DOUBLE-WALLED PIPE, METHOD FOR MANUFACTURING DOUBLE-WALLED PIPE, AND VAPOR GENERATOR

Title:

DOUBLE-WALLED PIPE, METHOD FOR MANUFACTURING DOUBLE-WALLED PIPE, AND VAPOR GENERATOR

Document Type and Number:

WIPO Patent Application WO/2011/089909

Kind Code:

A1

Abstract:

A double-walled pipe formed by connecting double-walled pipe forming members, which are each composed of an inner pipe and an outer pipe, by means of welding at the welding portions between the ends of the double-walled pipe forming members in the axial direction thereof. A groove is provided in the welding portion of each of the double-walled pipe forming members. The length of the groove in the axial direction is set to be greater than or equal to a half of the width of a penetration bead formed by the welding of the welding portion or to be greater than or equal to a half of the width of a weld bead formed also by the welding.

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Inventors:

HINO, Takehisa (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
日野　武久 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
TAMURA, Masataka (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
田村　雅貴 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
TANAKA, Yoshimi (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
田中　義美 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
KONO, Wataru (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
河野　渉 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
SAKAMOTO, Toru (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)

Application Number:

JP2011/000288

Publication Date:

July 28, 2011

Filing Date:

January 20, 2011

Export Citation:

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Assignee:

KABUSHIKI KAISHA TOSHIBA (1-1 Shibaura 1-chome, Minato-ku Tokyo, 01, 〒1058001, JP)
株式会社　東芝 (〒01 東京都港区芝浦一丁目１番１号 Tokyo, 〒1058001, JP)
HINO, Takehisa (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
日野　武久 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
TAMURA, Masataka (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
田村　雅貴 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
TANAKA, Yoshimi (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
田中　義美 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)
KONO, Wataru (Toshiba Corporation 1-1, Shibaura 1-chome, Minato-k, Tokyo 01, 〒1058001, JP)
河野　渉 (〒01 東京都港区芝浦一丁目１番１号　株式会社　東芝　知的財産部内 Tokyo, 〒1058001, JP)

International Classes:

B23K26/20; B23K33/00; F22B1/06; G21C1/02; G21D1/00; B23K9/00; B23K9/028

Attorney, Agent or Firm:

SAKURA PATENT OFFICE, p.c. (Kanda Higashiyama Bldg, 1 Kandata-cho 2-chome, Chiyoda-k, Tokyo 46, 〒1010046, JP)

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