Patent ID: 7228710

Claim:
A scroll compressor comprising: a first scroll member having a base and a generally spiral wrap extending from said base; a second scroll member having a base and a generally spiral wrap extending from its base, said second scroll member being driven to orbit relative to said first scroll member and said wraps of said first and second scroll members interfitting to define compression chambers; an economizer passage communicating a fluid into a housing for said scroll compressor, said economizer passage communicating with a supply passage in one of said first and second scroll members, said supply passage communicating with at least one injection port, said injection port formed to extend through said wrap of said one of said first and second scroll members, and the other of said first and second scroll members being formed with at least one groove in said base to be selectively aligned with said at least one injection port as said second scroll member orbits relative to said first scroll member to communicate the fluid into said at least one compression chamber; and at least one indentation formed in said wrap of said one of said first and second scroll members, said at least one indentation communicating with said at least one groove, at least at a time when said wrap of said one of said first and second scroll members otherwise covers at least partially said at least one groove such that refrigerant can continue to communicate with said at least one compression chamber through said at least one indentation, and from said at least one injection port, into said at least one groove, and then through said at least one indentation into said at least one compression chamber.