Co-rotating scroll compressor

A co-rotating scroll compressor comprising:

• a driving-side scroll member that is driven to rotate around a rotation axis by a driving unit and has a spiral driving-side wall disposed on a driving-side end plate;
• a driven-side scroll member in which a spiral driven-side wall corresponding to the driving-side wall is disposed on a driven-side end plate and the driven-side wall engages with the driving-side wall to form a compression space;
• and
• a synchronous driving mechanism that transmits driving force of the driving unit to the driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity, wherein
• the synchronous driving mechanism comprises a crankpin and a rolling bearing that rotatably supports a shaft portion of the crankpin,
• the rolling bearing comprises an inner ring fitted to the shaft portion and an outer ring fitted to a bearing supporting member that supports the shaft portion,
• a sealing member that extends to a side portion of the inner ring is fixed to a side portion of the outer ring, and
• a predetermined gap is provided between the sealing member and the side portion of the inner ring.

A co-rotating scroll compressor comprising:

• a driving-side scroll member that is driven to rotate around a rotation axis by a driving unit and has a spiral driving-side wall disposed on a driving-side end plate;
• a driven-side scroll member in which a spiral driven-side wall corresponding to the driving-side wall is disposed on a driven-side end plate and the driven-side wall engages with the driving-side wall to form a compression space;
• and
• a synchronous driving mechanism in which the driving-side scroll member transmits driving force to the driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity, wherein
• the synchronous driving mechanism comprises a crankpin and a rolling bearing that rotatably supports a shaft portion of the crankpin,
• the rolling bearing comprises an inner ring fitted to the shaft portion and an outer ring fitted. to a bearing supporting member that supports the shaft portion,
• a sealing member that extends to a side portion of the outer ring is fixed to a side portion of the inner ring, and
• a predetermined gap is provided between the sealing member and the side portion of the outer ring.

A co-rotating scroll compressor comprising:

• a driving-side, scroll member that is driven to rotate around a rotation axis by a driving unit and has a spiral driving-side wall disposed on a driving-side end plate;
• a driven-side scroll member in which a spiral driven-side wall corresponding to the driving-side wall is disposed on a driven-side end plate and the driven-side wall engages with the driving-side wall to form a compression space;
• and
• a synchronous driving mechanism in which the driving-side scroll member transmits driving force to the driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity, wherein
• the synchronous driving mechanism comprises a crankpin and a rolling bearing that rotatably supports a shaft portion of the crankpin,
• the rolling bearing comprises an inner ring fitted to the shaft portion and an outer ring fitted to a bearing supporting member that supports the shaft portion, and
• a chip seal that is disposed on an outer peripheral side of the rolling bearing with respect to a center axis of the shaft portion of the crankpin to seal a space on a side of the rolling bearing between the chip seal and a wall portion facing the bearing supporting member is provided.

A co-rotating scroll compressor comprising:

• a driving-side scroll member that is driven to rotate around a rotation axis by a driving unit and has a spiral driving-side wall disposed on a driving-side end plate;
• a driven-side scroll member in which a spiral driven-side wall corresponding to the driving-side wall is disposed on a driven-side end plate and the driven-side wall engages with the driving-side wall to form a compression space;
• and
• a synchronous driving mechanism in which the driving-side scroll member transmits driving force to the driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity, wherein
• the synchronous driving mechanism comprises a crankpin and a rolling bearing that rotatably supports a shaft portion of the crankpin,
• the rolling bearing comprises an inner ring fitted to the shaft portion and an outer ring fitted to a bearing supporting member that supports the shaft portion,
• a sealing wall portion fixed to the bearing supporting member to seal the rolling bearing from a lateral side is provided at a side portion of the rolling bearing, and
• a recess formed to a lateral side from the outer ring in an annular shape to correspond to the outer ring is provided to the sealing wall portion.