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US 5,097,897 AGranted
Heat exchanging device
AssigneeSanyo Electric Co., Ltd.
InventorsMasataka Watanabe, Toshimi Hosokawa
Life of this patent
Estimating the term…
Abstract
A heat exchanging device includes two heat exchangers, each of the heat exchangers including a metal plate and a pipe attached to the plate for conducting a heat exchanging medium, the plate with the pipe being bent into a winding, and the heat exchangers being arranged with respective axes of winding aligned with each other and with any opposite faces of the heat exchangers positioned with a specified distance not to come in contact with each other.
Claims8
A heat exchanging device comprising a plurality of heat exchangers,
- each of said heat exchangers including a single metal plate or two metal plates and a fluid passage way on the plate or between the plates for conducting a heat exchanging medium,
- each said plate or plates with said fluid passage way being bent about a central axis into a spiral coil,
- said fluid passage way having an inlet and an outlet at one peripheral end of the plate, and
- said heat exchangers being assembled into a unit with respective axis of spiral aligned with each other and with the turns of said spiral coil being equally spaced from adjacent turns.
1 more element
A heat exchanging device comprising a single heat exchanger,
- said heat exchanger including a single metal plate or two metal plates and two or more discrete fluid channels independently positioned on the plate or between the plates for conducting a heat exchanging medium, each of said discrete fluid channels having an inlet and an outlet
- said channels being formed into a serpentine curve having sections parallel to each other,
- said plate or plates with said channels being bent into a spiral coil with the turns of said spiral coil being equally spaced from adjacent turns.
Dependencies are inferred from the claim text.