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    • 32. 发明授权
    • Gear pump cavitation reduction
    • 齿轮泵气蚀减少
    • US07878781B2
    • 2011-02-01
    • US12001279
    • 2007-12-11
    • James S. Elder
    • James S. Elder
    • F01C21/00
    • F04C2/18F04C2/086F04C2/088F04C14/26F04C15/0026F04C15/0049F04C2240/30F04C2240/52F04C2240/54
    • A gear pump for operating with reduced likelihood of cavitation occurrences in the fluid being pumped thereby, the pump having a pair of gears each supported on a corresponding one of a pair of gear with teeth provided in each gear that mesh with at least one tooth of the other when such teeth have been rotated into a meshing region in the gear plane, and with one of the gear shafts being rotatably connectable to a motor. Bearing structures rotatably support corresponding ones of each of the pair of gear shafts with the bearing structures having bearing surfaces adjacent those gear sides. A pressurized fluid passageway is provided in at least one of the bearing structures across from the meshing region and extending between surface openings at the bearing surface of that bearing structure that are positioned on opposite sides of an alignment axis in that bearing surface, the surface openings being separated from one another by at least the width of a tooth provided in the pair of gears.
    • 一种齿轮泵,用于以较少的气穴运动的可能性发生在泵送的流体中,泵具有一对齿轮,每一个齿轮分别支撑在一对齿轮中,齿轮中设置有齿,该齿与齿中的至少一个齿啮合, 另一个在这种齿已经旋转到齿轮平面中的啮合区域中,并且其中一个齿轮轴可旋转地连接到电动机。 轴承结构可旋转地支撑一对齿轮轴中的每一对齿轮轴,轴承结构具有邻近齿轮侧的轴承表面。 加压流体通道设置在至少一个轴承结构中,横跨啮合区域延伸,并且在轴承结构的支承表面处的表面开口之间延伸,该轴承结构位于该轴承表面的对准轴线的相对侧上, 通过至少设置在所述一对齿轮中的齿的宽度彼此分离。
    • 33. 发明申请
    • AIRCRAFT MAIN ENGINE FUEL PUMP WITH MULTIPLE GEAR STAGES USING SHARED JOURNALS
    • 具有多台齿轮的飞机主发动机燃油泵
    • US20100266437A1
    • 2010-10-21
    • US12424745
    • 2009-04-16
    • Simon Martin-Dye
    • Simon Martin-Dye
    • F01C1/08B23P15/00
    • F04C11/001F04C2/18F04C2210/1044F04C2230/60F04C2240/52Y10T29/49245
    • A multistage gear pump assembly includes first and second gear pumps that use common shafts and are axially separated by a spacer plate secured within a common bore and secured to the housing. Pressurized bearings are provided at opposite axial ends of the first and second gear pumps. The second gear pump handles cruise and idle operations of the aircraft while the first gear pump stage assists in meeting higher demand modes of engine operation. Otherwise, the first gear pump is maintained at a minimal pressure to reduce energy consumption and still provide desired stability and eliminate issues associated with bearing oil whirl associated with prior known arrangements. However, when additional assistance is required, such as during takeoff, climb, or windmill relight, the first gear pump advantageously contributes to the increased pressure.
    • 多级齿轮泵组件包括使用公共轴的第一和第二齿轮泵,并且通过固定在公共孔中并固定到壳体上的间隔板轴向隔开。 加压轴承设置在第一和第二齿轮泵的相对轴向端。 第二齿轮泵处理飞行器的巡航和空闲操作,而第一齿轮泵级辅助满足发动机运行的更高需求模式。 否则,第一齿轮泵被保持在最小压力以降低能量消耗,并仍然提供期望的稳定性并消除与现有已知布置相关联的轴承油旋转相关的问题。 然而,当需要额外的辅助时,例如在起飞,爬升或风车重新靠近时,第一齿轮泵有利地有助于增加压力。
    • 35. 发明授权
    • Water-injected screw compressor element
    • 注水螺杆压缩机元件
    • US07614862B2
    • 2009-11-10
    • US11884706
    • 2006-02-22
    • Ann Valerie Van Der HeggenBenjamin Moens
    • Ann Valerie Van Der HeggenBenjamin Moens
    • F01C1/16
    • F04C18/16F04C29/0021F04C29/02F04C29/026F04C2210/147F04C2240/52
    • Improved water-injected screw compressor element which mainly consists of a housing (2) on the one hand, confining a rotor chamber (5) with an inlet (6) on one far end and an outlet (7) on the other far end and in which two co-operating rotors (3, 4) are provided which are bearing-mounted in the housing (2) with their shaft (16, 20) by means of water-lubricated bearings (17, 18, 21, 22), characterised in that for every rotor are provided two pistons, a first piston (37, 38) and a second piston (17, 21) respectively, which can be each axially shifted in a guide, whereby each of these pistons (17, 21, 37, 38) makes contact with the rotor (3, 4) concerned with one side or is part of it, and makes contact with a pressure chamber (41, 42, 43, 44) with an opposite side, in order to partly or almost entirely compensate for axial force components exerted by the compressed gasses on the rotors.
    • 改进的注水螺杆压缩机元件主要由壳体(2)组成,一方面将转子室(5)与一个远端的入口(6)和另一远端的出口(7) 其中,通过水润滑的轴承(17,18,21,22),通过它们的轴(16,20)轴承安装在壳体(2)中的两个配合的转子(3,4) 其特征在于,对于每个转子分别设置有两个活塞,分别可以在引导件中轴向移动的第一活塞(37,38)和第二活塞(17,21),由此这些活塞(17,21, 37,38)与一侧相关的转子(3,4)或其一部分接触,并与具有相对侧的压力室(41,42,43,44)接触,以部分地或部分地 几乎完全补偿由压缩气体施加在转子上的轴向力分量。
    • 36. 发明授权
    • Scroll compressor with discharge valve
    • 带排气阀的涡旋压缩机
    • US07371059B2
    • 2008-05-13
    • US11522250
    • 2006-09-15
    • Kirill IgnatievJames F. Fogt
    • Kirill IgnatievJames F. Fogt
    • F01C21/00F03C2/00F04C2/00
    • F04C18/0215F04C23/008F04C29/0021F04C2240/52F04C2240/60
    • A scroll compressor utilizes scroll wrap profiles which are designed with a rapid compression scroll wrap profile. This profile utilizes a shorter wrap and lower vane aspect ratios during the compression process. The non-orbiting scroll member is integrated with the main bearing housing. The drive shaft extends through the main bearing housing, through the non-orbiting scroll member and through the orbiting scroll member. In one embodiment, a counterweight is disposed adjacent the orbiting scroll member. In another embodiment, and upper bearing housing is disposed adjacent the orbiting scroll member. In yet another embodiment, an upper bearing housing is disposed adjacent the orbiting scroll member with a counterweight disposed adjacent the upper bearing housing.
    • 一种涡旋式压缩机利用涡旋包裹轮廓,其被设计成具有快速的压缩卷绕轮廓。 该轮廓在压缩过程中使用较短的卷绕和较低的叶片长宽比。 非轨道运行涡旋件与主轴承座一体化。 驱动轴穿过主轴承壳体,通过非绕动涡旋件并且通过绕动涡旋件延伸。 在一个实施例中,配重邻近绕动涡旋件设置。 在另一个实施例中,上轴承座邻近绕动涡旋件设置。 在另一个实施例中,上轴承壳体邻近绕动涡旋构件设置有邻近上轴承壳体设置的配重。