US3779310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency heat transit system
Assignee: Coe Manufacturing Co
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Filing: 1971-04-05
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Granted: 1973-12-18
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Expires: 1991-04-05
Abstract
Abstract A closed tube in substantially horizontal position and approximately half filled with vaporizable liquid under very low absolute pressure has one exterior portion of its length exposed to hot fluid from which heat is extracted to vaporize liquid in the tube and another exterior portion of its length exposed to a relatively cool fluid which extracts heat from the vapor in the tube and condenses it. Vapor formed in the portion of the tube exposed to the hot fluid migrates to the portion of the tube exposed to the cool fluid and the condensate resulting from such cooling flows back to the tube portion exposed to hot fluid. The major portion of the internal periphery of that portion of the tube exposed to hot fluid is lined with wicking, but a gap is left between ends of the arcuate liner below the surface of the liquid in the tube for transmission of heat from the fluid externally of the tube directly to liquid in the tube to expedite its vaporization at that location.
Inventors
- 👤 G Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/04; F28D15/046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
In a heat transit device including a container having one portion exposed to heat-supplying means and a different portion exposed to heat-extracting means, the improvement comprising the combination of wick liner means on the inner periphery of the container portion exposed to the heat supply means, and the container containing a body of free vaporizable heat transfer liquid of substantial depth in the lower part of the container portion exposed to the heat-supplying means, at least a portion of the lower part of the inner periphery of the container below the surface of said liquid body not being covered by said wick liner means, and said liquid body also extending to the lower part of the container portion exposed to the heat-extracting means whereby bubbles resulting from the boiling of the liquid will saturate with liquid a portion of said wick liner above said liquid body.
Claim 2
Dependent Claim
146 words
In a heat transit device including a container having one portion exposed to heat-supplying means and a different portion exposed to heat-extracting means, the improvement comprising the combination of wick liner means on the inner periphery of the container portion exposed to the heat supply means, and the container containing a body of free vaporizable heat transfer liquid of substantial depth in the lower part of the container portion exposed to the heat-supplying means, at least a portion of the lower part of the inner periphery of the container below the surface of said liquid body not being covered by said wick liner means, and said liquid body also extending to the lower part of the container portion exposed to the heat-extracting means whereby bubbles resulting from the boiling of the liquid will saturate with liquid a portion of said wick liner above said liquid body.
Claim 3
Dependent Claim
36 words
In the heat transit device defined in claim 1, the wick liner means being interrupted for a portion of the peripheral extent of the container wall beneath the surface of the body of heat transfer liquid.
Claim 4
Dependent Claim
20 words
In the heat transit device defined in claim 2, the wick liner means being interrupted along a generally horizontal band.
Claim 5
Dependent Claim
29 words
In the heat transit device defined in claim 3, tHe band along which the wick liner means is interrupted being offset from the central portion of the container bottom.
Claim 6
Dependent Claim
47 words
In the heat transit device defined in claim 1, the wick liner means covering a portion of the inner periphery of the container portion beneath the surface of the heat transfer liquid for direct absorption of liquid by the wick liner means from the body of liquid.
Claim 7
Dependent Claim
32 words
In the heat transit device defined in claim 1, the surface of the body of heat transfer liquid in the container being substantially midway between the top and bottom of the container.
Claim 8
Dependent Claim
28 words
In the heat transit device defined in claim 1, the absolute pressure in the space above the surface of the body of liquid being less than atmospheric pressure.
Claim 9
Independent Claim
209 words
The method of transferring heat from a heat-supplying location to a heat-extracting location by a heat transfer fluid in a container having a wick liner lining an upper portion of the container and only part of the lower portion of the container, which comprises placing in the container sufficient vaporizable heat transfer fluid so that a substantial portion of the heat transfer fluid is in the form of a free liquid body beneath the portion of the wick liner lining the upper portion of the container and above a portion of the wick in the lower portion of the container and a portion of the free liquid body is located in the heat-extracting portion of the container, heating a portion of the container to effect nucleate boiling in the free liquid body for promoting evaporation of the heat transfer fluid from its liquid state to its vapor state and for moistening of the portion of wick liner above the liquid body, also heating a portion of the container upper portion lined with the wick liner for evaporating heat transfer fluid from the wick liner, and cooling the container at the heat-extracting location for condensing heat transfer fluid vapor back into its liquid state to rejoin the free liquid body.
Claim 10
Independent Claim
209 words
The method of transferring heat from a heat-supplying location to a heat-extracting location by a heat transfer fluid in a container having a wick liner lining an upper portion of the container and only part of the lower portion of the container, which comprises placing in the container sufficient vaporizable heat transfer fluid so that a substantial portion of the heat transfer fluid is in the form of a free liquid body beneath the portion of the wick liner lining the upper portion of the container and above a portion of the wick in the lower portion of the container and a portion of the free liquid body is located in the heat-extracting portion of the container, heating a portion of the container to effect nucleate boiling in the free liquid body for promoting evaporation of the heat transfer fluid from its liquid state to its vapor state and for moistening of the portion of wick liner above the liquid body, also heating a portion of the container upper portion lined with the wick liner for evaporating heat transfer fluid from the wick liner, and cooling the container at the heat-extracting location for condensing heat transfer fluid vapor back into its liquid state to rejoin the free liquid body.
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |