CA2029547A1 - Compact, high efficiency heat exchanger for a fuel-fired forced air heating furnace - Google Patents
Compact, high efficiency heat exchanger for a fuel-fired forced air heating furnaceInfo
- Publication number
- CA2029547A1 CA2029547A1 CA 2029547 CA2029547A CA2029547A1 CA 2029547 A1 CA2029547 A1 CA 2029547A1 CA 2029547 CA2029547 CA 2029547 CA 2029547 A CA2029547 A CA 2029547A CA 2029547 A1 CA2029547 A1 CA 2029547A1
- Authority
- CA
- Canada
- Prior art keywords
- heat exchanger
- compact
- fuel
- tubes
- high efficiency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A compact, high efficiency heat exchanger for a fuel-fired forced air furnace has horizontally spaced apart inlet and outlet manifold structures which are innerconnected by a horizontally spaced series of vertically serpentined, relatively small diameter flow transfer tubes.
Larger diameter inlet flow tubes are positioned beneath the balance of the heat exchanger, extend parallel to the transfer tubes, and have upturned discharge ends connected to the underside of the inlet manifold. The heat exchanger is configured so that its total vertically facing peripheral surface area is considerably larger than its total horizontally facing peripheral surface area, thereby significantly reducing undesirable outward heat loss through the vertically extending furnace housing side walls upon burner shut off and increasing the overall efficiency rating of the furnace. To reduce the manufacturing cost of the heat exchanger its components are assembled using a weldless fabrication process which includes swedging the tubes to the manifolds and forming each manifold from two sections which are edge rolled and crimped together.
A compact, high efficiency heat exchanger for a fuel-fired forced air furnace has horizontally spaced apart inlet and outlet manifold structures which are innerconnected by a horizontally spaced series of vertically serpentined, relatively small diameter flow transfer tubes.
Larger diameter inlet flow tubes are positioned beneath the balance of the heat exchanger, extend parallel to the transfer tubes, and have upturned discharge ends connected to the underside of the inlet manifold. The heat exchanger is configured so that its total vertically facing peripheral surface area is considerably larger than its total horizontally facing peripheral surface area, thereby significantly reducing undesirable outward heat loss through the vertically extending furnace housing side walls upon burner shut off and increasing the overall efficiency rating of the furnace. To reduce the manufacturing cost of the heat exchanger its components are assembled using a weldless fabrication process which includes swedging the tubes to the manifolds and forming each manifold from two sections which are edge rolled and crimped together.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US559,624 | 1990-07-27 | ||
| US07/559,624 US5042453A (en) | 1989-09-28 | 1990-07-27 | Compact, high efficiency heat exchanger for a fuel-fired forced air heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2029547A1 true CA2029547A1 (en) | 1992-01-28 |
| CA2029547C CA2029547C (en) | 1994-03-29 |
Family
ID=24234341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2029547 Expired - Lifetime CA2029547C (en) | 1990-07-27 | 1990-11-09 | Compact, high efficiency heat exchanger for a fuel-fired forced air heating furnace |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2029547C (en) |
| MX (1) | MX9100372A (en) |
-
1990
- 1990-11-09 CA CA 2029547 patent/CA2029547C/en not_active Expired - Lifetime
-
1991
- 1991-07-25 MX MX9100372A patent/MX9100372A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX9100372A (en) | 1992-02-28 |
| CA2029547C (en) | 1994-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKEC | Expiry (correction) |
Effective date: 20121202 |