Carburetor having air fuel ratio adjusting means

Details Carburetor having air fuel ratio adjusting means Carburetor having air fuel ratio adjusting means

1982-11-30

1984-09-25

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261121B, F02M 724

Patent

active

044735103

ABSTRACT:
In a carburetor system having a main fuel passage for supplying fuel from a float chamber to a main fuel discharge nozzle and an air bleed pipe inserted into the main fuel passage, there is provided an auxiliary air introduction passage for additionally supplying air so as to adjust the air fuel ratio. The auxiliary air passage comprises a primary air passage having an upstream end communicating with the atmosphere and a downstream end opening into the main fuel passage below the fuel level, and a secondary air passage which branches off from the primary air passage and opens into the main fuel passage at a predetermined height above the fuel level. The cross sectional area of the secondary air passage is smaller than that of the primary air passage.

REFERENCES:
patent: 4129622 (1978-12-01), Tamazawa et al.

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