Connection arrangement for two pipes carrying hot fluids, for ex

Details Connection arrangement for two pipes carrying hot fluids, for ex Connection arrangement for two pipes carrying hot fluids, for ex

1986-11-12

1988-05-31

Arola, Dave W.

Pipe joints or couplings

Temperature-responsive

285231, 285906, 285917, 277205, 277230, 277234, 277DIG6, F16L 5500

Patent

active

047476249

ABSTRACT:
To connect two pipes which may carry high-temperature potentially corrosive fluids, for example exhaust gases from an internal combustion engine, while permitting flexing of the pipes with respect to each other in torsion or twist, bending or lateral shift, while maintaining a sealed connection, a ring chamber is formed in the region of the pipe ends, by an overlapping pipe end portion of the like, an external sleeve, or overlapping flange construction, which retains therein a sealing and support pillow of ceramic or metal materials in form of fibers, filaments or the like, felted, matted, woven, knitted and compressed together; a metal sealing foil, for example of aluminum or specialty steel, crinkled or creased and preferably formed with expansion/contraction undulations, is located within the pillow. More than one pillow may be used, and the pillows may be located against one pipe, overlapped by the end portion of another, with a heat insulation therebetween, or spanning a gap of two butt-aligned pipes, axially retained in position by flanges on the pipe ends and/or rim portions of a surrounding sleeve or clamp.

REFERENCES:
patent: 2724602 (1955-11-01), Carey et al.
patent: 2841419 (1958-07-01), Jay
patent: 4516782 (1985-05-01), Usher
patent: 4565380 (1986-01-01), Newman et al.

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