Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1982-06-04
1984-03-27
Rosenthal, Arnold
Gas and liquid contact apparatus
Fluid distribution
Valved
251208, 138 43, 138 45, F16K 332, F16K 4704
Patent
active
044393768
ABSTRACT:
A proportioning device for controlling fluid flow includes a pair of discs (1 and 6) mounted eccentrically face to face and rotatable about parallel axes. The discs are spring biassed towards each other so that a contact face (7) on disc (6) is in constant contact with a slide face (2) on disc (1) irrespective of the relative angular position of the discs. Disc (1) has a passage (4) for the flow of fluid to an outlet (5) in the slide face (2), and disc (6) has a contoured area (8) around its face (7). The axial spacing of flow outlet (5) from the immediately opposite portion of the contoured area (8) defines the free sectional area which determines the amount of fluid which can flow from the outlet. Contoured area (8) is shaped for varying the rate of flow in a predetermined manner by rotating one or both of the discs. Since rotation of the discs can be controlled independently, the flow of fluid can be controlled in dependence upon at least two different operating parameters. The device is particularly useful in a carburettor to control the supply of fuel mixed with air dependent upon the air throughput (determined by the shape of the contoured area (8)) but which can be modified (by turning the disc (1)) in accordance with one or more parameters related to the operation of the engine.
REFERENCES:
patent: 3899879 (1975-08-01), Downing
patent: 3934564 (1976-01-01), Barnert
Hartel Gunter
Schurfeld Armin
Bosch & Pierburg System OHG
Rosenthal Arnold
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