中文摘要：

从设计、流场分析和优化三个方面综述了液力变矩器国内外的研究进展和现状并对未来的发展趋势做了初步的探讨，包括扁平化设计、设计平台的开发以及流场特性细节的研究等。结合上述研究成果，指出设计、流场分析和优化之间的相互关系，重点分析了液力变矩器设计分析集成的发展新趋势，并讨论了集成系统实现的关键技术。

英文摘要：

The Chinese and foreign research on torque converter are summarized from three aspects including de- sign, analysis of flow field and optimization. The development trend in future is also investigated primarily including fiat design, design platform development and details research of flow field characteristics. Based on the current re-search achievemerlts, it is noted that design, analysis and optimization are always researched synthetically. Finally, the new development trend on the integration of the three aspects is put forward and the key technologies are dis- cussed.