FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE WITH SUBBCHAMBER

摘要

PURPOSE:To promote combustion in a sub-chamber and reduce generation of injurious gas by providing a fuel injection valve with a plurality of nozzles and directioning one of the nozzles toward an ignition plug in an internal combustion engine with sub-chamber having the fuel injection valve and the ignition plug. CONSTITUTION:A sub-chamber 13 is formed in a cylinder-head portion 4 and the sub-chamber 13 is communicated with a main combustion chamber 6 formed above a piston 2 tangentially through a communicating path 14. The sub-chamber 13 is divided into an upper chamber 13a and a lower chamber 13b by a central bulkhead 9, and a fuel injection valve 16 is arranged in the upper chamber 13a, while an ignition plug 18 is arranged in the lower chamber 13b at an opposite position of the communicating path 14. A plurality of nozzles are provided on the fuel injection valve 16 and at least a part A of fuel injected from the nozzles is directioned toward the ignition plug 18.