Compressor

A compressor comprising:

• a first-stage compression unit configured to compress a refrigerant;
• a second-stage compression unit configured to compress the refrigerant compressed by the first-stage compression unit;
• a shaft member connected to the first-stage compression unit and the second-stage compression unit;
• and
• a cover member configured to cover the shaft member,
• a first passage being provided between the first-stage compression unit and the second-stage compression unit,
• a front chamber being provided around the cover member,
• the front chamber being connected to the first passage and to a second passage to which the refrigerant from an economizer is sent, and
• the second passage being provided with a passage structure configured such that a flowing direction of the refrigerant supplied through the second passage to the front chamber is an avoidance direction, the avoidance direction being a direction that differs from a direction toward the shaft member,
• the second passage having a first discharge port and a second discharge port, the axes of each of the first and second discharge ports defining an acute angle with regard to a longitudinal axis of the second passage,
• a first branch flow portion of the second passage being provided with the first discharge port,
• a second branch flow portion of the second passage being provided with the second discharge port,
• a first distance between a first inner wall of the first branch flow portion closest to the longitudinal axis and the longitudinal axis increasing toward the first discharge port, and
• a second distance between a second inner wall of the second branch flow portion closest to the longitudinal axis and the longitudinal axis increasing toward the second discharge port.