In-Cylinder Pressure Sensor

Posted on September 12, 2008

Kavlico, Moorpark, Calif. , a global business unit of Custom Sensors & Technologies (CST) and has developed an in-cylinder pressure sensor for optimizing engine combustion, increasing fuel efficiency while reducing emissions. Kavlico said the sensor assists with the timing and delivery of the fuel by providing accurate pressure information to the engine control unit to control fuel injection pulses, enhancing combustion, control, and cylinder pressure management while reducing gaseous and particulate emissions all the while improving fuel consumption.

The sensor utilizes a thin film titanium oxynitride sense element in an all-welded, hermetically sealed, stainless steel housing. Kavlico said the package design is suited for hostile environments. Pressure ranges are available from 0 to 200 through 0 to 300 bar.

The sensor operates on 5 Vdc and provides a linear amplified analog output of 0.5 to 4.5 Vdc proportional to pressure as standard with other custom output options. The sensor is impervious to electromagnetic interference (EMI), Kavlico said.

The sensor also has a small probe OD of 8mm and the probe can be specified up to 100mm in length. The sense element is located at the tip of the sensor, for a highly accurate and fast output response time, the company said.