• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Qiu, Tao (Qiu, Tao.) | Dai, Hefei (Dai, Hefei.) | Lei, Yan (Lei, Yan.) | Liu, Yuwei (Liu, Yuwei.)

收录:

Scopus SCIE

摘要:

The control valve of a diesel unit pump fuel system adjusts the pressure of the high-pressure fuel line through rapid opening to achieve fuel cut-off control. Previous research shows that the inner flow of the control valve is a dynamic cavitation flow process, and both the inlet/outlet pressures and valve lift have great influence on this process. However, the effect of the valve needle speed on the flow characteristics is not clear. This study presents an investigation of the effect of the valve needle speed on the flow characteristics within the control valve region during the fuel offloading process of a diesel unit pump fuel system based on a homogenous two-phase unsteady flow numerical model. The results show that under the condition of same inlet/outlet pressures, as the valve needle speed increases, the cavitation intensities of both the conical region and the conical downstream region are weakened. The effects of the valve needle speed on the mass flow rate under the condition of small valve needle opening can be ignored; under the condition of large valve needle opening, the higher the valve needle speed is, the greater the mass flow rate is.

关键词:

cavitation control valve Diesel engine unsteady flow valve needle speed

作者机构:

  • [ 1 ] [Qiu, Tao]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing, Peoples R China
  • [ 2 ] [Dai, Hefei]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing, Peoples R China
  • [ 3 ] [Lei, Yan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing, Peoples R China
  • [ 4 ] [Qiu, Tao]Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China
  • [ 5 ] [Qiu, Tao]Beijing Univ Technol, Beijing 100081, Peoples R China
  • [ 6 ] [Liu, Yuwei]China Univ Min & Technol, Sch Mech Elect & Informat Engn, Beijing, Peoples R China

通讯作者信息:

  • [Qiu, Tao]Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China;;[Qiu, Tao]Beijing Univ Technol, Beijing 100081, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

相关文章:

来源 :

ADVANCES IN MECHANICAL ENGINEERING

ISSN: 1687-8140

年份: 2018

期: 4

卷: 10

2 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:76

JCR分区:4

被引次数:

WoS核心集被引频次: 5

SCOPUS被引频次: 6

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

在线人数/总访问数:700/3615920
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司