Sealing device
    3.
    发明授权
    Sealing device 有权
    密封装置

    公开(公告)号:EP2290268B1

    公开(公告)日:2017-09-13

    申请号:EP10176141.9

    申请日:2002-06-04

    Abstract: A high performance sealing device having an excellent pressure resistance and realizing a prevention of damage. The sealing device usable at a working pressure of 0 to2 MPa, and not damaged even if the pressure of high-pressure fuel of 5 MPa or higher is applied thereto, wherein high pressure fuel on the high pressure side H is sealed by a first seal part 2, oil from a cam side on a low pressure side L is sealed by a second seal part 3, and the fuel slightly leaked due to failure of scraping at the first seal part is sealed by the second seal part to form a dual seal structure, and a resin ring 21 coming into slidable sealing contact with a shaft 10 is used in the first seal part 2, whereby abnormal abrasion does not occur even when fuel having less lubricity is used, and the durability of the seal is increased.

    Abstract translation: 一种高性能密封装置,具有优异的耐压性并实现防止损坏。 该密封装置能够在0〜2MPa的工作压力下使用,即使施加5MPa以上的高压燃料的压力也不会损伤,高压侧H的高压燃料被第一密封件 部分2中,来自低压侧L的凸轮侧的油被第二密封部3密封,并且由于在第一密封部分处的刮擦失败而稍微泄漏的燃料被第二密封部分密封以形成双重密封 并且在第一密封部2中使用与轴10滑动密封接触的树脂环21,因此即使使用润滑性较差的燃料也不会发生异常磨损,密封件的耐久性提高。

    KRAFTSTOFFHOCHDRUCKPUMPE, INSBESONDERE FÜR EINE KRAFTSTOFFEINSPRITZEINRICHTUNG EINER BRENNKRAFTMASCHINE
    4.
    发明公开
    KRAFTSTOFFHOCHDRUCKPUMPE, INSBESONDERE FÜR EINE KRAFTSTOFFEINSPRITZEINRICHTUNG EINER BRENNKRAFTMASCHINE 审中-公开
    KRAFTSTOFFHOCHDRUCKPUMPE,INSBESONDEREFÜREINE KRAFTSTOFFEINSPRITZEINRICHTUNG EINER BRENNKRAFTMASCHINE

    公开(公告)号:EP3189227A1

    公开(公告)日:2017-07-12

    申请号:EP15738071.8

    申请日:2015-07-14

    Inventor: KOEHLER, Achim

    Abstract: The pump has at least one pump element (10) that includes a pump piston (12) which is driven in a reciprocating motion, is guided so as to be displaceable in a cylinder bore (18) of a housing part (20) of the pump, and delimits a pump working chamber (22) in said cylinder bore. The end of the pump piston (12) facing away from the pump working chamber (22) protrudes from the cylinder bore (18). The housing part (20) has an at least approximately cylindrical section (50) which surrounds the end portion of the cylinder bore (18) facing away from the pump working chamber (22). A sealing ring (52), the inner circumference of which rests against the pump piston (12) by way of a sealing lip (54), is arranged on the end portion of the pump piston (12) protruding from the cylinder bore (18). The sealing ring (52) is placed in a receptacle (58, 60) of the pump housing part (20), said receptacle surrounding the end portion of the pump piston (12) protruding from the cylinder bore (18); the sealing ring (52) and the pump housing part (20) delimit a chamber (74; 76) in the direction of the cylinder bore (18), said chamber being connected to a fuel supply line (26). The fuel supply line (26) runs through the chamber (74; 76) such that fuel that leaks into the chamber (74; 76) is discharged from the chamber (74; 76) by the stream in the fuel supply line (26).

    Abstract translation: 所述泵具有至少一个泵元件(10),所述泵元件(10)包括以往复运动的方式被驱动的泵活塞(12),所述泵元件被引导以在所述泵壳体的壳体部分(20)的缸孔(18) 泵,并且在所述缸孔中限定泵工作室(22)。 泵活塞(12)的远离泵工作室(22)的端部从缸孔(18)突出。 壳体部分(20)具有至少大致圆柱形的部分(50),其围绕气缸孔(18)的远离泵工作室(22)的端部。 在泵活塞(12)的从缸孔(18)突出的端部上设置密封环(52),其内周通过密封唇(54)抵靠泵活塞(12) )。 密封环(52)被放置在泵壳体部分(20)的容器(58,60)中,所述容器围绕泵活塞(12)的从缸孔(18)突出的端部; 密封环(52)和泵壳体部分(20)在缸孔(18)的方向上界定腔室(74; 76),所述腔室连接到燃料供应管线(26)。 燃料供应管线(26)贯穿腔室(74; 76),使得泄漏到腔室(74; 76)中的燃料通过燃料供应管线(26)中的流从腔室(74; 76) 。

    HIGH PRESSURE PUMP
    5.
    发明公开
    HIGH PRESSURE PUMP 审中-公开
    HOCHDRUCKPUMPE

    公开(公告)号:EP3124783A1

    公开(公告)日:2017-02-01

    申请号:EP15193365.2

    申请日:2015-11-06

    Inventor: FITZNER, Stephan

    Abstract: A high pressure pump is provided to be used in a fuel feeding system for a vehicle engine and receive a fuel primarily pressurized by a low pressure pump, and secondarily compresses the fuel to increase the pressure of the fuel for supplying the fuel to a fuel injector. The high pressure pump includes a pump body and a camshaft that is rotatably installed in the pump body to be rotated using torque transmitted from an exterior of the pump body. Additionally, a roller bearing rotatably supports the camshaft in the pump body and an inlet port is disposed on the pump body to introduce a primarily pressurized fluid into the pump body. An orifice is configured to supply the fluid to the roller bearing while reducing a pressure of the fluid introduced via the inlet port.

    Abstract translation: 提供了一种用于车辆发动机的燃料供给系统中并且接收主要由低压泵加压的燃料的高压泵,并且二次压缩燃料以增加用于向燃料喷射器供应燃料的燃料的压力 。 高压泵包括泵体和凸轮轴,该凸轮轴可旋转地安装在泵体中,以便使用从泵体的外部传递的扭矩来旋转。 此外,滚子轴承可旋转地支撑泵体中的凸轮轴,并且入口端口设置在泵体上以将主要加压的流体引入泵体。 孔口构造成将流体供应到滚子轴承,同时减少经由入口引入的流体的压力。

    KOLBEN-KRAFTSTOFFPUMPE FÜR EINE BRENNKRAFTMASCHINE
    7.
    发明公开
    KOLBEN-KRAFTSTOFFPUMPE FÜR EINE BRENNKRAFTMASCHINE 审中-公开
    KOLBEN-KRAFTSTOFFPUMPEFÜREINE BRENNKRAFTMASCHINE

    公开(公告)号:EP3108135A1

    公开(公告)日:2016-12-28

    申请号:EP14816303.3

    申请日:2014-12-22

    Abstract: The invention relates to a piston fuel pump (18) for an internal combustion engine, comprising a pump cylinder (40) and a pump piston (28) which can be axially displaced in the pump cylinder (40), characterised in that the piston fuel pump (18) comprises a seal (46) which is arranged on the periphery of the pump piston (28), which has at least one nub (461) pointing in the axial direction, and that the seal (46) axially covers the at least one nub (461).

    Abstract translation: 用于内燃机的活塞燃料泵(18)技术领域本发明涉及一种用于内燃机的活塞燃料泵(18),其包括泵缸(40)和可在泵缸(40)中轴向移位的泵活塞(28),其特征在于,活塞燃料 泵(18)包括布置在泵活塞(28)的周边上的密封件(46),该密封件具有指向轴向的至少一个凸块(461),并且密封件(46)轴向地覆盖 至少一个小块(461)。

    KRAFTSTOFFPUMPE
    8.
    发明公开

    公开(公告)号:EP3001026A1

    公开(公告)日:2016-03-30

    申请号:EP15186842.9

    申请日:2015-09-25

    CPC classification number: F02M59/442 F04B1/0421

    Abstract: Kraftstoffpumpe (10), insbesondere Hochdruckkraftstoffpumpe eines Common-Rail-Kraftstoffsystems, mit einem in einem Pumpenzylinder (11) geführten Pumpenkolben (13), wobei im Bereich einer Ausnehmung (12) des Pumpenzylinders (11), in welcher der Pumpenkolben (13) geführt ist, eine über mindestens eine Zulaufbohrung (20) an ein erstes Druckniveau gekoppelte obere Zulaufnut (17) und eine über mindestens eine Ablaufbohrung (22) an ein zweites Druckniveau gekoppelte untere Ablaufnut (19) für der Schmierung und gegebenenfalls Kühlung dienenden Kraftstoff ausgebildet ist, wobei im Bereich der Ausnehmung (12) des Pumpenzylinders (11) zwischen der oberen Zulaufnut (17) und der unteren Ablaufnut (19) eine weitere, mittlere Zulaufnut (18) ausgebildet ist, die über mindestens eine Zulaufbohrung (21) an das erste Druckniveau gekoppelt ist, wobei zwischen einer oberen Kante (23) der unteren Ablaufnut (19) und einer unteren Kante (24) der mittleren Zulaufnut (18) ein erster Führungssteg (25) für den Pumpenkolben (13) und zwischen einer oberen Kante (26) der mittleren Zulaufnut (18) und einer unteren Kante (27) der oberen Zulaufnut (17) ein zweiter Führungssteg (28) für den Pumpenkolben (13) ausgebildet ist.

    Abstract translation: 本发明涉及一种燃料泵(10),更具体地说,涉及一种共轨燃料系统的高压燃料泵。 燃料泵(10)包括在泵缸(11)中引导的泵活塞(13)。 燃料泵(10)还包括:上流入槽(17),其通过至少一个流入孔(20)连接到第一压力水平,用于在需要时润滑或冷却的燃料,所述燃料泵在凹部(12)的区域中 引导泵活塞(13)的泵缸(11) 以及通过至少一个流出孔(22)连接到第二压力水平的下流出槽(19)。 在泵缸(11)的凹部(12)的区域中,在上流入槽(17)和下流出槽(19)之间形成有另外的中流入槽(18)。 中间流入槽通过至少一个流入孔(21)连接到第一压力水平。 用于泵活塞(13)的第一引导腹板(25)形成在下流出槽(19)的上边缘(23)和中流入槽(18)的下边缘(24)之间。 用于泵活塞(13)的第二引导腹板(28)形成在中间流出槽(18)的上边缘(26)和上流入槽(17)的下边缘(27)之间。

    HIGH PRESSURE PUMP
    9.
    发明公开
    HIGH PRESSURE PUMP 有权
    高压泵

    公开(公告)号:EP2941562A1

    公开(公告)日:2015-11-11

    申请号:EP14747621.2

    申请日:2014-07-31

    Abstract: A high pressure pump for delivering a fluid includes a pump housing with a longitudinal axis and a housing cavity, a piston partly arranged in the housing cavity and axially moveable within the housing cavity and having an axial end directed opposite a driving side of the high pressure pump, and a sealing unit having a sealing body arranged radially outside of the piston such that a first part of the housing cavity is sealed fluid-tight against a second part of the housing cavity. The sealing body includes a neck with an inner diameter smaller than a first diameter of a part of the piston arranged between the sealing body neck and the axial end of the piston. The piston has a second diameter in an axial area in which the sealing body neck is arranged, which second diameter is smaller than the first diameter.

    Abstract translation: 一种用于输送流体的高压泵(1),包括: - 具有纵向轴线(9)和壳体腔(7)的泵壳体(5); - 活塞(10),其部分地布置在所述壳体空腔(7)中并且能够在所述壳体空腔(7)内轴向移动并且具有与所述高压泵(1)的驱动侧(8)相反的轴向端部; - 具有密封体(20)的密封单元(15),所述密封体布置在所述活塞(10)的径向外侧,使得所述壳体腔体(7)的第一部分(21)流体密封地抵靠第二部分 其中所述密封体(20)包括具有小于所述活塞(10)的一部分的第一直径(D_P1)的内径(D_S)的颈部(22),其中, (20)的颈部(22)和活塞(10)的轴向端部之间,其中活塞(10)在轴向区域中具有第二直径(D_P2),在所述轴向区域中,颈部 )设置成小于活塞(10)的第一直径(D_P1)。

    HIGH PRESSURE PUMP
    10.
    发明公开
    HIGH PRESSURE PUMP 有权
    高压泵

    公开(公告)号:EP2923070A1

    公开(公告)日:2015-09-30

    申请号:EP14747675.8

    申请日:2014-08-06

    Abstract: The invention relates to a high pressure pump for a common rail pump system and to a common rail pump system. A high pressure pump (2) for a common rail pump system comprises a pump body (4) having a cylinder (6) with a piston bore (8) and a piston (10) reciprocally driven in the piston bore (8) by an eccentric to pressurize fuel in the cylinder (6). The piston (10) comprises an inner end (12) located in the piston bore (8) and an outer end (14) outside the piston bore (8). A bellow (20) having a first opening (22) and a second opening (24) is arranged between the piston (10) and the pump body (4), wherein the piston (10) extends through the first opening (22) and the second opening (24), wherein the bellow (20) is connected to the pump body (40) such that the first opening (22) is sealed on the pump body (4, 50) and wherein the bellow (20) is connected to the outer end (14) of the piston (10) such that the second opening (24) is sealed on the piston (10). This prevents mixing of engine oil and fuel, when the pump is directly attached to an engine. The bellow may be connected to a drainage line over a one-way valve.

    Abstract translation: 本发明涉及用于共轨泵系统和共轨泵系统的高压泵。 用于共轨泵系统的高压泵(2)包括具有带活塞孔(8)的缸(6)和在活塞孔(8)中通过活塞(8)往复驱动的活塞(10)的泵体(4) 偏心以加压气缸(6)中的燃料。 活塞(10)包括位于活塞孔(8)中的内端(12)和位于活塞孔(8)外部的外端(14)。 具有第一开口(22)和第二开口(24)的波纹管(20)布置在活塞(10)和泵体(4)之间,其中活塞(10)延伸穿过第一开口(22),并且 (20)连接到泵体(40),使得第一开口(22)密封在泵体(4,50)上,并且其中波纹管(20)连接到第二开口(24),其中波纹管 到活塞(10)的外端(14),使得第二开口(24)密封在活塞(10)上。 当泵直接安装在发动机上时,可以防止发动机机油和燃油混合。 波纹管可以通过单向阀连接到排水管线。

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