Apparatus and method for charging three-component mixed refrigerant
US5711158A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Apr 29, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2345/004
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides an apparatus for charging a three-component mixed refrigerant substitutable for R22 or R502 and a method for charging the three-component mixed refrigerant. A high-boiling point refrigerant container and a metering device for the high-boiling point refrigerant and a container for an azeotrope-like mixed refrigerant lower in boiling point than said high-boiling point refrigerant and a metering device for the azeotrope-like mixed refrigerant are connected to one pipe line having a refrigerant charging port, and a given amount of the high-boiling point refrigerant and a given amount of the lower boiling point azeotrope-like mixed refrigerant are metered and charged in this order in a heat pump apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.