| 摘要 |
PURPOSE:To reduce a pressure loss between a solenoid valve and an operating chamber and permit to supply fuel proportional to the opening time of a valve by making the opening of the inlet port larger than the opening area of a choked part. CONSTITUTION:When the solenoid valve 22a is opened under a fuel sucking condition in which the inflow part 12 of a rotary distributor 1 is communicated with an inflow path 10, pressurized fuel from a supply pump inflows into the operating chamber 14. Accordingly, a shaft 9 is pushed down and the fuel in an intermediate chamber 20 inflows into a low pressure chamber 17. At this time, a timing inflow path 11 is formed so as to coincide with a timing inflow port 13, therefore, the pressurized fuel inflows into a timing operating chamber 15 when the solenoid valve 22b is opened. When the amount of fuel, inflows into the timing operating chamber 15, increases, plungers 7a, 7b move toward outsides thereof mutually. The timing inflow path 11 is choked in the same condition as the inflow path 10. |
