Patent ID: 7827965
Filing Date: 2010-11-09
Classification: F02D,G01F

Abstract:
1. A piston aircraft engine assembly, comprising: a piston aircraft engine; a fuel source; and a control system adapted to deliver fuel from the fuel source to the piston aircraft engine, the control system including: wherein the mass airflow sensing apparatus of the control system includes a Venturi meter device having an inlet portion adapted to receive air from an air source, and an outlet portion adapted to output the air to a manifold of the piston aircraft engine; wherein the Venturi meter device further includes a constricted portion disposed between the inlet portion and the outlet portion, the constricted portion being adapted to cause a change in pressure as the air passes from the inlet portion to the outlet portion through the constricted portion; wherein the mass airflow sensing apparatus of the control system further includes a differential pressure sensor adapted to (i) measure a pressure difference between the inlet portion of the Venturi meter device and the constricted portion of the Venturi meter device, and (ii) output, as the pressure signal, an electronic signal to the electronic engine controller, the electronic signal representing the pressure difference; wherein the electronic engine controller, when generating the set of fuel injector signals based on the pressure signal received from the mass airflow sensing apparatus, is adapted to: