| 摘要 |
<p>Connecting member 4 coupled to four pistons that reciprocate within cylinder bores B1, B2 is coupled to crankpin 1a of crankshaft 1, and pinion member 20 which integrally rotates with a crankshaft portion 1d capable of rolling along the inner periphery of an internal gear member 19 and has an outer diameter L2 equal to 1/2 of the inner diameter L1 of the internal gear member 19, and the crankpin 1a executes reciprocating rectilinear motion through the rotation and revolution of the pinion member 20, and the journal support member 17a has bearing b3 for supporting the crank journal 1b so as to rotate positioned between the pinion member 20 and the crank arm 1c, and which is supported by the case member H so as to rotate coaxially with the output member 17.</p> |
