Tao Qiu

TL;DR: In this article, the authors investigated the impacts of the injection back pressure on the nozzle inner cavitation developing, especially the flow characteristic during choking process, based on the theoretical analysis, a three-dimensional numerical model is developed to investigate the details of the inner nozzle cavitation flow.

TL;DR: In this paper, an optical nozzle is designed based on the similarity principle of amplification in an equal proportion, and both the structure and the cavitation number are similar to the baseline nozzle.

TL;DR: In this paper, a method for estimating the exhaust gas temperature downstream of the V2O5 catalyst was proposed to investigate the reasons why the SCR temperature downstream is not always equal to that upstream with a commercial V 2O5 catalytic reduction (SCR) applied in a heavy-duty diesel engine.

TL;DR: In this paper, a simulation of the dynamic characteristics of a high-speed solenoid valve (HSV) was performed using the finite element method (FEM), and the interrelation between power losses and the dynamic response of the HSV was investigated based on the FEM simulation model.

TL;DR: In this paper, the authors present both experimental and numerical investigations into the flow characteristics within the control valve of a diesel unit pump fuel system (UPS) and show that during the valve opening period cavitation occurs, directly affecting the fuel-offloading process of the high-pressure fuel line and delaying the time for injector needle seating to cut off fuel injection.