Patent ID: 7510382

Claim:
An apparatus for preventing overheating of a scroll compressor in which an orbiting scroll engaging with a fixed scroll in a casing makes an orbiting movement to compress a gas, the apparatus comprising: a first connection flow path for communicating a high pressure space and a low pressure space in the casing; a second connection flow path for communicating the first connection flow path and the low pressure space in the casing; a fluid refrigerant inflow guide pipe for guiding fluid refrigerant from a refrigeration cycle system to flow into the low pressure space via the second connection flow path by connecting the refrigeration cycle system with the second connection flow path; a second connection flow path valve coupled to an inside of the first connection flow path, for opening/closing the second connection flow path in accordance with a pressure difference between the low pressure space and the high pressure space; and a temperature sensing type valve coupled to an inside of the first connection flow path, for opening/closing the first connection flow path according to a temperature in the high pressure space, wherein the second connection flow path valve comprises: a valve spool slidable along a bore of the first connection flow path, for opening/closing the second connection flow path, and wherein the temperature sensing type valve is configured to open the first connection flow path when the temperature in the high pressure space exceeds a predetermined temperature such that a high pressure in the high pressure space pushes the valve spool along the bore of the first connection flow path to align a flow path in the valve spool with the fluid refrigerant inflow guide pipe and open the second communication flow path.