US3779036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion and evaporation apparatus for refrigerating machines
Assignee: Froid Industrial Brissonneau York SA
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Filing: 1972-01-20
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Granted: 1973-12-18
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Expires: 1992-01-20
Abstract
Abstract Apparatus for expanding and evaporating refrigerating fluid in a compression-type refrigerating machine for cooling a fluid such as water, brine, air, moist air, circulating outside the tubes of a tube bundle, said apparatus being characterized in that it comprises (i) a tube bundle part of which is fed, inside the tubes, by forced circulation of refrigerating fluid with a flow exceeding the flow vaporized, the other part of the said bundle serving to dry and to superheat the vapour produced in the first part, (ii) a device, for separating excess liquid, positioned between the first and second parts of said tube bundle, (iii) a separation chamber arranged to collect said excess liquid, and (iv) an ejector taking up said excess liquid to recirculate it, said ejector operating with a motive fluid consisting of the high pressure liquid refrigerating fluid coming from the condenser, said motive fluid being expanded in the neck of the primary nozzle of the ejector.
Inventors
- 👤 P Girardin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:41
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F25B41/00; F25B2341/00; F25B2341/001; F25B2341/0012; F25B2500/00; F25B2500/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
194 words
An expansion and evaporation apparatus for a refrigerating system adapted to cool a fluid comprising: a an elongated evaporator body having an inlet and outlet whereby fluid to be cooled flows through said evaporator body, said evaporator body having a wall at each end; b a tube bundle in said evaporator body, said tube bundle including a plurality of tubes through which a refrigerant flows, said tube bundle having first and second portions; c a vessel disposed at one end of said evaporator body in contiguous relationship with one wall; d said one wall having openings through which said tubes communicate with said vessel; e an ejector disposed in said vessel so that the longitudinal axis thereof is parallel with the longitudinal axis of said tube bundle; f a partition positioned in said vessel and interposed between said first and second portions of said tube bundle, said partition having at least one surface disposed parallel to the longitudinal axes of said evaporator body and said ejector; g whereby liquid refrigerant is removed by said partition to be recirculated by said ejector so that said fluid flowing into said second tube bundle may be superheated.
Claim 2
Dependent Claim
194 words
An expansion and evaporation apparatus for a refrigerating system adapted to cool a fluid comprising: a an elongated evaporator body having an inlet and outlet whereby fluid to be cooled flows through said evaporator body, said evaporator body having a wall at each end; b a tube bundle in said evaporator body, said tube bundle including a plurality of tubes through which a refrigerant flows, said tube bundle having first and second portions; c a vessel disposed at one end of said evaporator body in contiguous relationship with one wall; d said one wall having openings through which said tubes communicate with said vessel; e an ejector disposed in said vessel so that the longitudinal axis thereof is parallel with the longitudinal axis of said tube bundle; f a partition positioned in said vessel and interposed between said first and second portions of said tube bundle, said partition having at least one surface disposed parallel to the longitudinal axes of said evaporator body and said ejector; g whereby liquid refrigerant is removed by said partition to be recirculated by said ejector so that said fluid flowing into said second tube bundle may be superheated.
Claim 3
Dependent Claim
53 words
An apparatus as defined in claim 1 including means in said evaporator body for directing the initial flow of fluid to be cooled from said inlet and along outer surfaces of the tubes of said second portion of said tube bundle to effect superheating of refrigerant in the tubes of said second portion.
Claim 4
Dependent Claim
65 words
An apparatus as defined in claim 1, wherein said ejector includes a curved portion therein and an inlet opening in said curved portion, the axis of said inlet opening being disposed at approximately 90* with respect to the longitudinal axis of said ejector, whereby said ejector may draw liquid refrigerant which has been collected in said vessel regardless of the level of the liquid refrigerant.
Claim 5
Dependent Claim
39 words
An apparatus as defined in claim 3 including a deflector in said vessel disposed approximately perpendicularly with respect to said ejector to distribute the flow from said ejector to the tubes of said first portion of said tube bundle.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |