Rotary multi-cylinder gas compressor

A rotary multi-cylinder gas compressor including:

• a stator mechanism including two stators, each of the two stators including a guide ring groove, the guide ring grooves of the two stators axially corresponding to each other to form a track;
• a rotor including a rotary body and a mandrel axially connected to the rotary body, the mandrel being rotatably and axially inserted in the two stators, the rotary body and the mandrel being synchronously rotatably disposed between the two stators, the rotary body including a plurality of cylinders and a plurality of air holes corresponding to the plurality of cylinders, two slots being oppositely disposed through a wall of each of the plurality of cylinders, the plurality of air holes being open on an outer circumferential surface of the rotary body and respectively in communication with interiors of the plurality of cylinders;
• a plurality of pistons respectively received in the plurality of cylinders, each of the plurality of pistons including a piston shaft axially extending through the two slots and movable along the track, each of the plurality of pistons defining a piston top dead center and a piston bottom dead center sequentially located relative to the track;
• and
• an air cover mechanism connected to the stator mechanism and including a plurality of air collecting elements and a plurality of air intake channels, the plurality of air collecting elements and the plurality of air intake channels being alternately arranged around the outer circumferential surface of the rotary body, each of the plurality of air collecting elements forming an air collecting chamber between itself and the outer circumferential surface of the rotary body, each of the plurality of air collecting elements including an air outlet conduit in communication with the air collecting chamber;
• wherein when all of the plurality of air holes in communication with one of the plurality of cylinders correspond to inner end surfaces between two sides of a bottom of one of the plurality of air collecting elements, the plurality of air holes of the one of the plurality of cylinders are blocked and not in communication with the plurality of air collecting elements and the plurality of air intake channels;
• wherein during an intake stroke in which the piston shaft of each of the plurality of pistons moves along the track from the piston top dead center to the piston bottom dead center, the plurality of air intake channels correspond to the plurality of pistons, such that all or part of the plurality of air holes are in communication with one of the air intake channels to draw external gas into one of the plurality of cylinders;
• wherein during a compression stroke in which each of the plurality of pistons moves from the piston bottom dead center to the piston top dead center, all or part of the plurality of air holes are in communication with one of the plurality of air collecting chambers to press the gas into one of the plurality of air collecting chambers.