Special ignition systems for alternative fuel engines

Growing environmental awareness in the major cities of the world means vehicles used in collective traffic are more often using alternative fuel engines. As a result, one of SEM’s fastest growing product areas is ignition systems for engines run on biogas and natural gas. We provide customised solutions for heavy vehicles and stationary applications.

Environmental issues have high priority around the world. Technical solutions to minimise environmental harm are making steady progress in most fields. SEM has for many years delivered ignition systems for natural gas vehicles in the US where authorities were early in setting tough demands for emission levels.

We also deliver ignition systems for stationary engines that run on fuels such as natural gas and biogas. The engines are used in applications such as electricity production – a fast growing market.

The products are often used in applications where a high level of uptime is expected.

Proprietary technology for monitoring and diagnostics enables SEM to meet tough application requirements. With the use of ion current sensing, using only the spark plug as a sensor, we can provide a number of diagnostic tools. This offers a low cost and robust solution because no separate sensors have to be introduced. Examples of functionality can be: Misfire detection, Pre-ignition and Knock detection, Peak pressure position and also Spark voltage measuring.

"One of SEM’s fastest
growing product areas is
ignition systems for engines that
run on biogas and natural gas."