Patent ID: 7445437

Claim:
A scroll type fluid machine comprising a housing, a first scroll unit rotatably installed in said housing and a second scroll unit gyrating relatively to said first scroll unit with rotation of said first scroll unit and changing volumes of compression spaces defined by said first scroll unit and said second scroll unit in order to absorb and discharge, wherein: said first scroll unit comprises a pair of end plates with support shafts supported rotatably on said housing respectively and a first wrap group constituted of plural spiral wraps which are secured between said end plates and arranged at equal angular intervals, and said second scroll unit comprises a cylindrical peripheral ring portion held slidably between said pair of end plates of said first scroll unit, a connection block portion located in a center portion thereof and a second wrap group constituted of plural spiral wraps which extend from said ring portion to said connection block portion to define a plurality of insertion spaces into which said wraps of said first wrap group are inserted respectively and which form the compression spaces between the wraps of the first warp group and the second wrap group.