Title:
フィン内蔵管
Document Type and Number:
Japanese Patent JP6502913
Kind Code:
B2
Abstract:
A fin-assembled tube includes a helical fin arranged in an interior of a tube, wherein the tube has: a straight tube portion the center line of which extends in a substantially straight line; and a bent portion the center line of which is curved, and the helical fin is formed such that a helical pitch in an axial direction is longer in a portion positioned in the bent portion relative to the helical pitch in a portion positioned in the straight tube portion, the helical pitch being a pitch of a plate-shaped fin material twisted by a certain angle about the center line.
Inventors:
Hiroyuki Ono
Application Number:
JP2016220486A
Publication Date:
April 17, 2019
Filing Date:
November 11, 2016
Export Citation:
Assignee:
Calsonic Kansei Co., Ltd.
International Classes:
F28F1/40
Domestic Patent References:
| JP2011027285A | ||||
| JP1101092U | ||||
| JP11000720A | ||||
| JP62098985U | ||||
| JP48068257U | ||||
| JP2036782U | ||||
| JP63190779U | ||||
| JP49123657U | ||||
| JP59065280U |
Foreign References:
| WO2011055408A1 |
Attorney, Agent or Firm:
Goto Patent Office
Masaki Goto
Masaaki Iida
Masaki Goto
Masaaki Iida