I.C. engine fuel injection control

摘要

In order to produce an ignitable mixture in the vicinity of a spark plug in an i.c. engine combustion chamber the fuel-air ratio of fuel and air cylically delivered through a valve 43 into the combustion chamber or air intake is controlled during the delivery at least under low load engine operating conditions. The valve 43 controls delivery from a chamber 32 connected to a supply of air under pressure and receiving fuel metered by a device 30. Control of fuel delivery into the chamber 32 when the valve 43 is open provides for variation of the fuel-air ratio of the mixture being discharged by the valve.