Title:
MANUFACTURING METHOD OF HEAT EXCHANGER
Document Type and Number:
Japanese Patent JPS5314452
Kind Code:
A
Abstract:
PURPOSE: To improve a heat exchanging efficiency by forming spiral projections on the inner surface of cooling medium pipe in a crooss-fin type heat exchanger and by conforming the cooling medium flow of inside the said pipe in a spiral form.
Inventors:
YAMAMOTO MASASHI
Application Number:
JP8939076A
Publication Date:
February 09, 1978
Filing Date:
July 26, 1976
Export Citation:
Assignee:
SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
TOKYO SANYO ELECTRIC CO
International Classes:
B21C1/22; B21D53/06; B21D53/08; F28F1/10; F28F1/42; (IPC1-7): B21D53/06; F28F1/10
Domestic Patent References:
| JPS5037413A | 1975-04-08 |