Pumps – One fluid pumped by contact or entrainment with another – Liquid piston
Patent
1984-02-08
1985-08-20
Gluck, Richard E.
Pumps
One fluid pumped by contact or entrainment with another
Liquid piston
417103, 417900, F04F 1100, F04B 1502
Patent
active
045361312
ABSTRACT:
Slurry consisting of water and solid material is fed to fill a plurality of supply chambers arranged in parallel to each other, by the action of slurry pump. The filled slurry is forced to a transferring pipe by the liquid pressure of a high pressure driving liquid pump. A float is positioned on an interface between the slurry and driving liquid within the supply chamber. When a sensor for detecting the position of the float is inoperative due to an external turbulence or the like, a command signal is applied to selected valves in response to a period of time set in a timer.
REFERENCES:
patent: 3005417 (1961-10-01), Swaney
patent: 3907462 (1975-09-01), Kroeger
patent: 3991825 (1976-11-01), Morgan
patent: 4321016 (1982-03-01), Sakamoto et al.
Kamino Yukishige
Saito Makoto
Sakamoto Masakatsu
Uchida Kenji
Gluck Richard E.
Hitachi , Ltd.
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