Sliding vane rotary compressor

Claim 1

In a rotary compressor for compressing a gaseous lubricant bearing working medium, means for passing said medium to the moving parts of the compressor, comprising: a. a stator having a peripheral wall and end walls defining a working chamber and having outlet passage means for the compressed medium; b. a slotted rotor accommodating a plurality of vanes slidably mounted in the slots thereof for frictionally engaging the walls of said working chamber to compress said medium; c. said rotor being carried by a rotary shaft the ends of which are journalled in bearings in said end walls and having a channel extending axially therethrough in lubricant communication relationship with said bearings: d. passage means in said stator for discharging the compressed medium from said working chamber to said outlet passage means in at least one of said end walls; e. a suction chamber in one of said end walls adjacent the bearing located therein and in lubricating communication therewith; f. means for supplying said meDium to said suction chamber; g. first passage means for passing said medium from said suction chamber into said working chamber; h. a space in the end wall opposite to said suction chamber in lubrication relationship with respect to the bearing located in said end wall; i. second passage means for passing said medium from said space into said working chamber, and j. third passage means for passing said medium into said working chamber from said suction chamber through the adjacent bearing.