Abstract: A scroll-type compressor assembly means has one or multiple positioning holes provided on a positioning post of the frame, and a positioning element to fix a retaining spacer to the frame for the retaining spacer to limit the stationary scroll and to define an ideal spacing between the positioning post and the stationary scroll; the ideal spacing not affected by the locking location of the positioning element to the positioning post that is far away from the ideal spacing or the stationery scroll for assurance of assembly quality of the compressor and prevention of operation noise or frustrated operation due to unpredictable change or narrowed ideal spacing between the positioning post and stationary scroll because that the positioning post is deformed.

Abstract: A backpressure mechanism for a scroll type compressor to effectively prevent leakage of coolant; a recessed seat being provided at the top of a coolant passage at the center of a fixed scroll; a ring groove being disposed on the outer circumference of the recessed seat; a high-pressure sealing assembly comprised of a high-pressure ring, a sealing device and a high pressure ring seat and a medium-pressure sealing assembly comprised of a medium-pressure ring, a sealing device and a medium-pressure ring seat being respectively provided to the recessed seat and the ring groove; pressure from the compressed coolant causing an axially compromising vacuum unloading function to float the both sealing assemblies.

Abstract: A backpressure mechanism for a scroll type compressor to effectively prevent leakage of coolant; a recessed seat being provided at the top of a coolant passage at the center of a fixed scroll; a ring groove being disposed on the outer circumference of the recessed seat; a high-pressure sealing assembly comprised of a high-pressure ring, a sealing device and a high pressure ring seat and a medium-pressure sealing assembly comprised of a medium-pressure ring, a sealing device and a medium-pressure ring seat being respectively provided to the recessed seat and the ring groove; pressure from the compressed coolant causing an axially compromising vacuum unloading function to float the both sealing assemblies.

Abstract: The present invention mainly includes a valve cock and a valve cock cover to form a structure of check valve, of which a trepan boring is set on the cover to accommodate the valve cock, and a pressure guide hole is set on the cover body to connect the high-pressure and valve cock trepan boring. A blast groove is set on the binding surface of the valve cock cover and shielding seat to release refrigerant. The valve cock is pressed against the vent hole of the shielding seat under the effect of the high-pressure chamber, and then the high-pressure refrigerant is blocked from flowing back into the low-pressure chamber. However, the high-pressure refrigerant will directly eject upward against the valve cock when the rotating turbine and fixed whirl run mutually, in addition the high-pressure refrigerant will flow into the high-pressure chamber via the blast groove.

Abstract: A lubricant filling device for a scroll compressor has provided a lubricant suction on the circulating scroll connecting through the side of the sleeve to the scroll space; a negative pressure suction being formed due to changed volume in the scroll chamber once the circulating scroll and the fixed scroll chamber are operating, so to directly suck the lubricant seeping through where between the eccentric rod and the sleeve to lubricate the circulating scroll and the fixed scroll chamber in time for improving the lubrication results for the compressor.