| 摘要 |
<p>The present invention relates to a valve of liquid operation, especially a fuel injection valve. The valve has a valve shell, wherein in the valve shell, on one hand, a valve body interacted with a valve seat is guided, especially a nozzle needle, on the other hand, an operating element interacted with the valve body is guided, i.e., the operating element causes the valve body to be pressed into a closed position facing the valve seat through a spring force of a spring element attaching to a spring plate position of the operating element, while fluid pressure at the valve body position raises the valve body from the valve seat against the spring force of the spring element, wherein fluid leaks and gathers in a spring cavity of the valve shell for containing the spring element and can be outputted from the valve through a leakage pipeline, and wherein, at least one hole is leaded in the spring plate of the operating element for connecting a sub-cavity of the spring cavity arranged at a first side of the spring plate with a sub-cavity of the spring cavity arranged at a second side of the spring plate.</p> |
