Scroll compressors

A scroll compressor, comprising:

• a drive mechanism,
• a drive scroll rotatably driven by the drive mechanism and having a first rotational axis,
• a driven scroll opposing the drive scroll and having a second rotational axis, wherein at least one compression chamber is defined between the drive scroll and driven scroll, the first rotational axis is parallel to, but offset from, the second rotational axis, and the driven scroll is arranged and constructed to be rotatably driven in synchronism with the drive scroll;
• wherein a first scroll selected from the drive scroll and the driven scroll is supported in a straddle manner from sides that are opposite to the at least one compression chamber, and a second scroll selected from the other of the drive scroll and the driven scroll is supported in a cantilever manner from one side that is opposite to the at least one compression chamber, wherein the second scroll is arranged and constructed to be movable along its axial direction;
• and
• a discharge chamber defined within a face of the second scroll that is opposite to the at least one compression chamber, wherein the discharge chamber is arranged and constructed to receive relatively high pressure refrigerant discharged from the at least one compression chamber, and the second scroll is further arranged and constructed to be biased toward the first scroll when the relatively high pressure refrigerant applies a force against the second scroll.