HYDROTRANSFORMATOR
    3.
    发明授权

    公开(公告)号:EP1299644B1

    公开(公告)日:2005-02-02

    申请号:EP01953814.9

    申请日:2001-06-28

    申请人: Bosch Rexroth AG

    发明人: SCHÄFFER, Rudolf

    摘要: The invention relates to a hydraulic transformer in which a plurality of displacers are guided in a displacer section. The travel of the displacer is determined by a lifting element, the pressure supply and discharge being controlled by a control element comprising at least three control grooves. According to the invention, either the displacer section, the lifting element or the control element can be driven while depending on the component driven the lifting element or the displacer section is positioned in such a way that it is freely adjustable, and the third, remaining component is positioned in such a way that it is fixed to the housing.

    Mehrzylindrige Hochdruckplungerpumpe
    4.
    发明公开
    Mehrzylindrige Hochdruckplungerpumpe 有权
    的多汽缸的高压柱塞

    公开(公告)号:EP1277955A3

    公开(公告)日:2004-01-02

    申请号:EP02013912.7

    申请日:2002-06-24

    申请人: Reitzig, Klaus

    发明人: Reitzig, Klaus

    IPC分类号: F04B1/14 F04B1/28

    CPC分类号: F04B1/14 F04B1/146 F04B1/295

    摘要: Die Erfindung betrifft eine mehrzylindrige Hochdruckplungerpumpe mit mehreren Plungern (7) und einer in einem Gehäuse (1) angeordneten Antriebseinheit hierfür, wobei die Plunger (7) äquidistant auf einem Kreis angeordnet sind und die Antriebseinheit eine in dem Gehäuse (1) drehbar gelagerte Walze (18) umfaßt, die eine Taumelscheibe (35) um die Drehachse der Walze (18) taumelnd mitnimmt, wobei gegen die Taumelscheibe (35) mit jeweils einem Plunger (7) gekoppelte, axial bewegliche Plungerbetätiger (6) gedrückt sind.

    HYDROTRANSFORMATOR
    5.
    发明公开
    HYDROTRANSFORMATOR 有权
    HYDRO变压器

    公开(公告)号:EP1299644A1

    公开(公告)日:2003-04-09

    申请号:EP01953814.9

    申请日:2001-06-28

    申请人: Bosch Rexroth AG

    发明人: SCHÄFFER, Rudolf

    摘要: The invention relates to a hydraulic transformer in which a plurality of displacers are guided in a displacer section. The travel of the displacer is determined by a lifting element, the pressure supply and discharge being controlled by a control element comprising at least three control grooves. According to the invention, either the displacer section, the lifting element or the control element can be driven while depending on the component driven the lifting element or the displacer section is positioned in such a way that it is freely adjustable, and the third, remaining component is positioned in such a way that it is fixed to the housing.

    HIGH PRESSURE PUMP AND ENGINE SYSTEM USING THE SAME
    6.
    发明公开
    HIGH PRESSURE PUMP AND ENGINE SYSTEM USING THE SAME 有权
    高压泵和机这种泵

    公开(公告)号:EP1171713A4

    公开(公告)日:2002-11-20

    申请号:EP01910995

    申请日:2001-02-20

    申请人: CATERPILLAR INC

    摘要: A high pressure pump system (14) for use with a hydraulic engine system (10), such as a fuel injection system (10) or a compression release brake system, provides variable delivery of pressurized fluid using sleeve metering principles. The relative position of metering sleeves (56) with respect to pumping pistons (32) is controlled electro-hydraulically by a control circuit (60, 160). The control circuit (60, 160) receives pressurized fluid from the pump delivery gallery (50) or another high pressure area (50, 52) and, using a pressure reducer (64, 164), reduces the operating pressure within the control circuit (60, 160) to a substantially constant pressure lower than the pump output pressure. Lower operating pressure within the control circuit (60, 160) improves the manufacturability of the control circuit components and helps to achieve better control of the pump output.