Flowing pool shell and tube evaporator
US6516627B2 · kind B2 · utility
40Cited by
11References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2339/0242
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An evaporator for a refrigeration chiller includes a tube bundle in which at least a portion of the tubes of the tube bundle are immersed in a pool which include both liquid refrigerant and is lubricant. Liquid refrigerant and lubricant are deposited into the pool at a first pool location. Because of the vaporization of refrigerant that occurs within the pool, a pattern of flow is established and managed that causes the lubricant in the pool to migrate from the location of its deposit into the pool to a second pool location. An outlet is provided at the second pool location from which lubricant is drawn out of the evaporator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.