Selecting a material for an aircraft diesel engine block

Ksenia Siadkowska,Zbigniew Czyż

doi:10.19206/ce-2019-301

Abstract

Selecting appropriate materials is presently a complex task as material databases cover tens of thousands of different types of mate-rials. Product designing proceeds in numerous stages and in most of them there are open questions with not only one correct solution but better and worse ones. This paper overviews the Diesel engine body construction materials mentioned in the literature and discusses a certain practical method to select materials for a cylinder head and a Diesel engine block as a prototype. The engine body, depending on its purpose, is most frequently iron or aluminum. If it is important to optimize parts to achieve low weight, aluminum alloys are usual-ly applied, especially in the automotive and aviation industries. In the latter case, weight is even more important so new types of magne-sium alloys which are even lighter than aluminum ones are developed and used. However, magnesium alloys are, for example, more flammable and not enough strong so, for safety reasons, this type of material is not used solely in engine bodies.

Highlights

The choice of a material for the combustion engine block discussed in this paper is directly related to the designing research on a new type of combustion engine structure done in cooperation with the Construction Office of WSK PZL-KALISZ S.A
The engine will be equipped with a direct diesel injection system
Overview of research carried out with the application of selected aluminum alloys This review has focused on the aluminum alloys that are used for CI engine blocks and on the materials considered for such applications

Summary

Introduction

The choice of a material for the combustion engine block discussed in this paper is directly related to the designing research on a new type of combustion engine structure done in cooperation with the Construction Office of WSK PZL-KALISZ S.A. As indicated in [17], selecting materials is an optimization process, so it is necessary to formulate constraints and functions defining material requirements, which means finding the so-called functionality indicator dependent on properties of a material and whose maximization determines an optimal material for a given purpose This approach is accurate mainly if simple, original products are designed as it enables us to extend an application of new materials. Additional aspects to consider are, availability, price or knowledge and a possibility of an economically justified processing of a given material This solution should be avoided while designing [1], especially the original product as it hampers development in the field of applied materials. The authors included availability and data obtained from the material database

Application of aluminum alloys in the production of diesel engine blocks

Findings

Conclusions