Title:
DOUBLE TUBE
Document Type and Number:
Japanese Patent JP2017198392
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a double tube capable of suppressing increase of passage resistance at a bent part and having high pressure resistance.SOLUTION: A double tube is used as an internal heat exchanger 5 of a refrigeration cycle 1 mounted on a vehicle, and includes an outer tube 20 and an inner tube 30 arranged inside the outer tube. At a bent part C where the outer tube and the inner tube are bent, the inner tube does not contact or contact at one place with the outer tube in a radial direction. A bent outside portion of the inner tube is formed with ribs R1, R2, R3 formed into a convex and/or concave shape and having a predetermined length.SELECTED DRAWING: Figure 3
Inventors:
ITO TAKESHI
KAJIZUKA HIROTAKA
HAYASHI NAOTO
KAJIZUKA HIROTAKA
HAYASHI NAOTO
Application Number:
JP2016089790A
Publication Date:
November 02, 2017
Filing Date:
April 27, 2016
Export Citation:
Assignee:
VALEO JAPAN CO LTD
International Classes:
F25B1/00; F25B40/00; F28D7/10; F28F1/40
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