| 摘要 |
A piston-connecting rod assembly for a crank shaft creates periods of transition, such as dwell, in engines or compressors. The piston, which reciprocates in compression and power strokes, is connected to the connecting rod by upper and lower piston pins. The connecting rod has (a) a lower end portion for connecting the connecting rod to the crank shaft, (b) a central portion having a central portion opening for receiving the lower piston pin, and (c) an upper end portion having an upper end portion opening for receiving the upper piston pin.
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