AVL Blow By Meter - Consumption Measurement. DIFFERENTIAL PRESSUREFor the determination of blow- by flow the orifice measurement principle (differential pressure measurement procedure) is used. A neck (orifice) in the tube cross- section provokes a pressure drop that is measured by means of a differential pressure sensor. The shape of the orifice of the AVL Blow By Meter means that it, on the one hand, ensures the accuracy in both flow directions and, on the other, prevents condensation at the orifice that might modify the cross- section. The selected shape of the orifice allows for a broad dynamic range of 1: 5.
PRESSURE TRACES IN A DIESEL ENGINE Dr. Behnam Shahrrava Department of Electrical and Computer Engineering. Fig 4.1: [a] Kistler 6052B1 Pressure Transducer (Adapted from ); [b] AVL GU13P Pressure Transducer (Adapted from ). AVL Equipment Balancing Services Cooling Modules Dynamometer Controller New Dynamometer Controller Used Dynamometer Spares Emissions Equipment Engine Dynamometer Test Rigs MAHA Chassis Dyno / Rolling Road New Engine Dynamometers. The AVL Blow By Meter, with its extremely high measurement accuracy, has set the standard for blow-by measurement around the world. AVL BLOW BY METER measurement principle In order to determine the blow-by flow, the orifice measurement principle.
Typical diesel dynos include: 19' heavy-duty toroidal water-brake or large eddy-current absorber, S-beam electronic torque transducer, high-flow manual (or optional electronic) engine load control, DYNOmite data-acquisition computer, rigid-frame engine test stand.