Robert Boschgmbh

Stefan Kolb

Holger Rapp

Andreas Dutt

Achim Koehler

Achim Meisiek

Christian Langenbach

Tobias Landenberger

Tobias Reiser

Francesco Lucarelli

Steffen Holm

Gabriel Cichon

Hans Heber

Gernot Repphun

Michael Imhof

Namik Karaosmanoglu

Markus Grieb

Bjoern Laibacher

The invention relates to an electromagnetically controllable suction valve () for a high-pressure fuel pump (), comprising a magnet assembly () and a hydraulic module (), the hydraulic module () engaging at least in sections in an annular magnet coil () of the magnet assembly (). According to the invention, a heat-conducting material () and/or a heat-conducting body () is/are arranged between the magnet coil () and the hydraulic module (). The invention further relates to a method for producing an electromagnetically actuatable suction valve ().

Electromagnetically actuatable suction valve and method for producing an electromagnetically actuatable suction valve

A valve, in particular a suction valve (), in particular in a high-pressure pump of a fuel injection system, has a valve element () that moves between an open position and a closed position, comprising a magnet armature () which is in mechanical contact with the valve element () in the axial direction and which is in contact with a first pressure spring () on the side facing away from the valve element (), and wherein the magnet armature () can be axially moved via an electromagnetic actuation and same is supported in a starting position on a valve body () via a stop plate (). The stop plate () is held in contact with the valve body () via a securing element ().

Valve, in particular a suction valve, in a high-pressure pump of a fuel injection system

The invention relates to an electromagnetically actuable intake valve for a high-pressure pump of a fuel injection system, in particular of a common-rail injection system, comprising a reciprocating valve closure element () that engages with a valve seat () and is loaded in the closing direction by the spring force of a valve spring () which is supported on a spring plate () connected to the valve closure element (), further comprising a reciprocating armature () that engages with an electromagnet () and is loaded in the direction of the valve closure element () by the spring force of an armature spring () which is larger than that of the valve spring (). According to the invention, the spring plate () has a first abutment face () for limiting the opening travel of the valve closure element () and a second abutment face () for mechanically coupling to the armature (). The invention also relates to a high-pressure pump having such an intake valve.

Electromagnetically actuable intake valve for a high-pressure pump, and high-pressure pump

An electromagnetically actuated valve comprising a valve piston including a first end and an opposite second end, a valve plate at the first end of the valve piston, a spring plate which is fastened to the second end of the valve piston and which has a first planar contact surface, a valve spring that lies against the spring plate and that moves the valve plate into a closed position, and an electromagnet including a coil, an armature pin which has a second planar contact surface that is parallel relative to and that bears against the first planar contact surface, and an armature arranged on the armature pin, wherein the first planar contact surface and the second planar contact surface each have a diameter that is greater than a greatest diameter of the armature pin and a diameter of the second end of the valve piston.

Electromagnetically actuated valve

An electromagnet of an electromagnetically actuated fluid valve includes a magnet core that receives a coil, and an armature unit that can be moved axially relative to the coil in the magnet core. The electromagnet further has a device for damping a stop of the armature unit against the magnet core. The device has a flow cross-section for a medium, the flow cross-section decreasing when the armature unit is moved. The cross-section can be formed by a cone that interacts with a counter surface.

Electromagnet of an electromagnetically actuated fluid valve

Growing community of inventors

Gaertringen, Germany

Stefan Kolb