| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable running operation in the event of emergency in which adjusting is not performed by generating sufficiently high pressure to a valve outlet even at failure of a current supply, and enable adjustment over an entire pressure region at power feeding state. <P>SOLUTION: This pressure regulation valve is used in the accumulator fuel injection system for internal combustion engine, and adjusts a pressure in a fuel accumulator. In the pressure regulation valve, a valve member of a piston shape which is guided inside a hole movably in an axial direction is provided, the valve member acts on a closing element, the closing element is capable of being pressed into contact with a valve seat, and the valve member forms a movable element of an electromagnet capable of power feeding. The movable element 5 of the electromagnet 3 is formed as a permanent magnet, and magnetic force is capable of acting on the valve member 6 even when the power feeding is not performed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
