Screw rotor machine rotors and method of making

Details Screw rotor machine rotors and method of making Screw rotor machine rotors and method of making

1976-01-02

1977-10-11

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

74458, F01C 116, F04C 1712, F16H 5508

Patent

active

040532631

ABSTRACT:
Screw rotors for a screw compressor or expander incorporating improved screw profiles on both male and female rotors wherein certain mating portions of the two rotor screws have involute profiles to provide conjugate action of these screw portions with minimum sliding motion of such mating portions and with the remaining non-involute screw portions having generally circular arc profiles so that gear cutting and measuring techniques can be used in the production of such screw rotors.

REFERENCES:
patent: 1412889 (1922-04-01), O'Brien
patent: 2462924 (1949-03-01), Ungar
patent: 3247736 (1966-04-01), Roth
patent: 3314598 (1967-04-01), Lysholm
patent: 3414189 (1968-12-01), Persson
patent: 3423017 (1969-01-01), Schibbye
patent: 3773444 (1973-11-01), Koch
patent: 3787154 (1974-01-01), Edstrom

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