Heat exchange – Three non-communicating fluids – Concentric flow chambers
Patent
1981-07-27
1982-09-28
Richter, Sheldon J.
Heat exchange
Three non-communicating fluids
Concentric flow chambers
165156, 165169, 165184, F28F 142
Patent
active
043513891
ABSTRACT:
A heat exchanger apparatus has a center pipe and an outer pipe formed with spiralling grooves attached to the outside of the center pipe. The outer pipe grooves are pressed against the center pipe to form a spiralling passageway around the center pipe between the center pipe and outer pipe. The center pipe has spiralling grooves co-acting with the outer pipe spiralling grooves so that a portion of the outer pipe grooves fit in the center pipe's grooves. Fluid passing through the center pipe has a predetermined turbulence created therein. Cooling fins are mounted in the grooves of the outer pipe in contact with the groove walls to remove heat from both the center pipe and the outer pipe. Special end couplers are provided for connecting the end of the heat exchanger to a liquid input or output for both the center pipe and the outer pipe separately. A coupler for connecting abutting heat exchange units connects the center and outer pipes separately to make longer lengths.
REFERENCES:
patent: 342871 (1886-06-01), Hocking
patent: 3468371 (1969-09-01), Menze
Hobby III William M.
Richter Sheldon J.
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