| 摘要 |
A flexible coupling for use in engine exhaust systems includes a pair of flanges maintained at a fixed distance with respect to one another by a pair of spaced shouldered bolt components and wherein one of the fixed flanges has a free end directed therefrom supportingly receiving a ring seal with a spherical surface thereon; and wherein the other of the flanges includes an edge portion thereon bent over to form a spring seat and to define a pipe opening to receive a spherically flared end of a downstream pipe and supportingly receiving one end of a coil spring that surrounds the downstream pipe, the coil spring having the opposite end thereof supported by one of the spaced flanges and a movable retainer ring on an outer spherical surface of the spherically flared end whereby a resilient force is maintained continuously around the outer surface of the flared end of the downstream pipe to bias it into sealing engagement with the ring seal and to force the ring seal into a sealed shouldered relationship with the fixed flange of the assembly during angular movement between the fixed flange and a downstream pipe component.
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