High efficiency, small volume evaporator for a refrigerant
US5622219A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1994 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Oct 24, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0085
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A highly efficient parallel flow evaporator is provided by combining a pair of identical units (10), (12) wherein each includes a pair of identical, parallel, spaced headers (40) each having slots (44) receiving the ends of identical flattened tubes (22). Identical tanks (42) are bonded to each of the headers (40) and each has an identical central flat surface (52) and an identical, centrally located port (60). Fins (26) extend between adjacent tubes (22) in each unit (10), (12) and an inlet/outlet fixture (32) is bonded to the flat surfaces (52) of one pair of tanks (42) defined by adjacent tanks (42) of both of the units (10),(12). A cross-over fixture (30) is bonded to the flat surfaces (52) of the other pair of tanks (42) defined by the remaining tanks (42) of both of the units (10),(12). The invention minimizes the number of geometrically different parts, provides an improved distributor (140) for refrigerant, provides an improved inlet passage (108) that provides a uniform stream of refrigerant to the distributor (140) and provides for the direction of refrigerant emanating from the cross-over fixture (30) in a direction parallel to the tubes (22) for improved uniformity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.