Heat exchanger element and method of making the same

Details Heat exchanger element and method of making the same Heat exchanger element and method of making the same

1992-03-12

1993-01-26

Flanigan, Allen J.

Heat exchange

Flow passages for two confined fluids

Interdigitated plural first and plural second fluid passages

165905, 428294, 156 622, 156292, 156177, F28F 308

Patent

active

051815621

ABSTRACT:
A heat exchange element employed in heat exchangers of air conditioning system includes a heat exchanging sheet member containing heat meltable synthetic resin fibers and a plurality of elongate rollable shaped spacers. The heat exchanging sheet member has one side on which the spacers are bonded by a heat meltable layer of the synthetic resin fibers contained in the heat exchanging sheet member so that each spacer is spaced from the adjacent spacer on the heat exchanging sheet member. A method of making the heat exchange element includes steps of rolling a plurality of elongate rollable spacers on a base having in an upper face a plurality of spaced grooves so that the spacers are positioned in the respective grooves, unrolling a rolled heat exchanging sheet member containing synthetic resin fibers and placing the unrolled portion of the sheet member over the base, heating an upper side of the sheet member over the base by heaters so that the synthetic resin fibers contained in the sheet member are melted and bonding the spacers to a lower side of the sheet member by a heat melted layer of the synthetic resin fibers, and cutting the sheet member with the spacers bonded to it so as to have predetermined dimensions.

REFERENCES:
patent: 3428141 (1969-02-01), Forstner et al.
patent: 3613258 (1971-10-01), Jamieson
patent: 3867245 (1975-02-01), Herman
patent: 4110505 (1978-08-01), Prewo
patent: 4858685 (1989-08-01), Szucs et al.
patent: 4874042 (1989-10-01), Becker
patent: 4944995 (1990-07-01), Owens

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