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Fluid Composition Affects Leakage from Automatic Transmissions
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
Tests were conducted using older model cars with automatic transmissions to determine the effect of fluid composition on leakage past the rotating shaft seals. It was found that seal leakage was reduced or stopped by changing to seal-swelling fluids, and increased with seal-shrinking fluids. Leakage was also reduced by adding aromatic additives to existing fluids in the transmissions. Seal volume and hardness change results from bench tests support the car data.
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Authors
Citation
Goodwin, M., Rodgers, J., and Peters, G., "Fluid Composition Affects Leakage from Automatic Transmissions," SAE Technical Paper 660397, 1966, https://doi.org/10.4271/660397.Also In
References
- Borden, D. Roux, N. R. Stendahl, C. M. “Technical Considerations of Automatic Transmission Fluid Formulation.” Paper presented at SAE Meeting Milwaukee, Wis. Sept. 10–13 1962
- Bozzelli, A. J. “Designing an Automatic Transmission Fluid.” Paper presented at SAE Meeting Detroit Jan. 12–16 1959
- Van Nes, K. “Aspects of the Constitution of Mineral Oils.” Amsterdam Elsevier Publishing Co., Inc. 1951 318 349
- Peters G. A. Rodgers, J. J. “Evaluating the Effect of Fluids on Automatic Transmission Rotating Shaft Seal Elastomers.” Paper presented at SAE Meeting Detroit June 10– 16 1966