Furnace heat exchanger coupling
US9631877B2 · kind B2 · utility
0Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2011 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A coupling to connect a primary heat exchanger to a condensing heat exchanger of a furnace includes a coupling box extending between a primary heat exchanger and a condensing heat exchanger. The coupling box defines a flow path for flue gas between a primary heat exchanger outlet and a condensing heat exchanger inlet. A tube sheet is located at a distance from the tube sheet in the coupling box. The liner and the tube sheet define an insulating liner space therebetween reducing condensation on the liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.