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US 4,344,411 AGranted
Heat exchanger for space heaters
OwnerHoward K. Dearborninventor
Life of this patent
Estimating the term…
Abstract
A heat exchanger for use with a space heater having a combustion chamber wherein solid fuel, such as wood or coal, is supported for combustion. The heat exchanger comprises a metal plate having a plurality of spaced apart holes drilled therein extending perpendicular to the plate thickness and manifolds are attached to the plate in communication with the holes for circulating water therethrough. The plate is mounted on the space heater for heating the water circulated through the holes.
Claims16
A heat exchanger for fuel burning heating stoves comprising:
- a plate having substantially parallel opposite faces and an outer periphery, a plurality of individual spaced-apart substantially parallel elongated holes entering said plate at said outer periphery and extending between said opposite faces substantially parallel thereto, said holes being spaced-apart in a direction extending substantially parallel to said faces, said holes being of substantially the same diameter and being spaced-apart substantially equidistantly, said plate having a thickness not greater than two times the diameter of one said hole, said holes being spaced from one another such that the plate material between adjacent holes has a width at least as great as the diameter of one said hole and not greater than approximately two times the diameter of one said hole, inlet and outlet openings for said holes, manifold means attached to said plate for circulation of liquid through said holes between said inlet and outlet openings, said plate being mountable to structure defining at least part of a solid fuel burning space heater in heat exchange relationship with the heat produced by combustion of such fuel therein for heating liquid circulating through said holes between said inlet and outlet openings, and said plate having reduced areas at each end relative to said manifold means whereby upon installation combustion products may circulate about said reduced areas.
A heat exchanger for fuel burning heating stoves and the like comprising:
- a metal plate having substantially parallel opposite faces, front and rear ends defining a first pair of opposite peripheral portions, and opposite sides defining a second pair of opposite peripheral portions, a plurality of individual spaced-apart elongated holes extending across said plate between one said pair of opposite peripheral portions intermediate said opposite faces, said holes being spaced-apart along said plate between the other said pair of opposite peripheral portions, said holes being of substantially the same diameter and being spaced-apart substantially equidistantly, said plate having a thickness not greater than two times the diameter of one said hole, said holes being spaced from one another such that the plate material between adjacent holes has a width at least as great as the diameter of one said hole and not greater than approximately two times the diameter of one said hole, said plate having inlet and outlet openings communicating with said holes, manifold means attached to said plate for circulation of liquid through said holes between said inlet and outlet openings, and said plate being mountable to structure defining at least part of a solid fuel burning heating stove in heat transfer relationship with the heat produced by combustion of such fuel therein for heating liquid circulated through said holes, and said plate having reduced areas at each end relative to said manifold means whereby upon installation combustion products may circulate about said reduced areas.
Dependencies are inferred from the claim text.