Denso improves accuracy of temperature sensor

Japan-based Denso Corp. said it has improved the temperature detection accuracy of its newly developed diesel exhaust temperature sensor which is located in front of the diesel particulate filter (DPF). The sensor is used to control the temperature for DPF regeneration. The company said it has developed a vibration-resistant structure with an anti-resonance pipe to support the probe, or sheath pin, at its optimal position which allows the sensor to regenerate DPFs more efficiently, resulting in cleaner emissions, as well as increased fuel efficiency because less fuel is required in the DPF regeneration process. In addition, because less fuel is needed for DPF regeneration, less fuel is mixed in the engine oil, which helps prevent the engine oil from deteriorating. (April 20, 2009)