Andreas Stihl Ag Co. Kg

Staiger Gmbh & Co. Kg

Jens Peter Ramler

Wolfgang Layher

Felix Mayer

Hiroyuki Oka

Hideki Watanabe

Georg Maier

Patrick Schlauch

Patrick Levien

Marc Staiger

Peter Kofink

Stefan Waldinsperger

Marcus Wieduwilt

Takumi Nonaka

Bruno Staiger

The invention relates to an electromagnetic valve having a valve housing () and a valve opening () with a valve seat () and an electric drive coil () and a magnetic yoke () and a longitudinal centre axis (). The magnetic yoke () is assigned a metallic plate armature () which is mounted movably and has an armature disc (). The armature disc () lies sealingly with a sealing surface () against the valve seat () in a first switching position of the valve, and opens the valve seat () in a second switching position of the valve. According to the invention, the valve seat () is configured on a valve component (), wherein the valve component () has at least one valve opening () which lies at a radial spacing (r) from the longitudinal centre axis (). The valve seat () of the valve opening (), which valve seat () corresponds with direct body contact with the sealing surface () of the armature disc () of the plate armature (), consists of metal.

Electromagnetic valve

A solenoid valve for a fuel system has an electric coil and an armature disposed in a housing. A preassembled valve unit with valve seat, valve member, valve spring, and armature plate connected captively to each other is provided. In the valve unit, the valve seat is loosely secured between valve member and armature plate. The valve unit is inserted and secured in an open housing end and the valve spring contacts an inner shoulder of the housing. Armature plate and armature form a magnetic circuit. The valve member is supported on the armature plate and switched to open and close an outlet of the valve seat. By suppling current, a magnetic field is generated in the armature and attracts the armature plate into an operative valve position. The valve spring returns the armature plate into a rest position when the coil is currentless.

Solenoid valve for a fuel system

An electromagnetic fuel valve has a valve chamber, a valve element and a valve seat assigned to the valve element. The valve chamber is delimited by an electromagnetic drive which moves the valve element relative to the valve seat. The drive includes a receiving housing for a coil carrier with an electrical coil. A magnet core is inserted into the coil carrier and has an end section facing the valve element. At an open sealing end facing toward the valve chamber, a sealing element is arranged between the end section of the magnet core and the receiving housing. To achieve good sealing, that end section of the magnet core situated in the sealing element expands the sealing element and compresses the material thereof radially against the edge of the sealing end of the receiving housing to seal the valve chamber to the interior space of the receiving housing.

Electromagnetic fuel valve

Growing community of inventors

Backnang, Germany

Jens Peter Ramler