SCROLL TYPE COMPRESSOR HAVING AN ABRASION-RESISTANT MEANS BETWEEN A CRANK PIN AND A MOVABLE SCROLL IN AN AXIAL DIRECTION

摘要

A FIXED SCROLL (16) AND A MOVABLE SCROLL (18) COOPERATIVELY DEFINE COMPRESSING CHAMBERS THEREBETWEEN. THE MOVABLE SCROLL IS DRIVEN BY A CRANK PIN (12) ECCENTRICALLY ATTACHED TO A SHAFT (11) WHICH IS ROTATED BY AN EXTERNAL DRIVING SOURCE. A SURFACE TREATMENT FOR ABRASION RESISTANCE IS APPLIED TO AT LEAST ONE OF AN END SURFACE OF THE CRANK PIN (12) AND A CONFRONTING END PLATE (18A) OF THE MOVABLE SCROLL (18).IT MAY ALSO BE ARRANGED THAT AN ABRASION-RESISTANT PLATE IS INTERPOSED BETWEEN THE END SURFACE OF THE CRANK PIN (12) AND THE CONFRONTING END PLATE (18A) OF THE MOVABLE SCROLL (18).(FIG 1)