Heat driven pulse pump

Details Heat driven pulse pump Heat driven pulse pump

1998-08-07

2000-09-26

Solis, Erick

Pumps

By heating of pumped fluid

Vapor generator type

F04B 1924

Patent

active

061235121

ABSTRACT:
A heat driven pulse pump includes a chamber having an inlet port, an outlet port, two check valves, a wick, and a heater. The chamber may include a plurality of grooves inside wall of the chamber. When heated within the chamber, a liquid to be pumped vaporizes and creates pressure head that expels the liquid through the outlet port. As liquid separating means, the wick, disposed within the chamber, is to allow, when saturated with the liquid, the passage of only liquid being forced by the pressure head in the chamber, preventing the vapor from exiting from the chamber through the outlet port. A plurality of grooves along the inside surface wall of the chamber can sustain the liquid, which is amount enough to produce vapor for the pressure head in the chamber. With only two simple moving parts, two check valves, the heat driven pulse pump can effectively function over the long lifetimes without maintenance or replacement. For continuous flow of the liquid to be pumped a plurality of pumps may be connected in parallel.

REFERENCES:
patent: 3898017 (1975-08-01), Mandroian
patent: 4004441 (1977-01-01), Leszak
patent: 4451210 (1984-05-01), Shaubach et al.
patent: 4470759 (1984-09-01), Kosson
patent: 4556368 (1985-12-01), Jean et al.
patent: 4640667 (1987-02-01), Trepp
patent: 4765396 (1988-08-01), Seidenberg
patent: 4792283 (1988-12-01), Okayasu
patent: 4954048 (1990-09-01), Ohrt
patent: 5725049 (1998-03-01), Swanson et al.
Design, Development and Test of Capillary Pump Loop Heat Pipe; by E. J. Kroliczeck, et al.; AIAA 19th Thermophysics Conference; Snowmass, Colorado; Jun. 25-28, 1984.

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