Co-rotating scroll compressor and method of assembling the same

Abstract

A co-rotating scroll compressor includes a driving-side scroll member ( 70 ) that is rotationally driven by a driving unit and includes a spiral driving-side wall ( 71 b ) disposed on a driving-side end plate ( 71 a ), and a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall ( 71 b ), the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall ( 71 b ) to form a compression chamber. Positioning pins ( 40 ) that position a phase of the driving-side scroll member ( 70 ) around a driving-side rotation axis (CL 1 ) are provided at two positions around the driving-side rotation axis (CL 1 ) at a front end of the driving-side wall ( 71 b ) in an axis direction, and dummy pins ( 41 ) that are provided at equal angular intervals around the driving-side rotation axis (CL 1 ) with the positioning pins ( 40 ) are provided.

1 - 7 . (canceled) 
     
     
         8 . A co-rotating scroll compressor, comprising:
 a driving-side scroll member that is rotationally driven by a driving unit and includes a spiral driving-side wall disposed on a driving-side end plate;   a driven-side scroll member that includes a driven-side wall corresponding to the driving-side wall, the driven-side wall being disposed on a driven-side end plate and engaging with the driving-side wall to form a compression chamber; and   a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member to cause the driving-side scroll member and the driven-side scroll member to perform rotational movement in a same direction at a same angular velocity, wherein   positioning pins that position a phase of the driving-side scroll member around a rotation axis are provided at two positions around the rotation axis at a front end of the driving-side wall in an axis direction, and dummy pins that are provided at equal angular intervals around the rotation axis with the positioning pins are provided at one or more positions, and/or   positioning pins that position a phase of the driven-side scroll member around a rotation axis are provided at two positions around the rotation axis at a front end of the driven-side wall in an axis direction, and dummy pins that are provided at equal angular intervals around the rotation axis with the positioning pins are provided at one or more positions.   
     
     
         9 . The co-rotating scroll compressor according to  claim 8 , wherein
 the driving-side scroll member includes a first driving-side scroll portion and a second driving-side scroll portion, the first driving-side scroll portion including a first driving-side end plate and a first driving-side wall and being driven by the driving unit, and the second driving-side scroll portion including a second driving-side end plate and a second driving-side wall, and   positioning of the phase of the driving-side scroll member around the rotation axis is performed between a front end of the first driving-side wall in the axis direction and a front end of the second driving-side wall in the axis direction.   
     
     
         10 . The co-rotating scroll compressor according to  claim 9 , wherein
 the driven-side scroll member includes a first driven-side wall and a second driven-side wall, the first driven-side wall being provided on one side surface of the driven-side end plate and engaging with the first driving-side wall, and the second driven-side wall being provided on another side surface of the driven-side end plate and engaging with the second driving-side wall,   the co-rotating scroll compressor includes a first support member and a second support member, the first support member being fixed to a front end side of the first driven-side wall in the axis direction with the first driving-side end plate in between and rotating together with the first driven-side wall, and the second support member being fixed to a front end side of the second driven-side wall in the axis direction with the second driving-side end plate in between and rotating together with the second driven-side wall, and   positioning of the phase of the driven-side scroll member around the rotation axis is performed between the first driven-side wall and the first support member and between the second driven-side wall and the second support member.