Robert Boschgmbh

Bernd Beiermeister

Peter Ropertz

Heiko Jahn

Soeren Stritzel

Achim Laub

Ralf Assmann

Christian Preissner

Jochen Kaesser

Wolfgang Ochs

Guenter Krenz

Wolf-Ingo Ratzel

Hendrik Jahnle

Norman Lung

Gerold Kohlberger

Victor Roman

Zdenek Frcek

Vaclav Straus

Stefan Zaensch

Markus Menacher

Bjoern Billep

Alexander Ziegler

Stefen Zaensch

Bjoern Billepp

The invention relates to a method () for establishing a connection between an inlay () and a polymer () at least partially surrounding the inlay, wherein a monomer () is brought into contact () with the inlay () and is subsequently polymerized () to form the polymer (), wherein the temperature TE of the inlay () is increased () at least briefly at least to that temperature TM that the monomer () assumes at its maximum during its exothermic polymerization () to form the polymer (), and/or that ensures that the heat flow always runs from the inlay () to the monomer (). The invention also relates to a method (), (), () for the sealing integration of an inlay () in a component (). The invention also relates to a device () for carrying out the method (), comprising a conveyor () for a lead frame () in which a multiplicity of inlays () are able to be fed, and an at least two-part () mould () which is closable about an individual inlay () and has a feed () for feeding the monomer () into the space () between the mould () and the inlay (), wherein a current supply () is provided for the resistive and/or inductive heating () of the inlay () surrounded by the mould ().

Durably sealing connection between insert and polymer and production method therefor

A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.

Piston fuel pump for an internal combustion engine

A piston fuel pump for an internal combustion engine includes a pump cylinder, a pump piston, and a seal. The pump piston is configured to be moved axially in the pump cylinder, wherein a working chamber is delimited by the pump piston. The seal is disposed on the pump piston and seals off the working chamber from a low-pressure region. The seal seals off an end section of the pump piston adjacent to the working chamber from the working chamber.

An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height Hinto the composite element and forms a narrowed cross section in the composite element having a height H. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.

Multi-component injection-molded part with material-locking sealing

Growing community of inventors

Steinheim-Kleinbottwar, Germany

Bernd Beiermeister