the top and the bottom of said vertically elongated condenser means for deecting some of the circulated air laterally over convolutions of said condenser'means.
  • a refrigerant liquefying unit comprising, a base member including a horizontally disposed annular receiver. a circular condenser carried by said base member and having conduit convolutions extending substantially along the vertical axis thereof from a point adjacent the top oi' said receiver to a point located a substantial distance thereabove, a casing located within said circular condenser, said casing containing amotor and a compressor, means disposed above said casing for circulating air in a downward direction, and the top of said casing being positioned intermediate the top and the bottom oi said vertically elongated circular condenser ior deflecting some of the downwardly circulated air laterally over convolutions o! said condenser.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Compressor (AREA)
US707361A 1946-11-02 1946-11-02 Refrigerant liquefying unit Expired - Lifetime US2478137A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US707361A US2478137A (en) 1946-11-02 1946-11-02 Refrigerant liquefying unit
DEG1948U DE1630755U (de) 1946-11-02 1950-09-30 Kaeltemittelkondensator.
DEG4098A DE819096C (de) 1946-11-02 1950-10-01 Kaeltemittelkondensator

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Application Number Priority Date Filing Date Title
US707361A US2478137A (en) 1946-11-02 1946-11-02 Refrigerant liquefying unit

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US2478137A true US2478137A (en) 1949-08-02

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813405A (en) * 1953-09-29 1957-11-19 Thore M Elfving Refrigerant condensing unit
US2963880A (en) * 1956-03-06 1960-12-13 Thore M Elfving Mechanically refrigerated railway car
US3498080A (en) * 1968-04-08 1970-03-03 Carrier Corp Apertured slidable member for air conditioners
US3508417A (en) * 1967-08-06 1970-04-28 Keiichi Kimura Condensing unit
JPS4948344U (de) * 1972-07-28 1974-04-27
US3865517A (en) * 1973-05-29 1975-02-11 Carrier Corp Refrigeration condenser unit
US3943728A (en) * 1974-01-02 1976-03-16 Borg-Warner Corporation Air-cooled condenser apparatus
US4858683A (en) * 1988-04-04 1989-08-22 Heil-Quaker Corporation Stamped discharge grille including two louvred sections
US5038854A (en) * 1990-09-12 1991-08-13 Modine Manufacturing Company Heat exchanger assembly
US20170030597A1 (en) * 2015-07-30 2017-02-02 Omar Crespo-Calero Highly efficient and easy to service air conditioning condenser unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005644U1 (de) * 2013-06-24 2014-09-25 Dometic Sweden Ab Kühlmittelverflüssiger-Einheit für Kühlguttransporte

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1880083A (en) * 1928-07-30 1932-09-27 Frigidaire Corp Refrigerating apparatus
US1903825A (en) * 1933-04-18 mallory
US1948155A (en) * 1930-09-26 1934-02-20 Climax Engineering Company Refrigeration machine
US1950510A (en) * 1928-10-31 1934-03-13 Frigidaire Corp Refrigerating apparatus
US2134936A (en) * 1928-10-30 1938-11-01 Gen Motors Corp Motor compressor unit for refrigerating apparatus
US2311947A (en) * 1941-10-30 1943-02-23 Gen Motors Corp Refrigerating apparatus
US2420442A (en) * 1943-04-26 1947-05-13 Gen Motors Corp Sealed motor compressor unit for refrigeration apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1903825A (en) * 1933-04-18 mallory
US1880083A (en) * 1928-07-30 1932-09-27 Frigidaire Corp Refrigerating apparatus
US2134936A (en) * 1928-10-30 1938-11-01 Gen Motors Corp Motor compressor unit for refrigerating apparatus
US1950510A (en) * 1928-10-31 1934-03-13 Frigidaire Corp Refrigerating apparatus
US1948155A (en) * 1930-09-26 1934-02-20 Climax Engineering Company Refrigeration machine
US2311947A (en) * 1941-10-30 1943-02-23 Gen Motors Corp Refrigerating apparatus
US2420442A (en) * 1943-04-26 1947-05-13 Gen Motors Corp Sealed motor compressor unit for refrigeration apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813405A (en) * 1953-09-29 1957-11-19 Thore M Elfving Refrigerant condensing unit
US2963880A (en) * 1956-03-06 1960-12-13 Thore M Elfving Mechanically refrigerated railway car
US3508417A (en) * 1967-08-06 1970-04-28 Keiichi Kimura Condensing unit
US3498080A (en) * 1968-04-08 1970-03-03 Carrier Corp Apertured slidable member for air conditioners
JPS4948344U (de) * 1972-07-28 1974-04-27
US3865517A (en) * 1973-05-29 1975-02-11 Carrier Corp Refrigeration condenser unit
US3943728A (en) * 1974-01-02 1976-03-16 Borg-Warner Corporation Air-cooled condenser apparatus
US4858683A (en) * 1988-04-04 1989-08-22 Heil-Quaker Corporation Stamped discharge grille including two louvred sections
US5038854A (en) * 1990-09-12 1991-08-13 Modine Manufacturing Company Heat exchanger assembly
US20170030597A1 (en) * 2015-07-30 2017-02-02 Omar Crespo-Calero Highly efficient and easy to service air conditioning condenser unit
US10197295B2 (en) * 2015-07-30 2019-02-05 Omar Crespo-Calero Highly efficient and easy to service air conditioning condenser unit
US11293649B2 (en) * 2015-07-30 2022-04-05 Omar Crespo-Calero Protective seal for coil fins of an air conditioning condenser unit

Also Published As

Publication number Publication date
DE819096C (de) 1951-10-29
DE1630755U (de) 1951-11-15

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