Opposed-piston engine

An opposed-piston engine comprising:

• a cylinder;
• a first piston provided in the cylinder;
• a second piston provided in the cylinder and opposed to the first piston;
• a first crankshaft to rotate as the first piston reciprocates;
• a second crankshaft to rotate as the second piston reciprocates;
• at least one valve to perform an operation to intake or exhaust air into or from the cylinder;
• and
• a power transmission to transmit a rotational power of the first crankshaft to the at least one valve so as to cause the at least one valve to perform the operation;
• wherein
• the first crankshaft and the second crankshaft are juxtaposed with a space therebetween in an alignment direction in which the first piston and the second piston are aligned;
• and
• the power transmission extends in the alignment direction to a position corresponding to the first crankshaft and to a position corresponding to the second crankshaft across the space therebetween.