Screw compressor with involute profiled teeth

Details Screw compressor with involute profiled teeth Screw compressor with involute profiled teeth

1975-06-09

1977-06-07

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

74458, F01C 116, F16H 5504, F04C 1712

Patent

active

040280268

ABSTRACT:
A screw-type gas compressor has a pair of meshing rotors each formed with a plurality of helical ribs. The flanks of the ribs of one of these rotors are generally convex and at least partially formed as involutes. The flanks of the ribs of the other rotor are generally concave and at least partially formed as involutes. These shapes are formed by the rack-generating process or by hobbing.

REFERENCES:
patent: 1412889 (1922-04-01), O'Brien
patent: 1453395 (1923-05-01), Labberton
patent: 1690931 (1928-11-01), Hammar
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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