| 摘要 |
A powertrain for an internal combustion engine having a connecting rod with a piston supported at one end which is adapted for easy assembly and disassembly without expensive tools. The piston is supported on the connecting rod by a universal joint defined by a spherical surface of an integral connecting rod end and an end plate of the piston having a correspondingly configured spherical recess. The connecting rod end is formed with flat surfaces on opposed sides for engagement by releasable securement members which maintain the piston in proper seated position on the connecting rod during normal usage, but which are releasable to permit removal of the piston upon rotation of the connecting rod 90° about its longitudinal axis.
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