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    • 21. 发明公开
    • A tooth top sealing mechanism for a gear pump or motor
    • 机构zur Zahnkopfabdichtungfüreine Zahnradpumpe oder einen Zahnradmotor。
    • EP0081293A1
    • 1983-06-15
    • EP82305755.9
    • 1982-10-28
    • KAYABA KOGYO KABUSHIKI KAISHA
    • Teruyama, Hideo
    • F04C2/08F04C15/00
    • F04C15/062F04C15/0019
    • A gear tooth top sealing mechanism for a gear pump or motor, comprising a pair of gears (30,31), being engaged with each other with their external teeth, the shafts (32,34) of the gears, being supported by bearings provided on both sides in a housing, a seal block (41), being provided between the tooth tops of said gears and the inside wall surface of the housing, arranged to be pressed to the tooth tops of the gears by a high pressure acting on the outside surface of the seal block, and side plates (46), being provided to cover both the sides of said gears at least on the high pressure side, to closely contact, at their outside ends, the inside surface of said seal block and to contact, at their inside ends, the circumferential surfaces of protrusions (36a, 38a) of said bearings, whereby the substantial tooth top sealing length t of said seat Is made almost equal to, but larger than the adjacent teeth pitch P of said gears, and throttle slots (54, 55) are formed in the positions adjacent to said tooth top sealing portions on the low pressure side.
    • 一种用于齿轮泵或马达的齿轮齿顶密封机构,包括一对齿轮(30,31),它们以其外齿彼此接合,所述齿轮的轴(32,34)由提供的轴承支撑 在壳体的两侧,密封块(41)设置在所述齿轮的齿顶和壳体的内壁表面之间,被布置成通过作用在所述齿轮的高压被压在齿轮的齿顶上 密封块的外表面和侧板(46)设置成至少在高压侧覆盖所述齿轮的两侧,在其外端处紧密接触所述块的内表面并且接触 在其内端处,所述轴承的突起(36a,38a)的圆周表面,由此所述密封件的实际齿顶密封长度l大致等于但大于所述齿轮和节流阀的相邻齿间距P 槽(54,55)形成在邻近的位置 所述齿顶密封部分在低压侧。 低压侧的部分。
    • 24. 发明公开
    • FÖRDERAGGREGAT
    • EP2616685A2
    • 2013-07-24
    • EP11735661.8
    • 2011-07-26
    • Robert Bosch GmbH
    • SKRYNSKI, Evgenij
    • F04C15/06F04C3/08
    • F04C2/00F04C3/08F04C15/062F04C2240/603
    • A delivery unit is already known, which comprises a drive shaft and a rotor driven by the drive shaft. The rotor is rotatably arranged in a stator housing, wherein the rotor has a toothing on the end face of said rotor that is remote from the drive shaft, wherein said toothing meshes with a toothing constructed on the stator housing. The drive shaft comprises an oblique sliding plane interacting with the rotor and which is constructed on a shoulder of the drive shaft and allows the rotor to gyrate with the rotor axis thereof about the drive axis of the drive shaft. Work spaces are formed between the toothing of the rotor and the toothing of the stator housing, wherein said work spaces can be filled via an inlet and emptied via an outlet. In one embodiment the fluid is admitted axially and discharged radially, and in the other embodiment the fluid is admitted and discharged axially. For that purpose, control valves in the form of non-return valves are required. The non-return valves cause additional internal leakages, resulting in a reduction in the volumetric efficiency of the pump. The valves are additional parts, which are associated with additional costs and an increased risk of failure. In the delivery unit according to the invention the control valves can be dispensed with. According to the invention the inlet (15) is provided in a channel (20) of the drive shaft (2) and the outlet (16) is provided at the shoulder (6) of the drive shaft (2).
    • 输送单元是已知的,其包括驱动轴和由驱动轴驱动的转子。 转子可旋转地布置在定子壳体中,其中转子在远离驱动轴的所述转子的端面上具有齿部,其中所述齿部与构造在定子壳体上的齿啮合。 驱动轴包括与转子相互作用的斜滑动平面,并且该斜滑动平面构造在驱动轴的肩部上并且允许转子绕其转子轴线围绕驱动轴的驱动轴线旋转。 工作空间形成在转子的齿部和定子壳体的齿部之间,其中所述工作空间可以经由入口填充并且经由出口排空。 在一个实施例中,流体轴向进入并径向排出,而在另一个实施例中,流体进入并轴向排出。 为此,需要采用止回阀形式的控制阀。 止回阀造成额外的内部泄漏,导致泵的容积效率降低。 这些阀门是附加部件,与额外的成本和增加的故障风险相关联。 在根据本发明的输送单元中,可以省去控制阀。 根据本发明,入口(15)设置在驱动轴(2)的通道(20)中,并且出口(16)设置在驱动轴(2)的肩部(6)处。
    • 28. 发明公开
    • Mechanically driven roller vane pump
    • 机械驱动的滑轮叶片泵
    • EP1760316A3
    • 2007-10-17
    • EP06018831.5
    • 2000-05-17
    • Van Doorne's Transmissie B.V.
    • Van Der Sluis, Francis Maria AntoniusVan Spijk, Johannes Gerardus Ludovicus
    • F04C2/344F04C15/06
    • F04C15/06F04C2/3445F04C2/3447F04C15/062
    • The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2), a cam ring (5) surrounding the carrier (3) in radial direction, and roller elements (7) being provided in slots (6) in the carrier periphery. The spaces between the pump housing (2), the carrier (3), the cam ring (5) and the roller elements (7) define a number of pump chambers (8). Furthermore, the pump is provided with feed apertures (9) for allowing a flow of fluid to a pump chamber (8) and with discharge apertures (10) for allowing a flow of fluid from a pump chamber (8). According to the invention constructional measurements are taken to avoid the occurrence of cavitation and to obtain higher pump efficiency.
    • 本发明涉及一种适用于在机动车辆的自动变速器中泵送变速器流体的滚子叶片泵。 该泵设有泵壳体(2),位于泵壳体(2)内部的可旋转托架(3),沿径向围绕托架(3)的凸轮环(5),以及滚动元件 (7)设置在载体周边的槽(6)中。 泵壳体(2),托架(3),凸轮环(5)和滚动元件(7)之间的空间限定多个泵室(8)。 此外,泵设有用于允许流体流动到泵室(8)的进料孔(9)和用于允许来自泵室(8)的流体流动的排放孔(10)。 根据本发明,采取结构测量来避免气蚀的发生并获得更高的泵效率。