Patent ID: 7770559

Claim:
Diaphragm carburettor comprising a diaphragm dosager ( 2 ) provided with a diaphragm ( 3 ) arranged so as to keep a first chamber at constant pressure ( 4 ) separate from a second chamber ( 5 ) communicating both with a fuel inlet line intercepted by a valve controlled by the diaphragm ( 3 ) itself, and with an outlet line for injecting fuel, said valve being operatively connected with said diaphragm ( 3 ), the aforementioned carburettor foreseeing an electromagnetic actuator ( 1 ) associated with said diaphragm ( 3 ) to control the opening and closing of said valve, characterised in that said actuator ( 1 ) comprises at least one mobile coil ( 6 ) arranged entirely in said first chamber ( 4 ) and directly fixed to said diaphragm ( 3 ), and a fixed magnetic field generator ( 7 ) suitable for guiding said coil ( 6 ), said actuator ( 1 ) controlling said diaphragm ( 3 ) and therefore said valve when electrical current passes through the coil ( 6 ).