Pumps – Processes – Of pumping one fluid by contact or entrainment with another
Patent
1988-09-30
1989-09-12
Croyle, Carlton R.
Pumps
Processes
Of pumping one fluid by contact or entrainment with another
417151, 417198, F04F 500
Patent
active
048655180
ABSTRACT:
This invention relates to ejector pumps, thrust- and lift-augmenting ejectors, and, more generally, to devices that are capable of inducing the flow of a fluid through direct transfer of energy and momentum to it from jets of another fluid. The efficiency of the energy exchange is increased if it is made to take place, at least in part, through the nondissipative work of interface pressure forces. This invention describes a method and apparatus for the generation, control, and utilization of this nondissipative component. The method described here imparts a transverse, paddle-like motion to the energizing jets without, however, imparting the same motion to the fluid particles that make up the jets themselves, hence at no cost in energy input. Energy is transferred from these "fluid paddles" to the surrounding fluid largely through the work of interface pressure forces.
REFERENCES:
patent: 1192855 (1916-08-01), Buss
patent: 3046732 (1962-07-01), Foa
patent: 4239155 (1980-12-01), Foa
Cryptosteady Modes of Direct Fluid-Fluid Energy Exchange, J. V. Foa and C. A. Garris, 1984, published by A.S.M.F.
Blackmon Robert N.
Croyle Carlton R.
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