Antirotation reed valve systems and methods for compressors

A compressor comprising:

• a scroll compressor including a fixed scroll and an orbiting scroll, wherein the fixed scroll includes a compressor surface defining at least one valve opening, a compressor mounting opening, and a compressor antirotation feature;
• a reed including a reed mounting opening and a reed antirotation feature, wherein the reed is positionable between an open position where the reed does not obstruct the at least one valve opening and a closed position wherein the reed blocks at least a portion of the valve opening, wherein the reed antirotation feature includes an arched cutout positioned on a boundary edge of the reed and wherein a portion of the arched cutout has the same radius of curvature as a radius of curvature of the reed mounting opening;
• and
• a backer having a backer mounting feature and a backer antirotation feature sized and shaped to engage with the reed antirotation feature preventing rotation between the reed and the backer, wherein the reed and the backer are mounted to the compressor by a fastener extending through the reed mounting opening, the backer mounting feature, and into the compressor mounting opening.

A method of assembly comprising:

• providing a reed;
• forming a single reed mounting opening in the reed;
• forming an antirotation slot in the reed, the antirotation slot including an arched cutout positioned on a boundary edge of the reed, wherein a portion of the arched cutout has the same radius of curvature as a radius of curvature of the reed mounting opening;
• providing a backer having an antirotation protrusion sized to engage with the reed antirotation slot and a single backer mounting opening;
• forming a single compressor mounting opening in a surface of the compressor;
• and
• forming a compressor antirotation opening in the surface of the compressor, wherein the compressor antirotation opening is sized to receive the backer antirotation protrusion.