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    • 96. 发明专利
    • Method of operating binary fuel engine
    • 二手燃油发动机的运行方法
    • JPS59160051A
    • 1984-09-10
    • JP3623783
    • 1983-03-03
    • Kubota Ltd
    • OKITA KIMITOSHIYAMAGUCHI HISAONAKAI SHINJI
    • F02B37/00F02B43/00F02D19/10
    • F02D19/10F02D19/0678Y02T10/36
    • PURPOSE:To keep the differential pressure of gas and air supplied to a mixer within a proper range and to protect a diaphragm from damage due to deformation of the same by enabling to push the diaphragm not only toward the pressure increasing side but also toward the pressure decreasing side by use of the air pressure supplied from a supercharger. CONSTITUTION:A gas passage (GR) for supplying mixture gas of a gas fuel and air and an oil passage (OR) for supplying an oil fuel such as light oil are connected to each cylinder of an engine 1. At one end of the gas passage GR, there is provided a mixer 4 which varies the supply rate of mixture gas in association with a throttle valve 3 serving as a gas-flow control valve. Further, a gas- fuel supply passage r2 and an air supply passage r1 having a supercharger 5 are connected to the mixer 4 so that the gas fuel is introduced via an electromagnetic fluid-passage opening and closing valve 6 and a pressure control valve 7. Here, the pressure control valve 7 is operated by a lever 17 and a diaphragm 16 that is biased toward the pressure increasing side by the pressure of air in the air supply passage r1 introduced via a fluid passage r4.
    • 目的:为了将供应到混合器的气体和空气的压差保持在适当的范围内,并且通过使隔膜不仅能够朝向增压侧而且也朝向压力来保护隔膜免受其变形的损害 通过使用从增压器供应的空气压力减小侧。 构成:用于供给气体燃料和空气的混合气体的气体通道(GR)和用于供应诸如轻油的油燃料的油路(OR)连接到发动机1的每个气缸。在气体的一端 通道GR,设置有混合器4,其与作为气体流量控制阀的节流阀3相关联地改变混合气体的供给速率。 此外,具有增压器5的气体燃料供给通道r2和空气供给通道r1连接到混合器4,使得气体燃料经由电磁流体通道开闭阀6和压力控制阀7引入。 这里,压力控制阀7由通过经由流体通道r4引入的供气通道r1中的空气压力朝向增压侧偏压的杆17和隔膜16操作。