by SAE International in United States
The horizontal water cooled diesel engine has a structure including all component parts such as a fuel tank that are necessary to drive engine, and is often a single cylinder engine. It is mounted on many applications such as power tiller and water pump because of high general versatility of installing owing to belt drive. It has a simple structure because of single cylinder, and is active mainly in Southeast Asia. At the same time, the market requires this type of engine higher power while a compact structure is also required from the viewpoint of easy to supply and use. In other words, “High power density” that is improving the output per body size has been required. We have responded to the demand of “High power density” by increasing output without changing the engine size. In order to keep the engine size, we have been enlarging displacement by using our peculiar stroke-up expertise and original bore-up contrivance. In addition to those techniques, we introduced analytic technology for early approach to optimal solution. While we had…
Suzuki Motor Co., Ltd. Japan-Hisao Okamoto, Ryujiro Nozawa
by Society of Automotive Engineers of China in China
Various loads given to engine's cylinder-head gaskets increase with generating high performance. To maintain enough gasket-sealing pressure against those loads, the FEM is useful for the design of the cylinder-head and block. The analysis is executed for the loads to the gaskets resulting from cylinder-head bolts tightening, gas pressure, and temperature distribution.Compression characteristic of the gasket shows remarkable non-linearity. We simulate the non-linear characteristic with two linear analyses combined.Reasonable sealing pressure distribution under the bolts tightening force in the, analysis are obtained. The contact pressure distribution and the-deformation of cylinder-head and block under various load can be observed. This method permits us to develop cylinder-head and block which give the optimum seal performance to the gasket.
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