By Hermann Hiereth

This publication covers all points of supercharging inner combustion engines. It info charging structures and elements, the theoretical simple family among engines and charging platforms, in addition to format and review standards for top interplay. assurance additionally describes fresh reviews in layout and improvement of supercharging platforms, superior graphical displays, and such a lot complicated calculation and simulation instruments.

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Extra resources for Charging the Internal Combustion Engine (Powertrain) (Powertrain)

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Calculation of engine mass flows with accuracy within 1–2% of the actual values) and, on the other hand, acceptable computing times (within minutes) can be achieved. , the flow optimization of the inlet flow to a catalyst located a short distance downstream of the turbine outlet. , the 3-D flow simulation – must be used. But let us concentrate in this section on the engine process simulation. The individual parts of the supercharged engine can be categorized into modules. The physical processes in the various modules are then mapped via mathematical models.

The 3-D flow simulation – must be used. But let us concentrate in this section on the engine process simulation. The individual parts of the supercharged engine can be categorized into modules. The physical processes in the various modules are then mapped via mathematical models. With the use of master control programs, the individual modules can be finally interconnected. From the previous sections it is obvious that the following components are especially relevant for supercharged engines: – cylinder for the description of the gas exchange and the high-pressure cycle – pipe elements – plenum elements – turbocharger, consisting of flow compressor and turbine – displacement compressor – charge air cooler Cylinder For the mathematical description of the physical processes in the cylinder we can distinguish between the gas exchange and the high-pressure phase.

The aim is the optimum layout of the valve arrangement in combination with an exhaust manifold designed under gasdynamic aspects, so that maximum pressure recovery can be obtained, while at the same time the pressure gradient upstream of the turbine is minimized. The complex issue of exhaust gas energy utilization via exhaust gas turbocharging is a very central and substantial item in the field of supercharging. Therefore, the simulation-related themes are covered intensively in Sect. 6, and those of the thermodynamic as well as flow design in Chap.

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