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A Loss Analysis Design Approach to Improving Torque Converter Performance
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English
Abstract
This paper describes the relationship between the design parameters used to define the geometry of an automotive torque converter and the resultant efficiency in relation to the internal flow characteristics. Taking the turbine bias angle and the contraction ratio of the pump flow passage as specific examples, the effects of each design parameter on the internal flow characteristics and the occurrence of loss were analyzed. A three-dimensional viscous flow analysis code was used in the numerical computation procedure and a method developed independently by the authors was used in the loss analysis. The flow near the wall was visualized experimentally using a technique resembling the so-called oil film method. The visualized results showed good qualitative agreement with the numerical analysis results.
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Citation
Kubo, M. and Ejiri, E., "A Loss Analysis Design Approach to Improving Torque Converter Performance," SAE Technical Paper 981100, 1998, https://doi.org/10.4271/981100.Also In
1998 Transmission and Driveline Systems Symposium: New Developments and Advanced Concepts in Systems and Components
Number: SP-1324; Published: 1998-02-13
Number: SP-1324; Published: 1998-02-13
References
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