Apparatus for sampling the purity of refrigerant in the storage container of a refrigerant recovery and purification system
US5214931A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B45/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Apparatus for recovering compressible refrigerant from a refrigeration system, purifying the recovered refrigerant, and testing the purity of the recovered purified refrigerant which includes a compressor, a condenser, a refrigerant storage means and a refrigerant purification means all connected in serial fluid communication. Means are provided for operably supporting a refrigerant purity sampling system in parallel fluid flow relationship with the compressor. The system is adapted to operate in a refrigerant recovery mode wherein refrigerant is withdrawn from a refrigeration system being serviced. This system is also capable of operating in a refrigerant purification mode wherein the refrigerant withdrawn from the refrigeration system is continually circulated through the circuit to provide multiple passes through the purification system. And a further refrigerant purity test mode of operation is provided wherein refrigerant from the storage cylinder is passed directly to a refrigerant purity sampling tube. This mode passes the refrigerant purifying means to thereby assure that the refrigerant being tested for purity is representative of the refrigerant stored in the storage cont…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.