Patent ID: 6997168

Claim:
A fuel supply system for internal combustion engines, comprising, a fuel tank ( 1 ) and a fuel reservoir ( 5 ) disposed therein, means ( 11 , 13 , 21 ) for filling the fuel reservoir ( 5 ) with fuel from the fuel tank ( 1 ), and a fuel line ( 7 ) that hydraulically connects the fuel reservoir ( 5 ) to an engine, the means ( 11 , 13 , 21 ) for filling the fuel reservoir ( 5 ) feeding fuel into the fuel line ( 7 ) at least part of the time during operation further comprising a 3/2-port directional-control valve disposed between the means ( 11 , 13 , 21 ) for filling the fuel reservoir ( 5 ) and the fuel line ( 7 ), the 3/2-port directional-control valve in its first switched position connecting the means ( 11 , 13 , 21 ) for filling the fuel reservoir ( 5 ) to the fuel line ( 7 ), and in its second switched position, the 3/2-port directional-control valve connecting the means ( 11 , 13 , 21 ) for filling the fuel reservoir ( 5 ) to the jet pump(s) ( 13 ).