Multichannel heat exchanger with improved flow distribution
US8439104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | May 7, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2210/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided that include multichannel tube configurations designed to reduce refrigerant pressure drop through a heat exchanger manifold. In certain embodiments, tubes inserted within the manifold adjacent to a refrigerant inlet have non-rectangular or recessed end profiles configured to increase flow area near the inlet, thereby reducing a pressure drop through the manifold. In further embodiments, insertion depths of the tubes within the manifold vary based on distance from the inlet. This configuration may establish a larger flow area adjacent to the inlet, thus reducing the pressure drop and increasing heat exchanger efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.