Method of making screw rotor machine rotors

Details Method of making screw rotor machine rotors Method of making screw rotor machine rotors

1977-04-27

1978-08-29

DiPalma, Victor A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29407, 51105HB, 51287, 90 4, B23P 1500

Patent

active

041093623

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: 2652192 (1953-09-01), Chilton
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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