Rotors for a screw rotor machine

Details Rotors for a screw rotor machine Rotors for a screw rotor machine

1976-09-13

1978-05-09

Croyle, Carlton R.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

F04C 1712

Patent

active

040884279

ABSTRACT:
A pair of cooperating rotors for a screw rotor machine, comprising a main rotor with a dedendum and a gate rotor with an addendum. One flank of each gate rotor land is generated inside the pitch circle of the gate rotor by the crest of the main rotor land and is generated outside the pitch circle by a portion of the main rotor inside the pitch circle and is formed to sealingly cooperate with the main rotor land so that gear action is obtained only outside the pitch circle of the gate rotor and inside the pitch circle of the main rotor.

REFERENCES:
patent: 3314598 (1967-04-01), Lysholm
patent: 3414189 (1968-12-01), Persson
patent: 3423017 (1969-01-01), Schibbye
patent: 3640649 (1972-02-01), Persson

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