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公开(公告)号：US10590928B2
公开(公告)日：2020-03-17
申请号：US15824542
申请日：2017-11-28
发明人： Sean M. McGowan , Mark R. Claywell
摘要： A gear pump can be equipped in an engine oil system. The gear pump has a housing, a first gear, and a second gear. The housing has an outlet passage for exiting oil, and has one or more outlet openings for exiting air. The first gear has a set of first teeth with multiple first roots and first tips. The second gear has a set of second teeth with multiple second roots and second tips. The outlet opening(s) is situated in the housing so that it can communicate with a first clearance, with a second clearance, or with both the first and second clearances. The first clearance is established at the confrontation of one of the first roots and one of the second tips. And the second clearance is established at the confrontation of one of the second roots and one of the first tips.
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公开(公告)号：US10125765B2
公开(公告)日：2018-11-13
申请号：US14961090
申请日：2015-12-07
申请人： Jesel, Inc.
发明人： Daniel H. Jesel
IPC分类号： F01C1/18 , F03C2/00 , F03C4/00 , F04C15/00 , F04C2/18 , F04C11/00 , F04C2/08 , F04C15/06 , F04C23/00
摘要： A fluid pump system for an engine includes a transmission acting as a first pump and a second pump. In one embodiment, the first pump is a scavenge pump and the second pump is a pressure pump with the transmission being a gear set for altering a drive ratio between a transmission input drive and an input drive of the second pump, thereby allowing additional control of a speed of the second pump in comparison to the engine. The transmission, acting as a scavenge pump, can provide a scavenge pump function to an oil pan of the engine, returning engine oil that is present there from both normal drain back and acceleration/deceleration forces.
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公开(公告)号：US10000895B2
公开(公告)日：2018-06-19
申请号：US15287248
申请日：2016-10-06
申请人： Caterpillar Inc.
发明人： Jordan Beckhusen
摘要： A rotating hydraulic gear motor for use with vibratory compactors, includes a long shaft and a first gear attached to the long shaft, a short shaft and a second gear attached to the short shaft, the second gear meshing with the first gear. A yoke bushing member includes a first aperture and a second aperture that are spaced away from each other a predetermined distance. The long shaft is disposed in the first aperture of the yoke bushing member and the short shaft is disposed in the second aperture.
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公开(公告)号：US09062549B2
公开(公告)日：2015-06-23
申请号：US12919837
申请日：2009-05-15
CPC分类号： F01C21/02 , F04C18/16 , F04C2230/91 , F04C2230/92 , F04C2240/54
摘要： Fluid-injected screw-type compressor element comprising two co-operating rotors (2 and 3) which are radially and axially bearing-mounted in a housing (1), whereby this housing confines a rotor chamber (4) in which the rotors (2 and 3) are situated and in which a fluid circuit (11) for the injection of a fluid discharges, characterized in that the radial bearing of at least one rotor is formed by the contact of the rotor concerned with the part of the wall of the housing opposite the radial perimeter of the rotor concerned and/or the co-operation with the other rotor and by maximally one additional radial bearing.
摘要翻译： 流体注入的螺杆式压缩机元件包括径向和轴向地轴承安装在壳体（1）中的两个协调转子（2和3），由此该壳体限制转子室（4），转子室 和3），其中用于喷射流体的流体回路（11）排出，其特征在于，至少一个转子的径向轴承通过与所述转子相关的所述转子的所述部分接触而形成 壳体与相关转子的径向周边相对和/或与另一转子的配合以及最多一个额外的径向轴承。
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公开(公告)号：US09022761B2
公开(公告)日：2015-05-05
申请号：US13591884
申请日：2012-08-22
申请人： William D. Flavelle
发明人： William D. Flavelle
CPC分类号： F04C2/084 , F04C2/18 , F04C15/0019 , F04C15/0026 , F04C2250/20
摘要： Elliptical or oval shaped gears of a positive displacement gear pump are disclosed. The gears have specially designed teeth at the ends of the gears' major and minor diameter axes. For example the teeth at the ends regions of the major diameter axes include radially extending wipers or vanes that extend and run against the circular gear case bore walls to seal liquid slip paths at radial running clearance areas between the tips of the gear teeth and the case bores. The pump may also have moveable wearplates on one or both sides of the gears that may be loaded laterally to seal liquid slip paths at lateral running clearance areas between the side faces of the gears and the pump faceplate and backplate.
摘要翻译： 公开了一种正排量齿轮泵的椭圆形或椭圆形齿轮。 这些齿轮在齿轮的主轴和小直径轴的端部都有特殊设计的齿。 例如，在大直径轴线的端部区域处的齿包括径向延伸的擦拭器或叶片，其延伸并抵靠圆形齿轮箱孔壁以在齿轮齿的顶端与壳体之间的径向运行间隙处密封液体滑动路径 孔 泵还可以在齿轮的一侧或两侧具有可移动的耐磨板，其可侧向地装载以在齿轮的侧面与泵面板和背板之间的侧向运行间隙区域处密封液体滑动路径。
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公开(公告)号：US08899951B2
公开(公告)日：2014-12-02
申请号：US13190518
申请日：2011-07-26
申请人： Kim Boris Friedrich
发明人： Kim Boris Friedrich
CPC分类号： F04C14/185 , F04C2/18 , F04C14/26
摘要： A displacement pump, including a pump chamber and a regulating chamber which are separated from each other by a piston, wherein the pump has a device with which fluid flowing from the pump chamber toward the regulating chamber can be drained.
摘要翻译： 排量泵，包括通过活塞彼此分离的泵室和调节室，其中泵具有可以从泵室流向调节室的流体排出的装置。
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公开(公告)号：US08845313B2
公开(公告)日：2014-09-30
申请号：US13299488
申请日：2011-11-18
CPC分类号： F01M1/02 , F01M2001/0238
摘要： Embodiments of an oil pump for an engine have an increased pump capacity while maintaining or marginally increasing the overall physical size of the pump. In some embodiments, this increased capacity is reflected in a pump length efficiency ratio, which compares an effective gear length (LG) of first and second pump gears used in the oil pump, to an effective housing length (LH). The effective housing length (LH) is a longitudinal distance between surfaces on opposite ends of the oil pump that must be maintained for the oil pump to fit into an available space. Accordingly, the pump length efficiency ratio indicates how much of the effective housing length (LH) can be occupied by the gears. Alternatively, the pump capacity is measured using an output flow efficiency ratio, which compares a theoretical pump flow (FP) at a given gear speed (SG) to the effective housing length (LH) of the pump.
摘要翻译： 用于发动机的油泵的实施例具有增加的泵容量，同时保持或稍微增加泵的整体物理尺寸。 在一些实施例中，这种增加的容量反映在泵长度效率比中，其将油泵中使用的第一和第二泵齿轮的有效齿轮长度（LG）与有效壳体长度（LH）进行比较。 有效的外壳长度（LH）是油泵相对两端的表面之间的纵向距离，必须保持油泵适合可用空间。 因此，泵长度效率比表示有效的壳体长度（LH）可以被齿轮占据多少。 或者，使用输出流量效率比来测量泵容量，该比率将给定齿轮速度（SG）的理论泵流量（FP）与泵的有效壳体长度（LH）进行比较。
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公开(公告)号：US08726660B2
公开(公告)日：2014-05-20
申请号：US13356536
申请日：2012-01-23
CPC分类号： F02B33/38 , F01C21/106 , F02B29/0412 , F02B37/18 , F02M26/08 , F02M26/09 , F02M26/23 , F04C18/086 , F04C18/123 , F04C23/003 , F04C27/004 , F04C29/12 , Y02T10/17
摘要： A supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator. The flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slideable seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization therebetween.
摘要翻译： 增压压缩机包括可旋转地安装在壳体中的多个转子，用于空气的第一入口，用于再循环废气的第二入口和流动分离器。 流动分离器布置在壳体的内部并且被配置成与多个转子中的至少一个转子形成可滑动的密封，所述可滑动密封件至少部分地将第一入口与第二入口流体地隔离并延迟其间的压力平衡。
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公开(公告)号：US08512018B2
公开(公告)日：2013-08-20
申请号：US11906115
申请日：2007-09-28
CPC分类号： F04C2/16 , F04C2/088 , F04C15/0049
摘要： A hydraulic device has an inlet side and an outlet side and includes two meshing cogwheels. Each cogwheel has external oblique teeth and is arranged between an inlet side and an outlet side. At least one control groove is provided on an end side of the cogwheels. The control groove periodically produces a pressure equalizing connection during the rotation of the cogwheels.
摘要翻译： 液压装置具有入口侧和出口侧，并且包括两个啮合齿轮。 每个齿轮具有外倾斜齿，并布置在入口侧和出口侧之间。 在齿轮的端侧设有至少一个控制槽。 控制槽周期性地在齿轮旋转期间产生压力均衡连接。
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公开(公告)号：US08430657B2
公开(公告)日：2013-04-30
申请号：US12640036
申请日：2009-12-17
CPC分类号： F04C2/14 , F04C2/086 , F04C15/0026 , F04C2230/80 , F04C2240/30 , F04C2240/52
摘要： An external gear pump including seals, bearings, bushing/seal housings, choke collars and shafts that are all removable for maintenance and/or replacement without removing either endplate or internals from the case assembly. The preferred pump includes four bearing caps that can be removed without removing the pump from its mounted position. By removing the four bearing caps, access is gained inside the pump housing to all of the seals, bearings, bushing/seal housings, choke collars and most importantly, the drive and idler shafts within the pump housing. Further, the two shafts can be slipped out of the pump without disturbing the internal parts and endplates. This capability facilitates maintenance and replacement of major components without removing the pump from its mounted position.
摘要翻译： 外部齿轮泵包括密封件，轴承，衬套/密封件外壳，扼流圈和轴，它们可拆卸以进行维护和/或更换，而无需从外壳组件移除端板或内部件。 优选的泵包括四个轴承盖，其可以在不从其安装位置移除泵的情况下被移除。 通过拆卸四个轴承盖，泵壳体内的所有密封件，轴承，衬套/密封件壳体，扼流圈以及最重要的是泵壳内的驱动轴和惰轮轴之间进入。 此外，两个轴可以从泵中滑出而不会干扰内部部件和端板。 该功能有助于维护和更换主要部件，而不会将泵从其安装位置拆下。
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