Heated Zirconia Oxygen Sensor for Stoichiometric and Lean Air-Fuel Ratios

Autor:	Rainer Dipl Phys Dr Noack, Hans-Martin Wiedenmann, Lothar Raff
Rok vydání:	1984
Předmět:	Internal combustion engine Chemistry AFR sensor Service life Electric heating Mechanical engineering Exhaust gas Cubic zirconia Composite material Oxygen sensor Heat engine
Zdroj:	SAE Technical Paper Series.
ISSN:	0148-7191
DOI:	10.4271/840141
Popis:	This publication describes the design and operation of an electrically heated ZrO/sub 2/ sensor and demonstrates its advantages in comparison to the present unheated sensor in a lambda = 1 system. Control ability down to very low exhaust temperatures, minimized temperature dependence and reduced aging effects result in lower emissions with the heated sensor. The application advantages in a lambda = 1 system are discussed. The second part of the paper describes the properties of this heated sensor for measurement of lean exhaust gas. The lambda-range 1.0 to 1.5 can be covered without any additional temperature compensation with sufficient accuracy and stability over life time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9df16009a1bdc3ce740c7f3e84b35745 https://doi.org/10.4271/840141 Zobrazit plný text záznamu