US3701265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration system
Assignee: Carrier Corp
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Filing: 1971-06-21
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Granted: 1972-10-31
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Expires: 1991-06-21
Abstract
Abstract An absorption refrigeration system wherein there is provided in communication with the evaporator, absorber, generator and condenser fluid handling apparatus in the form of a hermetic housing mounting therein a rotatively driven shaft member journaled at opposite ends in bearing means and supporting a plurality of scoop pumps for effecting, among other functions, circulation of refrigerant and absorbent solution through the system, purging, and machine capacity control.
Inventors
- 👤 Louis H Leonard Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:14
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/43; H01J2231/00; H01J2231/50; H01J2231/50005; H01J2231/5001; H01J2231/50015; H01J2231/505; H01J2231/5056
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
An absorption refrigeration system comprising a generator for concentrating absorbent solution by vaporizing refrigerant therefrom to form strong absorbent solution; a condenser connected for condensing refrigerant vapor formed in said generator; an evaporator for evaporating the refrigerant liquid therein; an absorber connected to the evaporator for absorbing refrigerant vapor formed therein; and fluid handling apparatus for circulating weak absorbent solution from the absorber to the generator, said apparatus including a hermetic housing, and a rotatable scoop pump within said housing and means to rotate said scoop pump, said scoop pump comprising a rotatable pan, a first inlet conduit extending from said absorber into said housing to said pan for passing weak absorbent solution to said pan, a second inlet conduit extending from a vapor space in said absorber to said housing for passing relatively noncondensable gases from the absorber to said housing, and an eduction conduit having an opening adjacent the surface of liquid in said pan connected to said generator, said scoop pump being operative to pump a mixture of absorbent solution and relatively noncondensable gases through said eduction conduit to the high pressure side of said system along with the weak solution passing to said generator.
Claim 2
Dependent Claim
198 words
An absorption refrigeration system comprising a generator for concentrating absorbent solution by vaporizing refrigerant therefrom to form strong absorbent solution; a condenser connected for condensing refrigerant vapor formed in said generator; an evaporator for evaporating the refrigerant liquid therein; an absorber connected to the evaporator for absorbing refrigerant vapor formed therein; and fluid handling apparatus for circulating weak absorbent solution from the absorber to the generator, said apparatus including a hermetic housing, and a rotatable scoop pump within said housing and means to rotate said scoop pump, said scoop pump comprising a rotatable pan, a first inlet conduit extending from said absorber into said housing to said pan for passing weak absorbent solution to said pan, a second inlet conduit extending from a vapor space in said absorber to said housing for passing relatively noncondensable gases from the absorber to said housing, and an eduction conduit having an opening adjacent the surface of liquid in said pan connected to said generator, said scoop pump being operative to pump a mixture of absorbent solution and relatively noncondensable gases through said eduction conduit to the high pressure side of said system along with the weak solution passing to said generator.
Claim 3
Dependent Claim
49 words
An absorption refrigeration system as defined in claim 1, wherein said second inlet conduit is disposed in said housing beneath the level of absorbent solution in said pan and faces in the direction of rotation of said pan so as to induce the relatively noncondensable gases into said housing.
Claim 4
Dependent Claim
30 words
An absorption refrigeration system as defined in claim 1, wherein the means for rotating said scoop pump includes magnetic coupling means for driving said scoop pump from outside said housing.
References Cited (Backward Citations)
US3187515A
Cited
US3597936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |