Projecção de uma bancada para ensaios dinamométricos dos motores MWM da série 10 na EMTPM

Abstract

The present report aims to design a dynamometric test bench to generate the torque and power curves of an engine in order to reduce the maintenance time of the MWM 10 series engines, ensuring the quality of the work carried out at Empresa Municipal dos Transportes Públicos de Maputo. (EMTPM). The dynamometer in its most general meaning is an instrument used to measure forces, based on the elastic deformation of a calibrated spring, however, they are also known as dynamometer or dynamometer bench. As are also devices used to absorb or dissipate energy, generated by a machine and based on the measurement of certain parameters of the machine (such as torque and/or rotational speed, depending on the operating principle of the dynamometer) the estimated calculation of mechanical power generated by the machine under different operating conditions. There are several types of dynamometer, such as: Friction Dynamometer / Prony Brake, Eddy Current dynamometer, electric dynamometer, Ventilation dynamometer and the Hydraulic dynamometer that will be used in the following work. Time saving, quality and worker safety during maintenance of MWM Series 10 engines make the dynamometric test bench indispensable in workshops or automotive industries. Among the various activities carried out by the company, the present work will focus only on the maintenance of MWM series 10 engines. The equipment to be designed will have its application in the EMTPM Company in order to ensure quality of repair and less time of unavailability of the engines.