Research on the soft start-up performance of hydro-viscous drive

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2004,（1）
• 页码范围: 70-72
• 页数: 3页
• 语种: 英文

摘要

The principle and structure of hydro-viscous drive(HVD) set is introduced. Through theoretical analysis of the HVD set start-up steadiness, the conclusions were obtained that the non-linearity of the pressure performance curve and dynamic pressure instability of the pilot-operated electro-hydraulic pressure relief valve, which is used for the HVD speed regulating purpose and usually works within micro flow-rate and low oil pressure state, are the main causes of the poor start-up steadiness. So a special speed regulating valve for HVD set is developed, with which the start-up steadiness of HVD set is much improved.