Carburetor for an internal combustion engine

Details Carburetor for an internal combustion engine Carburetor for an internal combustion engine

1994-10-19

1995-08-15

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

261DIG68, 261 35, 261DIG38, 261 415, F02M 1704

Patent

active

054416736

ABSTRACT:
The invention is directed to a carburetor for an internal combustion engine and includes an intake channel having a throttle flap mounted therein. Fuel passes from a fuel-filled control chamber via channels to main and idle nozzles through which the fuel enters the intake channel. The maximum permissible fuel quantity must be adjusted during a test run be means of an adjusting screw. This value can be changed by an operator. The maximum flow cross section for the fuel throughput is limited by at least one fixed throttle to which the main nozzle and the idle chamber are connected at the downstream end. In this way, strict exhaust-gas limit values are maintained. An adjustable throttle is provided with the aid of which the entire flow cross section can be reduced up to a pregiven minimum value. The carburetor described above is especially suitable for two-stroke engines of portable handheld work apparatus.

REFERENCES:
patent: 2711883 (1955-06-01), Reeves
patent: 2733902 (1956-02-01), Phillips
patent: 2951690 (1960-09-01), Eberline
patent: 3170006 (1965-02-01), Brown
patent: 3353525 (1967-11-01), Nutten et al.
patent: 3391909 (1968-07-01), Sarto
patent: 3409277 (1968-11-01), Reise
patent: 3593967 (1971-07-01), Nutten
patent: 3758084 (1973-09-01), Tuckey
patent: 3791632 (1974-02-01), Donovan
patent: 3933949 (1976-01-01), Woody

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