| 摘要 |
An assembly includes a cylinder ( 232 ) and a piston assembly ( 212 ) housed within the cylinder and configured for reciprocal motion relative to the cylinder. The piston assembly and cylinder include a magnet ( 230 ) and coil ( 234 ) configured to undergo relative motion of the piston assembly and cylinder. The assembly includes a transition arm ( 214 ) and a rotating member ( 222 ) coupled to the piston assembly by the transition arm. The reciprocal motion is linear in space and sinusoidal in time.
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