US4945980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling unit
Assignee: NEC Corp
•
Filing: 1989-09-07
•
Granted: 1990-08-07
•
Expires: 2009-09-07
Abstract
Abstract A cooling unit includes a coolant inlet through which a cooling coolant flows into the coding unit, a plurality of devices to be cooled which are connected to the coolant inlet in parallel, a coolant outlet through which the cooling coolant flows out from the cooling unit to the devices, a plurality of flow rate adjusting portions, connected to the coolant outlet in parallel so as to respectively correspond to the devices, for adjusting flow rates for the respective devices, a circulating pump through which the cooling coolant flows to the flow rate adjusting portions, and a heating exchanging section for heat-exchanging the cooling coolant flowing into the cooling unit through the coolant inlet and supplying the heat-exchanged cooling coolant to the circulating pump.
Inventors
- 👤 Kazuhiko Umezawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:00
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20709; H05K7/20836; H05K7/20763; H05K7/2079; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/101; Y10S165/104; Y10S165/106; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
A cooling unit comprising: a coolant inlet through which a cooling coolant flows into said cooling unit; a plurality of devices to be cooled which are connected to the coolant inlet in parallel; a coolant outlet through which the cooling coolant flows out from said cooling unit to said plurality of devices; a plurality of flow rate adjusting portions, connected to said coolant outlet in parallel, for selectively adjusting the coolant flow rate flowing through said coolant outlet corresponding to each device to be cooled; a circulating pump through which the cooling coolant flows to said plurality of flow rate adjusting portions; and heat exchanging means for heat-exchanging the cooling coolant flowing into said cooling unit through said coolant inlet and supplying the heat-exchanged cooling coolant to said circulating pump.
Claim 2
Dependent Claim
130 words
A cooling unit comprising: a coolant inlet through which a cooling coolant flows into said cooling unit; a plurality of devices to be cooled which are connected to the coolant inlet in parallel; a coolant outlet through which the cooling coolant flows out from said cooling unit to said plurality of devices; a plurality of flow rate adjusting portions, connected to said coolant outlet in parallel, for selectively adjusting the coolant flow rate flowing through said coolant outlet corresponding to each device to be cooled; a circulating pump through which the cooling coolant flows to said plurality of flow rate adjusting portions; and heat exchanging means for heat-exchanging the cooling coolant flowing into said cooling unit through said coolant inlet and supplying the heat-exchanged cooling coolant to said circulating pump.
Claim 3
Dependent Claim
25 words
A cooling unit according to claim 1, wherein each of said flow rate adjusting portions comprises a solenoid valve and a constant flow rate valve.
Claim 4
Dependent Claim
20 words
A cooling unit according to claim 1, wherein said heat exchanging means comprises an expansion tank and a heat exchanger.
References Cited (Backward Citations)
US2357706A
Cited
US2783418A
Cited
US2999034A
Cited
US3205469A
Cited
US3211969A
Cited
US3651865A
Cited
US3777220A
Cited
US3881181A
Cited
US3827457A
Cited
US3912001A
Cited
US3908188A
Cited
SU572951A1
Cited
US4110549A
Cited
US4109707A
Cited
US3993123A
Cited
US4204246A
Cited
US4037270A
Cited
US4093971A
Cited
US4115836A
Cited
US4158875A
Cited
US4196775A
Cited
JPS5586130A
Cited
US4439918A
Cited
US4282924A
Cited
US4245273A
Cited
US4398208A
Cited
JPS5670655A
Cited
US4588023A
Cited
JPS57106062A
Cited
US4641176A
Cited
US4467522A
Cited
US4381032A
Cited
US4468717A
Cited
US4493010A
Cited
US4498122A
Cited
JPS59130450A
Cited
US4509096A
Cited
US4536824A
Cited
US4744007A
Cited
US4535385A
Cited
US4602678A
Cited
US4644385A
Cited
US4546410A
Cited
JPS60160150A
Cited
US4574879A
Cited
JPS60257156A
Cited
US4666545A
Cited
US4628990A
Cited
US4685211A
Cited
JPS61171157A
Cited
US4727554A
Cited
US4689659A
Cited
US4686606A
Cited
US4712158A
Cited
JPS61226946A
Cited
US4729424A
Cited
US4602125A
Cited
JPS61276242A
Cited
US4748495A
Cited
US4724611A
Cited
US4783721A
Cited
US4750086A
Cited
US4781244A
Cited
US4794981A
Cited
JPS6381959A
Cited
US4721996A
Cited
US4768352A
Cited
JPS63226049A
Cited
JPS63308943A
Cited
US4791983A
Cited
US4884167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |