Liquid seal pump of the helical screw type

Details Liquid seal pump of the helical screw type Liquid seal pump of the helical screw type

2006-04-18

2006-04-18

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

C415S111000

Reexamination Certificate

active

07029231

ABSTRACT:
Liquid seal pump of the helical screw type including a pump housing (3) with an inlet (2), an outlet (6), and within the housing provided a helical screw rotor (7) driven by means of a motor (8). The outlet (6) of the pump (3) is provided with a sealing liquid tank (4) for supplying of liquid to the pump and thereby maintaining the liquid seal under idle running of the pump.

REFERENCES:
patent: 3265293 (1966-08-01), Benedictus
patent: 3575539 (1971-04-01), Hanick
patent: 287350 (1988-10-01), None

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