Spiral compressor with guides for fixing the spiral element against rotation

A spiral compressor, comprising a first housing portion having a spiral chamber;

• a second housing portion closing said first portion;
• a displacement element displaceably supported between said first and second portions, said element having a spiral wall extending into said spiral chamber and enclosing with said spiral chamber an outer suction chamber and an inner high pressure chamber;
• a drive shaft;
• an eccentric carried on one end of said shaft and supported in said displacement element;
• and means for fixing said element against rotation, said means including at least three guides (30) spaced from each other along a periphery of said element at equal angles and arranged in a plane perpendicular to said drive shaft, said element having pocket bores (32);
• each guide (31) including a guide bearing (33) positioned in a respective pocket bore of said element and extending into and being fastened to said second housing portion, a plastic sleeve (35) inserted in a respective pocket bore under slight prestressing with interposition of two rubber elastic O-rings spaced from each other, an inner diameter of said plastic sleeve being smaller than a sum of the diameter of said guide bearing and the diameter of said eccentric.