Patent ID: 7942655

Claim:
A device for altering the pressure within a container having a fixed scroll enmeshed with an orbiting scroll, said orbiting scroll driven by an eccentric shaft, said eccentric shaft driven by a motor, a coolant, and a case containing said fixed scroll and said orbiting scroll further comprising: a fixed cooling plate attaching behind said fixed scroll and having a central hole and a partially annular groove, said groove forming a passage between said fixed cooling plate and said fixed scroll, said groove having at least one aperture separated by a wall for transmitting coolant into, through, and out of said passage; a first end plate perpendicular to said fixed scroll and coplanar with said fixed scroll, having two adjacent apertures with one bolt between said apertures, said apertures in communication with said inlet and said outlet; an orbiting cooling plate attaching behind said orbiting scroll and having a central hole and a partially annular groove, said groove forming a passage between said orbiting cooling plate and said orbiting scroll, said groove having at least one aperture separated by a wall for transmitting coolant into, through, and out of, said passage; a second end plate perpendicular to said orbiting cooling plate and to said first end plate, having two adjacent apertures with two bolts between said apertures, said apertures in communication with said inlet and said outlet; a first bellows connecting the left apertures of said first end plate and said second end plate having sealing rings at both ends of said first bellows; and, a second bellows connecting the right apertures of said first end plate and said second end plate having sealing rings at both ends of said second bellows; whereby coolant enters said inlet into said fixed cooling plate and said first bellows into said inlet of said orbiting cooling plate, travels through said passages in said fixed cooling plate and said orbiting cooling plate, returns through said outlet of said orbiting cooling plate into said second bellows and said outlet of said fixed cooling plate for exchange of heat outside said device.