| 摘要 |
PURPOSE:To prevent the pressure of injected fuel from being susceptible to pulation by reducing the pulsation of the pressure controlled by a pressure regulator which is provided for controlling the fuel pressure inside a fuel passage. CONSTITUTION:Since crank angles of the second and third cylinders differ from each other by 360 deg, a pressure takeout port 62 is placed in the lower course from a throttle valve 22 in an intake manifold of the second cylinder and a pressure takeout port 63 is similarly placed in the lower course from a throttle valve 23 in an intake manifold 13 of the third cylinder. The takeout ports 62 and 63 are connected to a three-way connecting pipe 67 by rubber pipes 65 and 66, respectively. The third exit of the three-way pipe 67 is connected to a diaphragm chamber 44 of a pressure regulator 4. Because internal pressures of the manifolds are take out from the cylinders whose crank angles differ from each other by 360 deg, those pulsated pressures interfere with each other and an average of them in respective cylinders may be taken out. |
