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Dive into the research topics where Helge Schichlein is active.

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Featured researches published by Helge Schichlein.


Archive | 2005

Multilayer Ceramic Amperometric (MCA) NOx-Sensors Using Titration Principle

Berndt Cramer; Bernd Schumann; Helge Schichlein; Sabine Thiemann-Handler; Thorsten Ochs

The removal of nitrogen oxides from exhaust emissions of combustion processes containing substantial levels of oxygen is a challenging venture, especially in lean burn spark ignition and diesel engines for automobiles, trains and ships, and coal/oil-fired power stations. We have developed multilayer ceramic amperometric (MCA) NOxsensors made of an oxygen ion conducting ceramic like yttrium stabilised zirconia using a new operation mode, the titration mode, which measures the consumption of hydrogen reducing NOx.


Archive | 2008

Circuit arrangement for controlling air-fuel mixture of internal combustion engine, has measuring resistor detecting limiting current, and pump voltage adjusting unit adjusting pump voltage depending on supply voltage

Walter Scharf; Thomas Wahl; Stefan Nufer; Martin Lenfers; Markus Schmits; Juergen Nitzsche; Jochen Domscheit; Holger Reinshagen; Henrico Runge; Helge Schichlein; Christoph Bommas; Andreas Thomae; Alexander Hetznecker


Archive | 2009

Method for determining measure for water drop entry into exhaust gas channel of internal combustion engine, involves comparing rise of sensor signal with threshold value, and providing measure for water drop entry after exceeding value

Josef Hickl; Jan Hufnagl; Bernhard Kamp; Sascha Klett; Thorsten Ochs; Bernd Rattay; Sabine Roesch; Helge Schichlein; Henrik Schittenhelm; Thomas Zein


Archive | 2009

Method for determining measure of water entry into exhaust duct of internal combustion engine, involves determining measure of water entry according to measure of supplied heat energy by heating element of exhaust sensor

Jan Hufnagl; Helge Schichlein


Archive | 2004

Sensor element and method for determining ammonia

Thorsten Ochs; Helge Schichlein; Sabine Thiemann-Handler; Bernd Schumann


Archive | 2003

Method for measuring ammonia

Thorsten Ochs; Helge Schichlein; Bernd Schumann; Sabine Thiemann-Handler


Archive | 2011

Method for recording e.g. concentration, of gaseous fluid medium, in exhaust gas in exhaust passage of internal combustion engine of motor car, involved closing impinging of liquid from fluid medium by short term waste of temperature

Bettina Schmidt; Juergen Wilde; Jan Hufnagl; Helge Schichlein


Archive | 2011

Method for determining measurement for occurrence of reagent central drop in exhaust area of internal-combustion engine, involves arranging particle sensor, which has reagent central drop

Sabine Roesch; Josef Hickl; Bernd Rattay; Jan Hufnagl; Thomas Zein; Thorsten Ochs; Bernhard Kamp; Sascha Klett; Helge Schichlein; Henrik Schittenhelm


Archive | 2010

Exhaust gas mixture composition detecting method for e.g. diesel engine of motor vehicle, involves detecting composition of gas mixture based on temperature dependency of pump flow

Dirk Rady; Lothar Diehl; Helge Schichlein


Archive | 2008

Gas sensor for measuring a gas component in a gas mixture

Thomas Wahl; Bernd Schumann; Sabine Thiemann-Handler; Berndt Cramer; Helge Schichlein

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