此種汽缸與汽車的四衝程汽缸不同，在活塞來回時都會產生推拉力，並靠著輪子的迴轉運動自動切換氣閥。 This piston and cylinder set is different from the common automobile's four-stoke piston and cylinder because during the process the piston produces trailing force, and controls the intake and exhaust of the valve by the rotation of the wheel.
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This piston and cylinder set is different from the common automobile's four-stoke piston and cylinder because during the process the piston produces trailing force, and controls the intake and exhaust of the valve by the rotation of the wheel.