Patent US4121432A successfully refreshed from Google Patents.
US4121432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid adsorption air conditioning apparatus and method
Assignee: Gas Technology Institute
•
Filing: 1977-03-24
•
Granted: 1978-10-24
•
Expires: 1997-03-24
Abstract
Abstract A solid adsorption air conditioning apparatus and process for cooling and heating which is compact in size and particularly adapted to low capacity and which may be at least partially solar powered and air cooled. The apparatus and process utilizes water vapor as refrigerant working within a hermetically sealed module. The hermetically sealed module has opposing thermally conductive walls which are internally coated with water vapor adsorbent material and thermally insulated from each other. The water vapor working fluid is desorbed from the adsorbent on the interior of a first side by heating while removing heat from the opposing second side causing the working fluid to adsorb in a condenser function at the second side and then applying heat to the second side while removing heat from the first side causing the working fluid to desorb from the second side and adsorb at the first side functioning as an adsorber while the second side is functioning as an evaporator and recycling said thermal condition sequence to provide desired conditioning to an air conditioned space.
Inventors
- 👤 Sanford A. Weil
- 👤 William F. Rush
- 👤 Jaroslav Wurm
- 👤 Raymond J. Dufour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:08
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1423; F25; F25B; F25B17/00; F25B17/08; F25B27/00; F25B27/002; F25B27/007; F24F2203/00; F24F2203/10; F24F2203/1004; F24F2203/1016; F24F2203/1032; F24F2203/1036; F24F2203/104; F24F2203/1048; F24F2203/1052; F24F2203/1056; F24F2203/1064; F24F2203/1068; F24F2203/1096; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
A process for air conditioning comprising the steps: generating water vapor working fluid by desorption from an adsorbent on the interior of a first side of a hermetically sealed module by heating said first side while removing heat from the opposing second side of said hermetically sealed module, both of said sides being internally coated with water vapor adsorbent material and thermally insulated from each other, causing said working fluid to adsorb in a condenser function at said second side; then applying heat to said second side while removing heat from said first side causing the working fluid to desorb from said second side and adsorb at said first side functioning as an adsorber, said second side functioning as an evaporator by desorption of said working fluid from said adsorbent; and recycling said thermal condition sequence to provide desired conditioning to an air conditioned space.
Claim 2
Dependent Claim
145 words
A process for air conditioning comprising the steps: generating water vapor working fluid by desorption from an adsorbent on the interior of a first side of a hermetically sealed module by heating said first side while removing heat from the opposing second side of said hermetically sealed module, both of said sides being internally coated with water vapor adsorbent material and thermally insulated from each other, causing said working fluid to adsorb in a condenser function at said second side; then applying heat to said second side while removing heat from said first side causing the working fluid to desorb from said second side and adsorb at said first side functioning as an adsorber, said second side functioning as an evaporator by desorption of said working fluid from said adsorbent; and recycling said thermal condition sequence to provide desired conditioning to an air conditioned space.
Claim 3
Dependent Claim
37 words
The process of claim 1 wherein cooled air is provided to said air conditioned space by passing an airstream to be cooled in thermal exchange relation to said second side while it is functioning as an evaporator.
Claim 4
Dependent Claim
37 words
The process of claim 1 wherein heated air is provided to said air conditioned space by passing an airstream to be heated in thermal exchange relation to said first side while it is functioning as an adsorber.
Claim 5
Dependent Claim
74 words
The process of claim 1 wherein multiple modules are used in a fashion whereby a first airstream is passed exterior to and between first sides of adjacent modules, said first sides performing the same functions while a second airstream is passed external to and between opposing second sides of adjacent modules, said second sides performing the same functions, alternate airstreams performing the same function with respect to the module sides adjacent to the airstreams.
Claim 6
Dependent Claim
11 words
The process of claim 1 wherein said adsorbent is molecular sieve.
Claim 7
Dependent Claim
24 words
The process of claim 1 wherein said adsorbent is selected from the group consisting of lithium chloride, lithium bromide, natural zeolites and molecular sieves.
References Cited (Backward Citations)
US1790757A
Cited
US992560A
Cited
US1467053A
Cited
US2659215A
Cited
US2871674A
Cited
US3411318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |