US3983935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: L APPAREILLAGE THERMIQUE
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Filing: 1975-01-16
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Granted: 1976-10-05
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Expires: 1995-01-16
Abstract
Abstract The exchanger comprises first passageways for the flow of a first fluid to be heated, such as air, and second passageways between the first passageways for the heating fluid. The lateral walls of the passageways constitute the heat exchange walls and have corrugations which define a plurality of enlarged parts in the passageways. Baffles are disposed in each of the enlarged parts. Each baffle is constituted by a tube which is disposed transversely of the direction of flow of the fluid and has open end portions which extend through the lateral walls into a neighboring passageway and open onto said neighboring passageway so as to constitute a by-pass for a portion of the fluid flowing in said neighboring passageway.
Inventors
- 👤 Charles Emile Henrion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:30
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0062; F28F; F28F13/00; F28F13/06; F28F2250/00; F28F2250/06; F28F2250/10; F28F2250/104; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/395
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
162 words
A heat exchanger for in particular employing heat carried along by a first fluid for heating a second fluid such as air, comprising lateral wall means defining first passageways for the flow of the second fluid and second passageways for the flow of the first fluid, the first passageways being separated by the second passageways, the lateral wall means of said passageways constituting the heat exchange walls of the exchanger and having corrugations which define a plurality of enlarged parts in said passageways, and a baffle disposed in each of said enlarged parts, each one of the baffles located in a passageway being constituted by a tube which is disposed transversely of the direction of the flow of the fluid in said passageway and has open end portions which extend through said lateral wall means into a neighbouring passageway and open onto said neighbouring passageway so as to constitute a by-pass for a portion of the fluid flowing in said neighbouring passageway.
Claim 2
Dependent Claim
162 words
A heat exchanger for in particular employing heat carried along by a first fluid for heating a second fluid such as air, comprising lateral wall means defining first passageways for the flow of the second fluid and second passageways for the flow of the first fluid, the first passageways being separated by the second passageways, the lateral wall means of said passageways constituting the heat exchange walls of the exchanger and having corrugations which define a plurality of enlarged parts in said passageways, and a baffle disposed in each of said enlarged parts, each one of the baffles located in a passageway being constituted by a tube which is disposed transversely of the direction of the flow of the fluid in said passageway and has open end portions which extend through said lateral wall means into a neighbouring passageway and open onto said neighbouring passageway so as to constitute a by-pass for a portion of the fluid flowing in said neighbouring passageway.
Claim 3
Dependent Claim
74 words
A heat exchanger as claimed in claim 1, wherein each of said baffles has a take off end for taking off said portion of fluid flowing in said neighbouring passageway and an end for restoring said portion said portion of fluid to the rest of the stream of fluid flowing in said neighbouring passageway, said take off and restoring ends opening into said neighbouring passageway between two successive enlarged parts of said neighbouring passageway.
Claim 4
Dependent Claim
137 words
A heat exchanger as claimed in claim 1, wherein each of said baffles has a take off end for taking off said portion of fluid flowing in said neighbouring passageway and an end for restoring said portion of fluid to the rest of the stream of fluid flowing in said neighbouring passageway, a first of said end portions of each baffle is constituted by a horizontal bent portion of the baffle having its end terminating on a bevel and defining said take-off end for facing the stream of fluid flowing in said neighbouring passageway, and the other of said end portions of the baffle is constituted by a horizontal bent portion of the baffle having its end terminating on a bevel with an inclination opposite to that of said first end portion and defining said restoring end.
Claim 5
Dependent Claim
112 words
A heat exchanger as claimed in claim 1, wherein each of said baffles has a take off end for taking off said portion of fluid flowing in said neighbouring passageway and an end for restoring said portion of fluid to the rest of the stream of fluid flowing in said neighbouring passageway, the take-off end of each baffle is defined by an oblique bent first portion of the baffle and the restoring end of the baffle is defined by an oblique bent second portion of the baffle, said oblique portions being connected to said neighbouring passageway between two consecutive enlarged parts of the neighbouring passageway in inclined portions of said wall means.
Claim 6
Dependent Claim
56 words
A heat exchanger as claimed in claim 1, wherein said passageways in which said second fluid flows are constituted by box structures having corrugated lateral wall means which constitute said heat exchange and separating wall means between the passageways, said passageways in which said first fluid flows being constituted by spaces provided between said box structures.
Claim 7
Dependent Claim
49 words
A heat exchanger as claimed in claim 5, comprising a case in which case said box structures are mounted, inlet and outlet pipes for said second fluid connected to said box structures and inlet and outlet pipes for said first fluid connected to said spaces between said box structures.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |