US3658043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed cycle power system
Assignee: Aerojet Rocketdyne Inc
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Filing: 1969-08-20
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Granted: 1972-04-25
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Expires: 1989-08-20
Abstract
Abstract Apparatus for supplying breathing fluid to an internal combustion engine or the like. A lung humidifies oxygen from a source of oxygen such as H2O2 and a catalyst pack or gaseous or liquid oxygen to a mixture of oxygen to the engine. Means, such as a container of caustic solution and water vapor is provided so that the exhaust products from the engine, which includes gaseous oxygen, water vapor and carbon dioxide, are separated. The CO2 is absorbed in the caustic solution and the O2 is recirculated to the lung after it is combined with additional O2.
Inventors
- 👤 Lawrence C Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:12
CPC Classifications
F; F02; F02B; F02B47/00; F02B47/04; F02B47/08; F02B47/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
29 words
Apparatus according to claim 1 further including condenser means connected between said exhaust output of said engine and said recovery means for condensing water vapor in the engine exhaust.
Claim 2
Dependent Claim
16 words
Apparatus according to claim 2 further including means connecting said condenser means to said humidifier means.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 2 further including first cooler means connected between said condenser means and the engine output for cooling said engine exhaust.
Claim 4
Dependent Claim
38 words
Apparatus according to claim 1 further including regulator means for controlling the flow of oxygen from said source of oxygen to said combining means whereby oxygen from said source is supplementary to the oxygen from said recovery means.
Claim 5
Dependent Claim
23 words
Apparatus according to claim 1 wherein said source of oxygen includes a supply of hydrogen peroxide and means for decomposing said hydrogen peroxide.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 1 wherein said recovery means includes a carbon dioxide absorbent adapted to be exposed to the engine exhaust.
Claim 7
Dependent Claim
39 words
Apparatus according to claim 7 wherein said recovery means includes spray means for spraying said carbon dioxide absorbent through the engine exhaust, and pump means connected to said engine for pumping said carbon dioxide absorbent through said spray means.
Claim 8
Dependent Claim
27 words
Apparatus according to claim 1 wherein said humidifier includes second spray means for spraying water through the oxygen passing from said combining means to said intake means.
Claim 9
Dependent Claim
51 words
Apparatus according to claim 1 wherein said humidifier means includes a supply of water adapted to be exposed to oxygen received from said combining means, heater means for heating said water, and pump means connected to said engine and operable thereby for pumping water between said humidifier means and heating means.
Claim 10
Dependent Claim
28 words
Apparatus according to claim 10 further including means connecting said heater means to said recovery means whereby said heater means is heated by fluid from said recovery means.
Claim 11
Dependent Claim
16 words
Apparatus according to claim 1 further including a supply of fuel connected to said intake means.
Claim 12
Dependent Claim
30 words
Apparatus according to claim 12 further including regulator means connected to said fuel supply and responsive to pressure in said humidifier to control flow of fuel to said intake means.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |