Patent ID: 9128006
Filing Date: 2015-09-08
Classification: G01M

Abstract:
1. A method for measuring particulate emissions of aircraft engines on test benches, wherein an inlet of a first flow splitter is connected to a probe for withdrawing exhaust gas from the aircraft engine, the exhaust gas flow is split by way of the first flow splitter into a particle line and a line connected to a blow-off valve, and a pressure sensor is used to set a predefined overpressure upstream of the first flow splitter, and the particulate line is connected to the inlet of a first dilution stage in which the exhaust gas is diluted at a certain ratio, and excess volume escapes via an exhaust having a valve on the first dilution stage, furthermore the outlet of the first dilution stage is connected to the inlet of a second flow splitter, and an outlet of the second flow splitter is connected to an instrument for particulate measurement, and another outlet of the second flow splitter is connected to a pump for setting a predefined flow through the particulate line.