利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

145 条记录 (耗时 0.025 秒)

    Fuel gas injection valve
    5.
    发明专利
    Fuel gas injection valve 有权
    燃油喷射阀

    公开(公告)号：JP2014084729A

    公开(公告)日：2014-05-12

    申请号：JP2012232065

    申请日：2012-10-19

    申请人： Mitsubishi Heavy Ind Ltd ,  三菱重工業株式会社

    发明人： ISHIDA HIROYUKI ,  MITSUYANAGI AKIHIRO ,  HIRAOKA NAOHIRO ,  TANAKA SHIGEKI ,  WATANABE SOTA ,  KOMADA KOYUKI

    IPC分类号： F02M21/02 ,  F02M61/18

    CPC分类号： F02M67/14 ,  F02D19/024 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0692 ,  F02D41/0025 ,  F02D41/3047 ,  F02M21/0263 ,  F02M43/04 ,  F02M47/04 ,  F02M61/04 ,  F02M61/042 ,  F02M61/12 ,  F02M61/1813 ,  F02M61/182 ,  F02M61/1893 ,  F02M63/0028 ,  F02M2200/44 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36

    摘要： PROBLEM TO BE SOLVED: To restrain generation of NOx (nitrogen oxide) by promoting pre-mixture of fuel gas and air.SOLUTION: The fuel gas injection valve comprises: a holder 22 having a first injection hole 61 for injecting fuel gas that is premixed fuel, and a second injection hole 62 for injecting fuel gas that is diffusion fuel; a first needle valve 23 that slidably moves reciprocatively in an axial direction in the holder 22 and opens/closes the first injection hole 61 and the second injection hole 62; and a second needle valve 25 that is provided with a seal face 94 contacting a needle valve seat 93 provided on the holder 22 at its tip, that is provided with a through hole 91 in which the first needle valve 23 is slidably inserted at a radial center part in an axial direction, that reciprocates in the holder 22 in the axial direction and blocks circulation of the fuel gas to the first injection hole 61 and the second injection hole 62 when the seal face 94 contacts the needle valve seat 93, and that allows circulation of the fuel gas to the first injection hole 61 or the second injection hole 62 when the seal face 94 is away from the needle valve seat 93.

    摘要翻译： 要解决的问题：通过促进燃料气体和空气的预混合来抑制NOx（氮氧化物）的产生。解决方案：燃料气体注入阀包括：具有用于喷射预混合燃料气体的第一注入孔61的保持器22 燃料和用于喷射作为扩散燃料的燃料气体的第二喷射孔62; 第一针阀23，其在保持器22中沿轴向可滑动地移动并打开/关闭第一喷射孔61和第二喷射孔62; 以及第二针阀25，该第二针阀25设置有与其设置在保持器22的尖端处的针阀座93接触的密封面94，其设有通孔91，第一针阀23以径向 中心部分在轴向方向上在保持器22中沿轴向往复运动，并且当密封面94接触针阀座93时阻止燃料气体向第一喷射孔61和第二喷射孔62的循环，并且 当密封面94远离针阀座93时，允许燃料气体循环到第一喷射孔61或第二喷射孔62。

    Method of controlling the sub-chamber type gas engine
    8.
    发明专利
    Method of controlling the sub-chamber type gas engine 有权

    公开(公告)号：JP5357957B2

    公开(公告)日：2013-12-04

    申请号：JP2011501630

    申请日：2010-02-25

    申请人： 三菱重工業株式会社

    发明人： 雄太 古川

    IPC分类号： F02D19/02

    CPC分类号： F02D41/0025 ,  F02B19/108 ,  F02B19/12 ,  F02D19/024 ,  F02D41/0027 ,  F02D41/1458 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02M21/0236 ,  F02M21/0275 ,  F02M21/0284 ,  Y02T10/125 ,  Y02T10/32

    摘要： Providing a control method for controlling an engine of a precombustion chamber type, whereby the misfiring in the precombustion chamber is surely prevented. In the control method for controlling an engine of a premix combustion type, the method including, but not limited to the processes of: a first step where the charging air pressure, the charging air temperature and the engine speed are detected; a second step where the air excess ratio of the air fuel mixture supplied to the main combustion chamber is computed as per predetermined relational expressions; a third step where the amount of the fuel to be supplied to the precombustion chamber is duly computed as per the relational expression between the air excess ratio of the air fuel mixture in the main combustion chamber and the fuel amount of the air fuel mixture in the precombustion chamber; a fourth step where the valve opening duration regarding a precombustion chamber fuel supply valve for controlling the amount of the fuel to be supplied to the precombustion chamber is computed as per a relational expression between the valve opening duration and the computed fuel amount of the air fuel mixture in the precombustion chamber.