Variable-capacity matching of continuously variable-capacity double-impeller torque converter applied to a loader

Wen-Xing Ma,Li-Peng You,Wen Xu,Wei Cai

doi:10.1177/1687814017690694

Wen-Xing Ma, Li-Peng You + Show 2 more

Open Access

https://doi.org/10.1177/1687814017690694

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Abstract

Variable-capacity matching of continuously variable-capacity double-impeller torque converter applied to a loader was studied in the article. Static variable-capacity matching of continuously variable-capacity double-impeller torque converter was performed under the two-impeller state and slipping state. Dynamic variable-capacity matching based on the V-shaped operating cycle was simulated in order to reflect the matching performance of the double-impeller torque converter more intuitively. The working speed of double-impeller torque converter together with engine was analyzed when the loader shoveled different materials, and the power performance and fuel economy of the whole machine were calculated. The continuously variable-capacity double-impeller torque converter applied to a loader could not only meet the requirements of matching different loader working conditions but also enhances the power performance and fuel economy of the whole machine in running condition compared with the original torque converter.

Highlights

The capacity characteristics of torque converter (TC) of loader are invariable, and the matching performance of this kind of TC cannot achieve ideal results simultaneously in running condition and shovel mucking condition.[1]
The results showed that capacity characteristics of the original TC were fixed and one matching result was obtained for a certain material
The results show that the fuel economy in running condition is improved significantly when the loader is equipped with double-impeller TC

Summary

Introduction

The capacity characteristics of torque converter (TC) of loader are invariable, and the matching performance of this kind of TC cannot achieve ideal results simultaneously in running condition and shovel mucking condition.[1]. By analyzing original characteristics of doubleimpeller TC under two-working-impeller state, singleworking-impeller state, and the slipping state, the highest efficiency and impeller torque coefficient appear in the high-speed ratio arrange under the two-workingimpeller state. The capacity characteristics of double-impeller TC under the two-working-impeller state could meet the matching requirements of a loader in running conditions.

Results

Conclusion