Abstract
Keywords: Indication, exhaust, pressure, sensor, positioning
In order to analyze the processes during the gas exchange phase in the engine, knowledge of pressure states in both inlet and outlet is required. This pressure measuring is known as "low pressure indication". In the presented work, analyzing of the processes during exhaust phase has been carried out using sensitive pressure sensors and measuring devices from Kistler Instruments AG. Therefore a custom made exhaust manifold was created allowing the isolation of a cylinder to avoid the influence on gasdynamic effects from other cylinders. Pressure measurements where carried out in different planes of the exhaust pipe. Final results showed that the asymmetric course of the exhaust pulse could clearly be verified, especially in the plane after the crook of the exhaust pipe.