Title:
FLEXIBLE DUCT FOR COUPLING BETWEEN COOLER FOR POWER DEVICE OF TRANSFORMER AND THE LIKE IN RAILWAY TRAIN AND MOTOR-DRIVEN BLOWER
Document Type and Number:
Japanese Patent JPS61236339
Kind Code:
A
Abstract:
PURPOSE:To readily attach or detach a device and to alleviate and absorb a vibration by forming a flexible duct body of a bellow structure made of a sheetlike material, thereby providing a hermetically sealing state. CONSTITUTION:A skeleton 2 is provided at the intermediate of a bellow structure 1 made of inflammable sheetlike material, and cylindrical portions 3a, 3b are provided at both ends. The portion 3a is connected with a coupling duct 5 coupled through a phase flange with a duct 4 with a flange of an oil cooler for cooling transformer, and the portion 3b is connected with a duct 5 of a motor-driven blower. The portions 3a, 3b are clamped by a clamping band 7 with the outer peripheral surfaces of the ducts 5, 6. The peripheral ends of the holes of the portions 3a, 3b are forcibly opened by a hole expanding ring 10 to a bore larger than the outer diameter of the duct 5, 6. Thus, it can be readily mounted on the outer surface of the duct.
More Like This:
Inventors:
IZUMITANI TAKAMI
SAWANO EIJI
FUJIMORI NAOHARU
SAWANO EIJI
FUJIMORI NAOHARU
Application Number:
JP7501485A
Publication Date:
October 21, 1986
Filing Date:
April 08, 1985
Export Citation:
Assignee:
JAPAN NATIONAL RAILWAY
NAKAMURA JICO KK
NAKAMURA JICO KK
International Classes:
B61C17/00; B61D27/00; H01F27/08; H02K5/00; H02K5/10; H02K5/24; (IPC1-7): B61C17/00; H01F27/08; H02K5/00
Attorney, Agent or Firm:
Tai Oshima