Patent ID: 8147230

Claim:
A scroll compressor comprising: a compressor housing including a casing having a chamber formed in said casing for receiving a fluid, and having a rearward end, and having a compartment formed in said rearward end and communicative with said chamber of said casing, said casing including an inlet port formed in said rearward end of said casing, and including an outlet port formed in said rearward end of said casing and communicative with said compartment of said casing, a fixed scroll mounted within said chamber of said casing, and including a base plate fixed to said casing for separating said compartment and said chamber of said casing from each other, and including a spiral scroll element extended from said base plate and disposed and located within said chamber of said casing, and an orbiting scroll rotatably disposed and located within said chamber of said casing, and including a carrier plate, and including a spiral scroll element extended from said carrier plate and located within said chamber of said casing and arranged at an angular and radial offset from said spiral scroll element of said fixed scroll and arranged to form a line contact between said spiral scroll elements of said fixed scroll and said orbiting scroll, and arranged for forming a sealed off fluid pocket within said chamber of said casing, and said fixed scroll including an inlet mouth formed therein and coupled to said inlet port of said casing and separated from said compartment of said casing for receiving the fluid from said inlet port of said casing, and including a fluid passage formed through said base plate and communicative with said inlet mouth for allowing the fluid to flow from said inlet port of said casing into said inlet mouth of said base plate, and then into said fluid pocket, and then to be compressed into a compressed fluid by a relative orbital motion between said spiral scroll elements of said fixed scroll and said orbiting scroll, and said fixed scroll including a discharge port formed through said base plate and communicating said fluid pocket with said compartment of said casing for allowing the compressed fluid to flow from said fluid pocket into said compartment of said casing, and then to flow out through said outlet port of said casing, said fixed scroll including a protrusion extended from said base plate and extended and located opposite to said spiral scroll element of said fixed scroll and disposed and located within said compartment of said casing and engaged with said rearward end of said casing for spacing said base plate from said rearward end of said casing and for forming said compartment of said casing as a discharge chamber, and said inlet mouth being formed through said protrusion of said fixed scroll.