US3774677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system providing spray type condensation
Assignee: International Business Machines Corp
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Filing: 1971-02-26
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Granted: 1973-11-27
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Expires: 1991-02-26
Abstract
Abstract A spray condensing and cooling arrangement is provided in a liquid cooling system to provide condensing of vapors generated by nucleate boiling at a heat source. Two-phase flow takes place from the heat source in the form of liquid and boiling vapors to said spray condensing and cooling means where the vapors are condensed by the cooler spray in the spray condensing and cooling means. The amount of spray and, accordingly, the amount of vapor condensation is controlled by a servo arrangement which regulates the pressure within the system.
Inventors
- 👤 V Antonetti
- 👤 O Gupta
- 👤 K Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W40/73
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
In a liquid cooling system for data processing equipment and the like; a heat source; a cooling liquid, said heat source immersed in said cooling liquid so that nucleate boiling takes place within the liquid to remove heat from said heat source; a spray condensing and cooling means for providing a spray of said cooling liquid; and conduit means connecting said heat source to said spray condensing and cooling means so that two-phase flow takes place from said heat source in the form of liquid and boiling vapors to said spray condensing and cooling means, said vapors in said two-phase flow being condensed and cooled by the cooler spray in said spray condensing and cooling means.
Claim 2
Dependent Claim
116 words
In a liquid cooling system for data processing equipment and the like; a heat source; a cooling liquid, said heat source immersed in said cooling liquid so that nucleate boiling takes place within the liquid to remove heat from said heat source; a spray condensing and cooling means for providing a spray of said cooling liquid; and conduit means connecting said heat source to said spray condensing and cooling means so that two-phase flow takes place from said heat source in the form of liquid and boiling vapors to said spray condensing and cooling means, said vapors in said two-phase flow being condensed and cooled by the cooler spray in said spray condensing and cooling means.
Claim 3
Dependent Claim
28 words
In a liquid cooling system according to claim 1, wherein said heat source and said spray condensing and cooling means are located in a closed single circulating system.
Claim 4
Dependent Claim
50 words
In a liquid cooling system according to claim 1, wherein outlet conduit means are provided connecting said spray condensing and cooling means to said heat source, and a pump located in said outlet conduit means for pumping the fluid from said spray condensing and cooling means to said heat source.
Claim 5
Dependent Claim
30 words
In a liquid cooling system according to claim 3, wherein a heat exchanger is located in said outlet conduit to further cool said fluid before it reaches said heat source.
Claim 6
Dependent Claim
43 words
In a liquid cooling system according to claim 4, wherein a quench spray conduit branches out from said outlet conduit after said pump and heat exchanger and connects to said spray condensing and cooling means to carry the cooled liquid to be sprayed.
Claim 7
Dependent Claim
127 words
In a liquid cooling system according to claim 5, wherein a bypass conduit is provided connected between said quench spray conduit and said outlet conduit for bypassing said cooling liquid so that it does not enter said spray condensing and cooling means, said control valve being located in said bypass conduit, said control valve being operated by said servo controller in response to said pressure sensing means located in said circulating system of said spray condensing and cooling means and said heat source to bypass the cooling liquid when a decrease in condensing spray is signalled by a drop in pressure within said system and to diminish the bypass flow when an increase in spray is required by a signal indicating a pressure increase in the system.
Claim 8
Dependent Claim
29 words
In a liquid cooling system according to claim 2, wherein a control means is provided for controlling the amount of spray provided by said spray condensing and cooling means.
Claim 9
Dependent Claim
59 words
In a liquid cooling system according to claim 7 wherein a pressure sensor is provided within said conTrol means for measuring the pressure therein and a servo controller is connected to said pressure sensor for transforming said pressure signal into a valve movement for controlling the amount of said cooling liquid applied to said spray condensing and cooling means.
Claim 10
Dependent Claim
62 words
In a liquid cooling system according to claim 7, wherein a temperature sensing means is located after said spray condensing and cooling means and a servo controller is provided for transforming said temperature signal into a valve movement for controlling the amount of liquid fed to said spray condensing and cooling means increasing the flow for a temperature rise and vice versa.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |