Moineau pump with helicoidal coupling sleeve

Details Moineau pump with helicoidal coupling sleeve Moineau pump with helicoidal coupling sleeve

1982-01-12

1984-04-17

Vrablik, John J.

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

418182, 403302, 403313, F04C 200, F04C 1500, F16B 210, F16B 704

Patent

active

044431651

ABSTRACT:
The invention relates to improvements in or to Moineau pumps comprising a stator having an axial cavity, a helicoidal rotor adapted to rotate in said cavity of the stator by cooperating with it and coupling means to couple the rotor to another driving or driven rotary member. The helicoidal rotor projects axially out of the stator and the coupling means comprise a rigid and elongated coupling sleeve, hollowed by an axial housing of which the shape is complementary to that of the helix of the rotor, said sleeve being engaged on and gripping the end of the rotor projecting out of the stator.

REFERENCES:
patent: 2028407 (1936-01-01), Moineau
patent: 2739650 (1956-03-01), Hill
patent: 3879147 (1975-04-01), Morell

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