-
公开(公告)号：US4605235A
公开(公告)日：1986-08-12
申请号：US649676
申请日：1984-09-12
CPC分类号： F16J15/3464 , F04D29/126
摘要： A shaft seal assembly (2) for a fuel pump includes a seal housing (4) attached to the fuel pump housing (6). A drive shaft (10) mounted for rotation in the fuel pump housing has a sealing face (14) which is engaged by a thrust face (42) of a thrust member (40) and by a seal face (18) of a carbon face seal (20). The thrust member and the carbon face seal are positioned with a steel carrier (26) mounted in the seal housing. A universal washer (32) is located between the carrier and the rear wall of the seal housing so that the carrier may undergo universal movement in response to movements of the thrust member. Misalignments between the axis of the shaft and the axis of the seal housing result in corresponding movements of the thrust member and the carrier which enable the axis of the face seal to remain aligned with the axis of the shaft. This arrangement permits the carbon face seal to be pressure balanced so that a relatively high fuel pressure surrounding the shaft will not produce unacceptable wear of the carbon face seal.
摘要翻译： 用于燃料泵的轴封组件（2）包括附接到燃料泵壳体（6）的密封壳体（4）。 安装成用于在燃料泵壳体中旋转的驱动轴（10）具有密封面（14），该密封面（14）由推力构件（40）的推力面（42）和碳表面（18）的密封面 密封（20）。 推力构件和碳面密封件与安装在密封壳体中的钢托架（26）定位。 通用垫圈（32）位于承载件和密封壳体的后壁之间，使得承载件可以响应推力构件的运动而经受万能运动。 在轴的轴线和密封壳体的轴线之间的对准导致推力构件和载体的相应运动，使得面密封件的轴线能够保持与轴的轴线对准。 这种布置允许碳面密封件被压力平衡，使得围绕轴的相对较高的燃料压力不会产生不可接受的碳面密封的磨损。
-
公开(公告)号：US06375435B2
公开(公告)日：2002-04-23
申请号：US09741524
申请日：2000-12-20
IPC分类号： F04B4900
CPC分类号： F04C14/22 , F01C21/0863
摘要： A variable displacement vane pump includes a pump housing having a cylindrical interior chamber, a cylindrical rotor member mounted for rotational movement within the interior chamber of the pump housing, a cam member mounted for pivotal movement within the interior chamber of the pump housing about a fulcrum aligned with the vertical centerline of the interior chamber, the cam member defining a cam body having a circular bore extending therethrough for receiving the rotor member, the cam body having lateral sealing lands formed thereon, the sealing lands having arcuate sealing surfaces defining segments of a cam arc through which the cam member pivots, and static cam seals supported within the interior chamber of the pump housing and oriented on each end of a chord of the cam arc, each cam seal biased into a continuous contact position with an adjacent sealing surface of the cam member.
摘要翻译： 可变排量叶片泵包括具有圆柱形内部室的泵壳体，安装成用于在泵壳体的内部腔室内旋转运动的圆柱形转子构件，安装成用于在泵壳体的内部腔室内围绕支点枢转运动的凸轮构件 与内部室的垂直中心线对准，凸轮构件限定具有延伸穿过其中的圆形孔的凸轮体，用于接纳转子构件，凸轮体具有形成在其上的侧向密封平台，密封凸台具有弓形密封表面， 凸轮弧通过凸轮构件枢转而枢转，并且静止凸轮密封件被支撑在泵壳体的内部腔室内并且定位在凸轮弧的弦的每个端部上，每个凸轮密封件被偏压成与相邻的密封表面的连续接触位置 凸轮构件。
-
公开(公告)号：US4417734A
公开(公告)日：1983-11-29
申请号：US489019
申请日：1983-04-27
申请人： Jack G. Sundberg
发明人： Jack G. Sundberg
IPC分类号： F16J15/34
CPC分类号： F16J15/3464
摘要： A shaft seal assembly for an aircraft engine fuel pump has a seal housing (30) mounted upon the pump housing (32). A carbon face seal (42) is in wiping engagement with a seal face (40) on the drive shaft (36) of the pump. The carbon face seal has a recess (46) which receives a projection (44) for preventing face seal rotation. A universal washer (46), which is mounted in the seal housing in front of the carbon face seal, embodies four protuberances (48, 50, 52, 54) having bores (56, 58, 60, 62) which extend completely through the universal washer. Compression springs (64, 66) are contained in the bores and have their rear and front extremities in respective engagement with washers (70, 72) disposed on either side of the universal washer. The spring force, which is transmitted to the carbon face seal by the front washer, is overcome as pump pressure pushes the shaft toward the front of the pump. In the compressed condition, non-axial shaft alignments are accommodated by the universal washer.
摘要翻译： 用于飞机发动机燃料泵的轴封组件具有安装在泵壳体（32）上的密封壳体（30）。 碳面密封件（42）与泵的驱动轴（36）上的密封面（40）擦拭接合。 碳面密封件具有容纳用于防止面部密封旋转的突起（44）的凹部（46）。 安装在碳面密封件前面的密封壳体中的通用垫圈（46）具有四个具有孔（56,58,60,62）的突起（48,50,52,54），其具有完全延伸通过 万能洗衣机 压缩弹簧（64,66）被容纳在孔中，并且其后端和前端与设置在通用垫圈的任一侧上的垫圈（70,72）相配合。 由于泵的压力将泵朝向泵的前方推动，所以被前垫圈传递到碳面密封件的弹簧力被克服。 在压缩状态下，非轴向轴对准由通用垫圈容纳。
-
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。
-
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。
-
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。
-
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。
-
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。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.017 秒)
