Expansion valve control
US5329462A · kind A · utility
8Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Dec 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A control for the expansion valve of an air conditioning system interrupts a decision to deactivate one or more stages of compression and proceeds to calculate a new expansion valve position based upon the amount of capacity to be lost by the deactivated stages of compression. The expansion valve is commanded to the calculated position before the compressors are deactivated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.