Flat, multi-luminal tube for cross-flow-type indirect heat excha

Details Flat, multi-luminal tube for cross-flow-type indirect heat excha Flat, multi-luminal tube for cross-flow-type indirect heat excha

1983-12-13

1986-02-18

Richter, Sheldon J.

Heat exchange

With protector or protective agent

165170, 165177, 165906, F28F 102

Patent

active

045707006

ABSTRACT:
A transversally corrugated multi-luminal flat tube for circulating the refrigerant of an evaporator for an automotive air conditioner in indirect heat exchange relation with air is provided with one laterally marginal portion, being the one which faces inlet air flow in a transverse cross-flow system, that is so thick-walled about its outer perimeter, that inlet air, which is corrosive because it contains moisture and salt, will be prevented for a sufficiently long time from corroding pinholes through that part of the tube, the remaining part of the outer periphery of the flat tube, because it is less subject to corrosive attack being thinner walled, so as to maximize durability and mass flow rate, while minimizing weight and cost.

REFERENCES:
patent: 527680 (1894-10-01), Gilchrist
patent: 1786337 (1930-12-01), Dargent
patent: 2055549 (1936-09-01), Modine
patent: 3239002 (1966-03-01), Young
patent: 4030539 (1977-06-01), Stute et al.
patent: 4475586 (1984-10-01), Grieb et al.

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