Washing machine

A washing machine configured to perform washing using carbon dioxide, the washing machine comprising:

• a first housing that defines an opening and an inner space;
• a drum disposed in the inner space of the first housing and configured to receive laundry;
• a barrier that is coupled to the first housing and seals the opening of the first housing;
• a motor assembly coupled to a surface of the barrier, the motor assembly comprising a stator, a rotor, and a bearing housing;
• a rotary shaft disposed in the bearing housing, the rotary shaft having (i) a first end coupled to the rotor and (ii) a second end coupled to the drum;
• and
• a second housing that faces the surface of the barrier and is coupled to the first housing, the second housing accommodating the motor assembly,
• wherein the barrier defines (i) a first space between the first housing and the barrier and (ii) a second space between the second housing and the barrier, the barrier being configured to block liquid carbon dioxide injected into the first space from leaking into the second space, and
• wherein the barrier includes:
• a first through-hole that receives the rotary shaft, and
• a second through-hole defined above the first through-hole, the barrier being configured to allow flow of gaseous carbon dioxide between the first space and the second space via the second through-hole.