Patent ID: 11959673
Assignee: CARRIER CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A refrigeration system comprising:
a compressor for compressing a refrigerant, the compressor having a first inlet and a second inlet, separate from the first inlet;
a condenser for cooling the refrigerant;
an evaporator for heating the refrigerant, the evaporator being fluidly connected to the first inlet of the compressor; and
a lubrication system for providing a lubricant mist to a movable component of the compressor, the lubricant mist being carried by the refrigerant to the movable component, the lubrication system including:
a first ejector arranged in fluid communication with the second inlet of the compressor and with the evaporator, wherein a stream of refrigerant is expelled from the first ejector and the stream of refrigerant has droplets of lubricant entrained therein;
a tank, wherein the stream of refrigerant having droplets of lubricant entrained therein is provided to the tank; and
a secondary ejector arranged in fluid communication with the compressor and the tank, wherein the secondary ejector has a primary inlet and a secondary inlet, the primary inlet of the secondary ejector is coupled to the outlet of the compressor such that the refrigerant output from the compressor is a motive fluid of the secondary ejector.