US3990263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigerating installation
Assignee: Individual
•
Filing: 1974-12-17
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Granted: 1976-11-09
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Expires: 1994-12-17
Abstract
Abstract In an absorbtion refrigerating installation each evaporator-absorber unit has a group of vertical pipes secured at their ends in pipe sheets. Provided in the upper portion of the units is an outlet for the liquid to flow down outside the pipes. Both, in the passages of the pipes and between the pipes the units are divided by hydraulic locks into spaces of different pressures. The hydraulic locks may be fashioned as spiral springs having a sponge stopper disposed thereon. The secondary evaporator of the installation is united in a group of the pipes with the main (primary) absorber so that the absorbent of the main absorber flows down from the outlets and the outer surface of the pipes is essentially the surface of the absorber, whereas the inner surface along which the refrigerant flows down is the surface of the secondary evaporator.
Inventors
- 👤 Emmanuil Gershkovich Ainbinder
- 👤 Georgy Vasilievich Kurilov
- 👤 Leonid Sergeevich Neustroev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:55
CPC Classifications
F; F28; F28D; F28D3/00; F28D3/02; F25; F25B; F25B37/00; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
An absorption refrigerating apparatus, comprising: a main evaporator of refrigerant, communicating by a vapor space with a main absorber; a secondary evaporator of the refrigerant, coupled into a single unit with said main evaporator and said main absorber so that said secondary evaporator and said main absorber are separated therebetween by heat transfer means; said secondary evaporator is coupled by liquid refrigerant with said main evaporator; a secondary absorber communicating by a vapor space with said secondary evaporator; a regenerator of liquid absorbent coupled at an absorbent inlet with said main absorber and at an outlet of the above absorbent with said secondary absorber, as well as coupled with said secondary evaporator by liquid refrigerant; said main absorber and the secondary evaporator comprise a group of vertical passages having, at the top, outlet means for said liquid absorbent flowing down a first surface confining the vapor space of said main absorber, and said liquid refrigerant flowing down a second surface, confining the vapor space of the secondary evaporator.
Claim 2
Dependent Claim
168 words
An absorption refrigerating apparatus, comprising: a main evaporator of refrigerant, communicating by a vapor space with a main absorber; a secondary evaporator of the refrigerant, coupled into a single unit with said main evaporator and said main absorber so that said secondary evaporator and said main absorber are separated therebetween by heat transfer means; said secondary evaporator is coupled by liquid refrigerant with said main evaporator; a secondary absorber communicating by a vapor space with said secondary evaporator; a regenerator of liquid absorbent coupled at an absorbent inlet with said main absorber and at an outlet of the above absorbent with said secondary absorber, as well as coupled with said secondary evaporator by liquid refrigerant; said main absorber and the secondary evaporator comprise a group of vertical passages having, at the top, outlet means for said liquid absorbent flowing down a first surface confining the vapor space of said main absorber, and said liquid refrigerant flowing down a second surface, confining the vapor space of the secondary evaporator.
Claim 3
Dependent Claim
30 words
The installation as claimed in claim 1, wherein the vertical passages are divided in height by hydraulic locks at a level both inside each passage and in the space there-between.
Claim 4
Dependent Claim
51 words
The installation as claimed in claim 2, wherein evaporator-absorber units comprises a group of vertical pipes secured at the top and at the bottom between pipe sheets, the outlets being made in a horizontal partition disposed under the upper sheet and providing for the passage of pipes therethrough with a clearance.
Claim 5
Dependent Claim
55 words
The installation as claimed in claim 3, wherein the hydraulic locks in the inner pipe space are formed by a partition having holes for said pipes, each hole having spiral springs inserted therein and embracing said pipes, and the hydraulic locks disposed inside the pipes comprising springs carrying a stopper made from a sponge material.
Claim 6
Dependent Claim
28 words
The installation as claimed in claim 1, wherein provided between the regenerator and the secondary absorber and between the main and secondary absorbers are coolers of the absorbent.
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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |