US3012760A - Air conditioning units - Google Patents

Air conditioning units Download PDF

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Publication number
US3012760A
US3012760A US643428A US64342857A US3012760A US 3012760 A US3012760 A US 3012760A US 643428 A US643428 A US 643428A US 64342857 A US64342857 A US 64342857A US 3012760 A US3012760 A US 3012760A
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US
United States
Prior art keywords
air
nozzle
unit
heat exchange
exchange member
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
US643428A
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English (en)
Inventor
William L Mcgrath
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.)
Carrier Corp
Original Assignee
Carrier Corp
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
Priority to BE565238D priority Critical patent/BE565238A/xx
Priority to BE565273D priority patent/BE565273A/xx
Application filed by Carrier Corp filed Critical Carrier Corp
Priority to US643428A priority patent/US3012760A/en
Priority to FR1198799D priority patent/FR1198799A/fr
Priority to GB5616/58A priority patent/GB821805A/en
Application granted granted Critical
Publication of US3012760A publication Critical patent/US3012760A/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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • 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
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/228—Heat exchange with fan or pump
    • Y10S165/30—Injector-type pump

Definitions

  • This invention relates to air conditioning units and more particularly to improved air conditioning units containing means to maintain a supply of primary air at esired conditions of pressure and to discharge the primary air within the unit in such a manner as to induce a stream of secondary air from the area being conditioned through a heat exchange member in the unit to mix with the stream of primary air, the mixture of primary and secondary air being discharged within the area being treated.
  • the system outlined by the Carrier patent has been acknowledged by the air conditioning industry to present an ideal method of air conditioning from the standpoint of operation, maintenance and economy. Owners of buildings, however, have demanded that these units be made especially compact since the space so conditioned is rented on the basis of square foot area. A bulky unit will severely decrease the rental value of a space being so conditioned.
  • the chief object of the present invention is to provide an improved high capacity induction unit.
  • An object of the invention is to provide an improved air conditioning unit capable of making effective use of a limited amount of heat exchange surface.
  • Another object is to provide an improved air conditioning unit utilizing improved induction nozzles.
  • a still further object is to provide an air conditioning unit capable of harmonizing with the esthetic qualities of the building without sacrificing capacity. jects of the invention would be more readily perceived from the following description.
  • This invention relates to an air conditioning unit which comprises in combination a casing including a plenum Cir Other obtherein, said plenum being connected to a source of primary air, air discharge means connected to said plenum, a heat exchange member adapted to be connected to a source of supply of heat exchange medium, said air discharge means comprising a plurality of nozzle members arranged to discharge a swirling helical airstream of expanding diameter adapted to induce a secondary air stream from the area being conditioned through the heat exchange member into heat exchange relation with medium passing therethrough to mix with the primary air being discharged from the plenum through the discharge means and means for discharging a mixture of primary air and secondary air within the area being conditioned.
  • FIGURE 1 is a perspective view of the air conditioning unit of the present invention installed in a room being conditioned;
  • FIGURE 2 is a sectional view of the unit
  • FIGURE 3 is a sectional view of the unit with the heat exchange member removed
  • FIGURE 4 is a plan view of the unit
  • FIGURE 5 is a perspective view of the simplified air discharge means for use in the unit
  • FIGURE 6 is a plan view similar to FIGURE 4 illustrating a modification of the invention.
  • FIGURE 7 is a further modification of the invention as illustrated in FIGURE 6
  • an air conditioning unit placed beneath the window of a room being treated.
  • This air conditioning unit includes a casing 2 which is provided with two air discharge openings 4 and a series of louvered air inlets 3 on the side of the casing.
  • Air conditioning units of this type are placed beneath most of the windows in the building in such a manner so as to provide a peripheral blanket of air about the building. It will be immediately appreciated that in buildings, such as office buildings, hotels, et cetera, the number of units employed may easily exceed a thousand. It will be appreciated in certain instances the unit may be externally located, such as illustrated in FIGURE 1 or the unit itself may be furred into the wall so as to harmonize with the surroundings.
  • FIGURE 2 there is shown a sectional view of the unit wherein the section is taken in a plane normal to the front of the unit, the afore-mentioned louvered openings 3 and 4 are shown and at the lower part of the unit there is indicated a plenum 5 which is preferably lined with an insulating material 7.
  • a circular conduit 6 Leading into this unit is a circular conduit 6, which is connected to the central station of the air conditioning system and is utilized to supply high pressure primary air to the plenum 5.
  • a bafile 8 Located in this plenum. It is apparent that other arrangements of battles and sound absorbing means may be utilized within this plenum while still remaining within the scope of the present invention.
  • a heat exchange member is located above the plenum 5.
  • This heat exchange member 10 is of the plate fin type and is made up of a plurality of parallel spaced trapezoidal fin members 11 attached to tubes 12. These tubes 12 are interconnected by suitable return bends so as to form a circuit through which heat exchange medium is circulated. These fins, as mentioned, are of a trapezoidal shape with the lower portion of the plate being of a greater width so as to have a greater surface area at the lower portion thereof, this area decreases as the distance from the plenum increases. The purpose of this construction will be described more fully hereinafter.
  • nozzle means'9 which consist of a plurality of nozzles arranged in clusters, each cluster having. a substantially circular pattern, the nature of which will be described more fully hereinafter.
  • the nozzles are located in the upper wall of the plenum and are adapted to discharge the air supplied to plenum 5 into the air conditioning unit in such a manner as to induce a secondary air stream through the inlet 3 and the heat exchange member 16.
  • bafiie 14 Located above the nozzle cluster 9 are side baffles 13 and 13 which are utilized to maintain the contour of the helical air streams within the air conditioning unit. Located beneath the outlet 4 of the air conditioning unit is a bafiie 14 which directs the air stream emitted from the air conditioning unit away from the window. The manner in which this is accomplished will also be described more fully hereinafter.
  • FIGURE 3 there is shown a view in elevation of the unit with the heat exchange member removed so as to view the internal sections of the air conditioning unit. It will be noted that air is supplied through a spiral conduit 6 which extends into one side of the air conditioning unit.
  • FIGURE 3 shows an embodiment of the unit employing four nozzle clusters 9, 9, and 20'. It will also be noted that the nozzle clusters are located in pairs, namely, 9 and 9, and 2t and 20. The clusters 9 and 9 cooperate and they discharge into confined paths to the specific outlet 4 restrained by the bafiles 13 and 13'.
  • a front view of the baffle 14 is shown and it is indicated as a plate which interrupts the flow of the tapered helical air streams emerging from the nozzle cluster 9.
  • the object of such a bafile is to prevent the flow of air toward the window of the room by acting as a deflector so as to direct the air in a screen passing upwardly in front of the Window and into the room.
  • a second set of nozzle clusters 20 and 20 which are confined to their specific paths by the side baffies 22 and 22 which is an equivalent structure to that shown previously with a bafile 21 whose function is similar to the bafiie 14.
  • FIGURE 4 illustrates a plan view of the unit previously shown in FIGURES 2 and 3. From this view it is readily apparent that nozzle clusters 9, 9, 20 and 20 each comprises a center nozzle with a plurality of other nozzle members dispersed in a general circular pattern about the central nozzle member. The location of the baffle plates 14 and 21 are shown and it is clear at this point that as the air emerges through the opening it will be restrained from passing toward the outer wall or window of the building by means of these bafi le plates which direct the air impinging thereon in a vertical air stream into the room.
  • FIGURE 4 also indicates the heat exchange member 10 with its return bend 28 and its cooling medium inlet and outlet 26.
  • the nozzle construction consists of five nozzle members.
  • a center nozzle member is attached to the plate 29 which comprises the upper portion of the plenum 5.
  • a plurality of nozzle members 31, 32, 33 and 34 are placed about the center nozzle 30.
  • the nozzle members in this particular embodiment lie in a concentric circle about the nozzle 30.
  • Nozzle members 31, 32, 33 and 34 are directed in a direction tangential to a circle drawn through the afore-mentioned nozzle members concentric with the nozzle 30.
  • the nozzle 30 is directed in a direction normal to the plane of the member 29.
  • Nozzles 31, 32, 33 and 34 are arranged in an acute angle with respect to the plate 29.
  • FIGURE 6 there is shown a modification of a nozzle cluster orientation of the invention as previously illustrated in FIGURE 4.
  • the heat exchange member 10 is located in the forward section of the unit and may be of a similar cross section and plate size as the heat exchange member 10 shown in FIGURE 2.
  • the various nozzle clusters are equally distant along the entire length of the unit with the alternate nozzle sections orientated in different directions so that a staggered line of clockwise and counter-clockwise rotating air streams are emitted by the various nozzles 40, 41, 42 and 43.
  • FIGURE 7 Another embodiment of the invention is illustrated in FIGURE 7.
  • the entire plan of such a nozzle cluster and unit construction is to maintain the longest lineal length of air stream possible in front of the heat exchange member so that a greater amount of secondary air may be induced from the room being conditioned.
  • this particular construction makes it possible for the backmost nozzle members of each cluster to contribute to the induction effect.
  • the embodiment of FIGURE 7 has a nozzle mounting plate oriented in such a manner so that the plane of each cluster is disposed at an angle to a horizontal plane as viewed through the section taken in a plane parallel to the front of the unit.
  • the plenum is provided with two sets of nozzle clusters 55 and 56 which pass through the upper wall thereof.
  • the nozzle clusters 55 have a projection toward the left whereas the nozzle clusters 56 have a projection toward the right.
  • Nozzle clusters 55 pass air therefrom in a plurality of tapered helical paths toward the outlet 52. The paths are determined by the heat exchange member 10 (not shown) the back plate of the unit and the side bafiles 57 and 58.
  • a similar arrangement occurs on the right side of the unit wherein the clusters 56 pass air through the outlet 53 and the tapered helical paths are determined by the backplate of the unit and the side baffies 59 and 60.
  • a central station (not shown) supplies conditioned air to the duct 6 (FIGURE 3), and into the plenum S. Simultaneously the central station provides heating or cooling medium for the heat exchange member 10.
  • air from the duct 6 passes into the plenum 5 where the movement of air is sufficiently mufiled by the insulating material 7 which lines the plenum.
  • the air is then discharged upwardly through the nozzle clusters 9 and in the form of swirling air streams which are constrained by the back member 29 of the unit, the heat exchange member 10, the side bafiles in the unit and adjoining air streams.
  • the location of the side walls and the heat exchanger are such that an expanding opening is provided which in effect restrains and determines the particular shape of the air stream.
  • baffle 14 which deflects this component of air in such a manner so that this component joins the great mass of air passing through the opening 4 and forms a vertical screen before the window and then passes into the room.
  • the helical pattern within the unit insures a high degree of induction of secondary air and also makes full use of the depth of the unit by bringing all the nozzles therein into direct cooperation in such a manner so that the rear section of the unit is effectively utilized. It is well known that the amount of induction of secondary air is proportional to the length of the air stream within the confines of the unit.
  • the helical air stream is one of the methods of the present invention to achieve this lengthened air stream.
  • a heat exchanger of varying air resistance is used to take advantage of the greater inductive effect of the primary air adjacent the nozzles.
  • the heat exchanger used herein is of the plate fin type having a trapezoidal plate construction wherein the lower portion of the plates have a substantially greater surface area than the upper portion thereof.
  • FIGURE 3 there is shown an arrangement wherein the nozzle clusters are utilized in pairs so that the rotation of the air streams in a particular pair is in opposing relationship.
  • the adjoining air streams will assist one another and thereby produce a substantial increase in the induction rate.
  • the adjoining air streams will act as buffers toward one another and thereby insure that a substantial vortex is formed in each cluster throughout the entire depth of the tapered helical air stream.
  • FIGURE discloses an elemental nozzle cluster construction utilizing four nozzle members.
  • a center nozzle is provided whereabout are located four nozzles on a circle concentric with the center nozzle.
  • the direction of the nozzles have a projection which is tangential to the circle so drawn.
  • These peripheral nozzles are also directed at an angle from the plane of the nozzle plate 29.
  • the center nozzle will form a direct upward component of an air stream whereas the external nozzles will form a swirling mass of air constrained through a particular conical path by the environment within the unit which includes the back walls, the various battles, and the heat exchange member.
  • This particular nozzle orientation a substantial air flow is created within the area between the heat exchange member and the back wall 29 of the unit.
  • FIGURE 6 discloses a modification whose operation is similar to that of FIGURE 4, however, in this particular embodiment, the nozzles are spaced equally and instead of using side baflles, the air streams impinge in such a manner so that to form buffers and duplicate the baffle action of the previous embodiment.
  • This particular construction therefore permits the use of a greater number of nozzle clusters and makes greater use of a given amount of space within a particular air conditioning unit.
  • FIGURE 7 illustrates a modification of FIGURE 6 in which the particular nozzle clusters are placed at an angle so that the helical paths issuing therefrom do not have their vortices extending vertically but rather at an angle to a horizontal plane.
  • This particular embodiment especially emphasizes the concentrated induction process which can be carried out in a unit of limited height. By having the various helical tapered air paths inclined at an angle, a longer helical path of air may pass before a heat exchange member of limited height.
  • This construction especially lends itself to new structures wherein the entire wall is substantially made of glass with merely a slight parapet running along the periphery of the wall above the floor level. It will also be evident that this particular embodiment does not require the particular nozzle cluster illustrated in FIGURE 5 since the length of the primary air streams are considerably longer than the minimum distance from the nozzles to the outlet.
  • the air conditioning units of the present invention present extremely compact and elfective induction units especially adapted for modern buildings wherein the space available for these units is extremely limited. It will be noted that this particular result is achieved by a highly novel and effective heat exchange member combined with a novel form of nozzle cluster which is adapted to increase the effective heat exchange potential of the heat exchange member.
  • an air conditioning unit the combination of a casing, means defining an inlet to said casing, means de fining an outlet from said casing, a plenum located within said casing, said plenum being connected to a supply of primary air and nozzle means associated with said plenum, comprising a cluster of nozzles oriented in a general circular configuration adapted to discharge primary air to form a swirling primary air stream having the general shape of a helix of expanding diameter, said nozzles being formed in a wall of the plenum, the discharge of primary air from the nozzles inducing a stream of secondary air from said room through said inlet to mix with said primary air, the mixture being discharged through said outlet.
  • a casing having means defining an inlet and an outlet, a plenum located at the lower portion of the casing and adapted to receive primary air, a heat exchange member disposed adjacent said inlet, a plurality of nozzle clusters being linearly disposed in a wall of said plenum, each cluster including a circular orientation of nozzles to form a swirling air stream having the general form of a helix of expanding diameter, means located within said casing to confine said air streams whereby the primary air stream induces secondary air to pass through the inlet of the casing and into heat exchange relation with medium p ssing thr ugh said heat exchange member and to mix with said primary air stream whereby said swirling streams a of primary and secondary air are discharged through said outlet.
  • the heat exchange member includes a plurality of vertically disposed parallel fins having a general trapezoidal shape, the greater area of the fins being located adjacent the nozzle cluster and said area diminishing as the distance from the cluster is increased so as to compensate for the diminishing inductive effect of the nozzle cluster whereby the secondary air stream passes through the heat exchange member in a substantially uniform pattern.
  • an air conditioning unit the combination of a casing, means defining an inlet to said casing, means defining an outlet from said casing, a plenum located within said casing, said plenum being connected to a supply of primary air, a heat exchange member placed in said casing adjacent said inlet, said heat exchange member having a varying resistance across the face thereof to air passing therethrough, and means for discharging primary air from said plenum into the casing to induce a stream of secondary air through the inlet into the heat exchange member into heat exchange relation with medium passing therethrough, said passage of secondary air being uniform through said heat exchange member, said discharge means being placed within the casing to discharge the primary air in a path of flow between the discharge means and the outlet of a length substantially greater than the minimum distance between the discharge means and the outlet whereby the volume of secondary air uniformly induced through said heat exchange member is substantially proportional to the length of the air stream formed by the discharge means within the unit, said stream of primary air mixing with said secondary air, the mixture being discharged through said outlet, the primary air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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US643428A 1957-03-01 1957-03-01 Air conditioning units Expired - Lifetime US3012760A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE565238D BE565238A (et) 1957-03-01
BE565273D BE565273A (et) 1957-03-01
US643428A US3012760A (en) 1957-03-01 1957-03-01 Air conditioning units
FR1198799D FR1198799A (fr) 1957-03-01 1958-02-10 Appareil perfectionné de conditionnement d'air
GB5616/58A GB821805A (en) 1957-03-01 1958-02-20 Improvements in or relating to air conditioning units and methods of air conditioning

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US643428A US3012760A (en) 1957-03-01 1957-03-01 Air conditioning units

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US3012760A true US3012760A (en) 1961-12-12

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US643428A Expired - Lifetime US3012760A (en) 1957-03-01 1957-03-01 Air conditioning units

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GB (1) GB821805A (et)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183968A (en) * 1962-05-14 1965-05-18 Worthington Corp Induction circulators
US3194307A (en) * 1962-07-09 1965-07-13 Worthington Corp Induction circulator
US3237686A (en) * 1964-12-22 1966-03-01 Worthington Corp Induction circulators having rotating nozzles
US3411572A (en) * 1966-09-02 1968-11-19 Carrier Corp Nozzle constructions
US3422888A (en) * 1967-06-29 1969-01-21 Carrier Corp Air distribution terminal
US5157941A (en) * 1991-03-14 1992-10-27 Whirlpool Corporation Evaporator for home refrigerator
US5947195A (en) * 1996-06-24 1999-09-07 Sanden Corporation Multi-tube heat exchanger and air conditioner having the same
US20040123613A1 (en) * 2001-05-04 2004-07-01 Chiang Robert Hong Leung Medium temperature refrigerated merchandiser
US6769477B2 (en) * 2000-12-07 2004-08-03 Halton Oy Supply air terminal device
US20040168456A1 (en) * 2001-05-04 2004-09-02 Chiang Robert Hong Leung Evaporator for medium temperature refrigerated merchandiser
EP2138777A1 (de) * 2008-06-24 2009-12-30 LTG Aktiengesellschaft Zentrales, lutfttechnisches Gerät für die Klimatisierung eines Raumes
WO2010107378A1 (en) * 2009-03-20 2010-09-23 Inventiair Ab An air supply device
US20160052730A1 (en) * 2013-04-03 2016-02-25 Sanofi-Aventis Deutschland Gmbh Device and method for separating an item from a stack of items
CN109405066A (zh) * 2017-08-14 2019-03-01 大金工业株式会社 空调机室内机
US20190086104A1 (en) * 2013-02-20 2019-03-21 Air Distribution Technologies Ip, Llc Induction displacement unit
US20210131676A1 (en) * 2019-11-01 2021-05-06 Jetoptera, Inc. Fluidic turbo heater system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1604152B1 (de) * 1965-12-10 1971-07-29 Carrier Corp Induktionsgeraet fuer eine Klimaanlage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1291632A (en) * 1917-03-01 1919-01-14 Edward Lloyd Pease Heat-interchanging apparatus.
US2140305A (en) * 1936-06-05 1938-12-13 Carrier Corp Air conditioning apparatus
US2186804A (en) * 1937-11-04 1940-01-09 Walter R Allen Nozzle
US2492757A (en) * 1945-07-26 1949-12-27 Carrier Corp Air-conditioning system
US2567758A (en) * 1945-12-01 1951-09-11 Carrier Corp Air-conditioning method
US2607193A (en) * 1947-10-25 1952-08-19 Curtiss Wright Corp Annular combustion chamber with multiple notched fuel nozzles
CH315528A (de) * 1953-09-18 1956-08-31 Sulzer Ag Einrichtung zur Beeinflussung des klimatischen Zustandes in einem Raum
US2783979A (en) * 1955-03-02 1957-03-05 Borg Warner Induction unit for air conditioning
US2913227A (en) * 1956-02-06 1959-11-17 Trane Co Air conditioning unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1291632A (en) * 1917-03-01 1919-01-14 Edward Lloyd Pease Heat-interchanging apparatus.
US2140305A (en) * 1936-06-05 1938-12-13 Carrier Corp Air conditioning apparatus
US2186804A (en) * 1937-11-04 1940-01-09 Walter R Allen Nozzle
US2492757A (en) * 1945-07-26 1949-12-27 Carrier Corp Air-conditioning system
US2567758A (en) * 1945-12-01 1951-09-11 Carrier Corp Air-conditioning method
US2607193A (en) * 1947-10-25 1952-08-19 Curtiss Wright Corp Annular combustion chamber with multiple notched fuel nozzles
CH315528A (de) * 1953-09-18 1956-08-31 Sulzer Ag Einrichtung zur Beeinflussung des klimatischen Zustandes in einem Raum
US2783979A (en) * 1955-03-02 1957-03-05 Borg Warner Induction unit for air conditioning
US2913227A (en) * 1956-02-06 1959-11-17 Trane Co Air conditioning unit

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183968A (en) * 1962-05-14 1965-05-18 Worthington Corp Induction circulators
US3194307A (en) * 1962-07-09 1965-07-13 Worthington Corp Induction circulator
US3237686A (en) * 1964-12-22 1966-03-01 Worthington Corp Induction circulators having rotating nozzles
US3411572A (en) * 1966-09-02 1968-11-19 Carrier Corp Nozzle constructions
US3422888A (en) * 1967-06-29 1969-01-21 Carrier Corp Air distribution terminal
US5157941A (en) * 1991-03-14 1992-10-27 Whirlpool Corporation Evaporator for home refrigerator
US5947195A (en) * 1996-06-24 1999-09-07 Sanden Corporation Multi-tube heat exchanger and air conditioner having the same
US6769477B2 (en) * 2000-12-07 2004-08-03 Halton Oy Supply air terminal device
US6923013B2 (en) 2001-05-04 2005-08-02 Carrier Corporation Evaporator for medium temperature refrigerated merchandiser
US20040168456A1 (en) * 2001-05-04 2004-09-02 Chiang Robert Hong Leung Evaporator for medium temperature refrigerated merchandiser
US20040123613A1 (en) * 2001-05-04 2004-07-01 Chiang Robert Hong Leung Medium temperature refrigerated merchandiser
US8151587B2 (en) 2001-05-04 2012-04-10 Hill Phoenix, Inc. Medium temperature refrigerated merchandiser
EP2138777A1 (de) * 2008-06-24 2009-12-30 LTG Aktiengesellschaft Zentrales, lutfttechnisches Gerät für die Klimatisierung eines Raumes
WO2010107378A1 (en) * 2009-03-20 2010-09-23 Inventiair Ab An air supply device
US20190086104A1 (en) * 2013-02-20 2019-03-21 Air Distribution Technologies Ip, Llc Induction displacement unit
US11668475B2 (en) * 2013-02-20 2023-06-06 Air Distribution Technologies Ip, Llc Induction displacement unit
US20160052730A1 (en) * 2013-04-03 2016-02-25 Sanofi-Aventis Deutschland Gmbh Device and method for separating an item from a stack of items
US9878859B2 (en) * 2013-04-03 2018-01-30 Sanofi-Aventis Deutschland Gmbh Device and method for separating an item from a stack of items
CN109405066A (zh) * 2017-08-14 2019-03-01 大金工业株式会社 空调机室内机
US20210131676A1 (en) * 2019-11-01 2021-05-06 Jetoptera, Inc. Fluidic turbo heater system

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Publication number Publication date
FR1198799A (fr) 1959-12-09
BE565273A (et)
BE565238A (et)
GB821805A (en) 1959-10-14

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