Structure for compensating for different thermal expansions...

Details Structure for compensating for different thermal expansions... Structure for compensating for different thermal expansions...

F - Mech Eng,Light,Heat,Weapons

16

L

189/27

F16L 35/00 (2006.01)

Patent

CA 1144091

ABSTRACT The annular space between inner and outer coaxially- mounted pipes is sealed by a bellows diaphragm with a cylindrical surface corrugated in the longitudinal direction formed in and at one end of said annular space, wherein one end of said bellows is circumferentially attached to a circumferential portion of the outer surface of the inner pipe and the other end of said bellows is circumferentially attached to a circumferential portion of the inner surface of said outer pipe. The other end of said annular space is sealed by a ring attached to a circum- ferential portion of the outer surface of the inner pipe and to a circumferential portion of the inner surface of the outer pipe. In one version of the invention this ring includes a pressure release valve to allow any high pressure fluids in the annular space to escape.

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