| 摘要 |
A swim-in-place pool (100) has horizontal inner and outer circulating waterways (110/114, S) arranged in such manner that a portion of the inner waterway (S) coincides with a portion of the outer waterway. The non-coincident portion of the inner waterway then provides a swimming space (S). A plurality of impeller blades (140) are suspended in a spaced series within the coinciding portion of the two waterways, each of the blades (140) in its operative condition extending transversely of that waterway and occupying substantially all of its cross-sectional area. A power drive (182) advances the blades in unison along the coinciding portion of the two waterways so that a rather fixed body of water is captured between each two adjacent blades and advanced therewith. A diversion structure (117, 118; 119, 120) adjacent the entry of the non-coincident portion of the inner waterway diverts a continuous flow of water in a relatively non-turbulent state into and through the swimming space (S). <IMAGE> <IMAGE>
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