When we mention power generation and locomotion, it is observed that the application of internal combustion engines is essential. In view of the large scale of application of these engines, in particular the compression-ignition engines, known as Diesel cycle engines, various problems inherent to the operation and maintenance of them are presented. One of the critical problems of the Diesel engine is a defect known as engine runaway. This problem occurs for several factors, but the lack of proper maintenance is the main reason. When the defect occurs there is no safe method of shutting down the diesel engine, generating loss of the motor and risk the human integrity is imminent. In this way, this article proposes a system of protection against engine firing using a system of locking valves. This system cuts the airflow at admission, causing the failure of the air to not allow combustion. The project was entirely developed in AutoCAD and presented only for theoretical reference requiring the implementation in the laboratory for conducting controlled trials.
With the increase of the fleet of heavy vehicles and the knowledge that tires are one of the components that suffer most from natural wear, inherent to the use of the work routine, the maintenance or replacement of parts and components of the region allocated to the tyre occurs with Often and requires great physical effort. This article focuses on demonstrating the application of the mechanical design of a device that assists in the removal of the wheels of vehicles in this category, as well as to present the equation of the various efforts to which they are submitted, Using specific software such as AutoCAD, Inventor HSM and others. The project elaborated through these projection software in 3D, facilitates the construction and discrimination of the material necessary for the elaboration of the prototype, grounded in the calculations of determination of the static force and application of the safety coefficient, determination of reactions in the support, moment and maximum cutting forces, determination of yield strength in the tube, bearing type determination by the applied effort.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.