US3766751A - Air conditioning unit with condensate disposal - Google Patents

Air conditioning unit with condensate disposal Download PDF

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Publication number
US3766751A
US3766751A US00249644A US3766751DA US3766751A US 3766751 A US3766751 A US 3766751A US 00249644 A US00249644 A US 00249644A US 3766751D A US3766751D A US 3766751DA US 3766751 A US3766751 A US 3766751A
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United States
Prior art keywords
fan
liquid
baffle
air
compartment
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Expired - Lifetime
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US00249644A
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English (en)
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D Ball
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Carrier Corp
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Carrier Corp
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Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
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Publication of US3766751A publication Critical patent/US3766751A/en
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    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F13/224—Means for preventing condensation or evacuating condensate for evacuating condensate in a window-type room air conditioner
    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F2013/225—Means for preventing condensation or evacuating condensate for evacuating condensate by evaporating the condensate in the cooling medium, e.g. in air flow from the condenser

Definitions

  • ABSTRACT 52 U.S. c1 62/280, 62/279 261/84
  • An air condimning apparatus emPmYing pirating 51 1m. 01 F251) 47/00 device lift mdensate the base of the 58 Field of Search 62/279 280- 261/84 and disperse the Water in finedroplets agaim the denser coil through the interaction of the condenser
  • a more common method to dispose of the condensate is to provide a slinger ring on the periphery of the condenser fan blades, the ring dipping into the water collected in the base pan of the unit and scooping the water up into the air stream generated by the fan to blow the water against the condenser coil.
  • Numerous problems may also be encountered with slinger rings.
  • the majority of self-contained units, particularly window air conditioning units employ a single, doubleended motor to drive both the condenser and the evaporator fans. Since the position of the slinger ring relative to the base pan of the unit is critical for optimum operation, the condenser fan, along with the motor and evaporator fan, must be carefully positioned relative to the base pan of the unit.
  • the evaporator fan may be a centrifugal type fan within a scroll housing, it is desirable to position the evaporator fan accurately relative to the scroll. However, due to the use of the slinger ring, the fan is positioned to provide optimum conden sate disposal rather than optimum air flow efficiency.
  • aspirator type condensate disposal devices of the type illustrated in US. Pat. No. 3,079,766, and 3,079,767 have been employed
  • the aspirator devices ordinarily require a fairly high air flow for proper operation. Since it is common practice to provide a low fan speed setting on self-contained air conditioning units for maximum dehumidification, aspirator efficiency is at a minimum due to the low fan speed at the same time condensate collection is at a maximum. As such, the use of aspirators in self-contained air conditioning units has heretofore been extremely limited.
  • This invention relates to an aspirator type liquid disposal construction for lifting and dispersing liquid from a compartment having a fan orifice partitiondividing the compartment into an inlet chamber and a discharge chamber.
  • Fan means adapted for cooperation with the orifice partition are provided for moving air from the inlet chamber to the discharge chamber.
  • Baffle means having a curl portion formed thereon are disposed within the inlet chamber adjacent a discontinuity formed in a ring portion of the fan orifice.
  • Blade tip vortices passing from between the orifice ring and the fan blades through the discontinuity in the orificering are expanded and consolidated within the baffle means to form an intense vortex causing the liquid in the base of the compartment below the baffle means to be lifted in droplet form into the path of the air entering the fan means to entrain liquid droplets in the air stream passing into the discharge chamber.
  • FIG. 1 is a rear elevational view, partly in section of a window air conditioning unit with a portion of the condenser coil broken away for clarity.
  • FIG. 2 is a partial sectional view with certain parts shown full of the air conditioning unit taken along line II-'-II of FIG. 1.
  • FIG. 3 isa fragmentary isometric view of the fan orifice partition and a portion of the base pan of theair conditioning unit illustrated in FIGS. 1 and 2.
  • a window air conditioning unit 1 including a casing 3 adapted for attachment to a suitabe base pan 5.
  • a fan orifice partition 7 is mounted within the outside compartment of the casing 3 for cooperation with a condenser coil 9 mounted within the casing'and forming the back face thereof.
  • Asuitable fan 11 is mounted within the unit for cooperation with orifice partition 7 to circulate air from inlet chamber 13 formed within the casing into the discharge chamber 15 formed by fanv orifice partition 7 and condenser coil 9.
  • Suitable openings (not shown) are provided for entry of ambient air into chamber 13 for-passage from'chamber 13 through condenser coil 9 to condense high pressure refrigerant therein.
  • the fan orifice partition 7 is provided with a scoop or baffie 17 extending from the base 5 in an upward direction into the path of air flowing from inlet chamber 13 intodischarge chamber 15.
  • the baffle portion is concave, the top edge 18 of the-baffle projecting toward the fan blades and terminating closely adjacent the leading edges 20 of the fan 11.
  • the vertical edge of bafflel7 which is centrally located relative to the fan orifice opening terminates in a curl portion 19 which also projects toward the leading edges 20 of the fan .11. The curl portion 19 'ward the inlet-side of the fan.
  • baffle 17 is basically disposed within a portion of the space cre ated by the concave formation of baffle 17.
  • a suitable dam or flap member 21 is associated with orifice partition 7 for cooperation with a ramp or raised portion 23 formed within the base pan.
  • the raised portion 23 terminates at edge 24 beneath scoop 17 to form a depressed area for collection of liquid beneath the a scoop 17.
  • An orifice ring 27 formed on partition 7 is adapted to completely surround the periphery of the fan except for a small area between flap 21 and curl 19.
  • condensate formed on the evaporator coil (not shown) will collect in the base pan and drain through opening 28 in partition 7 into the condensate collection portion 29 24 into the depressed area formed beneath scoop 17.
  • the low pressure on the fan side of scoop 17 generated by the fan, in conjunction withthe air flow along the top of surface 23 from the high pressure side of the orifice partition 7 to the low pressure area within scoop 17 intensifies the blade tip air vortices which are allowed to pass into the vicinity of the scoop 17 and curl 19 due to the discontinuity in ring 27.
  • the eye of the vortex generated by these elements is located in the area of curl 19.
  • the swirling motion imparted by the air vortices to the liquid pool collected beneath scoop 17 reacts with edge 24 to break up the film of water flow-- ing over raised portion 23 into droplets.
  • the vortices also cause water to flow along the concave inner surface of scoop 17 and the inner surface of curl 19.
  • a suitable splash shield 31 may be provided to prevent' water from being splashed baclt to- The fan blade'tip vortices whichare allowed to pass into the area adjacent scoop 17 and curl 19 due to the 'discontinuityin ring 27'are greatly intensified by scoop.
  • a device for lifting and dispersing liquid including means forming a compartment;
  • a partition dividing said compartment into an inlet chamber and a discharge chamber, said partition having a fan orifice formed therein;
  • a fan adapted for cooperation with said orifice for moving air from the inlet chamber to the discharge chamber
  • liquid storage means associated with said compartment for collection of liquid within the discharge.
  • baffle means disposed within the inlet chamber of said compartment inthe path of air entering said fan, the surface of said baffle means'facing said fan with said partition to encircle the periphery of said fan, said orifice ring having a discontinuity therein opposite said concave baffle means and said curl means to allow passage of fan tip vortices into said-baffle means and said curl means to form an intense vortex therein.
  • a device for lifting and dispersing liquid further including flap means associated with 'said partition, said flap means being disposed substantially perpendicular to said partition adjacent said liquid storage means, said flap being adapted to divert liquid and air directed thereto by the tangential flow of air from said fan towards said baffle means to increase the intensity of the vortex generated within said baffle means and said curl means.
  • a device for lifting and dispersing liquid further including ramp means adjacent said flap means, said ramp means terminating adjacent said baffle means to form a depression beneath said baffle means, the tangential flow of air from said fan causing liquid to flow, up onto said ramp means and be de-- flected by said flap means over the edge of saidramp into the depression beneath said baffle means, passage of liquid over the edge of said ramp means toward said baffle means causing the film of liquid on said ramp to break up into droplets for en'trainmentin-the vortex a fanorifice partition dividing said compartment-into an inlet chamber and a discharge chamber;
  • liquid-storage means associated withsaid compart- 'ment for collection of liquid-within the'discharge' chamber of said compartment adjacent said fan;
  • bafile means disposed-within the inletcharnber' of said compartment in the path'of air entering-said fan, the surface of said being concave, and g curl means associated with one side of said concave baffle means to lift liquidfrom said liquid storage baffle means facingsaid fan.
  • An air conditioning unit further including a fan orifice ring associated with said partition to encircle the periphery of said fan, said orifice ring having a discontinuity therein opposite said concave baffle means and said curl means to allow passage of fan tip vortices into said baffle means and said curl means to form an intense vortex therein.
  • An air conditioning unit further including flap means associated with said partition, said flap means being disposed substantially perpendicular to said partition adjacent said liquid storage means, said flap being adapted to divert liquid and air directed thereto by the tangential flow of air from said fan towards said baffle means to increase the intensity of the vortex generated within said baffle means and pression beneath said baffle means, passage of liquid over the edge of said ramp means toward said baffle means causing the film of liquid on said ramp means to break up into droplets for entrainment in the vortex generated within said baffle means and said curl means to lift the droplets into the path of air entering said fan.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
US00249644A 1972-05-02 1972-05-02 Air conditioning unit with condensate disposal Expired - Lifetime US3766751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24964472A 1972-05-02 1972-05-02

Publications (1)

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US3766751A true US3766751A (en) 1973-10-23

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US00249644A Expired - Lifetime US3766751A (en) 1972-05-02 1972-05-02 Air conditioning unit with condensate disposal

Country Status (8)

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US (1) US3766751A (fr)
AR (1) AR194425A1 (fr)
AU (1) AU471740B2 (fr)
BR (1) BR7303133D0 (fr)
ES (1) ES414241A1 (fr)
FR (1) FR2183496A5 (fr)
PH (1) PH12582A (fr)
ZA (1) ZA732542B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025587A (en) * 1974-04-10 1977-05-24 White-Westinghouse Corporation Air humidifier
US4120170A (en) * 1977-04-04 1978-10-17 Carrier Corporation Apparatus for reducing condensate noise in an air conditioner
US4633680A (en) * 1985-09-20 1987-01-06 Carrier Corporation Double wall condenser orifice
US4793148A (en) * 1987-05-13 1988-12-27 Sanyo Electric Co., Ltd. Air conditioning apparatus
US5215441A (en) * 1991-11-07 1993-06-01 Carrier Corporation Air conditioner with condensate slinging fan
US6298682B1 (en) * 1998-09-16 2001-10-09 Carrier Corporation Condensate deflector for an air conditioner
ES2161584A1 (es) * 1998-08-13 2001-12-01 Bsh Fabricacion Sa Acondicionador de aire movil.
US6363735B1 (en) * 2000-08-17 2002-04-02 Carrier Corporation Air conditioner condenser orifice member having condensate suction port
US20130102238A1 (en) * 2010-06-29 2013-04-25 Gree Electric Appliances, Inc. Of Zhuhai Indoor unit of air conditioner
US8683821B2 (en) 2010-04-15 2014-04-01 Franklin Electric Company, Inc. Sediment trap system and method
CN108006834A (zh) * 2018-01-30 2018-05-08 广东美的制冷设备有限公司 空调柜机和具有其的空调器
CN116007058A (zh) * 2022-12-21 2023-04-25 珠海格力电器股份有限公司 一种风机组件及空调室内机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2052430B1 (es) * 1991-02-11 1998-01-01 Carrier Corp Cubierta para recinto exterior de un sistema de acondicionamiento de aire.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079769A (en) * 1961-10-25 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3079766A (en) * 1961-06-21 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3079767A (en) * 1961-06-21 1963-03-05 Gen Electric Water entrainment means for air conditioning apparatus
US3079768A (en) * 1961-10-25 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3159984A (en) * 1963-02-27 1964-12-08 Westinghouse Electric Corp Air conditioner
US3401534A (en) * 1967-01-26 1968-09-17 Philco Ford Corp Condensate removal means for air conditioners
US3442092A (en) * 1967-12-04 1969-05-06 Space Conditioning Inc Blower and aspirator tube assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079766A (en) * 1961-06-21 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3079767A (en) * 1961-06-21 1963-03-05 Gen Electric Water entrainment means for air conditioning apparatus
US3079769A (en) * 1961-10-25 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3079768A (en) * 1961-10-25 1963-03-05 Gen Electric Condensate disposal arrangement for air conditioning apparatus
US3159984A (en) * 1963-02-27 1964-12-08 Westinghouse Electric Corp Air conditioner
US3401534A (en) * 1967-01-26 1968-09-17 Philco Ford Corp Condensate removal means for air conditioners
US3442092A (en) * 1967-12-04 1969-05-06 Space Conditioning Inc Blower and aspirator tube assembly

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025587A (en) * 1974-04-10 1977-05-24 White-Westinghouse Corporation Air humidifier
US4120170A (en) * 1977-04-04 1978-10-17 Carrier Corporation Apparatus for reducing condensate noise in an air conditioner
US4633680A (en) * 1985-09-20 1987-01-06 Carrier Corporation Double wall condenser orifice
US4793148A (en) * 1987-05-13 1988-12-27 Sanyo Electric Co., Ltd. Air conditioning apparatus
US5215441A (en) * 1991-11-07 1993-06-01 Carrier Corporation Air conditioner with condensate slinging fan
ES2161584A1 (es) * 1998-08-13 2001-12-01 Bsh Fabricacion Sa Acondicionador de aire movil.
US6298682B1 (en) * 1998-09-16 2001-10-09 Carrier Corporation Condensate deflector for an air conditioner
US6363735B1 (en) * 2000-08-17 2002-04-02 Carrier Corporation Air conditioner condenser orifice member having condensate suction port
US8683821B2 (en) 2010-04-15 2014-04-01 Franklin Electric Company, Inc. Sediment trap system and method
US20130102238A1 (en) * 2010-06-29 2013-04-25 Gree Electric Appliances, Inc. Of Zhuhai Indoor unit of air conditioner
CN108006834A (zh) * 2018-01-30 2018-05-08 广东美的制冷设备有限公司 空调柜机和具有其的空调器
CN116007058A (zh) * 2022-12-21 2023-04-25 珠海格力电器股份有限公司 一种风机组件及空调室内机
CN116007058B (zh) * 2022-12-21 2024-06-04 珠海格力电器股份有限公司 一种风机组件及空调室内机

Also Published As

Publication number Publication date
AU471740B2 (en) 1976-04-29
AU5452273A (en) 1974-10-17
FR2183496A5 (fr) 1973-12-14
AR194425A1 (es) 1973-07-13
ZA732542B (en) 1974-03-27
ES414241A1 (es) 1976-01-16
PH12582A (en) 1979-06-20
BR7303133D0 (pt) 1974-08-29

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