| 摘要 |
The conduits (A,B) are axially aligned with each other and communicate via a pair of coaxial tubular sub-assemblies (2a,b). Each sub-assembly includes a pair of identical bellows portions (5a,b;6a,b) which are elastically deformable in both the radial and axial directions. A central pipe (10a,b) communicates from each of the conduits into an annular cylindrical space (7a,b) defined by an outer tubular casing (3a,b) surrounding the sub-assemblies. A pair of central annular walls (9a,b) divide the casing into two independent portions, with a fluid flow connection via a pair of narrow longitudinal passages (17). ADVANTAGE - Compensation for fluid dynamic forces generated by flow cut-off, avoiding hysteresis effect.
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