Patent US5233756A successfully refreshed from Google Patents.
US5233756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a heat exchanger having a tubular manifold with transverse baffles
Assignee: Valeo Thermique Moteur SA
•
Filing: 1992-05-13
•
Granted: 1993-08-10
•
Expires: 2012-05-13
Abstract
Abstract In a heat exchanger of the kind suitable for use as a condenser in a motor vehicle air conditioning installation, a manifold has a cylindrical tubular wall and is divided into compartments by means of baffles, which are introduced through an open end of the tubular wall. Heat exchange tubes extend into the compartments of the manifold through apertures formed in the tubular wall. After the baffles have been slid into place within the tubular wall, deformations are formed in the tubular wall so as to retain the baffles in place, prior to insertion of the heat exchange tubes and brazing to secure the components of the assembly sealingly together.
Inventors
- 👤 Philippe Le Gauyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:37
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0209; F28F9/0212; F28F2275/00; F28F2275/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373; Y10T29/49389; Y10T29/49398
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A method of making a heat exchanger comprising at least one manifold having a tubular wall defining a plurality of apertures through the said tubular wall, at least one transverse baffle dividing the interior of the manifold into a plurality of separate compartments, and a multiplicity of parallel heat exchange tubes each extending through a said aperture so as to communicate with a said compartment of the manifold, wherein the method includes the steps of introducing each baffle into the interior of the tubular wall through an open end of the latter so as to locate it in place, and deforming the tubular wall on either side of the baffle after it has been introduced so as to retain the latter in position.
Claim 2
Independent Claim
123 words
A method of making a heat exchanger comprising at least one manifold having a tubular wall defining a plurality of apertures through the said tubular wall, at least one transverse baffle dividing the interior of the manifold into a plurality of separate compartments, and a multiplicity of parallel heat exchange tubes each extending through a said aperture so as to communicate with a said compartment of the manifold, wherein the method includes the steps of introducing each baffle into the interior of the tubular wall through an open end of the latter so as to locate it in place, and deforming the tubular wall on either side of the baffle after it has been introduced so as to retain the latter in position.
Claim 3
Dependent Claim
40 words
A method according to claim 1, further including the step of closing the ends of the tubular wall by means of supplementary transverse baffles, and similarly deforming the tubular wall so as to retain the supplementary baffles in position therein.
Claim 4
Dependent Claim
20 words
A method according to claim 1, wherein the step of deforming the tubular wall comprises deforming it into the manifold.
Claim 5
Dependent Claim
32 words
A method according to claim 1, further including the step of brazing the tubular wall to at least one of the components comprising the or each baffle and the heat exchange tubes.
Claim 6
Dependent Claim
31 words
A method according to claim 4, further comprising providing at least one of the components to be brazed with a fusible metallic coating, the brazing step comprising melting the said coating.
Claim 7
Dependent Claim
64 words
A method according to claim 1, in which, before the step of deforming the tubular wall, the latter has an irregular internal profile surrounding the baffle and defining between the wall and the baffle a gap extending over a substantial proportion of its perimeter, the step of deforming the tubular wall comprising bringing it into substantial contact with the baffle over its whole perimeter.
Claim 8
Dependent Claim
29 words
A method according to claim 6, in which the tubular wall comprises a rolled metal strip defining two opposed edges joined together along a generatrix of the tubular wall.
References Cited (Backward Citations)
FR2592147A1
Cited
JPS63167088A
Cited
EP0377936A1
Cited
US5097900A
Cited
US5052478A
Cited
US4960169A
Cited
US5119552A
Cited
US5107926A
Cited
US5125454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |