As the power piston moves to the right, the yellow linkage forces the loose-fitting, red piston(on the left half of the machine) to displace air to the cooler side of the engine.

当施力活塞到达右边时，黄色连杆会轻轻地带动红色“活塞”（在机器左边），使空气移到引擎较冷的一边。

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Conventional four-stroke engines produce power by moving a piston up and down using rapid explosions of fuel and air in a cylindrical chamber.

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Incoming cooler ambient air from the other end of the piston causes the helium to contract and move the piston to generate AC power.

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