Oxigénszenzorok

Oxigénszenzorok, often referred to as oxygen sensors or lambda sensors, are crucial components in modern internal combustion engines, primarily in automotive applications. Their main function is to measure the amount of unburned oxygen present in the exhaust gases. This measurement is vital for the engine control unit (ECU) to precisely regulate the air-fuel mixture.

By analyzing the oxygen levels, the ECU can determine whether the mixture is too rich (too much fuel, not enough air) or too lean (too little fuel, too much air). This precise control allows the engine to operate at its most efficient point, which minimizes fuel consumption and reduces harmful emissions. The optimal air-fuel ratio, known as stoichiometric, is approximately 14.7 parts air to 1 part fuel for gasoline engines.

There are several types of oxygen sensors, with the most common being the zirconia sensor and the titania sensor. Zirconia sensors are more prevalent and operate by generating a voltage that varies with the oxygen concentration. Titania sensors, while less common, also serve the same purpose of detecting oxygen levels.

A malfunctioning oxygen sensor can lead to a range of problems, including decreased fuel economy, increased emissions, rough idling, and potential damage to the catalytic converter. Regular diagnostic checks can help identify sensor issues, and replacement is typically a straightforward repair. The presence and proper functioning of oxygen sensors are essential for meeting stringent environmental regulations governing vehicle emissions.