Scroll compressor
AssigneeCopeland Corporation
InventorsHarry Clendenin, Keith James Reinhart
Life of this patent
Estimating the term…
Abstract
A scroll compressor has a shell within which is positioned a frame. The frame is supported by a base portion of the shell to prevent axial movement of the frame with respect to the shell. A motor stator, a main bearing housing and a lower bearing housing are each positioned within the shell by engagement with the frame. A drive member which includes a motor rotor is rotatably supported by both the main bearing housing and the lower bearing housing. The frame, by positioning the motor stator, the main bearing housing and the lower bearing housing, allows the “air gap” between the motor stator and the motor rotor to be accurately controlled.
Claims25
A scroll machine comprising:
- an outer shell;
- a cap secured to said shell;
- a base telescopically engaging said outer shell;
- a first scroll member disposed within said outer shell, said first scroll member having a first spiral wrap projecting outwardly from a first end plate;
- a second scroll member disposed within said outer shell, said second scroll member having a second spiral wrap projecting outwardly from a second end plate, said second scroll wrap being interleaved with said first spiral wrap to define a plurality of moving chambers therebetween when said second scroll member orbits with respect to said first scroll member;
- a frame disposed within and secured directly to said outer shell, said frame abutting said base;
- a motor stator secured to said frame, said motor stator defining a central bore;
- a main bearing housing separate from and secured to said frame;
- a lower bearing housing separate from and secured to said frame;
- a drive member rotatably supported by said main bearing housing and said lower bearing housing, said drive member causing said second scroll member to orbit with respect to said first scroll member;
- and
- a motor rotor secured to said drive member, said motor rotor being disposed within said central bore of said motor stator.
A scroll machine comprising:
- an outer shell;
- a first scroll member disposed within said outer shell, said first scroll member having a first spiral wrap projecting outwardly from a first end plate;
- a second scroll member disposed within said outer shell, said second scroll member having a second spiral wrap projecting outwardly from a second end plate, said second scroll wrap being interleaved with said first spiral wrap to define a plurality of moving chambers therebetween when said second scroll member orbits with respect to said first scroll member;
- a frame disposed within and secured directly to said outer shell;
- and
- a base secured to said outer shell, said base telescopically engaging said outer shell to abut said frame to prevent movement of said frame with respect to said shell.
Dependencies are inferred from the claim text.