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AFR sensor: Air- fuel ratio, Zirconium, Oxygen sensor, Motor vehicles, Stoichiometric, Engine Control Module, Gasoline engine - Softcover

 
9786131775604: AFR sensor: Air- fuel ratio, Zirconium, Oxygen sensor, Motor vehicles, Stoichiometric, Engine Control Module, Gasoline engine
Softcover
ISBN 10: 6131775605 ISBN 13: 9786131775604
Verlag: OmniScriptum, 2010

Inhaltsangabe

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The AFR sensor is an air-fuel ratio sensor that is slowly replacing the Zirconium oxygen sensor (O2 sensor) in modern motor vehicles. The early introduction of the oxygen sensor came about in the late 1970’s. Since then Zirconia has been the material of choice for its construction. The Zirconia O2 sensor produces its own voltage, which makes it a type of generator. The generated varying voltage shows up on the scope as the familiar 1 Hz sine wave, when in closed loop control. The actual voltage that is generated is the difference between the O2 content of the exhaust and that of the surrounding ambient air. The stoichiometric air-fuel ratio or the mixture of air-to-fuel equal to 14.7:1 is theoretically the best mixture ratio for gasoline engines. This is the theoretical air -to- fuel ratio at which all of the fuel will react with all of the available oxygen resulting in complete combustion. At or near this ratio, the combustion process produces the best balance between power and low emissions. At a stoichiometric air-fuel ratio (14.7:1), the generated O2 sensor voltage is about 450 mV.

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.

Reseña del editor

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The AFR sensor is an air-fuel ratio sensor that is slowly replacing the Zirconium oxygen sensor (O2 sensor) in modern motor vehicles. The early introduction of the oxygen sensor came about in the late 1970’s. Since then Zirconia has been the material of choice for its construction. The Zirconia O2 sensor produces its own voltage, which makes it a type of generator. The generated varying voltage shows up on the scope as the familiar 1 Hz sine wave, when in closed loop control. The actual voltage that is generated is the difference between the O2 content of the exhaust and that of the surrounding ambient air. The stoichiometric air-fuel ratio or the mixture of air-to-fuel equal to 14.7:1 is theoretically the best mixture ratio for gasoline engines. This is the theoretical air -to- fuel ratio at which all of the fuel will react with all of the available oxygen resulting in complete combustion. At or near this ratio, the combustion process produces the best balance between power and low emissions. At a stoichiometric air-fuel ratio (14.7:1), the generated O2 sensor voltage is about 450 mV.

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Verlag
OmniScriptum
Erscheinungsdatum
2010
Sprache
Englisch
ISBN 10 
6131775605
ISBN 13 
9786131775604
Einband
Tapa blanda
Anzahl der Seiten
92
Herausgeber
Miller Frederic P., Vandome Agnes F., McBrewster John
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
Nicht verfügbar