Air conditioner
US5357766A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Apr 20, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/16
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed is an air conditioner of the present invention comprises a refrigeration cycle using a refrigerant compressor, a four-way valve, an external heat exchanger, an expansion device, and an internal heat exchanger in such a manner that these components are separately mounted in an external unit and an internal unit, wherein the external heat exchanger is mounted on the external unit; the internal heat exchange is mounted in the internal unit; both of the heat exchangers mounted in the units are connected to each other by means of a refrigerant piping to form the refrigeration cycle; and a control means is provided for changing the expansion amount of the expansion device according to the length of the refrigerant piping thereby adjusting the high-low pressure difference in the refrigeration cycle. With this construction, it is possible to carry out the optimal operation even for the longer refrigerant piping without making the size of each unit larger and enhancing the ability of each component of the refrigeration cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.