Abstract Cast engine components are experiencing ever tighter tolerance requirements and at the same time a more complex cast design. The geometries, some of which inaccessible, tested for quality assurance on basis relevant component characteristics, among other things. position check measures actual feature in spatial dimension. Information about alignment geometry combustion chamber cannot b...

In this work, two known probability distributions based on the replacement model, namely, the Maxwell-Boltzmann and Bose-Einstein ones, are examined. Each of these distributions is assigned to a specific case of query processing, which is known in the literature as batching on primary key values or secondary key retrieval, respectively. These distributions are applied in evaluating the expected...

The project RoboMAP is a cooperation of different partners from science and industry, including our institute. It aims at the development of an inspection system for quality assurance in the automotive industry. The objects to inspect are cylinder heads. In particular the valve seats and the valve stem guides are of special interest. The latter lie in the inner part of the cylinder head and are...

The goal of the present work is to study theoretically the structure of water inside the water cylinder of the inverse hexagonal mesophase (H(II)) of glyceryl monooleate (monoolein, GMO), using the method of molecular dynamics. To simplify the computational model, a fixed structure of the GMO tube is maintained. The non-standard cylindrical geometry of the system required the development and ap...

CFD Aided Development of a SI-DI Engine — Gasoline Direct Injection (GDI) appears to be the most relevant way to improve fuel efficiency of SI engines. But today, GDI is essentially regarded as a suitable technology for relatively high displacement engines, and the literature shows that the R&D effort on GDI engines is generally made for bores larger than 80 mm. For small bore engines (bore bel...