Non-lubricated rotary pump with discharge through end heads

Details Non-lubricated rotary pump with discharge through end heads Non-lubricated rotary pump with discharge through end heads

1979-10-12

1982-02-16

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418133, 418156, 137854, F04C 2700

Patent

active

043157190

ABSTRACT:
A rotary fluid pump of a non-lubrication type having a pump cavity formed within a cylindrical stator housing and a pair of recessed end head assembles. A drive shaft is eccentrically journalled in the end heads with a rotor mounted thereon with vanes slidably disposed in radial grooves in the rotor. A pair of sealing plates disposed between the ends of the stator having and the end heads divide the pump cavity into a pair of end chambers and an intermediate rotor chamber. An outlet port provides fluid communication between the rotor chamber and a discharge hole in one of the end chambers so that fluid passage for discharge to the atmosphere is provided through the rotor chamber, outlet port, end chamber and discharge hole.

REFERENCES:
patent: 2437791 (1948-03-01), Roth et al.
patent: 3311064 (1967-03-01), Eichele et al.
patent: 3941149 (1976-03-01), Mittleman
patent: 3964844 (1976-06-01), Whitmore et al.

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