Compressor

Abstract

In a compressor in which a housing includes a through-portion through which an end of the rotating shaft protrudes outside and in which the through-portion is sealed by a lip seal device, the through-portion includes a lip-seal-device accommodating portion formed by a flat surface that contacts an entire flat outer circumferential surface of a ring portion of a main lip seal constituting the lip seal device and extending in the axial direction of the rotating shaft, a first detachment-preventing vertical surface located on the inside of the flat surface in the housing and extending radially inward in a direction perpendicular to the axial direction of the rotating shaft, and a second detachment-preventing vertical surface located on the outside of the flat surface in the housing and extending radially inward in a direction perpendicular to the axial direction of the rotating shaft.

1 . A compressor comprising:
 a housing having an inner space;   a compression mechanism that is disposed in the housing and that compresses a fluid taken into the space; and   a rotating shaft that drives the compression mechanism,   the housing including a through-portion through which an end of the rotating shaft protrudes outside, the through-portion being sealed by a lip seal device,   the through-portion including a lip-seal-device accommodating portion formed by   a flat surface that contacts an entire flat outer circumferential surface of a ring portion of a main lip seal constituting the lip seal device and extending in the axial direction of the rotating shaft;   a first detachment-preventing vertical surface located on the inside of the flat surface in the housing and extending radially inward in a direction perpendicular to the axial direction of the rotating shaft; and   a second detachment-preventing vertical surface located on the outside of the flat surface in the housing and extending radially inward in a direction perpendicular to the axial direction of the rotating shaft.   
     
     
         2 . The compressor according to  claim 1 , wherein the first detachment-preventing vertical surface has a depth equivalent to 8% to 40% of the thickness of the ring portion.