Title:
DOUBLE-PIPE TYPE HEAT EXCHANGER
Document Type and Number:
Japanese Patent JPS53145144
Kind Code:
A
Abstract:
PURPOSE: To reduce manufacturing cost of winding mold and assembly operation process and to minimize works in size by molding a double-pipe type heat exchanger coil in the shape of a cone.
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Inventors:
SUGIYAMA AKIRA
Application Number:
JP5975177A
Publication Date:
December 18, 1978
Filing Date:
May 25, 1977
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F25B39/00; (IPC1-7): F25B39/00