Search Results

Development process of a set of duct fans for an automotive alternator is described. By computer modeling, one can estimate the airflow characteristics of a given fan for providing increased cooling performance and lower noise. The process includes identification of several fan geometries and definition of an optimum configuration. Test results are provided for the final design.

The development process of a water pump impeller used on a sport utility vehicle engine is described. A review of the design process is presented in this paper including the computer-aided flow analysis together with testing procedures. By computer modeling, one can estimate the coolant flow characteristics of a given impeller blade shape for providing increased cooling performance and improved efficiency on the engine. It also provides directions for the improved design. The test data are used specifically to confirm the analysis results.

In this paper, design of a generator is summarized which starts with the analysis of an existing generator, for which experimental measurements existed. First a system model of this existing design is analyzed and analysis results are validated by using these measurements. Then a sensitivity analysis is performed to study the critical features of the existing design. Based on the sensitivity analysis, areas for improvement are identified and modifications are suggested for these areas. One of the suggested modifications is the design of a new fan. For this purpose, a three-dimensional analysis is conducted. Again, starting with the original design of the fan, an optimized design is obtained after several iterations. The end product of the described design procedure is built and tested. Comparison of test results with the original design shows significant improvement in terms of performance and efficiency.