Robert Boschgmbh

Ulrich Lessing

Karl Hofmann

Pawel Drabarek

Bernhard Kaczynski

Jochen Straehle

Alfred Knauer

Heinz-Arno Marto

Michael Leukart

Reiner Kaess

Roland Zucker

Ursula Schoedel

Gerhard Ortner

Fabian Wolf

Ferdinand Nicolai

The invention relates to a fuel injector (), comprising a nozzle body () in which a blind hole () is formed, wherein at least one injection opening () leads off same, comprising a nozzle needle (to) that is reciprocatingly movable along a longitudinal axis (), wherein the nozzle needle (-) has a valve seat () which forms a sealing seat () with a seating surface () in the nozzle body () in a lowered position of the nozzle needle (-), and comprising at least one borehole (-) in the nozzle needle (-), wherein at least some portions of a borehole inlet () of the at least one borehole (-) are located in the region of the seating surface () when the sealing seat () is formed, and a borehole outlet () of the at least one borehole (-) is located below the valve seat () of the nozzle needle (-) in the direction of the longitudinal axis ().

Fuel injector

A device for the tactile determination of a surface shape of a measuring object includes a micro probe arm having a stylus tip, the micro probe arm being fastened on an optical fiber having a fiber end, which is mounted in a probe housing, a reference mirror is provided in the probe housing, and an optical measuring device is provided for determining the position of the fiber end in relation to the reference mirror. The contactless interferometric determination of the distance between the fiber end of the optical fiber and the reference mirror attached in the probe housing allows precise determination of the surface shape of the measuring object.

Tactile microprobe arm fastened to freestanding end of an optical fiber

A method and apparatus for measuring injection bores of fuel injection valves for internal combustion engines, in which the injection valve including the bores to be measured is fastened in a receiving device and the bore is measured with a measuring device. The ascertainment of the location and geometry of the bore to be measured is done by means of an optoelectronic measuring method such as a camera.

Method for measuring injection bores of fuel injection valves for

Fuel injection nozzle for internal combustion engines

Growing community of inventors

Stuttgart, Germany

Ulrich Lessing