Multiple orifice expansion device
US6272869A · kind A · utility
4Cited by
25References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An expansion device in a refrigeration chiller defines at least two fixed orifices and employs at least two positionable valve members in order to minimize the overall flow area through the expansion device under a first set of chiller operating conditions, to maximize the overall flow area through the expansion device under a second set of chiller operating conditions and to define a flow area intermediate said minimum and said maximum flow areas when a third set of chiller operating conditions exist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.