Water jacket assembly
AssigneeRheem Australia Pty Limited
InventorsDavid William Manley, Krzysztof Mastalerz
Life of this patent
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Abstract
A water jacket assembly for an instantaneous gas fired water heater, the assembly including pressed profiled plates made of copper or copper coated steel, one plate being the inverted image of the other, said plates being placed together in pairs, the pairs of plates being arranged in a parallel array to form a heat exchanger, the heat exchanger being bordered by a water jacket comprising overlapping side and end panels of copper or copper coated steel attached to the array of plates, the assembly being fused together to define a combustion chamber with discrete combusted gases and water passages within said assembly.
Claims39
A water jacket assembly for an instantaneous gas fired water heater, the assembly including pressed profiled plates made of copper or copper coated steel, one plate being the inverted image of the other, said plates being placed together in pairs, the pairs of plates being arranged in a parallel array to form a heat exchanger, the heat exchanger being bordered by a water jacket comprising overlapping side and end panels of copper or copper coated steel attached to the array of plates, the assembly being fused together to define a combustion chamber with discrete combusted gases and water passages within said assembly.
A method of manufacturing a water jacket assembly comprising pressing profiled heat exchanger plates, side panels and end panels out of copper or copper coated steel, placing two plates together, one being the inverted image of the other to form a pair of abutting plates, placing a plurality of pairs of heat exchanger plates together to form a sandwich, attaching the side panels to the sandwich and placing the end plates on each corner so that the side and end panels overlap, holding the assembly with a jig, and placing the assembly in an oven for a predetermined time to fuse the copper surfaces together to provide an integral assembly having a combustion chamber and discrete combusted gases and water passageways within said assembly.
A heating system for heating water with combustion products comprising:
- a heat exchanger assembly including
- at least two heat exchange elements each having two plates providing at least one heat exchanger liquid passageway therebetween,
- a combustion products passageway being formed between adjacent heat exchange elements, and
- a jacket extending from said heat exchanger assembly, said jacket including plates formed to provide at least one jacket liquid passageway, said jacket defining a combustion chamber adjacent said heat exchanger assembly, and
- wherein said heat exchanger elements and said jacket are connected so as to allow liquid to pass therethrough.
A heating system for heating water with combustion products comprising:
- a heat exchanger assembly having a plurality of first and second plates held together to form at least one liquid passageway therebetween, each pair of first and second plates when held together forming a heat exchange element, and adjacent heat exchange elements form a combustion products flow path therebetween, and
- wherein said heat exchanger assembly having said at least one liquid passageway in each heat exchange element extending across a portion of each heat exchange element in one direction and across said portion in the opposite direction in a serpentine pattern.
A heating system for heating water with combustion products comprising:
- a plurality of first and second plates held together to form at least one liquid passageway therebetween, each pair of first and second plates form a heat exchange element, and
- adjacent heat exchange elements form a combustion products flow path therebetween,
- each of said plates having a series of discrete dimples therein, whereby adjacent dimples on one plate are connected by the series of adjacent dimples on the other plate to form the at least one liquid passageway, wherein said dimples cause turbulent flow of liquid through the at least one liquid passageway, and
- outside surfaces of said dimples cause turbulent flow of combustion products past the exterior of said heat exchange elements through at least one combustion products flow path.
A heat exchanger assembly comprising:
- at least two heat exchange elements each having two plates providing at least one heat exchanger liquid passageway therebetween formed through a series of concave regions formed in adjacent plates, the at least one heat exchanger liquid passageway travels across the heat exchange elements before traveling across the heat exchange element in an opposite direction to form a serpentine pattern, and
- a combustion products passageway being formed between adjacent heat exchange elements.
Dependencies are inferred from the claim text.