US2124291A - Method of air conditioning - Google Patents
Method of air conditioning Download PDFInfo
- Publication number
- US2124291A US2124291A US14067A US1406735A US2124291A US 2124291 A US2124291 A US 2124291A US 14067 A US14067 A US 14067A US 1406735 A US1406735 A US 1406735A US 2124291 A US2124291 A US 2124291A
- Authority
- US
- United States
- Prior art keywords
- coils
- air
- coil
- casing
- conditioning
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0417—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
Definitions
- FIG. 1 is a perspective view illustrating diacoils extended different distances across a congrammatically a cooling coil arrangement in a d t o r.
- I conditioning casing in which a plurality of coils, In Fig. 3, the arrangement of coils radically 35 extending to different degrees crosswise of the p ts from t 0 Flgs- 1 d a d ut i e casing, are arranged in parallel arrangement with a plurality of coils arranged to form coil sections respect to new of conditionin m di m t a d of difierentthicknesses in difierent cross-sectionfrom the coils; a1 portions of the casing.
- the piping arrange- 40 Fig- 2 is a diagrammatic view in perspective ment, while in series, first traverses a series of 40 of a modified arrangement of the coil in Fig, 1, coils serving one stratum of an air stream, then in which the coils are in series with respect to traverses the Series Serving the adjacent um, flow of conditioning mediumxto and from the and 80 While 81X 60115 are wn, a y numcoils; and t ber, both lengthwise and crosswise may be .
- ar- 4 Fig. 3 is a diagrammatic View in perspective of ran ed. t a ry t t v nt n. In Fig. 3, t another modified coil arrangement.
- the three coils serving stratum are positioned crosswise of the casing.
- the coils 22 are each at a difierent temperature, and the may all be of the same or varying dimensions in two coils serving stratum 23 are at difi erent temdiameterv and character of radiating extended peratures with respect to the first three coils, and
- Coil 6 extends across the whole width also, with respect to each other and the coil I1 55 serving stratum 24 is at still a diflerent temperature. A maximum heat exchange between conditioning medium and air stream to achieve a dehumidified condition but at a relatively comfortable dry bulb temperature and relative humidity is thereby brought about.
- the expression lengthwise of the easing shall be understood to refer to distance through the casing measured parallel to air flow therethrough; the expression crosswise oi the casing shall be understood to relate to distances change relation with the'flrst portion of the air stream, the second portion of theair stream and a third portion of the air stream.
- a method of conditioning air which consists, first, in passing conditioning medium in heat exchange relation with a first portion of an air stream, then in heat exchange relation with a second portion of an air stream and the first portion of the air stream and then in heat exchange relation with the first portion of the air stream, the second portion of the air stream and a third portion of the air stream, the conditioning medium being passed in counter current heat exchange relation with the air stream.
- the method of controlling the moisture content and temperature oi. air which consists in directing a stream of air through a passageway, passing one portion of said air stream in indirect heat exchange relation with a relatively large volume of conditioning medium, passing another portion 01 said air stream in indirect heat exchange relation with a smaller volume-of conditioning medium which has been in heat exchange relation with said first-mentioned portion of the air stream, and passing a third portion of the air stream in indirect heat exchange relation with conditioning medium which has been in heat exchange relation with said first-mentioned and second-mentioned portions of said air stream.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Central Air Conditioning (AREA)
Description
July 19, 1938.
w. FLEISHER METHOD OF AIR CONDITIONING 2 Sheets-Sheet Filed April 1, 1935 v INVENTOR. H/ALTEQ L. FZE/sHEQ, By W @6776 ATTORNEY:
1 July 1 9, 1938.
w. L. FLEISHER METHOD OF AIR CONDITIONING Filed April 1, i955 ZSheetS-Sheet 2 INVENTOR.
MHz/2 L FLEISHEE/ ATTORNEY.
Patented Jul 19,1938 I 7 2,124,251
UNITED STATES PATIENT OFFICE -2,124,291 A METHOD or AIR- CONDITIONING Walter L. Fleislier, New York, N. Y. Application April 1, 1935, Serial No. 14,067
3 Claims. (01. 257-4) This application is a continuation, in part, of of the casing, whereas coil 5 extends two-thirds my copending application Serial No. 751,684, filed across the casing, and coil! extends only one- November 6, 1934, and which issued into Patent third across. The three coils are supplied with No. 2,105,882, Jan. 18, 1938. refrigerant or refrigerated medium from a suit- 5 The general object of the invention is to proable source through supply pipe 1, the medium 5 vide a heat exchanger coil arrangement for use in being returned to the refrigerating equipment an air conditioning system which will enable a through return linear As shown in Fig. 1, coils volume of air to be properly dehumidified under, 4, 5 and 6 are arranged in parallel withrespect summer conditions without producing a final dry to lines I and a. Hence, the coils are all supplied 10 bulb temperature and relative humidity too exwith medium at the same temperature. 10 treme for human comfort.v However, air in the stratum l9 indicated by the Another object is to provide'a heat exchanger arrows in Fig; 1, will pass through the three coils, arrangement which will enable all air employed whereas air in stratum 20 will pa s through tWO in an air conditioning system to pass through the coils, and air in the stratum 2| will only pass in i5 exchanger and emerge in a proper and predecontact with' coil 6. As a result, different air termined condition without the use of mechanical volumes will be conditioned to difierent degrees reh ater and form a final mixture at a median tempera- Another feature covers the use of a cooling coil ture and relative humidity, suitable for introducin a series arrangement in which difierent section into an area to be conditioned.
0 tions of the coil, crosswise of a casing, assume In Fig. 2, coils t, 5 and 6 are positioned in casdifferent temperatures, the same conditioning ing in in like manner as n Fig. 1, except that. medium flowing through all sections, they are arranged in series with respect to lines A further feature covers the use of a cooling 1 and 8. Thus, the medium in coil 5 will be at a coil in which different sections of the coil, both different temperature, Wa t a that of coil lengthwise and crosswise of a casing, assume 4, nder summer operating conditions; and the 25 different temperatures, the same conditioning edium in coil 6 will be still warmer. The air medium flowing through all sections. flows through the casing in the direction of the I These and other objects and features will be arrows and whereas the whole stream will contact more apparent from the following description of w 0011 37 two-thirds w t ct w th coils illustrative forms of applicant's exchanger ar- 5 and 6 and only One-third with all ee 0 1 8- 30 rangements, to be read in connection with the Applicant thus combines the counter-110W P accompanying diagrammatic drawings, in which: p e of heat exchange With his arrangement Fig. 1 is a perspective view illustrating diacoils extended different distances across a congrammatically a cooling coil arrangement in a d t o r. I conditioning casing in which a plurality of coils, In Fig. 3, the arrangement of coils radically 35 extending to different degrees crosswise of the p ts from t 0 Flgs- 1 d a d ut i e casing, are arranged in parallel arrangement with a plurality of coils arranged to form coil sections respect to new of conditionin m di m t a d of difierentthicknesses in difierent cross-sectionfrom the coils; a1 portions of the casing. The piping arrange- 40 Fig- 2 is a diagrammatic view in perspective ment, while in series, first traverses a series of 40 of a modified arrangement of the coil in Fig, 1, coils serving one stratum of an air stream, then in which the coils are in series with respect to traverses the Series Serving the adjacent um, flow of conditioning mediumxto and from the and 80 While 81X 60115 are wn, a y numcoils; and t ber, both lengthwise and crosswise may be .ar- 4 Fig. 3 is a diagrammatic View in perspective of ran ed. t a ry t t v nt n. In Fig. 3, t another modified coil arrangement. medium supplied through line I first flows Considering the drawings, similar numbers rethrough coils I2, i3 and M in series, counter to ferring to similar parts, numeral Ill designates a the flow of air through the casing, then flows casing through which air from any desired source through middle coils it andit, and finally,
or sources flows impelled therethrough by a fan, through coils ll before discharging into return 50 not shown. Cooling coils 4, 5 and 6, in Fig. 1, line 8. As a result, the three coils serving stratum are positioned crosswise of the casing. The coils 22 are each at a difierent temperature, and the may all be of the same or varying dimensions in two coils serving stratum 23 are at difi erent temdiameterv and character of radiating extended peratures with respect to the first three coils, and
surfaces. Coil 6 extends across the whole width also, with respect to each other and the coil I1 55 serving stratum 24 is at still a diflerent temperature. A maximum heat exchange between conditioning medium and air stream to achieve a dehumidified condition but at a relatively comfortable dry bulb temperature and relative humidity is thereby brought about.
'It is apparent thatthe arrangement of coils, lengthwise and crosswise of a casing, and in thickness, to different extent, and in combinations of series and parallel arrangements to suit varying requirements, is within the purview of this invention.
In the above description and in the accompan-ying claims, the expression lengthwise of the easing" shall be understood to refer to distance through the casing measured parallel to air flow therethrough; the expression crosswise oi the casing shall be understood to relate to distances change relation with the'flrst portion of the air stream, the second portion of theair stream and a third portion of the air stream.
2. A method of conditioning air which consists, first, in passing conditioning medium in heat exchange relation with a first portion of an air stream, then in heat exchange relation with a second portion of an air stream and the first portion of the air stream and then in heat exchange relation with the first portion of the air stream, the second portion of the air stream and a third portion of the air stream, the conditioning medium being passed in counter current heat exchange relation with the air stream.
3. The method of controlling the moisture content and temperature oi. air which consists in directing a stream of air through a passageway, passing one portion of said air stream in indirect heat exchange relation with a relatively large volume of conditioning medium, passing another portion 01 said air stream in indirect heat exchange relation with a smaller volume-of conditioning medium which has been in heat exchange relation with said first-mentioned portion of the air stream, and passing a third portion of the air stream in indirect heat exchange relation with conditioning medium which has been in heat exchange relation with said first-mentioned and second-mentioned portions of said air stream.
\ WALTER L. FLEISHER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14067A US2124291A (en) | 1935-04-01 | 1935-04-01 | Method of air conditioning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14067A US2124291A (en) | 1935-04-01 | 1935-04-01 | Method of air conditioning |
Publications (1)
Publication Number | Publication Date |
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US2124291A true US2124291A (en) | 1938-07-19 |
Family
ID=21763339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14067A Expired - Lifetime US2124291A (en) | 1935-04-01 | 1935-04-01 | Method of air conditioning |
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US (1) | US2124291A (en) |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2808494A (en) * | 1952-04-22 | 1957-10-01 | Telkes Maria | Apparatus for storing and releasing heat |
US2871116A (en) * | 1954-10-18 | 1959-01-27 | Louis F Clark | Recovering metal values from sulfur containing ores and solutions |
JPS52144006A (en) * | 1976-05-27 | 1977-12-01 | Osaka Gas Co Ltd | Vaporizer for liquefied natural gas |
US4191027A (en) * | 1976-07-29 | 1980-03-04 | Kabushiki Kaisah Maekawa Seisakusho | Apparatus for cooling brine |
US5086835A (en) * | 1989-04-24 | 1992-02-11 | Sanden Corporation | Heat exchanger |
US5131461A (en) * | 1991-03-26 | 1992-07-21 | Ronald Englert | Heating apparatus |
US5176200A (en) * | 1989-04-24 | 1993-01-05 | Sanden Corporation | Method of generating heat exchange |
US5205347A (en) * | 1992-03-31 | 1993-04-27 | Modine Manufacturing Co. | High efficiency evaporator |
US5529116A (en) * | 1989-08-23 | 1996-06-25 | Showa Aluminum Corporation | Duplex heat exchanger |
US5970728A (en) * | 1998-04-10 | 1999-10-26 | Hebert; Thomas H. | Multiple compressor heat pump or air conditioner |
US6070423A (en) * | 1998-10-08 | 2000-06-06 | Hebert; Thomas H. | Building exhaust and air conditioner condenstate (and/or other water source) evaporative refrigerant subcool/precool system and method therefor |
US6116048A (en) * | 1997-02-18 | 2000-09-12 | Hebert; Thomas H. | Dual evaporator for indoor units and method therefor |
US6237359B1 (en) | 1998-10-08 | 2001-05-29 | Thomas H. Hebert | Utilization of harvest and/or melt water from an ice machine for a refrigerant subcool/precool system and method therefor |
US6516486B1 (en) | 2002-01-25 | 2003-02-11 | Delphi Technologies, Inc. | Multi-tank evaporator for improved performance and reduced airside temperature spreads |
US6857285B2 (en) | 1998-10-08 | 2005-02-22 | Global Energy Group, Inc. | Building exhaust and air conditioner condensate (and/or other water source) evaporative refrigerant subcool/precool system and method therefor |
US20050161202A1 (en) * | 2004-01-22 | 2005-07-28 | Hussmann Corporation | Microchannel condenser assembly |
US20060130517A1 (en) * | 2004-12-22 | 2006-06-22 | Hussmann Corporation | Microchannnel evaporator assembly |
US20100276119A1 (en) * | 2007-12-21 | 2010-11-04 | Doty Scientific, Inc. | Compact, high-effectiveness, gas-to-gas compound recuperator with liquid intermediary |
US20120060523A1 (en) * | 2010-09-14 | 2012-03-15 | Lennox Industries Inc. | Evaporator coil staging and control for a multi-staged space conditioning system |
US20120318473A1 (en) * | 2011-06-17 | 2012-12-20 | Denso Corporation | Cooling device for vehicle |
US20130264027A1 (en) * | 2012-04-10 | 2013-10-10 | International Business Machines Corporation | Process for optimizing a heat exchanger configuration |
CN103884209A (en) * | 2014-03-10 | 2014-06-25 | 中国科学院过程工程研究所 | Split combined type flue heat exchanger |
US20140202669A1 (en) * | 2013-01-21 | 2014-07-24 | Denso International America, Inc. | Dual radiator engine cooling module - single coolant loop |
US20140374072A1 (en) * | 2011-12-30 | 2014-12-25 | Behr Gmbh & Co. Kg | Kit for a heat exchanger, a heat exchanger core, and heat exchanger |
US20160209130A1 (en) * | 2015-01-20 | 2016-07-21 | Samsung Electronics Co., Ltd. | Heat exchanger |
CN105953617A (en) * | 2016-05-04 | 2016-09-21 | 浙江银轮机械股份有限公司 | Core for engine tail gas evaporation superheater |
US11384987B2 (en) * | 2019-08-16 | 2022-07-12 | Lennox Industries Inc. | Cooling system |
-
1935
- 1935-04-01 US US14067A patent/US2124291A/en not_active Expired - Lifetime
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2808494A (en) * | 1952-04-22 | 1957-10-01 | Telkes Maria | Apparatus for storing and releasing heat |
US2871116A (en) * | 1954-10-18 | 1959-01-27 | Louis F Clark | Recovering metal values from sulfur containing ores and solutions |
JPS52144006A (en) * | 1976-05-27 | 1977-12-01 | Osaka Gas Co Ltd | Vaporizer for liquefied natural gas |
JPS568237B2 (en) * | 1976-05-27 | 1981-02-23 | ||
US4191027A (en) * | 1976-07-29 | 1980-03-04 | Kabushiki Kaisah Maekawa Seisakusho | Apparatus for cooling brine |
US5176200A (en) * | 1989-04-24 | 1993-01-05 | Sanden Corporation | Method of generating heat exchange |
US5086835A (en) * | 1989-04-24 | 1992-02-11 | Sanden Corporation | Heat exchanger |
US6021846A (en) * | 1989-08-23 | 2000-02-08 | Showa Aluminum Corporation | Duplex heat exchanger |
US5529116A (en) * | 1989-08-23 | 1996-06-25 | Showa Aluminum Corporation | Duplex heat exchanger |
US5743328A (en) * | 1989-08-23 | 1998-04-28 | Showa Aluminum Corporation | Duplex heat exchanger |
US5131461A (en) * | 1991-03-26 | 1992-07-21 | Ronald Englert | Heating apparatus |
US5205347A (en) * | 1992-03-31 | 1993-04-27 | Modine Manufacturing Co. | High efficiency evaporator |
US6116048A (en) * | 1997-02-18 | 2000-09-12 | Hebert; Thomas H. | Dual evaporator for indoor units and method therefor |
US5970728A (en) * | 1998-04-10 | 1999-10-26 | Hebert; Thomas H. | Multiple compressor heat pump or air conditioner |
US6857285B2 (en) | 1998-10-08 | 2005-02-22 | Global Energy Group, Inc. | Building exhaust and air conditioner condensate (and/or other water source) evaporative refrigerant subcool/precool system and method therefor |
US6070423A (en) * | 1998-10-08 | 2000-06-06 | Hebert; Thomas H. | Building exhaust and air conditioner condenstate (and/or other water source) evaporative refrigerant subcool/precool system and method therefor |
US6237359B1 (en) | 1998-10-08 | 2001-05-29 | Thomas H. Hebert | Utilization of harvest and/or melt water from an ice machine for a refrigerant subcool/precool system and method therefor |
US6516486B1 (en) | 2002-01-25 | 2003-02-11 | Delphi Technologies, Inc. | Multi-tank evaporator for improved performance and reduced airside temperature spreads |
US6988538B2 (en) | 2004-01-22 | 2006-01-24 | Hussmann Corporation | Microchannel condenser assembly |
US20050161202A1 (en) * | 2004-01-22 | 2005-07-28 | Hussmann Corporation | Microchannel condenser assembly |
US20060130517A1 (en) * | 2004-12-22 | 2006-06-22 | Hussmann Corporation | Microchannnel evaporator assembly |
US20100276119A1 (en) * | 2007-12-21 | 2010-11-04 | Doty Scientific, Inc. | Compact, high-effectiveness, gas-to-gas compound recuperator with liquid intermediary |
US20120060523A1 (en) * | 2010-09-14 | 2012-03-15 | Lennox Industries Inc. | Evaporator coil staging and control for a multi-staged space conditioning system |
US20120318473A1 (en) * | 2011-06-17 | 2012-12-20 | Denso Corporation | Cooling device for vehicle |
US20140374072A1 (en) * | 2011-12-30 | 2014-12-25 | Behr Gmbh & Co. Kg | Kit for a heat exchanger, a heat exchanger core, and heat exchanger |
US9354001B2 (en) | 2012-04-10 | 2016-05-31 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Process for optimizing a heat exchanger configuration |
US20130264027A1 (en) * | 2012-04-10 | 2013-10-10 | International Business Machines Corporation | Process for optimizing a heat exchanger configuration |
US9631880B2 (en) * | 2012-04-10 | 2017-04-25 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Process for optimizing a heat exchanger configuration |
US20140202669A1 (en) * | 2013-01-21 | 2014-07-24 | Denso International America, Inc. | Dual radiator engine cooling module - single coolant loop |
CN103884209A (en) * | 2014-03-10 | 2014-06-25 | 中国科学院过程工程研究所 | Split combined type flue heat exchanger |
US20160209130A1 (en) * | 2015-01-20 | 2016-07-21 | Samsung Electronics Co., Ltd. | Heat exchanger |
CN105953617A (en) * | 2016-05-04 | 2016-09-21 | 浙江银轮机械股份有限公司 | Core for engine tail gas evaporation superheater |
CN105953617B (en) * | 2016-05-04 | 2018-05-15 | 浙江银轮机械股份有限公司 | A kind of fuse for motor exhaust vaporizer-superheater |
US11384987B2 (en) * | 2019-08-16 | 2022-07-12 | Lennox Industries Inc. | Cooling system |
US11885570B2 (en) | 2019-08-16 | 2024-01-30 | Lennox Industries Inc. | Cooling system |
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