EP0408999B1 - An air conditioning apparatus of the type having separate outdoor and indoor units - Google Patents

An air conditioning apparatus of the type having separate outdoor and indoor units Download PDF

Info

Publication number
EP0408999B1
EP0408999B1 EP90112828A EP90112828A EP0408999B1 EP 0408999 B1 EP0408999 B1 EP 0408999B1 EP 90112828 A EP90112828 A EP 90112828A EP 90112828 A EP90112828 A EP 90112828A EP 0408999 B1 EP0408999 B1 EP 0408999B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
connection element
outdoor
line
indoor
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
EP90112828A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0408999A1 (en
Inventor
Giovanni Redaelli
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.)
Delchi Carrier SpA
Original Assignee
Delchi Carrier SpA
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 Delchi Carrier SpA filed Critical Delchi Carrier SpA
Publication of EP0408999A1 publication Critical patent/EP0408999A1/en
Application granted granted Critical
Publication of EP0408999B1 publication Critical patent/EP0408999B1/en
Anticipated expiration legal-status Critical
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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • 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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/34—Protection means thereof, e.g. covers for refrigerant pipes
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements

Definitions

  • This invention relates to a refrigerating apparatus for air conditioning applications, according the preamble of Claim 1 (see US-A-2 760 354).
  • Apparatus of this kind have been known and appreciated especially for use with portable air conditioners, that is non-permanent applications.
  • highly valued is in this case the possibility to install the apparatus without cutting holes through window panes, it being sufficient that a window wing be kept ajar or a notch cut in a window frame and/or jamb for the connection element to pass through.
  • connection element is provided, in fact, in the form of a thick flattened cable. It has an outer sleeve or sheath which encloses the electrical harness (three cables), the refrigerating water connections (two lines) going either directions, and customarily a drain pipe to take to the outdoor heat exchanger condensation water which has formed over the indoor heat exchanger during operation in the cooling mode.
  • the problem that underlies this invention is one of reducing the size of the connection element to further enhance ease of installation of the apparatus.
  • the subject-matter of this invention is a refrigerating apparatus for air conditioning applications, of the type specified above, according to the characterizing part of Claim 1.
  • the reference numeral 1 generally denotes a refrigerating apparatus for air conditioning applications.
  • the apparatus 1 comprises an indoor unit 2, an outdoor unit 3, and a flexible connection element 4 extending between the indoor unit 2 and the outdoor unit 3.
  • the indoor unit 2 comprises an indoor heat exchanger 5 having conventional air-forcing means associated therewith which are only schematically depicted at 6 in the drawings.
  • the indoor unit 2 also comprises a compressor 7, a line 8 between the indoor heat exchanger 5 and the connection element 4, a line 9 between the indoor heat exchanger 5 and an intake port 10 of the compressor 7, and a line 11 between the connection element 4 and a delivery port 12 of the compressor 7.
  • a liquid/vapor separator 13 Provided on the line 9 near the intake port 10 of the compressor 7 is a liquid/vapor separator 13 adapted to prevent liquid-phase thermal fluid from entering the compressor 7 and damaging it.
  • the outdoor unit 3 comprises an outdoor heat exchanger 14 having conventional air-forcing means associated therewith which are only schematically shown at 15 in the drawings.
  • the outdoor unit 3 also includes two lines, 16 and 17, between the outdoor heat exchanger 8 and the connection element 4.
  • connection element 4 comprises an outer sleeve or sheath 18, wherein two longitudinal cavities 19 and 20 are defined which are separated by a partition 21.
  • connection element 4 comprises a condensation water drain pipe 22 and an electrical cable 23 of the three-wire type; both tube 22 and cable 23 are accommodated inside the cavity 20.
  • connection element 4 further comprises a first flexible line 24 connected at one end to line 11 of the indoor unit 2, and at the other end, to the line 17 leading to the outdoor unit 3, and a second flexible line 25 connected at one end to line 8 of the indoor unit 2 and to line 16 of the outdoor unit 3 at the other end.
  • the first flexible line 24 consists basically of a tube positioned within cavity 19 of the sleeve 18; the second flexible line 25 is, in turn, comprised of at least one capillary tube, preferably two capillary tubes in parallel, positioned within cavity 20.
  • the indoor heat exchanger 5 functions as the evaporator, the outdoor heat exchanger 14 as the condenser, and the second flexible line 25 as the expansion device.
  • the flexible connection element between the outdoor and indoor units is greatly reduced in size by virtue of the space requirements of the capillary tubes being much lower than those of a traditional tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP90112828A 1989-07-18 1990-07-05 An air conditioning apparatus of the type having separate outdoor and indoor units Expired - Lifetime EP0408999B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8921213A IT1231285B (it) 1989-07-18 1989-07-18 Apparecchiatura per il condizionamento dell'aria del tipo ad unita' esterna ed interna separate.
IT2121389 1989-07-18

Publications (2)

Publication Number Publication Date
EP0408999A1 EP0408999A1 (en) 1991-01-23
EP0408999B1 true EP0408999B1 (en) 1994-12-07

Family

ID=11178472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112828A Expired - Lifetime EP0408999B1 (en) 1989-07-18 1990-07-05 An air conditioning apparatus of the type having separate outdoor and indoor units

Country Status (3)

Country Link
EP (1) EP0408999B1 (es)
ES (1) ES2064542T3 (es)
IT (1) IT1231285B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2349192A (en) * 1991-07-05 1993-02-11 Maskinfabrikken Derby A/S Heat pumping system with flow restricting tube in inner cavity of suction conduit
ES2088706B1 (es) * 1992-04-27 1997-03-01 Moreno Carlos Garcia Equipo para climatizacion y presuracion de se¦ales ferroviarias, con localizacion subterranea o en superficie.
IT1274693B (it) 1994-08-01 1997-07-24 Delchi Carrier Spa Apparecchiatura per il condizionamento dell'aria di ambienti civili del tipo portatile
BRPI0703622A2 (pt) * 2007-09-12 2009-04-28 Whirlpool Sa màdulo de refrigeraÇço e sistema de refrigeraÇço
DE102021120848A1 (de) * 2021-08-11 2023-02-16 Vaillant Gmbh Verfahren zur Herstellung eines Leitungsbündels, Leitungsbündelrohling sowie Klima- bzw. Heizungsanlage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057975A (en) * 1976-09-07 1977-11-15 Carrier Corporation Heat pump system
EP0162720A2 (en) * 1984-05-23 1985-11-27 Mitsubishi Denki Kabushiki Kaisha Heat pump with capillary tube-type expansion device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708833A (en) * 1953-02-27 1955-05-24 Joseph G Nigro Mobile air conditioning means for window openings
US2760354A (en) * 1953-12-09 1956-08-28 Lawrence P Brady Portable air conditioning unit
US3611743A (en) * 1969-11-19 1971-10-12 Anthony J Manganaro Room air conditioner
DE7717886U1 (de) * 1977-06-07 1977-09-22 Linde Hausgeraete Gmbh, 6502 Mainz- Kostheim Gefriergeraet mit einem als waermeaustauscher dienenden verfluessiger
DE2826813A1 (de) * 1978-06-19 1979-12-20 Braun Ag Nach dem waermepumpe-prinzip arbeitende klimaanlage
DE3477417D1 (en) * 1983-08-02 1989-04-27 Ronald Hallett Pipe freezing device
GB2172094B (en) * 1985-01-19 1989-04-19 Daikin Ind Ltd An outdoor unit for an air conditioning apparatus of a through-the-wall multitype

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057975A (en) * 1976-09-07 1977-11-15 Carrier Corporation Heat pump system
EP0162720A2 (en) * 1984-05-23 1985-11-27 Mitsubishi Denki Kabushiki Kaisha Heat pump with capillary tube-type expansion device

Also Published As

Publication number Publication date
IT1231285B (it) 1991-11-28
EP0408999A1 (en) 1991-01-23
IT8921213A0 (it) 1989-07-18
ES2064542T3 (es) 1995-02-01

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