摘要 |
<p>Process for determining the effect of lubricants and the relative components on exhaust emissions, specifically on the particulate, of an internal combustion engine which comprises: (a) feeding, under almost constant flow rate conditions, the lubricant, or its components, to a single-orifice injector, through which the lubricant is sprayed into the intake air manifold of an engine; the flow rate of the lubricant is regulated to be from 2 to 8% of the flow rate of the fuel; the viscosity of the lubricant near the single-orifice injector being from 30 to 50 cSt; (b) combustion of the lubricant and fuel with the consequent formation of exhaust gases; (c) evaluation of the gases and of the particulate contained in the exhaust gases formed in step (b) <IMAGE></p> |