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. 2021 Mar 24;104(1):00368504211002345. doi: 10.1177/00368504211002345

Table 1.

Properties of the experimental test engine.

Factor Description
Cylinder diameter 68 mm
Stroke length 45 mm
Cylinder volume 163 cc
Compression ratio 9.0:1
Torque 10.3 Nm/2500 rpm
Peak power 3.6 kW/3600 rpm
Cooling system Air cooled