To provide a diesel fuel injection device and a high-pressure liquid passage device capable of meeting a request for further increase in pressure of a high-pressure liquid fuel by using a novel method not by securing sealing performance by surface pressure.
This diesel fuel injection device 100 comprises first and second members 3 and 2 having partial passages 7 and 8 communicating with each other. The end face 31 of the first member 3 to which the partial passage 7 is open and the end face 30 of the second member 2 to which the partial passage 8 is open are kept in a press-fitted state. A cylindrical member 34 is inserted into these two partial passages 7 and 8, and a press-fitted portion 35 between these two end faces 31 and 30 is closed by the cylindrical member 34 from the passage wall surface side.
WO/2015/138987 | PRE-CHAMBER INJECTOR-IGNITER FOR GASEOUS FUEL COMBUSTION AND ASSOCIATED SYSTEMS AND METHODS |
WO/2013/143750 | STIFFENED FUEL INJECTION VALVE |
JP2008523310 | Fuel injector and poppet |
OHATA KOICHI
SAKO KOJI