Patent ID: 7753030
Filing Date: 2010-07-13
Classification: F01L,F02D,F02M

Abstract:
1. An accumulator-type fuel injection apparatus comprising pressurized fuel supply means for providing a supply of pressurized fuel, a common rail for holding the fuel that has been supplied under pressure from the pressurized fuel supply means, and a fuel injection valve that injects fuel that has been supplied from the common rail toward a combustion chamber of a main internal combustion engine unit, wherein the pressurized fuel supply means is furnished with a plurality of pressurized fuel supply units having pressurized supply passages that are independent of one another, wherein the accumulator-type fuel injection apparatus further comprises pressurized supply unit control means for forcibly stopping part of the pressurized fuel supply units when a fuel demand by the main internal combustion engine unit is less than or equal to a predetermined amount by stopping supply of fuel to the stopped part of the pressurized fuel supply units, so that only the remaining pressurized fuel supply units perform the operation of supplying pressurized fuel to the common rail.