Operation of compact loader hydrostatic transmission on diesel engine minimum fuel combustion

The basic demand in design process of earth moving machines is in achievement of the functional requirements. The following demand is to make it safe and everlasting. The last, but not less important features are market competitiveness and environmental sustainability. The presented analysis confirms the abovementioned demands by ilu lustrating the small compact loader hydrostatic transmission. With regard to the hydrostatic transmission of loader, it has been noted that variable displacement axial piston pump whe combined with dual displacement hydro motor has greater advantages than when it is combined with fixed displacement hydro motor. Special emhasis is pu ton energy saving i.e. minimum fuel consumption of diesel engine as driver for hydrostatic pump. Such approach to design small compact loader gives a great contribution in reduction of emissions of harmful gases. That is the most important mission of any motor vehicle designer when attempting to prevent the environment pollution.