Volumetric machine with conical screws

Details Volumetric machine with conical screws Volumetric machine with conical screws

1983-12-19

1985-06-11

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

Each tapered

418152, 418178, 418201, F04C 18107

Patent

active

045225761

ABSTRACT:
The rotors (M, F) each have a conical outer profile and a constant pitch diameter, the rotors being mounted in opposition in the housing (1) with their axes (2, 3) parallel and their pitch diameters tangent (4). The grooves (5) of the female rotor (F) have a radial depth, in relation to the pitch diameter, which varies in inverse proportion to the outside diameter of the female rotor (F), and which, more specifically, have a circular cross-section the radius of which increases progressively in the direction of reduction of the outside diameter of the female rotor, the center of these radii remaining on the pitch diameter. The rotors are produced advantageously by molding a plastic or by casting a light alloy.

REFERENCES:
patent: 2745643 (1956-05-01), Kleinlein
patent: 3139834 (1964-07-01), Blomgren
patent: 3179330 (1965-04-01), MacColl
patent: 4362480 (1982-12-01), Suzuki

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