US3989102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling liquid de-gassing system
Assignee: General Electric Co
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Filing: 1974-10-18
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Granted: 1976-11-02
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Expires: 1994-10-18
Abstract
Abstract A closed loop forced liquid cooling system has provision for continuously separating dissolved gas from the cooling liquid. A gas separator is combined with a liquid-gas interface pressurizer to establish favorable temperature and/or low pressure conditions for preferential gas evolution. By preventing bubble formation in liquids cooling electronic and electrical equipment, dielectric breakdown of the cooling liquid is averted.
Inventors
- 👤 Heinz Jaster
- 👤 Fred W. Staub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:55
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; F28D15/0258; F28F; F28F2265/00; F28F2265/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
A forced liquid cooling system comprising a main cooling duct loop for continuously circulating dielectric cooling liquid in a closed path past heat producing equipment to be cooled and including a pump for pumping said cooling liquid and a heat exchanger for cooling said cooling liquid, combined continuous gas separator and liquid-gas interface pressurizer means for pressurizing at least a portion of said cooling liquid with dielectric gas and establishing selected physical conditions to obtain preferential evolution of dissolved gas from said cooling liquid, to thereby prevent the formation of bubbles, and said combined separator and pressurizer means elevated above said main cooling duct loop and including auxiliary heating means for heating the cooling liquid circulating therethrough, to thereby establish favorable temperature and pressure conditions for gas evolution.
Claim 2
Dependent Claim
128 words
A forced liquid cooling system comprising a main cooling duct loop for continuously circulating dielectric cooling liquid in a closed path past heat producing equipment to be cooled and including a pump for pumping said cooling liquid and a heat exchanger for cooling said cooling liquid, combined continuous gas separator and liquid-gas interface pressurizer means for pressurizing at least a portion of said cooling liquid with dielectric gas and establishing selected physical conditions to obtain preferential evolution of dissolved gas from said cooling liquid, to thereby prevent the formation of bubbles, and said combined separator and pressurizer means elevated above said main cooling duct loop and including auxiliary heating means for heating the cooling liquid circulating therethrough, to thereby establish favorable temperature and pressure conditions for gas evolution.
Claim 3
Dependent Claim
183 words
A forced liquid cooling system comprising: a main cooling duct loop for continuously circulating dielectric cooling liquid in a closed path past heat producing equipment to be cooled and including a pump for pumping said cooling liquid and a heat exchanger for cooling said cooling liquid, combined continuous gas separator and liquid gas interface pressurizer means for pressurizing at least a portion of said cooling liquid with dielectric gas while establishing selected physical conditions to obtain preferential evolution of dissolved gas from said cooling liquid and prevent formation of bubbles, said combined separator and pressurizer means comprising a pressurizer expansion tank for said cooling liquid having a vertical exit duct connecting to a gas storage tank, a vertically oriented condenser mounted to cool the vapor and gas in said exit duct, and means for venting excess pressure in said gas storage tank; and said combined separator and pressurizer means elevated above said main cooling duct loop and further including an auxiliary heater for heating the cooling liquid in said pressurizer expansion tank to thereby establish favorable temperature and pressure conditions for gas evolution.
Claim 4
Dependent Claim
183 words
A forced liquid cooling system comprising: a main cooling duct loop for continuously circulating dielectric cooling liquid in a closed path past heat producing equipment to be cooled and including a pump for pumping said cooling liquid and a heat exchanger for cooling said cooling liquid, combined continuous gas separator and liquid gas interface pressurizer means for pressurizing at least a portion of said cooling liquid with dielectric gas while establishing selected physical conditions to obtain preferential evolution of dissolved gas from said cooling liquid and prevent formation of bubbles, said combined separator and pressurizer means comprising a pressurizer expansion tank for said cooling liquid having a vertical exit duct connecting to a gas storage tank, a vertically oriented condenser mounted to cool the vapor and gas in said exit duct, and means for venting excess pressure in said gas storage tank; and said combined separator and pressurizer means elevated above said main cooling duct loop and further including an auxiliary heater for heating the cooling liquid in said pressurizer expansion tank to thereby establish favorable temperature and pressure conditions for gas evolution.
Claim 5
Dependent Claim
26 words
A cooling system according to claim 2 wherein said combined separator and pressurizer means is connected in a bypass branch of said main cooling duct loop.
Claim 6
Dependent Claim
32 words
A cooling system according to claim 3 wherein said bypass branch with said combined separator and pressurizer is connected between the inlet of said heat exchanger and the inlet of said pump.
Claim 7
Dependent Claim
39 words
A cooling system according to claim 2 further including temperature sensors mounted on said vertically oriented condenser, and a control system connected to said temperature sensors for controlling said means for venting excess pressure in said gas storage tank.
References Cited (Backward Citations)
FR1351116A
Cited
US3835919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |