Repotenciación del banco de pruebas para los inyectores del motor PT6 A-68C del avión a-29B super tucano perteneciente al grupo logístico No. 232 de la Fuerza Aérea Ecuatoriana.

Abstract

The present investigation aims to upgrade a test bench for injectors of motor PT6 A-68C of airplane A-29B belonging to Logistics Group N" 232 of Ecuadorian Air Force, so that the maintenance of injectors can be practical and versatile. We evaluated the current equipment before upgrading the original design of the bench. Information about Motor PT6, its operation, procedure of inspection in acrospace and anificial vision was also collected. We selected equipment and tools according to parameters and characteristics adjusting to the new hydro pneumatic system, card DAQ USB NI 6218 was used for the acquisition and automation of the process because of easy communication and connection. It also has input and output ports for digital signals which are necessary to execute the project. These connections are made of nipples of stainless steel and nitrile hoses which are compatible with the working fluid. Software LabVIEW with corporative license of Mechanical Engineering Faculty and Centre of Investigation and Development of Ecuadorian Air Force was used for the programming. An interface was developed to make easy the control of the system and increase the effectiveness in the inspection of the injectors with a width visualiration of cone spray. Two manuals were made. The first one is about operation and the second one is about maintenance for the new bench. The former is to know the steps to be followed before, during and after of the tests, and the latter is to guarantee the good operation and durability of the equipment.