Dynamic Performance of Natural Gas Injection Valve for Heavy-Duty Power Generation Engine - Part I

발전용 대형엔진용 천연가스 분사밸브 동특성 연구 (I)

Choi, Young;Kim, Yong-Rae;Lee, Seok-Whan;Kim, Chang-Gi

  • Received : 2015.11.16
  • Accepted : 2015.12.24
  • Published : 2015.12.31


Natural gas fuel has known to be very promising in terms of abundancy and economic value. Therefore it is widely treated as research topics in a variety field of production, storage and utilization. Natural gas has become one of the major sources for the power generation by using internal combustion engines(ICE). Development of natural gas fuel injection device should be preceded to realize a reliable natural gas fuel supply system for a MW class power generation reciprocating ICE. In this research, an injection valve which consists of solenoid and body part with a moving plate was designed and its dynamic performance was experimented in the engine-like environment. As a result of the experiments, linearity of flow rate was obtained and overall around 2ms of response time was observed at the pressure difference of 1bar. In addition, more than 100Liter/min(@2Hz) of gas flow rate was witnessed, which is expected to be adequate for the fuel supply system of a MW class natural gas engine.


injection valve;solenoid core;armature;pressure difference;stroke;response time;flow rate


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Supported by : 산업통상자원부, 한국기계연구원