circular crank slider mechanism, reciprocating part, engine block, and internal combustion engine, compressor is a circular crank slider mechanism comprising the multi-row moving part and the alternative part of a row: the reciprocating multi-row movement has a guide part which is divided by a longitudinal groove into two parallel rows, respectively called by the first row of the guide section into which a first bore is received which receives the circular slider; and the second row of the guide section into which a second hole is provided receiving the second circular slider, the reciprocating motion part of a row has a reciprocating motion part of multiple rows along the thickness direction so as to cross vertically the reciprocating multi-row movement part, the guide part is provided therein with a hole receiving the intermediate circular slider, the first circular slider and the second circular sliders are mounted in the same phase, the intermediate circular slider is sandwiched between the first circular slider and the second circular slider and is located with a phase difference of 180 degrees compared to the two circular sliders, with the adjacent circular sliders being attached to each other. The invention also proposes an alternative motion element, an engine block, an internal combustion engine and a compressor.
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