An electromagnetic actuator for a valve mechanism, in particular in a common rail system of a motor vehicle, comprising an armature tappet for actuating a valve element located in a channel, and comprising a pole core, the armature tappet being movable axially along a central axis of the actuator when an excitation coil of an excitation system is energized. The pole core therefore has a tubular shape and has a circumferential flange in the area of the pole core end facing the channel, said flange extending inward in relation to the central axis.

A high-pressure fuel pump which includes a discharge valve with a valve ball and a valve body, the valve body having a sealing section on which a sealing seat is present, and having a guide section in which the valve ball is guided. The guide section includes a first plurality of axially protruding webs between which first flow paths are formed, an opening which faces radially outwardly being present at least between two adjacent webs.

The invention relates to an electromagnetically actuatable intake valve for a high-pressure pump of a fuel injection system, in particular a common rail injection system, comprising a magnet coil (1) for acting on an armature (2) which is received and guided such that it can be moved with a reciprocating movement in a central recess (3) of a valve body (4), wherein a pole core (6) which is connected via a sleeve (7) to the valve body (4) lies opposite the armature (2) at a working air gap (5). According to the invention, the valve body (4) has a circumferential cut-out (9) within an inner circumferential surface (8) which delimits the recess (3), which cut-out (9) divides the inner circumferential surface (8) into an upper and a lower guide region (10, 11). The invention also relates to a high-pressure pump for a fuel injection system, in particular a common rail injection system, comprising said type of intake valve.

A digital inlet valve is the complementary assembly of an armature module, a body module and an actuation module enabling direct control over an air gap between a magnetic armature and a pole piece body.

The present disclosure relates to internal combustion engines. Various embodiments of the teaching thereof may include a fluid injection device for internal combustion engines, for example: a valve body with a valve needle; a spring element compressed in a radial direction between the valve body and the valve needle; the spring element supporting the valve needle on the valve body; and the spring element guiding the valve needle to at least substantially prevent tilting of the valve needle relative to the longitudinal axis during operation of the fluid injection device.

An electromagnetic actuator of a valve device, in particular in a common rail system of a motor vehicle, comprising an armature for actuating a valve element located in a duct, said armature being arranged in a housing and being movable axially along a longitudinal axis of the actuator when an excitation coil is energized, further comprising a pole core, characterized in that the electromagnetic actuator is designed as an electromagnetic adhesive system that comprises a plate-type armature which entirely covers planar end faces of the pole core that extend orthogonally to the longitudinal axis.

A pressure control valve for a fuel injection system, in particular a common-rail injection system, for controlling pressure in a high-pressure fuel reservoir, includes a magnetic actuator configured to actuate a spherical valve closing element. The magnetic actuator interacts with a reciprocatingly displaceable armature that is connected to an armature pin in order to transmit a force of the magnetic actuator to the spherical valve closing element. At least one of the spherical valve closing element and the armature pin is axially displaceably guided in a valve piece which forms a valve seat configured to interact with the spherical valve closing element.

There is disclosed a solenoid valve for a fuel injection system, in which solenoid valve a closing element which interacts with a valve seat in order to close and open the solenoid valve is actuated by a control pin, the control pin being formed by way of a solenoid plunger. Furthermore, a high pressure fuel pump is disclosed which has a solenoid valve of this type.

A method for regulating a common rail injector, the method including acquiring a signal of a sensor, which signal is proportional to a pressure in a valve space of the common rail injector; evaluating a change in the signal over time in order to detect at least one operating event of the common rail injector; and modifying at least one operating variable of the common rail injector as a function of the at least one operating event, the at least one operating variable being selected from an opening duration, a closing duration, an opening point in time, and a closing point in time of a switching valve of the common rail injector, and from an opening duration, an opening point in time, and a closing point in time of a needle valve of the common rail injector.

The fuel injection valve has a hydraulic control device for controlling the axial movement of the injection valve member. The stem of the intermediate valve member of mushroom-shaped configuration of the intermediate valve is guided in the guide recess of the intermediate part. In the open position, the intermediate valve member opens up a second connection between a high-pressure fuel inlet and a valve chamber and, in the closed position, the intermediate valve member shuts off the second connection between the high-pressure fuel inlet and the valve chamber. In the closed position of the intermediate valve member, the head of the intermediate valve member lies with a side facing toward the intermediate part against the intermediate valve seat via a first sealing surface, which runs around the stem or the guide recess at a first radial spacing so as to form a first annular sealing surface which is continuous in the circumferential direction.