US3668889A - Gas-operated refrigerator having sealed combustion system - Google Patents

Gas-operated refrigerator having sealed combustion system Download PDF

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Publication number
US3668889A
US3668889A US65131A US3668889DA US3668889A US 3668889 A US3668889 A US 3668889A US 65131 A US65131 A US 65131A US 3668889D A US3668889D A US 3668889DA US 3668889 A US3668889 A US 3668889A
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United States
Prior art keywords
flue
conduit
burner
side wall
conduit means
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Expired - Lifetime
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US65131A
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English (en)
Inventor
Olov Tage Magnusson
Karl Gosta Lennart Kenneryd
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Electrolux AB
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Electrolux AB
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/04—Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/10—Arrangements for mounting in particular locations, e.g. for built-in type, for corner type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • 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
    • F25B2333/00—Details of boilers; Analysers; Rectifiers
    • F25B2333/003—Details of boilers; Analysers; Rectifiers the generator or boiler is heated by combustion gas
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/027—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures of the sorption cycle type
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00261—Details for cooling refrigerating machinery characterised by the incoming air flow through the back bottom side
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00262—Details for cooling refrigerating machinery characterised by the incoming air flow through the back top side
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
    • F25D2323/00272—Details for cooling refrigerating machinery characterised by the out-flowing air from the back top
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • ABSTRACT A heat-operated refrigerator heated by a gas burner and a heating flue associated therewith is disposed in a space having an apertured exterior side wall.
  • the heating flue and burner form pans of a sealed combustion system which includes a first conduit for supplying all of the combustion supporting air to the burner to form a combustible gas mixture with gas supplied thereto and a second conduit for withdrawing all of the flue gases from the upper end of the flue.
  • the ends of the first and second conduits removed from the burner and flue, respectively, are open and terminate in the apertured side wall, the open end of the first conduit serving as an inlet for ambient air and the open end of the second conduit serving as an outlet for flue gases.
  • the flue gas outlet is disposed above the air inlet.
  • the air inlet and flue gas outlet have the same cross-sectional areas and are flush with the outer surface of the exterior wall.
  • This invention relates to gas-operated refrigerators for enclosed spaces, such as a permanent residential structure, for example, mobile homes like trailers and campers, and boats in which a gas burner and heating flue coacting therewith form parts of a sealed combustion system having a first conduit for supplying ambient air to the burner, such ambient air constituting all of the air supplied to the burner to form a combustible gas mixture with a combustible gas supplied thereto, and having a second conduit for conducting all of the flue gases from the flue outside the space.
  • the outer end of the ambient air conduit and flue gas conduit extend through the apertured exterior side wall and project from the outer face of such wall and vertical screens are arranged in different ways to prevent strong winds perpendicular to the exterior wall from entering the open ends of the air conduit and flue gas conduit.
  • Such screens also have been provided with openings in the top and bottom parts thereof to prevent gusts of wind parallel to the exterior side wall from producing pressure changes at the outer ends of the air and flue gas conduits which is objectionable.
  • the screens projecting from the exterior side wall are unsightly which also is objectionable.
  • FIG. 1 is a diagrammatic representation in elevation of a gas-operated refrigerator and conduit connections therefor through which combustion supporting air is supplied to the gas burner and heated products of combustion are withdrawn from a flue coacting with the gas burner;
  • FIG. 2 is a vertical sectional view of parts shown in FIG. 3 which are like the conduit connections shown in FIG. 1;
  • FIG. 3 is a perspective view of the parts of the conduit connections shown in FIG. 2;
  • FIG. 4 is a diagrammatic representation like that shown in FIG. 1 illustrating another embodiment of the invention.
  • FIG. 5 is an enlarged fragmentary view of the conduit connections shown in FIG. 4 to illustrate details more clearly;
  • FIG. 6 is a fragmentary elevational view taken at line 6-6 of FIG. 5.
  • FIGS. 1 to 3 we have shown our invention in connection with a gas'operated refrigerator 10 which is supported on a floor 1 l of an enclosure or space 12 having an exterior side wall 14.
  • the floor I1 and side wall 14 may form parts of a permanent building, such as a residential structure, for example, a mobile home like a trailer or camper, or a boat.
  • the refrigerator 10 which has a front access opening closed by a door 15, is adapted to be operated by gas-operated refrigeration apparatus which may be an absorption refrigeration system of a uniform pressure type and like that described in US. Pat. No. 3,512,371 to Sven A. Gurt and Karl H. Lindstrom, granted May 19, 1970.
  • the refrigeration system comprises a plurality of parts which are interconnected in a wellknown manner and include a cooling unit (not shown) arranged to effect cooling of the interior of the refrigerator and a heat receiving part 16 having a heating flue 17 associated therewith.
  • the heat receiving part 16, which is located at the rear of the refrigerator 10, is enclosed in an upright shell 16a through which the flue 17 extends.
  • a gas burner which is diagrammatically shown at 18in FIG. 1 and is disposed within a hood 19, is positioned at the bottom of the heat receiving part 16 and projects its flame into the lower end of the flue l7.
  • Combustible gas is delivered to the burner 18 through a conduit '29 from a suitable source of supply.
  • Combustion supporting air is supplied to the burner 18 through a conduit 21 having its inner end connected to the hood l9 and its outer end terminating in an inlet 22 at an opening 23 in the exterior side wall 14.
  • the heated gases flowing in the flue 17 effect heating of the heat receiving part 16 whereby the refrigeration system will function to promote cooling of the interior of the refrigerator.
  • All of the heated products of combustion which may be referred to as flue gases, are discharged from the upper end of flue l7 and conducted exteriorly of the space 12 through a conduit 24.
  • the inner end of the conduit 24 is connected to the upper end of the flue 17 and the outer end thereof terminates at an outlet 25 at the opening 23 in the exterior side wall 14.
  • the conduit 24 for the flue gases also forms a part of the sealed combustion system.
  • the air inlet 22 and outlet 25 for flue gases are immediately adjacent to one another and in abutting relation.
  • the conduit 21 is of inverted U-shape having a closed end or section 21a and depending vertical legs or sections 21b and 210, the leg 21b terminating in the air inlet 22 and the leg 21c communicating with the burner hood 19.
  • the conduit 24 also is of inverted U-shape having a closed end or section 240 and depending vertical legs 24b and 24c, the leg 24b terminating in the outlet 25 for the flue gases and the leg 24c communicating with the upper end of the flue 17.
  • the cross-sectional areas of the inlet 22 and outlet 23 and the conduit sections 21b and 24b connected thereto are greater than the cross-sectional areas of the conduit sections 21a, 21c and 24a, 240.
  • the air inlet 22 and outlet 25 for flue gases are rectangular with their major axes extending horizontally.
  • a rectangularshaped casing 26 having suitable partitioning can be employed to provide the air inlet 22 and flue gas outlet 25 and vertical conduit sections 21b and 24b communicating therewith, as shown in FIG. 3.
  • the casing 26 fits snugly in the opening 23 in the exterior side wall 14 with the outer wall 26a of the casing flush with the outer surface or face of the side wall 14.
  • Partitioning 27 of zig-zag shape is provided within the casing 26 which includes a vertical portion 27a between the front and rear walls thereof and horizontal portions 27b and 27c projecting in opposite directions from the vertical portion at its top and bottom edges, respectively.
  • the portion 270 bisects a cut-out section at the bottom of the front wall 26a to form the air inlet 22 and flue gas outlet 25.
  • Conduit sections 22a and 24a are connected to the rear wall of the casing 26 at regions above and below the horizontal partition portion 27b. It will now be understood that the partitioning 27 in the casing 26 provides two vertical passageways therein which serve as the conduit sections 21b and 24b schematically shown in FIGS. 1 and 2.
  • a protective grate (not shown) can be mounted on the casing 26 over the air inlet 22 and flue gas outlet 25 to prevent insects and the like from entering the conduits 21 and 24.
  • a slotted cover over the air inlet 22 and flue gas outlet 25 is not desirable because the burner flame may be extinguished when certain wind conditions prevail at the exterior side wall 14.
  • An important feature of the embodiment being described is that the air inlet 22 and flue gas outlet 25 have substantially the same cross-sectional areas and are flush with outer surface of the exterior side wall 14.
  • the air inlet 22 and flue gas outlet 25 must be operatively associated with separate passageways or conduit sections 21b and 24b of substantially the same size or cross-sectional area. From the conduit sections 21b and 24b the other conduit sections 21a, 21c and 240, 240 connected to the hood l9 and flue 17, respectively, desirably are of smaller size or cross-sectional area.
  • FIGS. 4, and 6 We have illustrated another embodiment of our invention in FIGS. 4, and 6 in which parts similar to those shown in FIGS. 1, 2 and 3 are referred to by the same reference numerals.
  • a conduit 121 extending from the exterior side wall 1 14 to the rear of the refrigerator has an inlet 122 for combustion supporting air at its outer end andis connected to the hood 19 of the burner 18 at its inner end.
  • a conduit 124 extending from the exterior side wall 114 to the rear of the refrigerator 10 has an outlet 125 for flue gases at its outer end and is connected to the upper end of the flue 17 at its inner end.
  • a rectangular-shaped casing 126 which snugly fits in the opening 123 in the side wall 114, includes a horizontal partition 28 which divides the easing into top and bottom compartments or spaces 124b and 121b, respectively.
  • the front wall of the casing 126 is formed with cut-away sections which provide the air inlet 122 and flue gas outlet 125 which are flush with the outer surface of the exterior side wall 1 14.
  • the conduit 121 for combustion supporting air includes a horizontal section 121a which is connected to the rear wall of the casing 126 at an opening therein which is below the partition 28. Hence, the forward end of the conduit section 121a is in communication with the upper part of the vertical passageway in the bottom compartment of the casing 126 which serves as the conduit section 121b.
  • the rear end of the conduit section 121a is connected to the vertical conduit section 12lc which depends downward therefrom and is connected to the hood 19.
  • the conduit 124 for flue gases includes a horizontal section 1240 which is connected to the rear wall of the casing 126 at an opening therein adjacent to the top of the casing. Hence, the forward end of the duct section 124a is in communication with the upper part of the vertical passageway in the top compartment of the casing 126 which serves as the conduit section 124b. The rear end of the conduit section 124a is connected to the vertical conduit section 124C which depends downward therefrom and is connected to the upper end of the flue 17. Suitable protective gratings (not shown) may also be provided in the casing 126 at the regions of the air inlet 122 and flue gas outlet 125.
  • the air inlet 123 and flue gas outlet are rectangular with their major axes extending horizontally and their cross-sectional areas are greater than the cross-sectional areas of the conduit sections 121a and 1240 connected to the rear wall of the casing 126.
  • the air inlet 122 is at the bottom of the bottom compartment of the casing 126 while the conduit section 122a projects rearward from the top part of the bottom compartment of the casing.
  • the flue gas outlet 125 is at the bottom of the top compartment of the casing 126 while the conduit section 124a projects rearward from the top part of the top compartment of the casing.
  • the air inlet 22 and flue gas outlet 25 are in abutting relation and separated only by the horizontal portion 270 of the partition 27.
  • the air inlet 122 and flue gas outlet 125 have the same cross-sectional areas and the same height a and are separated by the vertical distance d.
  • the distance d desirably is in a range which is from 5 cm. to 15 cm.
  • the vertical distance between the air inlet 22, 122 and flue gas outlet 25, 125 can be in a range of from 0 to 15 cm.
  • thermoelectric apparatus disposed in said space, said refrigeration apparatus comprising a heat receiving part having a heating flue, a gas burner coacting with said flue, means for supplying combustible gas to said burner, first conduit means for conducting combustion supporting air to said burner, second conduit means for conducting flue gases from the upper end of said flue, said first and second conduit means and burner and flue being constructed and formed to provide a sealed combustion system in which all of the combustion supporting air is supplied to said burner through said first conduit means and all of the flue gases are withdrawn from said flue through said second conduit means, said exterior side wall being apertured, the end of said first conduit means removed from said burner being open and terminating in said apertured side wall and serving as an inlet for ambient air, the end of second conduit means removed from said flue being open and temtinating in said apertured side wall and serving as an outlet for flue gases, said flue gas outlet being disposed above said air inlet, and said air inlet and flue
  • Apparatus as set forth in claim 1 which includes means defining two vertically extending spaces separated by partitioning, one of said spaces serving as the vertically disposed section of said first conduit and the other of said spaces serving as the vertically disposed section of said second conduit.
  • Apparatus as set forth in claim 1 which comprises a rectangular-shaped casing at the apertured side wall, said casing having partitioning defining said vertically extending sections of said first and second conduits, a wall of said casing flush with the outer surface of said exterior side wall being apertured to provide said air inlet and flue gas outlet at opposing sides of said partitioning.
  • said partitioning comprises a zig-zag member having a vertical portion and horizontal portions projecting in opposite directions from said vertical portion at the top and bottom thereof, the air inlet and flue gas outlet being in abutting relation below and above said bottom horizontal portion at said apertured side wall of said casing.
  • said refrigeration apparatus comprising a heat receiving part having a heating flue, a gas burner coacting with said flue, means for supplying combustible gas to said burner, first conduit means for conducting combustion supporting air to said burner, second conduit means for conducting flue gases from the upper end of said flue, said first and second conduit means and burner and flue being constructed and formed to provide a sealed combustion system in which all of the combustion supporting air is supplied to said burner through said first conduit means and all of the flue gases are withdrawn from said flue through said second conduit means, said exterior side wall being apertured, the end of said first conduit means removed from said burner being open and terminating in said apertured side wall and serving as an inlet for ambient air, the end of said second conduit means removed from said flue being open and terminating in said apertured side wall and serving as an outlet for flue gases, said flue gas outlet being disposed above said air inlet, and said air inlet and flue gas outlet having substantially the same cross-sectional areas and being substantially flush with

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Gas Burners (AREA)
  • Air Supply (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
US65131A 1969-09-12 1970-08-19 Gas-operated refrigerator having sealed combustion system Expired - Lifetime US3668889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1256669 1969-09-12

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US3668889A true US3668889A (en) 1972-06-13

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US65131A Expired - Lifetime US3668889A (en) 1969-09-12 1970-08-19 Gas-operated refrigerator having sealed combustion system

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US (1) US3668889A (fr)
DE (1) DE2044756C3 (fr)
FR (1) FR2060586A5 (fr)
GB (1) GB1318308A (fr)
YU (1) YU33218B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771320A (en) * 1971-04-26 1973-11-13 Electrolux Ab Refrigerator operated by a fluid fuel burner for a movable structure
US4111004A (en) * 1974-11-01 1978-09-05 Aktiebolaget Electrolux Gas operated refrigerator having a sealed combustion system with separated fresh air and combustion gas conduits
US5309891A (en) * 1992-01-17 1994-05-10 Cheminees Securite Ltee Direct evacuation gas heater or fireplace and safety release valve for said heaters
US5782105A (en) * 1996-02-14 1998-07-21 Electrolux Siegen Gmbh Kitchen appliance for installation in camping vehicles in particular
US5946929A (en) * 1997-07-02 1999-09-07 Norcold, Inc. RV refrigerator with combustion seal and heat deflector
US20020197948A1 (en) * 2001-05-31 2002-12-26 Serge Goncalves Exterior inlet/exhaust port
US20060201667A1 (en) * 2005-03-08 2006-09-14 William Swallow Heat dissipater and method of dissipating heat
US20090255651A1 (en) * 2009-04-14 2009-10-15 William Swallow Heat Dissipater and Method of Dissipating Heat
US20140373568A1 (en) * 2013-06-25 2014-12-25 Unique Gas Products Ltd. Direct venting system for free-standing propane powered absorption refrigerator
US20150108128A1 (en) * 2013-10-17 2015-04-23 Korea Atomic Energy Research Institute Combustion controller for combustible gas

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE429999B (sv) * 1979-02-02 1983-10-10 Electrolux Ab Anordning vid en med brennardrivet absorptionskylskap forsedd husvagn
DE3025441C2 (de) * 1980-07-04 1983-05-11 Philipp Kreis GmbH & Co Truma-Gerätebau, 8000 München Außenwandkasten für den Verbrennungsluft- und Abgaskanal eines mit einem Brennersystem arbeitenden Gerätes
DE3348051C2 (en) * 1983-09-07 1987-05-27 Philipp Kreis Gmbh & Co Truma-Geraetebau, 8000 Muenchen, De Outer-wall box for the combustion-air and waste-gas duct of an apparatus operating with a burner system
DE3332298C2 (de) * 1983-09-07 1987-02-26 Philipp Kreis GmbH & Co Truma-Gerätebau, 8000 München Außenwandkasten für den Verbrennungsluft- und Abgaskanal eines mit einem Brennersystem arbeitenden Gerätes
GB8327307D0 (en) * 1983-10-12 1983-11-16 Admiral Dev Co Ltd Heaters
DE3612328A1 (de) * 1986-04-11 1987-10-15 Manfred Speitelsbach Gasheizofen
DE102009026268A1 (de) 2009-07-29 2011-02-03 Webasto Ag Mobiles Heizgerät mit einem Strömungsleitelement

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US1736871A (en) * 1926-05-22 1929-11-26 Electrolux Servel Corp Refrigeration
GB819148A (en) * 1956-12-14 1959-08-26 Radiation Ltd Ventilating means for gas heated apparatus
CH348529A (de) * 1955-12-05 1960-08-31 Junkers & Co Anschlusskasten für gasbeheizte Geräte
GB930248A (en) * 1961-05-03 1963-07-03 Gas Council Balanced flue terminals for combustion appliances
US3527260A (en) * 1968-08-19 1970-09-08 Instamatic Corp Hot water heater
US3530848A (en) * 1968-08-14 1970-09-29 Temco Inc Vent and inlet for gas heater

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Publication number Priority date Publication date Assignee Title
DE551802C (de) * 1931-01-03 1932-06-06 Johannes Rutten Dipl Ing Gasheizvorrichtung
DE1726497U (de) * 1956-04-30 1956-07-19 Seppelfricke Geb Gmbh Gasheizofen.
US2919690A (en) * 1956-07-05 1960-01-05 Horn Henri Ets Heating apparatus of the closed type
DE6753597U (de) * 1968-02-07 1969-05-22 Coleman Co Oelheizgeraet mit einem z.b. brennertopf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736871A (en) * 1926-05-22 1929-11-26 Electrolux Servel Corp Refrigeration
CH348529A (de) * 1955-12-05 1960-08-31 Junkers & Co Anschlusskasten für gasbeheizte Geräte
GB819148A (en) * 1956-12-14 1959-08-26 Radiation Ltd Ventilating means for gas heated apparatus
GB930248A (en) * 1961-05-03 1963-07-03 Gas Council Balanced flue terminals for combustion appliances
US3530848A (en) * 1968-08-14 1970-09-29 Temco Inc Vent and inlet for gas heater
US3527260A (en) * 1968-08-19 1970-09-08 Instamatic Corp Hot water heater

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771320A (en) * 1971-04-26 1973-11-13 Electrolux Ab Refrigerator operated by a fluid fuel burner for a movable structure
US4111004A (en) * 1974-11-01 1978-09-05 Aktiebolaget Electrolux Gas operated refrigerator having a sealed combustion system with separated fresh air and combustion gas conduits
US5309891A (en) * 1992-01-17 1994-05-10 Cheminees Securite Ltee Direct evacuation gas heater or fireplace and safety release valve for said heaters
AU655697B2 (en) * 1992-01-17 1995-01-05 Cheminees Securite Ltee Direct evacuation gas heater or fireplace and safety release valve for said heaters
US5782105A (en) * 1996-02-14 1998-07-21 Electrolux Siegen Gmbh Kitchen appliance for installation in camping vehicles in particular
US5946929A (en) * 1997-07-02 1999-09-07 Norcold, Inc. RV refrigerator with combustion seal and heat deflector
US20020197948A1 (en) * 2001-05-31 2002-12-26 Serge Goncalves Exterior inlet/exhaust port
US6776704B2 (en) * 2001-05-31 2004-08-17 Venmar Ventilation Inc. Exterior inlet/exhaust port
US20060201667A1 (en) * 2005-03-08 2006-09-14 William Swallow Heat dissipater and method of dissipating heat
US20090255651A1 (en) * 2009-04-14 2009-10-15 William Swallow Heat Dissipater and Method of Dissipating Heat
US20140373568A1 (en) * 2013-06-25 2014-12-25 Unique Gas Products Ltd. Direct venting system for free-standing propane powered absorption refrigerator
US20150108128A1 (en) * 2013-10-17 2015-04-23 Korea Atomic Energy Research Institute Combustion controller for combustible gas
US10468146B2 (en) * 2013-10-17 2019-11-05 Korea Atomic Energy Research Institute Combustion controller for combustible gas

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Publication number Publication date
DE2044756A1 (de) 1972-02-10
YU198370A (en) 1975-12-31
GB1318308A (en) 1973-05-31
DE2044756B2 (de) 1979-07-26
DE2044756C3 (de) 1981-12-10
YU33218B (en) 1976-06-30
FR2060586A5 (fr) 1971-06-18

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