| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection system that prevents a change in timing of starting displacement of a pressing member. <P>SOLUTION: A control body 40 includes a pressure control chamber 53, an inflow port 52a for receiving the fuel into the control chamber 53 and an outflow port 54a for discharging the fuel from the control chamber 53. The inflow ports 52a and the outflow ports 54a are open into a contact surface 90 exposed to the pressure control chamber 53. In the pressure control chamber 53, a floating plate 70 for blocking the inflow port 52a and the pressure control chamber 53 by pressing the contact surface 90 by the fuel pressure, is disposed. In the fuel injection system 100, in each of inner wall surfaces 56a and outer wall surfaces 70a of the floating plate 70 surrounding the contact surface 90, in at least either an external wall surface part 72 or a control wall surface part 57 to be in contact with each other, a concave part 57a concaved in direction toward separating from the surface parts 57 or 72, is formed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
