Patent US3877515A successfully refreshed from Google Patents.
US3877515A
Expired / Lapsed
US
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Temperature-control system with rotary heat exchangers
Assignee: Individual
•
Filing: 1972-09-05
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Granted: 1975-04-15
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Expires: 1992-09-05
Abstract
Abstract An independently heated or cooled room is linked with an environment of different temperature through a fluid-circulation system including a closed path traversed by a heat-carrier medium. The medium travels between two heat exchangers, respectively located in the warmer and in the colder air, under a pressure differential low enough to maintain a coherent flow at substantially uniform speed in one or more pairs of channels extending between the two heat exchangers.
Inventors
- 👤 Nikolaus Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:38
CPC Classifications
F; F28; F28D; F28D15/00; F24; F24F; F24F12/00; F24F12/001; F24F12/002; F25; F25B; F25B29/00; F25B3/00; F28D11/00; F28D11/02; F28D11/04; F24F12/003; Y; Y02; Y02B; Y02B30/00; Y02B30/56
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
184 words
A temperature-control system for a space provided with means for maintaining a first fluid therein at a temperature differing substantially from that of a second fluid in an adjoining environment, comprising: a first rotary heat exchanger centered on an axis and exposed to said first fluid in said space; a second rotary heat exchanger centered on said axis and exposed to said second fluid in said adjoining environment, each of said heat exchangers including a set of peripherally spaced tubes parallel to said axis, the tubes of each set being disposed along at least one segment of an archimedean spiral to define a hollow blade; drive means coupled with said heat exchangers for rotating same about said axis; sealed conduit means including said tubes forming a closed path for a heat-carrier medium abstracting heat from the warmer one of said fluids and giving off heat to the colder one of said fluids; and forced-circulation means in said path for driving said medium through said conduit means under a pressure maintaining a coherent flow of said medium at substantially uniform speed between said heat exchangers.
Claim 2
Dependent Claim
184 words
A temperature-control system for a space provided with means for maintaining a first fluid therein at a temperature differing substantially from that of a second fluid in an adjoining environment, comprising: a first rotary heat exchanger centered on an axis and exposed to said first fluid in said space; a second rotary heat exchanger centered on said axis and exposed to said second fluid in said adjoining environment, each of said heat exchangers including a set of peripherally spaced tubes parallel to said axis, the tubes of each set being disposed along at least one segment of an archimedean spiral to define a hollow blade; drive means coupled with said heat exchangers for rotating same about said axis; sealed conduit means including said tubes forming a closed path for a heat-carrier medium abstracting heat from the warmer one of said fluids and giving off heat to the colder one of said fluids; and forced-circulation means in said path for driving said medium through said conduit means under a pressure maintaining a coherent flow of said medium at substantially uniform speed between said heat exchangers.
Claim 3
Independent Claim
30 words
A system as defined in claim wherein the tubes of each heat exchanger are divided into a plurality of concentric tiers interconnected in cascade for successive traversal by said medium.
Claim 4
Dependent Claim
26 words
A system as defined in claim 1 wherein each of said tubes is longitudinally subdivided into two parallel conduits traversed by said medium in opposite directions.
Claim 5
Dependent Claim
47 words
A system as defined in claim 3 wherein said heat exchangers are axially spaced apart and provided with a common shaft, said conduit means including axially extending channels in said shaft and manifolds connecting the conduits of the tubes of each tier with a respective channel pair.
Claim 6
Dependent Claim
21 words
A system as defined in claim 4 wherein said channel pairs are formed by peripherally offset sectoral passages in said shaft.
Claim 7
Dependent Claim
38 words
A system as defined in claim 1 wherein said tubes are provided with closely spaced transerse fins entraining the surrounding fluid by shear force and imparting thereto a centrifugal acceleration proportional to the speed of said drive means.
Claim 8
Dependent Claim
34 words
A system as defined in claim 6 wherein the pitch of said archimedean spiral is correlated with the speed of said drive means to exert substantially no reaction upon the centrifugally accelerated fluid flow.
Claim 9
Dependent Claim
22 words
A system as defined in claim 6 wherein said fins are annular and common to all the tubes of a heat exchanger.
Claim 10
Dependent Claim
227 words
A temperature-control system for a space provided with means for maintaining a first fluid therein at a temperature differing substantially from that of a second fluid in an adjoining environment, comprising: a first rotaty heat exchanger centered on an axis and exposed to said first fluid in said space; a second rotary heat exchanger centered on said axis and exposed to said second fluid in said adjoining environment; drive means coupled with said heat exchangers for rotating same about said axis, each of said heat exchangers including a set of peripherally spaced hollow blades parallel to said axis and a multiplicity of closely spaced transverse fins entraining the surrounding fluid by shear force and imparting theReto a centrifugal acceleration proportional to the speed of said drive means; sealed conduit means including said hollow blades forming a closed path for a heat-carrier medium abstracting heat from the warmer one of said fluids and giving off heat to the colder one of said fluids, said blades defining at least one segment of an archimedean spiral whose pitch is correlated with the speed of said drive means to exert substantially no reaction upon the centrifugally accelerated fluid flow; and forced-circulation means in said path for driving said medium through said conduit means under a pressure maintaining a coherent flow of said medium at substantially uniform speed between said heat exchangers.
Claim 11
Dependent Claim
227 words
A temperature-control system for a space provided with means for maintaining a first fluid therein at a temperature differing substantially from that of a second fluid in an adjoining environment, comprising: a first rotaty heat exchanger centered on an axis and exposed to said first fluid in said space; a second rotary heat exchanger centered on said axis and exposed to said second fluid in said adjoining environment; drive means coupled with said heat exchangers for rotating same about said axis, each of said heat exchangers including a set of peripherally spaced hollow blades parallel to said axis and a multiplicity of closely spaced transverse fins entraining the surrounding fluid by shear force and imparting theReto a centrifugal acceleration proportional to the speed of said drive means; sealed conduit means including said hollow blades forming a closed path for a heat-carrier medium abstracting heat from the warmer one of said fluids and giving off heat to the colder one of said fluids, said blades defining at least one segment of an archimedean spiral whose pitch is correlated with the speed of said drive means to exert substantially no reaction upon the centrifugally accelerated fluid flow; and forced-circulation means in said path for driving said medium through said conduit means under a pressure maintaining a coherent flow of said medium at substantially uniform speed between said heat exchangers.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |