Abstract

A method has been created to optimize design parameters using three-dimensional CFD to analyze the internal flow condition of a flat torque converter, and one-dimensional angular momentum theory. This method has been used to design a torus and blade configuration which reduces flow loss, and to optimize the specifications of the stator, which has a great affect on torque capacity characteristics. This has allowed the development of the thinnest ultra flat mass production torque converter in the world without sacrificing torque converter performance.

References

1. (1) Klaus, B., Ronald, D. F., et al.: The Flow Field Inside an Automotive Torque Converter: Laser Velocimeter Measurements, SAE Paper 960721
2. (2) Watanabe, H., Kurahashi, T.: Flow Visualization and Measurement of Torque Converter Stator Blades Using a Laser Sheet Lighting Method and a Laser Doppler Velocimeter, SAE Paper 970680
3. (3) Marco, C., Sreenadh, J.: Fluid Flow in an Automotive Torque Converter: Comparison of Numerical Results with Measurements, SAE Paper 950673
4. (4) Ishihara, M., et al.: Design Process for Fluid Transmission Devices, Tokyo, Ohmsha, p.29-37 (1967)
5. (5) Abe, H., Miyoi, N., et al.: Practical Simulation Method by Compensating the Outlet Flow Angle of a Stator, FISITA, p.16 (1996)
6. (6) Abe, H., et al.: Practical Simulation Method by Compensating the Outlet Flow Angle of a Stator, JSAE Review, No. 951, p.121-124 (1995)

Author (organization or company)

• Hiroya ABE（Tochigi R&D Center）
• Tetsuro MARUYAMA（Tochigi R&D Center）
• Masatoshi SAKATOU（Tochigi R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.13 No.1 (75 - 80)

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Citation Information