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11 条记录 (耗时 0.015 秒)

    Arrangement for controlling the oil feed to a control chamber of a piston with variable compression height
    2.
    发明授权
    Arrangement for controlling the oil feed to a control chamber of a piston with variable compression height 失效
    用于控制向可变压缩高度的活塞的控制室供油的装置

    公开(公告)号：US4784093A

    公开(公告)日：1988-11-15

    申请号：US118047

    申请日：1987-11-09

    申请人： Viktor Pfeffer ,  Friedrich Wirbeleit

    发明人： Viktor Pfeffer ,  Friedrich Wirbeleit

    IPC分类号： F02B77/00 ,  F01M1/06 ,  F02B75/04 ,  F02D15/02 ,  F02F3/00 ,  F02F3/22

    CPC分类号： F02B75/044

    摘要： The invention relates to a piston with variable compression height, particularly for internal-combustion engines, that consists of an interior piston part to which a connecting rod is coupled, and an exterior piston part that is slidably held at said interior piston part. In this case, the exterior piston, via two control chambers that are supplied with oil from the lubricating oil circuit, supports itself by adherence at the interior piston part, said control chambers being connected by a hydraulic system. In order to, in the process, keep the pressure in the oil feed to one control chamber approximately constant over the whole rotational speed range of the internal-combustion engine, the control chamber is connected to the lubricating oil circuit by means of a non-rotating control oil groove in the connecting rod bearing only in an indicated crank angle range, and/or the oil-carrying grooves and bores in the piston and in the connecting rod are coordinated with one another with respect to their cross-sections.

    摘要翻译： 本发明涉及具有可变压缩高度的活塞，特别是用于内燃机的活塞，其包括连接有连杆的内部活塞部分和可滑动地保持在所述内部活塞部分的外部活塞部件。 在这种情况下，经由从润滑油回路供给油的两个控制室的外部活塞通过在内部活塞部分的粘附而自身支撑，所述控制室通过液压系统连接。 为了在该过程中，在内燃机的整个转速范围内将进油中的压力保持在一个控制室大致恒定的情况下，控制室通过非燃烧状态连接到润滑油回路， 旋转控制油槽在连杆轴承中仅在指定的曲柄角范围内，和/或活塞和连杆中的输油槽和孔相对于它们的横截面彼此配合。

    Temperature-sensitive variation of the compression ratio in pistons having variable compression height
    3.
    发明授权
    Temperature-sensitive variation of the compression ratio in pistons having variable compression height 失效
    具有可变压缩高度的活塞中的压缩比的温度敏感变化

    公开(公告)号：US4979427A

    公开(公告)日：1990-12-25

    申请号：US317912

    申请日：1989-03-03

    申请人： Viktor Pfeffer ,  Friedrich Wirbeleit ,  Klaus Binder

    发明人： Viktor Pfeffer ,  Friedrich Wirbeleit ,  Klaus Binder

    IPC分类号： F02F3/00 ,  F02B75/04 ,  F02D15/02

    CPC分类号： F02B75/044 ,  F05C2251/042

    摘要： The invention relates to a piston having a variable compression height and two control chambers connected to each other through a hydraulic system. In order to achieve better cold-start and warm-up behavior, an oil discharge bore from the upper control chamber into the crankcase is closed by a control slide valve in the cold operating state of the engine. The blockage of the oil discharge produces a great compression height and therefore high compression. The control slide valve is connected to an expansible element which maintains it in this closed position when the engine is cold. As the engine warms up, the expansible element, due to its thermal expansion, pushes the control slide valve out of its closed position, so that the discharge of oil can occur progressively more unthrottled with rising temperature. In the warm operating state of the engine the control slide valve clears the oil discharge duct completely, and an unobstructed discharge of oil is ensured.

    摘要翻译： 本发明涉及具有可变压缩高度的活塞和通过液压系统彼此连接的两个控制室。 为了实现更好的冷启动和预热行为，在上部控制室进入曲轴箱的排油孔在发动机的冷运行状态下由控制滑阀关闭。 排油堵塞产生很大的压缩高度，因此产生高压缩。 控制滑阀连接到可膨胀元件，当发动机冷时，其保持在该关闭位置。 随着发动机的升温，膨胀元件由于其热膨胀，将控制滑阀推出其关闭位置，从而随着温度的升高，油的排放会逐渐变得不节流。 在发动机的暖运行状态下，控制滑阀完全清除排油管，保证排油畅通无阻。

    Variable compression height piston arrangement
    4.
    发明授权
    Variable compression height piston arrangement 失效
    可变压缩高度活塞装置

    公开(公告)号：US4785790A

    公开(公告)日：1988-11-22

    申请号：US118052

    申请日：1987-11-09

    申请人： Viktor Pfeffer ,  Friedrich Wirbeleit

    发明人： Viktor Pfeffer ,  Friedrich Wirbeleit

    IPC分类号： F02B75/04 ,  F02D15/02

    CPC分类号： F02D15/02 ,  F02B75/044

    摘要： An arrangement for the control of the oil feed into a control chamber of a piston with variable compression height for internal-combustion engines comprises a control valve in the longitudinal bore of a connecting rod that is provided with a flow-through bore for the oil supply of the control chamber in the operation of the internal-combustion engine. This flow-through bore is closed as a function of the inertial forces acting in the oil feed. In order to avoid a ceasing of the oil column in the longitudinal bore, the control valve has an additional control bore that is opened only in the starting phase and via which an additional amount of oil is guided from the lubricating oil circuit of the internal-combustion engine into the control chamber, which accelerates the upward control of the piston.

    摘要翻译： 用于控制进入用于内燃机的具有可变压缩高度的活塞的控制室的供油装置的装置包括在连杆的纵向孔中的控制阀，该控制阀设置有用于供油的流通孔 在内燃机运行中的控制室。 该流通孔根据作用于进油中的惯性力而关闭。 为了避免油柱在纵向孔中的停止，控制阀具有仅在起动阶段打开的另外的控制孔，并且通过该控制孔从附加的内部润滑油的润滑油回路引导附加量的油， 内燃机进入控制室，这加速了活塞的向上控制。

    Fuel supply system
    8.
    发明授权
    Fuel supply system 失效

    公开(公告)号：US06571748B2

    公开(公告)日：2003-06-03

    申请号：US10016814

    申请日：2001-12-13

    申请人： Eberhard Holder ,  Roland Kemmler ,  Martin Matt ,  Viktor Pfeffer ,  Carsten Plog ,  Thomas Stengel

    发明人： Eberhard Holder ,  Roland Kemmler ,  Martin Matt ,  Viktor Pfeffer ,  Carsten Plog ,  Thomas Stengel

    IPC分类号： F02B4308

    CPC分类号： F02M1/165 ,  F02M25/00 ,  F02M25/14 ,  Y02T10/121

    摘要： In a fuel supply system for an internal combustion engine having a fuel tank for liquid fuel, a fuel pump which draws fuel from the fuel tank and pressurized the fuel to an injection pressure at which the fuel is made available to the internal combustion engine, a fuel-fractionating device which produces at least one liquid fuel fraction from the fuel, and an accumulator which receives the liquid fuel fraction from the fuel-fractionating device, stores it and makes it available to the internal combustion engine, the fuel fraction made available and the fuel made available being fed to the internal combustion engine by the fuel supply system as a function of demand, the accumulator is a pressure accumulator and includes pressure-generating means for pressurizing fuel fraction in the pressure accumulator to the injection pressure.

    Bi-fuel injector, in particular for combustion engines, and method of injection
    9.
    发明授权
    Bi-fuel injector, in particular for combustion engines, and method of injection 有权

    公开(公告)号：US06431471B1

    公开(公告)日：2002-08-13

    申请号：US09728326

    申请日：2000-12-01

    申请人： Claus Anzinger ,  Attila Bokodi ,  Eberhard Holder ,  Gerhard Kroetz ,  Wolfgang Legner ,  Viktor Pfeffer

    发明人： Claus Anzinger ,  Attila Bokodi ,  Eberhard Holder ,  Gerhard Kroetz ,  Wolfgang Legner ,  Viktor Pfeffer

    IPC分类号： F02M5100

    摘要： A flushable bi-fuel injector, in particular for combustion engines, comprises a nozzle body incorporating a nozzle exit (11), a movably held valve needle (12) for opening and closing the nozzle exit (11), a first supply channel (13) for supplying a first liquid or a first fuel to the nozzle exit (11); and a second supply channel (23) for supplying a second liquid or a second fuel or a liquid additive to the nozzle exit (11). A ring-shaped slide gate (21) or a ring piston is arranged in a ring-shaped chamber (20) within the nozzle body (1). The slide gate (21) can be hydraulically activated to either side via differential pressure. Depending on its position, the slide gate (21) connects either the first supply channel (13) or the second supply channel (23) to the nozzle exit (11). During operation, depending on operational requirements, either a first liquid or a first fuel or a second liquid which can be a second fuel or a starting fuel, is conveyed to a combustion chamber of an internal combustion engine, with the pressure differential between the first liquid and the second liquid causing switchover of the supply in the bi-fuel injector.