초록 ▼

The present invention provides a refrigeration or heating system which includes a high pressure gaseous refrigerant bypass which introduces high pressure gaseous refrigerant to the compressor through a hole therein. This reintroduction of high pressure gaseous refrigerant increases the work capacity

The present invention provides a refrigeration or heating system which includes a high pressure gaseous refrigerant bypass which introduces high pressure gaseous refrigerant to the compressor through a hole therein. This reintroduction of high pressure gaseous refrigerant increases the work capacity of the compressor, which is particularly valuable in the heating mode where the ambient temperature is low, and also hastens the pressure rising characteristics of the compressor. A low pressure gaseous refrigerant bypass to the compressor may also be provided for permitting a portion of the compressed refrigerant in the compressor to be discharged, thereby reducing the danger of overheating of the compressor. A further feature of the invention is the introduction of low enthalpy refrigerant into the compressor which will also cool an overheated compressor. Appropriate control means are provided for controlling the flow of refrigerant through the bypasses.

대표청구항 ▼

A refrigeration system of the type including a compressor, a condenser, an expansion device, an evaporator and interconnection means connected to form a refrigerant flow path therethrough wherein said system further comprises a gaseous refrigerant bypass between a high pressure zone of said system a

A refrigeration system of the type including a compressor, a condenser, an expansion device, an evaporator and interconnection means connected to form a refrigerant flow path therethrough wherein said system further comprises a gaseous refrigerant bypass between a high pressure zone of said system and said compressor through which a portion of the refrigerant from said high pressure gaseous refrigerant zone in said system, said zone including said condenser, is to be injected into said compressor, wherein said gaseous refrigerant bypass has one end connected to the compression chamber of said compressor and the second end in communication with the high pressure gaseous refrigerant zone including said condenser, and a portion of high pressure gaseous refrigerant from the second end is to be injected into said compression chamber of said compressor through said second end.