Fuel injection valve, for an internal combustion motor, has a drilling through the valve body with hydraulic fluid to set the jet needle position

摘要

The fuel injection valve (100) has a valve body (110) and a jet body (200). A drilling (120) through the valve body is linked to a drilling (280) through the jet body. A jet needle (250) is within the jet body drilling to open and close the injection opening. The valve body drilling is filled with a hydraulic fluid (140). The valve body has a control chamber(135) with a servo valve (130) to set the pressure of the hydraulic fluid to control the position of the jet needle.