Micro pump powered by piezoelectric disk benders

Details Micro pump powered by piezoelectric disk benders Micro pump powered by piezoelectric disk benders

1975-01-06

1976-06-15

Freeh, William L.

Pumps

Motor driven

Magnetostrictive chamber

417412, 417505, 128 1D, 3 17, F04B 1700, F04B 3500, F04B 3908, F04B 4506

Patent

active

039633802

ABSTRACT:
The pump has a piezoelectric variable volume chamber and a solenoid controlled valve operated in sequence to pump small volumes of liquid. The sequence is produced by developing a phase difference between the control of the piezoelectrical chamber and the solenoid valve.

REFERENCES:
patent: 2967993 (1961-01-01), Eckerle et al.
patent: 3029743 (1962-04-01), Johns
patent: 3215078 (1965-11-01), Stec
patent: 3556679 (1971-01-01), Middlebasher et al.
patent: 3735245 (1973-05-01), Stigvils
patent: 3857382 (1973-09-01), Williams et al.
the Piezoelectric Artificial Heart, Kosch et al., vol. X, Trans. Amer. Soc. Artif. Int. Organs, 1964, pp. 147-150.
Design of Piezoelectric Heart Assist Device, Williams et al., I.E.E.E. Transactions on Biomedical Engineering, vol. BME22, pp. 40-45, Jan. 1975.

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