Patent ID: 8840048

Claim:
An injection valve for injecting fluid, comprising: a longitudinal axis, an injection valve housing with an injection valve cavity, a valve needle axially moveable within the injection valve cavity and comprising: a valve needle body defining a valve needle cavity in the valve needle body, a separation element fixedly arranged within the valve needle cavity in the valve needle body, the separation element dividing the valve needle cavity into a first fluid volume and a second fluid volume and comprising at least one fluid passage with a predetermined passage opening to hydraulically connect the first fluid volume with the second fluid volume, a sealing element axially moveable between a closing position in which a fluid injection is prevented by the sealing element and further positions in which a fluid injection is allowed, the location of the moveable sealing element defining the first fluid volume, wherein the valve needle body is axially movable relative to the sealing element in the closing position of the sealing element, and at least one preloaded spring element acting on the sealing element towards a maximum axial expansion of the valve needle.