Co-rotating scroll compressor

A co-rotating scroll compressor comprising:

• a housing having a scroll chamber into which fluid is drawn from outside of the housing;
• a driving mechanism accommodated in the scroll chamber and including:
• a stator including:
• a stator core having a cylindrical shape centered about a driving axis and extending in a direction of the driving axis;
• a first coil end having a cylindrical shape and extending from the stator core toward one side of the co-rotating scroll compressor along the direction of the driving axis;
• and
• a second coil end having a cylindrical shape and extending from the stator core toward the other side of the co-rotating scroll compressor opposite to the one side along the direction of the driving axis;
• and
• a rotor disposed outward of the stator to surround the stator, the rotor being rotated by the stator;
• a driven mechanism accommodated in the scroll chamber;
• a driving scroll accommodated in the scroll chamber and configured to be rotated by the driving mechanism about the driving axis;
• and
• a driven scroll accommodated in the scroll chamber and eccentric to the driving scroll, the driven scroll being configured to be rotated by the driving scroll and the driven mechanism about a driven axis, the driving scroll and the driven scroll forming a compression chamber for compressing the fluid with rotation of the driving scroll and rotation of the driven scroll, wherein
• a protrusion is provided in the scroll chamber, protrudes toward the driving scroll and the driven scroll in the direction of the driving axis, and is fixed to the stator core,
• the driving scroll includes a cover body that rotates together with the rotor,
• the cover body includes a wall portion that extends in a radial direction of the driving scroll and faces the first coil end in the direction of the driving axis,
• the wall portion is connected to a cylindrical portion having a cylindrical shape, the cylindrical portion extends in the direction of the driving axis and surrounds the first coil end that is radially inward of the cylindrical portion in the radial direction of the driving scroll, and rotation of the rotor is transmitted to the cover body via the cylindrical portion,
• the wall portion has a suction port that is radially inward of the cylindrical portion in the radial direction of the driving scroll, and the fluid in the scroll chamber is drawn into the compression chamber through the suction port,
• a first suction passage is formed between the housing and the rotor in the radial direction of the driving scroll, and the fluid flows from the cover body toward the rotor through the first suction passage in the direction of the driving axis in the scroll chamber, and
• a second suction passage is formed between the rotor and the stator in the radial direction of the driving scroll, and the fluid that has flowed through the first suction passage flows from the rotor toward the cover body in the direction of the driving axis and is guided to the suction port through the second suction passage.