Fuel injection device
    2.
    发明公开
    Fuel injection device 有权
    Brennstoffeinspritzvorrichtung

    公开(公告)号:EP2275665A1

    公开(公告)日:2011-01-19

    申请号:EP10005693.6

    申请日:2010-06-01

    申请人: DENSO CORPORATION

    IPC分类号: F02M47/02 F02M61/16

    摘要: The invention has an object for improving response of a fuel injection device. A flow-in recessed portion (72a) and a flow-out recessed portion (74a) are formed at a press-contacting surface of a floating plate (70), which is movably accommodated in a pressure control chamber (53). A flow-in port (52b) and a flow-out port (54b) are formed at a pressure control surface (53b) of a valve body (46). The flow-in port (52b) is opened to the flow-in recessed portion (72a), while the flow-out port (54b) is opened to the flow-out recessed portion (74a). When the floating plate (70) is moved upwardly and the press-contacting surface is brought into contact with the pressure control surface (53b), the flow-in port (52b) is surely closed.

    摘要翻译: 本发明的目的是改善燃料喷射装置的响应。 在可移动地容纳在压力控制室(53)中的浮板(70)的压力接触表面处形成有流入凹部(72a)和流出凹部(74a)。 在阀体(46)的压力控制面(53b)形成有流入口(52b)和流出口(54b)。 流入口(52b)向流入凹部(72a)开口,而流出口(54b)向流出凹部(74a)开口。 当浮板(70)向上移动并使压接面与压力控制面(53b)接触时,流入口52b被可靠地封闭。

    Fuel injection device
    5.
    发明公开
    Fuel injection device 有权
    Brennstoffeinspritzvorrichtung

    公开(公告)号:EP2476892A1

    公开(公告)日:2012-07-18

    申请号:EP12163979.3

    申请日:2010-06-01

    申请人: DENSO CORPORATION

    IPC分类号: F02M47/02 F02M61/16

    摘要: The invention has an object for improving response of a fuel injection device . A flow-in recessed portion (72a) and a flow-out recessed portion (74a) are formed at a press-contacting surface of a floating plate (70), which is movably accommodated in a pressure control chamber (53). A flow-in port (52b) and a flow-out port (54b) are formed at a pressure control surface (53b) of a valve body (46). The flow-in port (52b) is opened to the flow-in recessed portion (72a), while the flow-out port (54b) is opened to the flow-out recessed portion (74a). When the floating plate (70) is moved upwardly and the press-contacting surface is brought into contact with the pressure control surface (53b), the flow-in port (52b) is surely closed.

    摘要翻译: 本发明的目的是改善燃料喷射装置的响应。 在可移动地容纳在压力控制室(53)中的浮板(70)的压力接触表面处形成有流入凹部(72a)和流出凹部(74a)。 在阀体(46)的压力控制面(53b)形成有流入口(52b)和流出口(54b)。 流入口(52b)向流入凹部(72a)开口,而流出口(54b)向流出凹部(74a)开口。 当浮板(70)向上移动并使压接面与压力控制面(53b)接触时,流入口52b被可靠地封闭。

    Fuel injection valve
    6.
    发明公开
    Fuel injection valve 审中-公开
    燃油喷射阀

    公开(公告)号:EP1870594A1

    公开(公告)日:2007-12-26

    申请号:EP07110200.8

    申请日:2007-06-13

    申请人: Denso Corporation

    IPC分类号: F02M47/02 F02M63/00

    摘要: A fuel injection valve includes a valve element (31), an actuator (4), a control chamber (26), and a nozzle (2). The valve element (31) is provided in a valve chamber (14). The control chamber (26) is always communicated with the valve chamber (14). S3 > S1 > S2 is satisfied in a condition, where the followings are satisfied. S1 is a passage area of a high-pressure seat portion (34) of the valve chamber, which area is a product of a peripheral length of the high-pressure seat portion (34) multiplied by a lift amount of the valve element (31) in a state, where the valve element (31) is disengaged from the high-pressure seat portion (34). S2 is a passage area of the high-pressure restrictor (50). S3 is a passage area of the high-pressure fuel passage (13).

    摘要翻译: 燃料喷射阀包括阀元件(31),致动器(4),控制室(26)和喷嘴(2)。 阀元件(31)设置在阀室(14)中。 控制室(26)始终与阀室(14)连通。 在满足以下条件的情况下满足S3> S1> S2。 S1是阀室的高压座部(34)的通道面积,该面积是高压座部(34)的周长乘以阀元件(31)的升程量的乘积 )在阀元件(31)从高压座部分(34)脱离的状态下移动。 S2是高压限流器(50)的通路面积。 S3是高压燃料通道(13)的通道区域。

    Fuel injection device
    7.
    发明公开
    Fuel injection device 有权
    燃油喷射装置

    公开(公告)号:EP2476893A1

    公开(公告)日:2012-07-18

    申请号:EP12163982.7

    申请日:2010-06-01

    申请人: DENSO CORPORATION

    IPC分类号: F02M47/02 F02M61/16

    摘要: The invention has an object for improving response of a fuel injection device . A flow-in recessed portion (72a) and a flow-out recessed portion (74a) are formed at a press-contacting surface of a floating plate (70), which is movably accommodated in a pressure control chamber (53). A flow-in port (52b) and a flow-out port (54b) are formed at a pressure control surface (53b) of a valve body (46). The flow-in port (52b) is opened to the flow-in recessed portion (72a), while the flow-out port (54b) is opened to the flow-out recessed portion (74a). When the floating plate (70) is moved upwardly and the press-contacting surface is brought into contact with the pressure control surface (53b), the flow-in port (52b) is surely closed.

    摘要翻译: 本发明的目的在于提高燃料喷射装置的响应性。 流入凹部72a和流出凹部74a形成在浮动板70的压力接触表面处,该浮动板70可移动地容纳在压力控制室53中。 流入口(52b)和流出口(54b)形成在阀体(46)的压力控制表面(53b)处。 流入口52b向流入凹部72a开口,流出口54b向流出凹部74a开口。 当浮动板70向上移动并且压力接触表面与压力控制表面53b接触时,流入口52b确实关闭。