US3783935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cooler
Assignee: United Aircraft Products Inc
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Filing: 1972-05-30
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Granted: 1974-01-08
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Expires: 1992-05-30
Abstract
Abstract A surface cooler for interposing in ram air or the like. Aerodynamic devices at the leading end of the cooler capture high energy air from the free air stream outwardly of the cooler mounting surface and divert the more stagnant air at the mounting surface away from the cooler inlet, the function being to reject heat to this captured air from a fluid used as a coolant in a location remote from the cooler. At the trailing end of the cooler other aerodynamic devices utilize the air flowing over the cooler to facilitate venting of a system fluid.
Inventors
- 👤 C Simmons
- 👤 J Fernandes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:52
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B64; B64D; B64D13/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
173 words
A surface cooler for mounting to a surface which is in the use of the cooler is swept by a current of flowing coolant, an assembly of plates superposing to define a first passage adjacent to said surface anD open for free flow of the flowing coolant therethrough, said plates further defining a second passage for a transport fluid to be cooled by flow in heat transfer relation to said coolant, said assembly of plates being oriented to have a leading and a trailing end in relation to the direction of flow of the coolant over said surface, said first passage having an inlet facing into the current of flowing coolant at said leading end, and means encountered by the flowing coolant in advance of said inlet having regard to the direction of flow of the coolant capturing high energy coolant from the current of flowing coolant outwardly of said surface and supplying it to said inlet and depriving relatively slow moving low energy coolant at said surface from access to said inlet.
Claim 2
Dependent Claim
173 words
A surface cooler for mounting to a surface which is in the use of the cooler is swept by a current of flowing coolant, an assembly of plates superposing to define a first passage adjacent to said surface anD open for free flow of the flowing coolant therethrough, said plates further defining a second passage for a transport fluid to be cooled by flow in heat transfer relation to said coolant, said assembly of plates being oriented to have a leading and a trailing end in relation to the direction of flow of the coolant over said surface, said first passage having an inlet facing into the current of flowing coolant at said leading end, and means encountered by the flowing coolant in advance of said inlet having regard to the direction of flow of the coolant capturing high energy coolant from the current of flowing coolant outwardly of said surface and supplying it to said inlet and depriving relatively slow moving low energy coolant at said surface from access to said inlet.
Claim 3
Dependent Claim
54 words
A surface cooler according to claim 1, wherein said last named means interposes a flow dividing edge in advance of said inlet in the current of flowing coolant and outwardly of said surface, said last named means inwardly of said edge blocking and diverting a low energy layer of coolant adjacent to said surface.
Claim 4
Dependent Claim
30 words
A surface cooler according to claim 2, wherein said last named means provides a downwardly inclining ramp extending longitudinally and inwardly of said flow dividing edge substantially to said inlet.
Claim 5
Dependent Claim
39 words
A surface cooler according to claim 3, wherein said assembly of plates includes side plates extending in advance of said inlet and forming with said flow dividing edge a well, said inclined ramp forming the floor of said well.
Claim 6
Dependent Claim
50 words
A surface cooler according to claim 2, wherein said second passage is in superposing relation to said first passage, characterized by manifold means closing the terminal ends of said second passage and external flow connections to said manifold means for conducting a transport fluid to and from said second passage.
Claim 7
Dependent Claim
77 words
A surface cooler according to claim 5, wherein one terminal end of said second passage is in substantially overlying parallel relation to said first passage inlet, said external flow connections including laterally spaced apart tubes attaching at their one ends to a manifold means closing said one terminal end and extending toward said flow dividing edge and joining in a common chamber forming a part of the means blocking and diverting the low energy layer of coolant.
Claim 8
Dependent Claim
68 words
A surface cooler according to claim 1, wherein said assembly of plates is arranged to provide a coolant outlet from said first passage at said trailing end, said second passage being in superposing relation to said first passage and having terminal ends approximately coinciding with the inlet and outlet of said first passage, manifolds closing said terminal ends and external transport fluid conducting conductors connecting to said manifolds.
Claim 9
Dependent Claim
78 words
A surface cooler according to claim 7, wherein a third fluid is brought to said surface for venting, characterized by means superposing on said assembly of plates forming a vent chamber and having ends defining leading and trailing ends in relation to the direction of flow of said flowing coolant, means for conducting said third fluid to said vent chamber, and a vent outlet from said chamber in the said trailing end of the means defining said chamber.
Claim 10
Dependent Claim
51 words
A surface cooler according to claim 8, wherein the leading end of the means defining said vent chamber inclines to a relatively elevated trailing end, the sweep of flowing coolant over the means defining said vent chamber inducing an escape of said third fluid from the outlet of said vent chamber.
Claim 11
Dependent Claim
44 words
A surface cooler according to claim 9, wherein said means defining said vent chamber disposes on said assembly of plates to project the trailing end thereof relatively to the outlet of said first passage and the approximately coinciding terminal end of said second passage.
Claim 12
Dependent Claim
110 words
A surface cooler, including means defining a presented surface swept by a flowing coolant, and an assembly of stacked plates on said surface and providing superposed first and second flOw passages one of which is adjacent to said surface and another of which overlies said one passage and is in relatively elevated spaced relation to said surface, said one passage being open for a free flow therethrough of coolant sweeping over said surface, and means for closing said second flow passage for segregated flow of a heated fluid therethrough, the heated fluid in said second passage rejecting heat to flowing coolant in both an overlying and an underlying relation thereto.
Claim 13
Dependent Claim
110 words
A surface cooler, including means defining a presented surface swept by a flowing coolant, and an assembly of stacked plates on said surface and providing superposed first and second flOw passages one of which is adjacent to said surface and another of which overlies said one passage and is in relatively elevated spaced relation to said surface, said one passage being open for a free flow therethrough of coolant sweeping over said surface, and means for closing said second flow passage for segregated flow of a heated fluid therethrough, the heated fluid in said second passage rejecting heat to flowing coolant in both an overlying and an underlying relation thereto.
Claim 14
Dependent Claim
70 words
A surface cooler according to claim 11, wherein said surface cooler orients on said surface to dispose an inlet end of said first passage into a stream of flowing coolant, characterized by flow divider means in advance of said inlet end encouraging a movement of high energy flowing coolant to said inlet end while depriving relatively low energy coolant at and adjacent to said surface from access to said inlet.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |