Roots type blower with reduced gaps between the rotors

Details Roots type blower with reduced gaps between the rotors Roots type blower with reduced gaps between the rotors

1986-07-25

1987-05-19

Vrablik, John J.

Rotary expansible chamber devices

Working chamber surface expressed mathematically

418206, F04C 1818

Patent

active

046663843

ABSTRACT:
A Roots type blower wherein a secondary gap distance for rotor is determined in accordance with a cross angle between a normal line at a point of the outer periphery of theoretical base curve of the rotor and a line extending through said point and the rotor center.

REFERENCES:
patent: 3275225 (1966-09-01), Schultz
patent: 3371856 (1968-03-01), Thelen et al.
patent: 4227869 (1980-10-01), Eriksson

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