| 摘要 |
PCT No. PCT/US91/00990 Sec. 371 Date Oct. 25, 1991 Sec. 102(e) Date Oct. 25, 1991 PCT Filed Feb. 19, 1991.A gearing system includes a pair of gear support plates (5,10) arranged to rotate about parallel but offset axes (9,14) with the plates extending parallel to each other in parallel radially extending planes. Each plate includes axially extending teeth (40,45) having concave (43,45) and convex opposed surfaces. The teeth are interdigitated axially such that various pairs of interdigitated teeth will be in cooperating surface contact. Rotation of each support plate about its own axis causes the teeth to orbit relative to each other and engage in a driving relationship in a smooth manner, with the convex portion of certain teeth engaging smoothly with the concave portion of adjacent teeth. In one embodiment, the gear teeth take the form of section of lune shaped elements. In another embodiment, the gear teeth take the form of truncated involutes. In still a further embodiment, the teeth are constituted by multi-faceted polygons. The gearing system provides a 1:1 speed ratio and has application as an Oldham coupling or synchronizer for a scroll fluid device.
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