Scroll compressor including grooved discharge and bypass valve arrangement

A scroll compressor, comprising:

• a casing;
• an orbiting scroll coupled to a rotary shaft in an inner space of the casing to perform an orbiting motion;
• a non-orbiting scroll engaged with the orbiting scroll to define compression chambers, and provided with a discharge port and bypass holes through which refrigerant in the compression chambers is discharged;
• and
• a discharge valve that opens and closes the discharge port;
• bypass valves that open and close the bypass holes;
• and
• valve fastening members that fix the bypass valves to the non-orbiting scroll, wherein each of the valve fastening members includes a fastening member fixing portion where the valve fastening member is fixed to the non-orbiting scroll, and a valve fixing portion where the bypass valve is fixed to the non-orbiting scroll, wherein the fastening member fixing portion is located farther away from the compression chambers in an axial direction than the valve fixing portion, wherein a valve fixing groove in which a fixing portion of at least one of the bypass valves is fixedly inserted and a valve opening/closing groove in which an opening/closing portion of at least one of the bypass valves is accommodated are formed in a rear surface of the non-orbiting scroll, and wherein the valve fixing groove includes a fastening member fixing surface provided on an inner circumferential surface thereof so as to fix the valve fastening member, and a valve support surface provided on an axial side surface of the valve fixing groove at a position more adjacent to the compression chambers than the fastening member fixing surface so as to axially support the fixing portion of at least one of the bypass valves.