Intermeshing pump rotor gears with involute and linear flank por

Details Intermeshing pump rotor gears with involute and linear flank por Intermeshing pump rotor gears with involute and linear flank por

1977-10-17

1980-10-14

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Like rotary members

F04C 218

Patent

active

042278694

ABSTRACT:
A pair of rotors for a rotary piston pump or blower is disclosed. The rotor flanks comprise an involute section for cooperation with a similar section on the other rotor. Inside the involute section the flank comprises a circular arc portion. Outside the involute section the flank comprises a substantially linear part resulting in reduced flow losses at high rotational speeds without the creation of a blow-hole between the outlet and the inlet of the machine.

REFERENCES:
patent: 325276 (1885-09-01), Roots
patent: 3089638 (1963-05-01), Rose
patent: 3640650 (1972-02-01), Wydler

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