Scroll compressor

Abstract

The scroll compressor includes scroll members that include a compression chamber to compress working fluid, a housing that houses the scroll members, a second driving-side shaft portion that discharges the compressed working fluid from the compression chamber and is rotated around an axis with respect to the housing, a bearing that rotatably supports the housing with respect to the second driving-side shaft portion , and a seal member between the second driving-side shaft portion and the housing . A lubricant is provided between the bearing and the seal member.

1 . A scroll compressor, comprising:
 paired scroll members that include a compression chamber to compress working fluid;   a housing that houses the paired scroll members;   a discharge cylinder that discharges the compressed working fluid from the compression chamber and is rotated around an axis with respect to the housing;   a bearing that rotatably supports the discharge cylinder with respect to the housing; and   a seal member that is located between the discharge cylinder and the housing, wherein   a lubricant is enclosed in a space formed between the bearing and the seal member.   
     
     
         2 . The scroll compressor according to  claim 1 , wherein
 the bearing is a rolling bearing including seal plates on respective side surfaces, and   the seal plates are fixed to an outer ring of the bearing and are not in contact with an inner ring of the bearing.   
     
     
         3 . The scroll compressor according to  claim 1 , wherein the bearing is a rolling bearing including a seal plate on a side surface on side opposite to the seal member side, and does not include a seal plate on a side surface on the seal member side. 
     
     
         4 . The scroll compressor according to  claim 1 , wherein the seal member is an oil seal. 
     
     
         5 . The scroll compressor according to  claim 1 , further comprising a driving shaft that is rotationally driven by a driving unit, wherein
 the scroll compressor is configured as a double rotating scroll compressor that includes a driving-side scroll member and a driven-side scroll member as the paired scroll members, the driving-side scroll member being coupled to the driving shaft and performing rotational movement, and the driven-side scroll member receiving power transmitted from the driving-side scroll member to perform rotational movement.