Patent ID: 6030193
Filing Date: 2000-02-29
Classification: F01C

Abstract:
A scroll type fluid machine comprising a compressor housing; a front end plate fixed within said compressor housing; a fixed scroll member; and a movable scroll member, said movable scroll member being displaced relative to said fixed scroll member within said compressor housing, said movable scroll member being let to cooperate with said fixed scroll member to orbit around said fixed scroll member while not allowed to self-rotate relative to said fixed scroll member by an Oldham ring, wherein:said Oldham ring comprises a plurality of keys;said front end plate and said movable scroll member having housing keyways and scroll keyways, respectively, formed therein, for receiving said keys;a pair of semi-circular members having wear resistance being assembled to form a ring member on at least one of said front end plate and said movable scroll member, said semi-circular members receiving a thrust load acting on said movable scroll member;the pair of semi-circular members each having ends bent to form bent sections, said bent sections being inserted into said housing keyway or said scroll keyway, said key being within said housing keyway or said scroll keyway when said bent section is within said keyway to receive sliding of said key by said bent section.