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公开(公告)号：US5733109A
公开(公告)日：1998-03-31
申请号：US501758
申请日：1995-07-12
申请人： Jack G. Sundberg
发明人： Jack G. Sundberg
CPC分类号： F01C21/0881 , F01C21/0863 , F04C2/3442
摘要： A novel single acting variable displacement vane pump (VDVP) incorporating novel vanes and undervane venting which produce selective regulated pressure-loading of the vanes against the cam surface and more positive tracking in the incoming seal arc and the outgoing or discharge seal arc of the pump rather than uniform pressure balancing of the vanes throughout the 360.degree. cam chamber. The vanes incorporated into the present pumps preferably are sectional two-piece vane assemblies comprising an upper vane section which slidably supports a lower vane section and incorporates a fluid pressurizable cavity between said vane sections which, when pressurized, forces the vane sections in opposite radial directions, and which enables the vane sections to come together and integrate when the cavity is depressurized. The vane cavity is open to the fluid pressure on one side of the vanes while the undervane area of the vane slots, below the vanes, is open to the fluid pressure one the opposite side of the vanes. Thus, in the inlet seal arc area of the pump the vane cavity becomes pressurized to force the vane sections apart and force the upper vane section against the cam surface, and in the outlet or discharge seal arc area of the pump the vane cavity becomes depressurized and the undervane area of each vane slot becomes pressurized, to force the vane sections together and force the upper vane section against the cam surface.
摘要翻译： 一种新颖的单作用可变排量叶片泵（VDVP），其结合了新颖的叶片和底盘排放，其产生叶片相对于凸轮表面的选择性调节的压力加载，并且在进入的密封弧中的更多的正跟踪以及泵的输出或排出密封弧 而不是整个360°凸轮腔中的叶片的均匀压力平衡。 结合到本泵中的叶片优选地是分段两片式叶片组件，其包括上叶片部分，其可滑动地支撑下叶片部分并且在所述叶片部分之间并入流体可加压的腔体，当加压时，叶片部分在相反的径向方向 ，并且当空腔被减压时，这使得叶片部分能够聚集在一起并整合。 叶片腔对叶片的一侧的流体压力开放，而叶片下方的叶片槽的底部区域与叶片相对侧的流体压力敞开。 因此，在泵的入口密封弧区域中，叶片腔被加压以迫使叶片部分分开并迫使上叶片部分抵靠凸轮表面，并且在泵的出口或排出密封弧区域中，叶片腔被减压 并且每个叶片槽的底座区域被加压，以迫使叶片部分在一起并迫使上部叶片部分抵靠凸轮表面。
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公开(公告)号：US5545014A
公开(公告)日：1996-08-13
申请号：US114253
申请日：1993-08-30
CPC分类号： F04C14/226 , F01C21/0863 , F04C2/3441
摘要： A durable, single action, variable displacement vane pump capable of undervane pumping, components thereof, and pressure balancing method. The pump comprises a cylindrical barstock rotor member having large diameter journal ends and central vane slots uniformly spaced therearound. The vane slots are elongate and have a central vane-supporting portion of maximum depth surrounded at each end by extension portions having depths which decrease axially to the surface of rotor member. The vaned rotor is rotatably supported within a unitary cam member having opposed faces and a circular bore therethrough forming a cam chamber having a continuous interior circular cam surface. The vane slot extensions in the rotor project outwardly beyond the cam chamber. An opposed pair of manifold bearings rotatably support the journal ends of the rotor and overlap the vane slot extensions to admit fluid to expanding vane bucket areas of the rotating vaned rotor and also into the vane slot extensions and undervane areas for pressure balancing purposes. Fluid passages and pressures within the pump are arranged to balance forces acting on various parts to reduce stress, improve sealing, and permit sharing of a fluid pressure source.
摘要翻译： 一种耐用，单作用，能够进行底盘泵送的可变排量叶片泵，其部件和压力平衡方法。 泵包括具有大直径轴颈末端和在其周围均匀间隔的中心叶片槽的圆柱形棒料转子件。 叶片槽是细长的并且具有最大深度的中心叶片支撑部分，每个端部具有通过延伸部分的延伸部分，所述延伸部分的深度与转子部件的表面轴向减小。 叶片式转子可旋转地支撑在具有相对面的整体凸轮构件中，并且圆形孔穿过其形成具有连续内部圆形凸轮表面的凸轮室。 转子中的叶片槽延伸部向外突出超出凸轮室。 相对的一对歧管轴承可旋转地支撑转子的轴颈端并与叶片槽延伸部重叠，以将流体接纳到旋转的叶片转子的扩展叶片铲斗区域，并且还可以进入叶片槽延伸部和底座区域以用于压力平衡目的。 泵内的流体通道和压力被布置成平衡作用在各个部件上的力以减少应力，改善密封并允许流体压力源共享。
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公开(公告)号：US5413466A
公开(公告)日：1995-05-09
申请号：US142274
申请日：1993-10-25
CPC分类号： F04D9/04 , F04C11/005
摘要： A unified fuel pump assembly combines a vane-type pump and a booster stage for the inlet of the vane-type pump, in a unitary structure to substantially reduce "windage" losses caused by relatively moving parts. The unified structure also includes an electric motor subassembly to provide motive power, and a liquid ring pump, which helps to process air bubbles through the fuel pump, is coupled to the electric motor rotor to further avoid "windage" losses. The vane type pump relies on the use of a central shaft capable of having a substantially uniform and relatively large diameter from end to end.
摘要翻译： 一个统一的燃油泵组件结合了叶片式泵和用于叶片式泵的入口的增压器级，以一体式结构，大大减少了由相对运动的部件引起的“风向”损失。 统一结构还包括提供动力的电动机子组件和有助于通过燃料泵处理气泡的液环泵耦合到电动机转子，以进一步避免“风向”损失。 叶片型泵依靠使用能够从端到端具有基本均匀且相对较大直径的中心轴。
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公开(公告)号：US4553914A
公开(公告)日：1985-11-19
申请号：US583353
申请日：1984-02-24
申请人： Godwin L. Noell , Jack G. Sundberg
发明人： Godwin L. Noell , Jack G. Sundberg
CPC分类号： F04C14/28 , F02M37/18 , F04C15/0061 , F16D9/08 , F04C2270/56
摘要： A pumping system has a main pumping unit (14) and a backup pumping unit (16) mounted in a common housing (4) and adapted to be driven by a drive member (44). The main pumping unit is connected to the drive member by a main drive coupling (68) which incorporates a reduced shear section (76) designed to fail upon a jamming or seizure of the main pumping unit. A backup drive coupling (78) connected to the backup pumping unit is adapted to be axially displaced and threadably connected to the drive member after stoppage of the main pumping unit. An actuation device (18) functions to axially displace the backup drive coupling to establish threaded engagement. When the backup drive coupling is engaged with the drive member, the backup pumping unit will provide flow.
摘要翻译： 泵送系统具有主泵送单元（14）和安装在公共壳体（4）中并适于由驱动构件（44）驱动的备用泵单元（16）。 主泵单元通过主驱动联轴器（68）连接到驱动构件，该主驱动联轴器（68）包括设计成在主抽油机的卡住或卡住时失效的减小的剪切部分（76）。 连接到备用泵送单元的备用驱动联轴器（78）适于在主泵送单元停止之后轴向移位并螺纹连接到驱动构件。 致动装置（18）用于轴向移动备用驱动联轴器以建立螺纹接合。 当备用驱动联轴器与驱动部件接合时，备用抽油机将提供流量。
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公开(公告)号：US5545018A
公开(公告)日：1996-08-13
申请号：US427774
申请日：1995-04-25
申请人： Jack G. Sundberg
发明人： Jack G. Sundberg
CPC分类号： F04C14/226 , F04C15/0023 , F04C2/3442
摘要： A pump comprising a durable rotor member having large diameter journal ends at each side of a central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pumps comprise novel cylindrical floating ring seal elements having a support body which continuously seals the face of the cam member, and have a movable inner ring assembly which becomes pressure-loaded against the rotor journals during use, to minimize or limit axial pressure leakage while balancing or minimizing bearing load.
摘要翻译： 一种泵，包括耐用的转子构件，其在中心叶片部分的每一侧具有大直径的轴颈端部，该中心叶片部分包括具有可滑动地接合配合叶片元件的井区的叶片槽。 本叶片泵包括新颖的圆柱形浮动环形密封元件，其具有连续地密封凸轮构件的表面的支撑体，并且具有可移动内圈组件，其在使用期间抵靠转子轴颈压力加载，以最小化或限制轴向压力 平衡或最小化轴承负载时的泄漏。
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公开(公告)号：US4711619A
公开(公告)日：1987-12-08
申请号：US933664
申请日：1986-11-21
申请人： Jack G. Sundberg , Godwin L. Noell
发明人： Jack G. Sundberg , Godwin L. Noell
CPC分类号： F04C14/223
摘要： A variable displacement vaned fuel pump (10) is suitable for inclusion in a fixed displacement fuel control system for a gas turbine engine. The pump includes two track elements (34,36) having cam surfaces (42) which engage cam followers (44) on a cam actuation ring (40). A link (66) having a predetermined spring load maintains the track elements in their radially inner maximum displacement positions until the vane force and pressure forces drive the track elements radially outwardly, moving the actuation ring against its spring load. Displacement of the pump is reduced in the radially outward positions of the track elements which reduces the required bypass flow to hold a head constant across a fuel metering valve and attendant fuel heating.
摘要翻译： 可变排量式无油燃料泵（10）适合包含在用于燃气涡轮发动机的固定排量燃料控制系统中。 该泵包括具有凸轮表面（42）的两个轨道元件（34,36），凸轮表面接合凸轮致动环（40）上的凸轮从动件（44）。 具有预定弹簧载荷的连杆（66）将轨道元件保持在其径向内部的最大位移位置，直到叶片力和压力将径向向外驱动轨道元件，使致动环抵抗其弹簧载荷移动。 泵的位移在轨道元件的径向向外的位置减小，这降低了所需的旁路流量，以保持头部恒定横跨燃料计量阀和伴随的燃料加热。
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公开(公告)号：US4529361A
公开(公告)日：1985-07-16
申请号：US600149
申请日：1984-04-13
申请人： Jack G. Sundberg
发明人： Jack G. Sundberg
CPC分类号： F04C2/3447 , F04B23/103
摘要： A vane pump (2), with undervane pumping capability, has a housing (4,14) within which a cam ring (16) is mounted. The cam ring has a cam surface which defines a pumping cavity and which includes two diametrically opposed inlet arcs (48, 50), two diametrically opposed discharge arcs (38, 40) and seal arcs (56, 58, 60, 62) disposed between the inlet arcs and discharge arcs. A rotor (12), mounted for rotation within the housing, carries a plurality of spokes (22). Mounted upon the spokes for radially outward and inward movement are channel-shaped vanes (28) having arcuate tips (46) for engaging the cam surface. Variable volume chambers (94), which provide undervane pumping, are formed between the radially outer ends of the spokes and the vanes. The variable volume chambers communicate with intervane volumes (93) through grooves (86) on the spokes. The vane tips engage seal arcs along a line of contact (76) selected to insure that the vanes are pressure balanced.
摘要翻译： 具有底部抽吸能力的叶片泵（2）具有安装有凸轮环（16）的壳体（4,14）。 所述凸轮环具有凸轮表面，所述凸轮表面限定泵送腔，并且包括两个直径相对的入口弧（48,50），两个直径相对的排出弧（38,40）和密封弧（56,58,60,62） 入口弧和放电弧。 安装成在壳体内旋转的转子（12）承载着多个辐条（22）。 安装在轮辐上用于径向向外和向内运动是具有用于接合凸轮表面的弓形尖端（46）的通道形叶片（28）。 在轮辐的径向外端和叶片之间形成有提供阴螺纹泵送的可变容积室（94）。 可变容积室通过轮辐上的凹槽（86）与间隙体积（93）连通。 叶片尖端沿着选择用于确保叶片压力平衡的接触线（76）接合密封弧。
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公开(公告)号：US5833438A
公开(公告)日：1998-11-10
申请号：US509400
申请日：1995-07-31
申请人： Jack G. Sundberg
发明人： Jack G. Sundberg
CPC分类号： F04C15/06 , F04C15/0023 , F04C2/3441
摘要： A variable displacement vane pump comprising a durable rotor member having journal ends at each side of a larger diameter central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pump comprise novel cylindrical ring seal elements having a unitary body which seal the faces of the cam member, and which overlap the central vane section and vane slot extensions. The seal elements include first fuel inlet passages in the inlet arc segment thereof, and fuel discharge passages in the discharge arc thereof, both of said passages being open to the vane slot extensions and to the cam chamber for the continuous supply and pressure discharge of fuel.
摘要翻译： 一种可变排量叶片泵，包括耐用的转子构件，其在较大直径的中心叶片部分的每一侧具有轴颈端部，该叶片槽具有可滑动地接合配合叶片元件的井区。 本叶片泵包括新颖的圆柱形环形密封元件，其具有密封凸轮构件的表面并且与中心叶片部分和叶片槽延伸部重叠的整体。 密封元件包括其入口弧段中的第一燃料入口通道和其排出弧中的燃料排放通道，两个通道对叶片槽延伸部和凸轮室开放，用于燃料的连续供应和压力排放 。
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9.发明授权
公开(公告)号：US5738500A
公开(公告)日：1998-04-14
申请号：US544374
申请日：1995-10-17
CPC分类号： F04C2/344 , F01C21/106 , F04C14/22 , F04C14/265 , F04C15/0026
摘要： A variable displacement vane pump comprising a durable rotor member having journal ends at each side of a larger diameter central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pump comprises an outer cylindrical cam enclosure or spacer loaded against ring seal elements to support the faces of the seal elements closely spaced from the cam faces and reduce the actuation force required for adjustment of the displacement capacity of the pump. The cam faces include a biased segment seal in the high pressure discharge arc area. The seal elements include first fuel inlet passages in the inlet arc segment thereof, and fuel discharge passages in the discharge arc segment thereof, both of said passages being open to the vane slot extensions and to the cam chamber for the continuous supply and pressure discharge of fuel.
摘要翻译： 一种可变排量叶片泵，包括耐用的转子构件，其在较大直径的中心叶片部分的每一侧具有轴颈端部，该叶片槽具有可滑动地接合配合叶片元件的井区。 本叶片泵包括外部圆柱形凸轮外壳或隔离件，其抵靠环形密封元件，以支撑密封元件的与凸轮面紧密间隔的面，并且减小调节泵的排量容量所需的致动力。 凸轮面包括在高压放电弧区域中的偏压段密封。 密封元件包括其入口弧段中的第一燃料入口通道和排放弧段中的燃料排放通道，两个通道对叶片槽延伸部和凸轮室开放，用于连续供应和压力排放 汽油。
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公开(公告)号：US4669735A
公开(公告)日：1987-06-02
申请号：US782414
申请日：1985-10-01
申请人： Jack G. Sundberg , Andrew Gahura
发明人： Jack G. Sundberg , Andrew Gahura
CPC分类号： F16J15/008 , F16J15/3404 , Y10S277/914
摘要： A shaft seal assembly 10 for a high speed centrifugal pump has a primary seal (30) and a secondary seal (32). During normal operation the primary seal has its nose (38) in firm engagement with a seal face (28) and the secondary seal has its nose (42) in light engagement with the seal face. Upon failure of the primary seal, the nose of the secondary seal is urged into firm engagement with the seal face. An orifice (58) in the nose of the secondary seal allows for controlled leakage which indicates primary seal failure.
摘要翻译： 用于高速离心泵的轴封组件10具有初级密封件（30）和次级密封件（32）。 在正常操作期间，主密封件具有与密封面（28）牢固接合的鼻部（38），并且次级密封件具有与密封面轻微接合的第二密封件。 在主密封件失效的情况下，辅助密封件的鼻子被迫与密封面牢固地接合。 次级密封件的鼻部中的孔口（58）允许受控的泄漏，其指示主密封件失效。
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