Robert Boschgmbh

Jan Tremel

Markus Feigl

Hendrik Jahnle

Roman Poltoratski

Lukas Loeber

Thomas Stach

James Doetsch

Peter Rueck

Timo Dehm

Philipp Breinlinger

Theresa Sophia Boettinger

Antonius Gress

Tobias Kolb

A method for producing an injector which is designed in particular to inject fuel into an induction pipe or directly into a combustion chamber of an internal combustion engine. The method includes providing an injector base element, providing a rod that is insertible into a through hole of the injector base element, producing a negative matrix of a spray orifice element on an axial end of the rod, inserting the rod into the through hole of the injector base element, positioning the negative matrix situated on the rod relative to the injector base element, producing the spray orifice element having at least one spray orifice by applying a galvanization layer on a downstream end, in the injection direction, of the injector base element and on the negative matrix, and removing the rod and the negative matrix.

Method for producing an injector

Extruder () for a 3D printer, comprising at least one outer nozzle () and a conveying worm () for feeding liquid and/or plasticized starting material () into the interior chamber () of the outer nozzle (), wherein an inner nozzle () is arranged in the interior chamber () of the outer nozzle (), wherein the interior chamber () of the inner nozzle () is connected to the interior chamber () of the outer nozzle () via at least one duct () which is continuous for the starting material (), and wherein the inner nozzle () is mounted such that it can be moved linearly along the longitudinal axis () of the outer nozzle (). A 3D printer () having the extruder () and means () for generating a relative movement between the extruder () and a construction surface (), on which the object () to be manufactured is produced.

Extruder for a 3D printer with a variable material throughput

Growing community of inventors

Erlangen, Germany

Jan Tremel