Compressor unloading device

摘要

A refrigerant compressor system including a prime mover, a compressor, and an unloader device that couples the compressor to the prime mover. The unloading device includes a centrifugal clutch and an electric clutch.

主权项

1. A transport refrigeration system comprising:
a prime mover; a compressor configured to compress a refrigerant; and an unloader device selectively coupling the compressor to the prime mover, the unloader device including a first clutch mechanism and a second clutch mechanism configured to operate independently from the first clutch mechanism, wherein the first clutch mechanism and the second clutch mechanism are coupled in series between the prime mover and the compressor, wherein the prime mover drives the compressor when the prime mover is running and the first clutch mechanism and the second clutch mechanism are each engaged, and wherein the prime mover is unable to drive the compressor when at least one of the first clutch mechanism and the second clutch mechanism is disengaged.