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Title:
PIPING COMPRISING MULTI-DRILLED PIPE AND A PLURALITY OF BRANCH PIPES, ITS CONNECTING STRUCTURE, PROCESSING METHOD, AND BRANCH PIPE FORMING METHOD
Document Type and Number:
Japanese Patent JP2006329412
Kind Code:
A
Abstract:

To provide a connecting structure of piping capable of positively and easily connecting a plurality of branch pipes to an end of a multi-drilled pipe whose inside is divided into a plurality of communication holes.

The multi-drilled pipe 1 is divided into the plurality of communication holes 4 by partitioning walls 3. The multi-drilled pipe 1 has an enlarged diameter part 11 at an end. The center of each of the branch pipes 10 is offset by press working with respect to an opening part of the multi-drilled pipe 1. Thereby, when each of the branch pipes 10 is inserted into the communication holes 4 of the end of the multi-drilled pipe 1, because the centers of the branch pipes 10 are offset with respect to the opening part of each of the communication holes 4, a comparatively large space can be formed between each of the branch pipes 10, and a brazing material layer 14 can be placed on the entire periphery of each of the branch pipes 10.


Inventors:
ICHIMURA NOBUO
TAKAMATSU YOSHIKAZU
TAKASAKI HIROMI
SATO SUSUMU
Application Number:
JP2005158198A
Publication Date:
December 07, 2006
Filing Date:
May 30, 2005
Export Citation:
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Assignee:
CALSONIC KANSEI CORP
International Classes:
F16L39/00; F16L41/02
Domestic Patent References:
JPS61211593A1986-09-19
JPH03288094A1991-12-18
JPS53117852A1978-10-14
JP2004156900A2004-06-03
JP2002303391A2002-10-18
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu



 
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