| 摘要 |
The present invention provides an elevator. The elevator includes a car having a plurality of side walls coupled to a guide rail. A plurality of wall structures is connected to the guide rail, where a plurality of cavities is located in between the plurality of wall structures and the plurality of side walls. The plurality of wall structures includes a plurality of air outlets, where the air outlets are configured to receive air. The cavities are configured to trap air received from the air outlets and force the air through a cylinder connected to the plurality of wall structures, where the car utilizes the air to produce electricity.
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