US3785626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for injection cooling towers
Assignee: Baltimore Aircoil Co Inc
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Filing: 1971-05-19
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Granted: 1974-01-15
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Expires: 1991-05-19
Abstract
Abstract A control system for injection evaporative heat exchangers comprised of a chamber having a mouth, a throat, and a region downstream of the throat between it and the exhaust opening. Water is injected into the throat and induces air flow into the mouth and causes mixed concurrent flow downstream of the throat. Air is discharged from the exhaust opening and cooled water is collected. Controls are provided by which the amount of air pumped per unit time is controllable to accommodate the unit to variable heat load conditions.
Inventors
- 👤 W Bradley
- 👤 E Schinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:28
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/12; B; B01; B01D; B01D1/00; B01D1/16; B01D1/30; B01D3/00; B01D3/34; B01D3/343; B01D3/346; F28C3/00; F28C3/06; F28C3/08; F28F; F28F25/00; F28F25/02; F28F27/00; F28F27/003; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
128 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and a downstream region, means to collect the sprayed water, said means to spray water including nozzles, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis to another position intersecting the spray downstream of the nozzles to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 2
Dependent Claim
128 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and a downstream region, means to collect the sprayed water, said means to spray water including nozzles, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis to another position intersecting the spray downstream of the nozzles to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 3
Dependent Claim
137 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining a region downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis to a tilted position in respect to it to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 4
Dependent Claim
137 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining a region downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis to a tilted position in respect to it to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 5
Dependent Claim
164 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining a region downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, each of which produces a spray divergent from the nozzle but substantially flat on opposite sides, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis but normal to the flat sides of the spray to a tilted position in respect to the spray axis to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 6
Dependent Claim
164 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, means defining a region downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, each of which produces a spray divergent from the nozzle but substantially flat on opposite sides, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis but normal to the flat sides of the spray to a tilted position in respect to the spray axis to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 7
Dependent Claim
170 words
An evaporative heat exchanger comprising an injector having means defining a rectangular air intake opening, a rectangular air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, each of which produces a spray divergent from the nozzle but substantially flat on opposite sides, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis but normal to the flat Sides of the spray to a tilted position in respect to the spray axis to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 8
Dependent Claim
170 words
An evaporative heat exchanger comprising an injector having means defining a rectangular air intake opening, a rectangular air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, means to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, said means to spray water including nozzles, each of which produces a spray divergent from the nozzle but substantially flat on opposite sides, a streamlined damper positioned between said nozzles and said air and water mixing region and means mounting said damper for movement from a position parallel to the nozzle axis but normal to the flat Sides of the spray to a tilted position in respect to the spray axis to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 9
Dependent Claim
164 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, nozzles to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, each of said nozzles producing a spray divergent from its axis but substantially flat on opposite sides, said flat sides of each jet being parallel to flat sides of other jets and common streamlined damper means positioned between said nozzles and said air and water mixing region and movable from a position on the axis of said jets but normal to said flat sides to another position to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 10
Dependent Claim
164 words
An evaporative heat exchanger comprising an injector having means defining an air intake opening, an air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, nozzles to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, each of said nozzles producing a spray divergent from its axis but substantially flat on opposite sides, said flat sides of each jet being parallel to flat sides of other jets and common streamlined damper means positioned between said nozzles and said air and water mixing region and movable from a position on the axis of said jets but normal to said flat sides to another position to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 11
Dependent Claim
29 words
An evaporative heat exchanger as claimed in claim 5 wherein said movement of said streamlined dampers is pivotal and the axes of pivot intersect the axes of the jets.
Claim 12
Dependent Claim
166 words
An evaporative heat exchanger comprising an injector having means defining a rectangular air intake opening, a rectangular air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, nozzles to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, each of said nozzles producing a spray divergent from its axis but substantially flat on opposite sides, said flat sides of each jet being parallel to flat sides of other jets and common streamlined damper means positioned between said nozzles and said air and water mixing region and movable from a position on the axis of said jets but normal to said flat sides to another position to quench the spray from the nozzles and reduce air-water contact and air flow.
Claim 13
Dependent Claim
166 words
An evaporative heat exchanger comprising an injector having means defining a rectangular air intake opening, a rectangular air and water mixing region, opposite wall means defining a region of expansion downstream of said air and water mixing region, means defining an exhaust opening, nozzles to spray water into said air and water mixing region to induce air to flow into said opening and to flow concurrent with said water through said air and water mixing region and downstream region, means to collect the sprayed water, each of said nozzles producing a spray divergent from its axis but substantially flat on opposite sides, said flat sides of each jet being parallel to flat sides of other jets and common streamlined damper means positioned between said nozzles and said air and water mixing region and movable from a position on the axis of said jets but normal to said flat sides to another position to quench the spray from the nozzles and reduce air-water contact and air flow.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |