Title:
二重配管装置
Document Type and Number:
Japanese Patent JP5314688
Kind Code:
B2
Abstract:
A double pipe apparatus that includes an outer pipe and an inner pipe inserted into the outer pipe, and regulates a flow of a gas flowing through the double pipe apparatus. The double pipe apparatus includes a flow regulating valve, a valve stem which which penetrates the outer pipe and the inner pipe, and fluid leakage preventing parts including a bellows which is provided between the outer pipe and the inner pipe and which prevents the gas from leaking outside the outer pipe. One end of the bellows is attached to an inner wall of the outer pipe, and the other end of the bellows is attached to a flange formed on the valve stem, so that the gas flowing through the inner pipe is prevented from leaking outside the outer pipe.
Inventors:
Takeyuki travelogue
Shoichi Doi
Shoichi Doi
Application Number:
JP2010524012A
Publication Date:
October 16, 2013
Filing Date:
March 27, 2009
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F16K41/10
Domestic Patent References:
| JP10288276A | ||||
| JP6058459A | ||||
| JP57154578A |
Foreign References:
| US3573863 |
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda
Kunio Ueda