Passive solar heater fluid pump system
US4246890A · kind A · utility
Inventors
Key dates
| Filing date | Aug 31, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Aug 31, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device making use of the gravity generated imbalance within a portion of the system confined upward and downward flowing liquid. A condensed gas of lower boiling point is induced to the portion of the upward flowing heated liquid of higher boiling point. The formation of gas bubbles upon evaporation of the condensed gas within the upward flowing heated liquid, causing fluid displacement thereof, thereby causing a imbalance between the upward flowing liquid and gas mixture, and the downward flowing solid liquid after being separated from the gas. Thus, gravity causing the continuous pumping action of the liquid throughout the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.