摘要 |
The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, particularly for internal combustion engine, said system comprising a rotor element and a stator element, one of said rotor element and stator element having a closed spiral profile, said spiral profile having a continuous curvilinear portion for at least 270°, and a ramp portion joining the ends of said continuous curvilinear portion.
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