US3929435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of multi stage injector cooling
Assignee: Baltimore Aircoil Co Inc
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Filing: 1974-03-11
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Granted: 1975-12-30
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Expires: 1994-03-11
Abstract
Abstract A method of staging of injector type evaporative heat exchangers in such a way that the water to have heat extracted from it flows through the stages in series but comes into contact with a new volume of air at each stage. Dramatic reductions in size of unit required to deal with high loads is achieved without increase in horsepower requirements.
Inventors
- 👤 Jr John Engalitcheff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:27
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/06; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
THE METHOD OF EXTRACTING HEAT FROM A LIQUID THAT COMPRISES SPRAYING SAID LIQUID INTO A CONFINED REGION HAVING AN END OPEN TO A SOURCE OF FIRST GAS AT A WET BULB TEMPERATURE LOWER THAN THAT OF THE SPRAY LIQUID, CAUSING SAID SPRAY TIO INDUCE FLOW OF SAID FIRST GAS FROM SAID SOURCE INTO SAID CONFINED REGION FOR MIXING AND PARTIAL EVAPORATION OF SAID LIQUID, SEPARATING THE SO MIXED FIRST GAS FROM SAID LIQUID AND COLLECTING THE LATTER AT A FIRST TEMPERATURE ABOVE THE WET BULB TEMPERATURE OF THE SEPARATED FIRST GAS, SPRAYING SAID LIQUID INTO ANOTHER CONFINED REGION HAVING AN END OPEN TO A SOURCE OF SECOND GAS AT A WET BULB TEMPERATURE NO HIGHER THAN THAT OF THE FIRST GAS AT SAID FIRST MENTIONED SOURCE, CAUSING SAID SPRAY TO INDUCE FLOW OF SAID SECOND GAS FROM SAID SOURCE INTO SAID OTHER CONFINED REGION FOR MIXING AND PARTIAL EVAPORATION OF SAID LIQUID, SEPARATING THE SECOND GAS AND LIQUID AND COLLECTING THE LIQUID AT SECOND TEMPERATURE ABOVE THE WET BULB TEMPERATURE OF THE SEPARATED GAS BUT BELOW THE WET BULB TEMPERATURE OF THE
Claim 2
Independent Claim
182 words
THE METHOD OF EXTRACTING HEAT FROM A LIQUID THAT COMPRISES SPRAYING SAID LIQUID INTO A CONFINED REGION HAVING AN END OPEN TO A SOURCE OF FIRST GAS AT A WET BULB TEMPERATURE LOWER THAN THAT OF THE SPRAY LIQUID, CAUSING SAID SPRAY TIO INDUCE FLOW OF SAID FIRST GAS FROM SAID SOURCE INTO SAID CONFINED REGION FOR MIXING AND PARTIAL EVAPORATION OF SAID LIQUID, SEPARATING THE SO MIXED FIRST GAS FROM SAID LIQUID AND COLLECTING THE LATTER AT A FIRST TEMPERATURE ABOVE THE WET BULB TEMPERATURE OF THE SEPARATED FIRST GAS, SPRAYING SAID LIQUID INTO ANOTHER CONFINED REGION HAVING AN END OPEN TO A SOURCE OF SECOND GAS AT A WET BULB TEMPERATURE NO HIGHER THAN THAT OF THE FIRST GAS AT SAID FIRST MENTIONED SOURCE, CAUSING SAID SPRAY TO INDUCE FLOW OF SAID SECOND GAS FROM SAID SOURCE INTO SAID OTHER CONFINED REGION FOR MIXING AND PARTIAL EVAPORATION OF SAID LIQUID, SEPARATING THE SECOND GAS AND LIQUID AND COLLECTING THE LIQUID AT SECOND TEMPERATURE ABOVE THE WET BULB TEMPERATURE OF THE SEPARATED GAS BUT BELOW THE WET BULB TEMPERATURE OF THE
Claim 3
Dependent Claim
48 words
The method of claim 1 wherein the liquid at said second temperature is further sprayed successively into one or more confined regions each of said regions having an end open to a source of gas at a wet bulb temperature no higher than at said first mentioned source.
Claim 4
Independent Claim
189 words
The method of extracting heat from water that comprises spraying said water into a confined region having an end open to a source of atmospheric air at a wet bulb temperature lower than that of said spray water, causing said spray to induce a first air flow from said source into said confined region for mixing and partial evaporation of said water, exhausting said first air, collecting the remaining water at a first temperature above the wet bulb temperature of the exhausting first air, and spraying the same into another confined region having an end also open to said source of atmospheric air, causing said spray to induce a second air flow from said source into said other confined region for mixing and partial evaporation of said water and collecting said water at a second temperature above the wet bulb temperature of the exhausting air but below the wet bulb temperature of the exhausted first air, the combined total cross sectional areas of both said confined regions being less than the cross sectional area of a single similar confined region capable of cooling said water to said second temperature.
Claim 5
Independent Claim
189 words
The method of extracting heat from water that comprises spraying said water into a confined region having an end open to a source of atmospheric air at a wet bulb temperature lower than that of said spray water, causing said spray to induce a first air flow from said source into said confined region for mixing and partial evaporation of said water, exhausting said first air, collecting the remaining water at a first temperature above the wet bulb temperature of the exhausting first air, and spraying the same into another confined region having an end also open to said source of atmospheric air, causing said spray to induce a second air flow from said source into said other confined region for mixing and partial evaporation of said water and collecting said water at a second temperature above the wet bulb temperature of the exhausting air but below the wet bulb temperature of the exhausted first air, the combined total cross sectional areas of both said confined regions being less than the cross sectional area of a single similar confined region capable of cooling said water to said second temperature.
Claim 6
Dependent Claim
49 words
The method of claim 3 wherein the water at said second temperature is further sprayed successively into one or more confined regions each of said regions having an end open to a source of atmospheric air at a wet bulb temperature no higher than at said first mentioned source.
Claim 7
Dependent Claim
23 words
The method of claim 3 in which the energy of the water sprayed into said first and said other confined region is equal.
Claim 8
Dependent Claim
19 words
The method of claim 3 in which said first and said other confined region are of substantially equal size.
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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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |