US3756039A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
US3756039A
US3756039A US00154956A US3756039DA US3756039A US 3756039 A US3756039 A US 3756039A US 00154956 A US00154956 A US 00154956A US 3756039D A US3756039D A US 3756039DA US 3756039 A US3756039 A US 3756039A
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United States
Prior art keywords
component
fans
components
motor
casing
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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
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US00154956A
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English (en)
Inventor
V Riello
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.)
Riello Condizionatori SpA
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Riello Condizionatori SpA
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Application filed by Riello Condizionatori SpA filed Critical Riello Condizionatori SpA
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Publication of US3756039A publication Critical patent/US3756039A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing

Definitions

  • ABSTCT An air conditioner for house or office rooms, wherein [30] Foreign Application Priority Data June 20, 1970 f ammmmom ane ta w a s n mc mr wmuw 35 U n Ufl WqM .M MPPef mmnm p e a nc b .lu$ W m m s m wan fix mm x m e w m 2; m s amen" r 6 op e D mC hW m pl wmmd sm 9 mb mmea s o m m s m L.
  • This invention relates to air conditioners adapted for conditioning (usually for cooling) the inner atmosphere of house or office rooms and the like. Further, this invention concerns a method for industrially producing said air conditioners and in particular the structural components thereof.
  • said air conditioners comprise rather complicated equipments, wherein a complete refrigerating battery is housed within a usually parallelepipedon shaped outer casing having sides a few centimeters long, said refrigerating battery comprising a motordriven compressor unit, an evaporator wherein a fluid heat carrier (Freon" or other easily liqucfiable gas or gas mixture) is caused to expand in order to absorb heat from the room, and a condenser wherein said heat carrier is again liquefied under a suitable pressure in order to give-out said previously taken-up heat.
  • a fluid heat carrier Reon" or other easily liqucfiable gas or gas mixture
  • each of said circuits comprising suitable passages to force related air streams through the pipe coils of said evaporator and condenser, respectively.
  • Said air streams are generated and maintained by suitable blowers or blower fans which operate in said circuits and are driven by motor means different from that of said compressor.
  • Said casing comprises inlet and outlet openings for a warm circuit and a cold circuit, respectively, said openings leading to two different environments, i.e., a conditioned or inner environment and an outer environment wherein the calories withdrawn from the former environment are discharged, or wherefrom calories for heating said inner environment are taken-up (when the air conditioner is utilized as a heater).
  • said air conditioners show a rather complicated inner structure, wherein a plurality of partition walls are provided for physically separating said warm or cold air stream flowing passages. Said different passages shall be connected in such a manner as to create the least possible drag to said air streams.
  • An object of this invention is to provide air conditioners that allow an industrial production thereof at reduced costs, with reference both to single component manufacture and assembling thereof, said air conditioners showing a high efficiency and operational reliability, an extended useful life and a noiseless operation.
  • a main space that is a part of the whole space enclosed by said air conditioner parallelepipedon shaped casing and wherein the air conditioner electromechanical components are housed is subdivided into two sections separated by a plane or an approximately planar surface), said plane being preferably horizontal and parallel to the major sides of said parallelepipedon shaped casing, and a conditioner inner structure is subdivided into two main components facing with each other and connected across said plane (or approximately planar surface), said components co-operating to form air stream conveying passages, inlet and outlet openings therefor and partition walls physically separating passages and openings wherein warm and cold air streams, respectively, flow.
  • the air conditioners blower fans and related driving motor means are preferably co-axially fitted and said plane (or planar surface) lies close to, and preferably comprises both the fan and motor shaft axes.
  • Said main inner space is subdivided into two physically separated sections comprising a warm and respectively a cold air circuit.
  • Said conditioner parallelepipedon shaped casing comprises also a subsidiary space, preferably superimposed to said main space and separated therefrom by one of said main structural components.
  • Said subsidiary space preferably above said main space comprises passages wherein heat exchange means between air and fluid heat carrier are at least partially fitted, said passages being in turn physically and thermally separated by a third structural com ponent, advantageously made of an expanded plastics or other suitable heat insulating material.
  • FIG. 1 is an exploded perspective view of the main structural components of an air conditioner according to this invention.
  • FIG. 2 is a similar view of the same components, along with the electromechanical and heat transfer and exchange system elements.
  • FIGS. 3, 4 and 5 are diagrammatic sections of the air conditioner structure, taken on planes perpendicular to blower fan axes, as indicated with III-III, IV-IV and V-V, respectively, in FIG. 6.
  • FIG. 6 is a section of the assembled air conditioner, taken on the horizontal plane VI-VI in FIG. 5.
  • FIG. 7 is another section of the air conditioner, taken on the plane VIIVII in FIG. 5.
  • the whole air conditioner structure essentially consists of two components 10 and 12 only, to which a third component 14 is associated in order to physically and thermally separate passages wherein a warm air stream and a cold air stream, respectively, flow.
  • Said structural components 10 and 12 are connected in opposite relationship with each other across a plane (or an approximately planar surface), preferably horizontal and parallel to the major sides of a parallelepipedon shaped air conditioner casing.
  • Said plane comprises the axes of centrifugal blower fans 16 and 18, as well as the shaft of an electric motor 20 therefor, said axes and shaft being aligned parallely to the major sides of said parallelepipedon shaped casing.
  • said components 10 and 12 define a space wherein a motor-driven compressor unit 22 of a type usually utilized in such air conditioner equipments, is housed.
  • the edge 24 of the lower component 10 defines a plane which is coincident with the air conditioner bottom wall.
  • the edge 26 of the upper structural component 12 defines a plane wherein lies an essentially planar member 28 of the same component 12, acting as a partition wall for separating spaces wherein said air conditioner electromechanical elements (blower fans 16 and 18, motor 20 and compressor unit 22) are housed and operated. Within said spaces are also formed passages by which two separate air streams are conveyed through a condenser 30 and an evaporator 32, respectively, which are of an already known type.
  • said condenser 30 extends across the whole height of two spaces overlying and underlying saidplanar portion 28 of the top structural component 12, in
  • the evaporator 32 that is supported by a cantilever extending tray 34 formed by an extension of said planar member 28 defines one main side of the space above said planar member 28 and is crossed only by the air stream delivered by said coldcircuit fan 16.
  • the air to be cooled through the evaporator 32 is sucked from an opening 36 (see FIGS. 3 and 6), then flows axially through a passage 38 (see FIG. 6) and inside the centrifugal fan 16, preferably of a drum type, and is finally tangentially delivered into a scroll conveyor 40 (see FIGS. 4 and 6) leading toan opening 42 of said planar member 28. Said air stream flows then into said upper space, sidewise the heat insulating partition component 14, whereafter it is delivered across the evaporator 32 in a direction F, as indicated in FIGS. 4 and 7.
  • the warm circuit comprises a plurality of openings formed in the lower part of condenser 30, which in turn rests on a tray 44. (FIG. 4) rigidly resured to the bottom component 10. More detailedly, said openings comprise a first opening 46, leading to a space partly takenup by said motor 20 and separated from the space leading to said opening 36 by inclined partition walls 48, and a second opening 50 leading to a space wherein said compressor unit 22 is housed. The air stream flowing across said opening 50 cooperates to dissipate the heat generated by said compressor unit 22. The air sucked through both said openings 46 and 50 axially flows in either directions 52 and 54 as indicated in FIG.
  • said components and 12 are rather complicated. However, they can be molded dies that can be juxtaposed at least partialiy in a plane as indicated by VI-VI in FIG. 5, and partially in other suitably selected planes.
  • Said components comprise many flat surfaces and many curved surfaces (as e.g., the surfaces defining said scroll shaped walls of fan conveyors), as well as surfaces at right angles and other surfaces defining angles far from 90 (e.g., walls 48). Said different surfaces achieve a high mechanical strength and stability against deformations, due to the juxtaposition of said two components in said 'plane VI-Vl.
  • the contacting opposed edges of said components may be suitably shaped in order to ensure firm abutting joints.
  • said structural components and in particular said bottom component 10 operate also as supporting means for said air conditioner electromechanical elements and in particular said fan axes and motor shaft.
  • thermoplastic synthetic polymers having an essentially linear molecular structure, as e.g., polyamides, polyesters and copolymers or mixtures thereof, reinforced with glass fibres having a very small length, which are already well known as molding materials.
  • the use of such materials, along with said previously described structural features of air conditioner components allow to obtain structures having a very high stiffness and dimensional stability, even under wide room temperature changes, thus affording to the air conditioners highly desirable properties, as, e.g., a thermal resistance, a silent operation, a physical strength and so on.
  • the structural component 14, which does not have a physical strength function but is merely an intervening wall and heat insulator between warm and cold air streams, may be made of any high thermal insulating material, as, e.g., expanded polystyrene, and can be molded in one piece.
  • a combination comprising a motor and a pair of centrifugal fans driven by said motor and arranged on opposite sides of and along a common axis with said motor; and a casing surrounding said motor and said fans, said casing comprising two integral main components meeting each other along a plane including said axis and being fixedly connected to each other, each of said components having a plurality of walls extending transverse to said axis and respectively aligned with transverse walls of said other component so as to divide said casing into two chambers respectively housing said fans and a third chamber located between said two chambers and housing said motor, each of said transverse walls being provided with substantially semi-circular opening forming with the semi-circular opening in the corresponding transverse wall of the other component as axial inlet opening of circular cross section for the respective fan and each of said components having a curved wall between the transverse walls defining each of said two chambers and meeting the curved wall of the other component in said plane so that the meeting curved walls define a scroll-shaped space surrounding
  • nent supported on said top wall and forming passages for directing an air stream emanating from one of said fans over said condenser and an air stream emanating from the other of said fans over said evaporator.
  • thermoplastic material comprises expanded polystyrene.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
US00154956A 1970-06-20 1971-06-21 Air conditioner Expired - Lifetime US3756039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2632770 1970-06-20

Publications (1)

Publication Number Publication Date
US3756039A true US3756039A (en) 1973-09-04

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Family Applications (1)

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US00154956A Expired - Lifetime US3756039A (en) 1970-06-20 1971-06-21 Air conditioner

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US (1) US3756039A (it)
AT (1) AT313530B (it)
CH (1) CH529976A (it)
DE (1) DE2130289A1 (it)
ES (1) ES196851Y (it)
FR (1) FR2099201A5 (it)
GB (1) GB1349087A (it)
NL (1) NL7108524A (it)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073245U (it) * 1973-11-02 1975-06-27
US3906741A (en) * 1973-03-21 1975-09-23 Burton Alexander Terry Chassis for an assembly
US4672819A (en) * 1985-08-29 1987-06-16 Diesel Kiki Co., Ltd. Cooling unit
US4747275A (en) * 1987-09-18 1988-05-31 Carrier Corporation Apparatus for controlling flow through a centrifugal impeller
US4800734A (en) * 1987-11-02 1989-01-31 White Consolidated Industries, Inc. Room air conditioner
US4840041A (en) * 1988-04-26 1989-06-20 Nervina Eugene E Air conditioner wall sleeve
EP0424614A1 (en) * 1989-09-25 1991-05-02 Delchi/Carrier S.P.A. Airconditioning unit
US5065596A (en) * 1990-05-11 1991-11-19 Whirlpool Corporation Dual louvered side air discharge openings for room air conditioner
US5065597A (en) * 1990-05-11 1991-11-19 Whirlpool Corporation Dual side discharge air housing for room air conditioner
US5081849A (en) * 1990-05-11 1992-01-21 Whirlpool Corporation Assembly method and construction for a room air conditioner
US5085057A (en) * 1990-05-11 1992-02-04 Whirlpool Corporation Dual side discharge room air conditioner with foamed insulation air passage walls
US5622058A (en) * 1995-06-07 1997-04-22 U.S. Natural Resources, Inc. Modular room air conditioner
US5623837A (en) * 1994-06-03 1997-04-29 Hyundai Motor Company, Ltd. Air conditioning system for a vehicle
US5638693A (en) * 1995-03-20 1997-06-17 Lg Electronics Inc. Room air conditioner
US5775125A (en) * 1995-12-06 1998-07-07 Matsushita Industrial Electric Co., Ltd. Integrated air conditioner
US5943873A (en) * 1997-05-29 1999-08-31 Daewoo Electronics Co., Ltd. Room air conditioner box having isolation wall sections
US6023936A (en) * 1997-07-31 2000-02-15 Daewoo Electronics Co., Ltd. Indoor unit of an air conditioner
US6095281A (en) * 1998-10-08 2000-08-01 Jiangsu Chulan Refrigentating Low noise air conditioner housing
EP1035384A1 (en) * 1998-09-30 2000-09-13 Daikin Industries, Ltd. Air conditioning unit
US6134909A (en) * 1998-11-25 2000-10-24 Carrier Corporation Evaporator housing
US6161609A (en) * 1998-11-25 2000-12-19 Carrier Corporation Flow control apparatus
US6196013B1 (en) * 1998-02-19 2001-03-06 Samsung Electronics Co., Ltd. Fan casing of window type air conditioner
US6484794B1 (en) * 2000-07-06 2002-11-26 Edward R. Schulak Energy transfer system for cold storage facilities
US6606878B1 (en) * 2002-05-14 2003-08-19 Whirlpool Corporation Divider wall for a room air conditioner
US6718787B1 (en) * 2003-05-05 2004-04-13 Carrier Corporation Supply air blower design in bus air conditioning units
US6915841B2 (en) * 2002-05-23 2005-07-12 Whirlpool Corporation Flexible size air conditioner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289314B (en) * 1994-05-05 1998-09-16 Bentone Electro Oil Ab Arrangement in an oil burner
US6044810A (en) * 1998-01-30 2000-04-04 Caterpillar Inc. Fan assembly including a fan guard having a void with an interior filler material disposed therein

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071366A (en) * 1933-06-29 1937-02-23 Baldwin Southwark Corp Fabricated structure for air conditioning units
US2269205A (en) * 1940-07-11 1942-01-06 Gen Electric Air cooling apparatus
US2751760A (en) * 1954-11-23 1956-06-26 Whirlpool Seeger Corp Two-piece room air-conditioner cabinet
US2939297A (en) * 1957-11-25 1960-06-07 Borg Warner Air conditioners
US2945362A (en) * 1957-05-06 1960-07-19 Gen Motors Corp Air conditioner
US2945359A (en) * 1958-09-22 1960-07-19 Carrier Corp Self-contained air conditioning units
US2984089A (en) * 1958-11-12 1961-05-16 Amana Refrigeration Inc Air conditioner
FR1362186A (fr) * 1963-06-27 1964-05-29 Riello Condizionatori S P A Di Conditionneur d'air à ventilateurs centrifuges
US3406530A (en) * 1965-09-16 1968-10-22 Riello Giordano Air conditioner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071366A (en) * 1933-06-29 1937-02-23 Baldwin Southwark Corp Fabricated structure for air conditioning units
US2269205A (en) * 1940-07-11 1942-01-06 Gen Electric Air cooling apparatus
US2751760A (en) * 1954-11-23 1956-06-26 Whirlpool Seeger Corp Two-piece room air-conditioner cabinet
US2945362A (en) * 1957-05-06 1960-07-19 Gen Motors Corp Air conditioner
US2939297A (en) * 1957-11-25 1960-06-07 Borg Warner Air conditioners
US2945359A (en) * 1958-09-22 1960-07-19 Carrier Corp Self-contained air conditioning units
US2984089A (en) * 1958-11-12 1961-05-16 Amana Refrigeration Inc Air conditioner
FR1362186A (fr) * 1963-06-27 1964-05-29 Riello Condizionatori S P A Di Conditionneur d'air à ventilateurs centrifuges
US3406530A (en) * 1965-09-16 1968-10-22 Riello Giordano Air conditioner

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906741A (en) * 1973-03-21 1975-09-23 Burton Alexander Terry Chassis for an assembly
JPS5073245U (it) * 1973-11-02 1975-06-27
US4672819A (en) * 1985-08-29 1987-06-16 Diesel Kiki Co., Ltd. Cooling unit
US4747275A (en) * 1987-09-18 1988-05-31 Carrier Corporation Apparatus for controlling flow through a centrifugal impeller
US4800734A (en) * 1987-11-02 1989-01-31 White Consolidated Industries, Inc. Room air conditioner
US4840041A (en) * 1988-04-26 1989-06-20 Nervina Eugene E Air conditioner wall sleeve
EP0424614A1 (en) * 1989-09-25 1991-05-02 Delchi/Carrier S.P.A. Airconditioning unit
US5065596A (en) * 1990-05-11 1991-11-19 Whirlpool Corporation Dual louvered side air discharge openings for room air conditioner
US5065597A (en) * 1990-05-11 1991-11-19 Whirlpool Corporation Dual side discharge air housing for room air conditioner
US5081849A (en) * 1990-05-11 1992-01-21 Whirlpool Corporation Assembly method and construction for a room air conditioner
US5085057A (en) * 1990-05-11 1992-02-04 Whirlpool Corporation Dual side discharge room air conditioner with foamed insulation air passage walls
US5623837A (en) * 1994-06-03 1997-04-29 Hyundai Motor Company, Ltd. Air conditioning system for a vehicle
US5638693A (en) * 1995-03-20 1997-06-17 Lg Electronics Inc. Room air conditioner
US5732565A (en) * 1995-06-07 1998-03-31 U.S. Natural Resources, Inc. Modular room air conditioner
US5622058A (en) * 1995-06-07 1997-04-22 U.S. Natural Resources, Inc. Modular room air conditioner
US5775125A (en) * 1995-12-06 1998-07-07 Matsushita Industrial Electric Co., Ltd. Integrated air conditioner
US5943873A (en) * 1997-05-29 1999-08-31 Daewoo Electronics Co., Ltd. Room air conditioner box having isolation wall sections
US6023936A (en) * 1997-07-31 2000-02-15 Daewoo Electronics Co., Ltd. Indoor unit of an air conditioner
US6196013B1 (en) * 1998-02-19 2001-03-06 Samsung Electronics Co., Ltd. Fan casing of window type air conditioner
EP1035384A4 (en) * 1998-09-30 2001-12-19 Daikin Ind Ltd AIR CONDITIONING
EP1035384A1 (en) * 1998-09-30 2000-09-13 Daikin Industries, Ltd. Air conditioning unit
US6095281A (en) * 1998-10-08 2000-08-01 Jiangsu Chulan Refrigentating Low noise air conditioner housing
US6134909A (en) * 1998-11-25 2000-10-24 Carrier Corporation Evaporator housing
US6161609A (en) * 1998-11-25 2000-12-19 Carrier Corporation Flow control apparatus
US6484794B1 (en) * 2000-07-06 2002-11-26 Edward R. Schulak Energy transfer system for cold storage facilities
US6606878B1 (en) * 2002-05-14 2003-08-19 Whirlpool Corporation Divider wall for a room air conditioner
US6915841B2 (en) * 2002-05-23 2005-07-12 Whirlpool Corporation Flexible size air conditioner
US6718787B1 (en) * 2003-05-05 2004-04-13 Carrier Corporation Supply air blower design in bus air conditioning units

Also Published As

Publication number Publication date
FR2099201A5 (it) 1972-03-10
NL7108524A (it) 1971-12-22
ES196851U (es) 1975-03-16
DE2130289A1 (de) 1971-12-30
ES196851Y (es) 1975-08-16
AT313530B (de) 1974-02-25
CH529976A (it) 1972-10-31
GB1349087A (en) 1974-03-27

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