Patent ID: 6077045
Filing Date: 2000-06-20
Classification: F04C

Abstract:
A scroll-type compressor comprising a housing, and a fixed scroll and a revolving scroll in the housing, each scroll comprising an end plate and a spiral lap built on an inner surface of the end plate, said inner surface facing the other end plate, wherein:the fixed and revolving scrolls are engaged with each other so as to form a plurality of compression chambers;a discharge cavity is limitedly provided by an outer surface of the end plate of the fixed scroll and the housing;a discharge port is opened in a central area in the end plate of the fixed scroll; anda gas compressed by the compression chambers is discharged via the discharge port and the discharge cavity by revolving the revolving scroll, andthe scroll-type compressor further comprising:two thermocouples, the contact point of one thermocouple being with a central portion of the end plate of the fixed scroll, while the contact point of the other thermocouple being with the housing; andmeans for terminating the operation of the scroll-type compressor when a difference between temperature values detected by the thermocouples reaches a predetermined value.