Patent ID: 6349703
Filing Date: 2002-02-26
Classification: F02M

Abstract:
A pressure regulating valve for a storage-type fuel injection system for internal combustion engines for regulating the pressure in a fuel reservoir (12), comprising a pistonlike valve member (128), guided axially displaceably in a bore (26) counter to a force of a closing spring (36), the valve member acts in the closing direction on a closing element (50) and presses the closing element against a valve seat (48), and the valve member (128) forms an armature of an electromagnet (32), the electromagnet can be supplied with current to reinforce the closing force of the closing spring (36), in that the valve member (128) has guide portions (154) which are embodied spherically, with jacket lines curved convexly in axial longitudinal sections and are offset from one another axially, by way of which the valve member is guided in the bore (26), and that the valve member (128) has a smaller cross section outside the guide portions (154) than in the region of the guide portions (154).