US4093022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Individual
•
Filing: 1977-05-02
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Granted: 1978-06-06
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Expires: 1997-05-02
Abstract
Abstract As shown in an embodiment of the invention as depicted, the heat exchanger comprises a cylindrical chamber into which, and from which heated fluid, such as the combustion gas product from a furnace, is conducted. The chamber confines therewithin a plurality of axially-extending tubes, and ducting admits ambient air to and from the tubes. Accordingly, the heated fluid and the ambient air are indirectly heat-exchanged. The chamber is fixed within an enclosure or housing, except that an axially-extending portion of the chamber is left exposed, in order that the heated-fluid input and discharge can be effected directly to and from the chamber. The housing forms a compartment alongside of the chamber, and to a given side thereof, which compartment causes the ambient air to cycle or pump through the tubes and compartment, prior to any substantial air-discharge, to generate an improved draft or current flow in the heat exchanger.
Inventors
- 👤 George Polyak, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:21
CPC Classifications
F; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28D21/0005; F28D21/0008; Y; Y10; Y10S; Y10S165/00; Y10S165/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
279 words
A heat exchanger, comprising: a cylindrical chamber having a vertical, elongate axis; said chamber being closed at opposite axial ends thereof; first means for admitting a heated fluid into said chamber, in a first direction transverse to said axis, adjacent one end of said chamber; second means, adjacent an end of said chamber which is opposite said one end, for discharging such fluid from said chamber in a second direction transverse to said axis; conduit means fixed in and substantially uniformly distributed within said chamber and extending axially thereof; said conduit means opening only outwardly of said one and opposite ends of said chamber; third means for admitting ambient air into said conduit means; and fourth means for discharging air from said conduit means; wherein said third and fourth means comprise a housing which substantially envelops said chamber; said housing having a substantially cylindrical wall which terminates in a closed end wall; said end wall being adjacent to, but spaced apart from, said one end of said chamber; and said wall has a portion thereof which defines a compartment means cooperative with said fluid admitting and discharging means and said air admitting and discharging means to cause ambient air repetitively to cycle or pumpingly circulate through said conduit means and said compartment means; said portion of said wall is eccentric relative to said chamber and cooperates with said chamber to define said compartment means of a uniform, crescent-shaped cross-section; and wherein said air discharging means communicates with said compartment means, and comprises means for discharging air from said compartment means in said first direction from a side of said heat exchanger which is opposite said first and second means.
Claim 2
Dependent Claim
279 words
A heat exchanger, comprising: a cylindrical chamber having a vertical, elongate axis; said chamber being closed at opposite axial ends thereof; first means for admitting a heated fluid into said chamber, in a first direction transverse to said axis, adjacent one end of said chamber; second means, adjacent an end of said chamber which is opposite said one end, for discharging such fluid from said chamber in a second direction transverse to said axis; conduit means fixed in and substantially uniformly distributed within said chamber and extending axially thereof; said conduit means opening only outwardly of said one and opposite ends of said chamber; third means for admitting ambient air into said conduit means; and fourth means for discharging air from said conduit means; wherein said third and fourth means comprise a housing which substantially envelops said chamber; said housing having a substantially cylindrical wall which terminates in a closed end wall; said end wall being adjacent to, but spaced apart from, said one end of said chamber; and said wall has a portion thereof which defines a compartment means cooperative with said fluid admitting and discharging means and said air admitting and discharging means to cause ambient air repetitively to cycle or pumpingly circulate through said conduit means and said compartment means; said portion of said wall is eccentric relative to said chamber and cooperates with said chamber to define said compartment means of a uniform, crescent-shaped cross-section; and wherein said air discharging means communicates with said compartment means, and comprises means for discharging air from said compartment means in said first direction from a side of said heat exchanger which is opposite said first and second means.
Claim 3
Dependent Claim
36 words
A heat exchanger, according to claim 1, wherein: said air discharging means is in direct fluid-flow communication with said compartment means, and said fluid admitting and discharging means are in direct fluid-flow communication with said chamber.
Claim 4
Dependent Claim
41 words
A heat exchanger, according to claim 1, wherein: said air discharging means comprises a duct; and said duct opens onto said compartment means, adjacent said one end of said chamber, whereat said crescent-shaped cross-section is of greatest width or cross-sectional dimension.
Claim 5
Dependent Claim
28 words
A heat exchanger, according to claim 3, further including: means disposed within said chamber, intermediate said one and opposite ends thereof, for baffling flow of heated fluid therethrough.
Claim 6
Dependent Claim
61 words
A heat exchanger, according to claim 4, wherein: said baffling means comprises a substantially circular plate; said chamber has a given inside diameter; and said plate has an outside diameter which is less than said given diameter, and is disposed within said chamber normal to the axis of said chamber to define between said chamber and said plate an annular void.
Claim 7
Dependent Claim
48 words
A heat exchanger, according to claim 4, wherein: said baffling means comprises a plurality of concentric rings; said rings of said plurality having dimensions which dispose each thereof is spaced-apart disposition from another thereof; and each of said rings is disposed normal to the axis of said chamber.
Claim 8
Dependent Claim
56 words
A heat exchanger, according to claim 5, wherein: said fluid admitting means comprises a fluid inlet duct, and a fluid outlet duct; said ducts are of common cross-section; and said void comprises a cross-sectional area which is not less than said common cross-section, to insure that fluid flow through said chamber will not be unduly throttled.
Claim 9
Dependent Claim
27 words
A heat exchanger, according to claim 4, further including: air-moving, motor means operatively coupled to one of said air admitting and discharging means, for moving air therethrough.
Claim 10
Dependent Claim
27 words
A heat exchanger, according to claim 8, further including: temperature-sensing means operatively coupled to said compartment means and to said motor means for energizing said motor means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |