公开(公告)号：US4438339A

公开(公告)日：1984-03-20

申请号：US334171

申请日：1981-12-24

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F16C32/06 ,  F16C33/10 ,  F16C7/04

CPC分类号： F16C33/1075 ,  F16C17/18 ,  F16C32/0692

摘要： A low axial stiffnesss thrust bearing is disclosed. The thrust bearing includes a housing having a generally cylindrical space formed therein and a generally cylindrical thrust collar located coaxially within the space. The axial length of the cylindrical space is sufficiently greater than the axial length of the thrust collar to permit the thrust collar to move axially within the cylindrical space over a predetermined distance and to insure that first and second fluid chambers are formed on opposite sides of the thrust collar when the thrust collar is located centrally within the cylindrical space. A fluid circuit supplies fluid under pressure to the first and second chambers in such a manner that the fluid attempts to maintain the thrust collar at a predetermined axial location within the space even when external thrust forces are placed on the thrust collar.

摘要翻译： 公开了一种低轴向刚度推力轴承。 推力轴承包括具有形成在其中的大致圆柱形空间的壳体和同轴地位于该空间内的大致圆柱形止推环。 圆柱形空间的轴向长度足够大于止推环的轴向长度，以允许推力环在圆柱形空间内轴向移动预定距离，并确保第一和第二流体室形成在 推力环位于圆柱形空间中央时的推力环。 流体回路将压力下的流体提供给第一和第二室，使得即使当外推力被放置在止推环上时，流体也试图将推力环保持在空间内的预定轴向位置。

公开(公告)号：US5042616A

公开(公告)日：1991-08-27

申请号：US512024

申请日：1990-04-16

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F01D25/18 ,  F16C17/06 ,  F16C33/10 ,  F16N27/00 ,  F16N29/02

CPC分类号： F16C33/1085 ,  F01D25/18 ,  F16C17/06 ,  F16N27/00 ,  F16N29/02

摘要： In a rotating shaft machine, the rotating shaft is usually equipped with a thrust collar which cooperates with stationary thrust bearings on either side of the thrust collar to prevent excessive axial movement of the rotating shaft. Lubrication is furnished to each bearing to protect the bearing as the shaft migrates toward that bearing. Prior art lubrication systems provided either equal amounts of lubrication fluid to equal sized bearings or a lesser amount of lubrication fluid to a smaller thrust bearing. It has been discovered that the total flow requirement for lubrication fluid can be reduced by using a lubrication fluid distribution means which tracks the position of the thrust collar and provides lubrication in response to the position of the thrust collar relative to the thrust bearings.

摘要翻译： 在旋转轴机器中，旋转轴通常配备有止推环，其与止推环的任一侧上的固定推力轴承配合，以防止旋转轴的过度的轴向运动。 当轴转向该轴承时，润滑被配备到每个轴承以保护轴承。 现有技术的润滑系统为相同尺寸的轴承提供等量的润滑流体，或将更少量的润滑流体提供给较小推力轴承。 已经发现，通过使用润滑流体分配装置可以减少润滑流体的总流量需求，所述润滑流体分配装置跟踪止推环的位置并响应于止推环相对于止推轴承的位置而提供润滑。

公开(公告)号：US4464935A

公开(公告)日：1984-08-14

申请号：US492740

申请日：1983-05-09

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： G01H1/00 ,  G01M1/22

CPC分类号： G01H1/003

摘要： A shaft vibration evaluator employs measured displacement of a shaft in the vicinity of a bearing together with known or measured shaft eccentricity to calculate the dynamic bearing load so that damaging loads can be avoided. Shaft vibration or motion is assumed to be elliptical having major and minor axes which are inclined at angles with respect to the bearing displacement sensors. The magnitude of the major and minor axes and the angular displacement are calculated from the measured parameters and provide one set of inputs to the load calculator. Bearing eccentricity can be calculated from a knowledge of shaft speed, lubricant temperature and known bearing geometry. For a given eccentricity, a set of four damping coefficients and four spring coefficients of the bearing may be derived. These coefficients are the remaining inputs to the dynamic load calculator.

摘要翻译： 轴振动评估器采用轴承附近的已知或测量轴偏心的轴的测量位移来计算动态轴承载荷，从而可以避免损伤载荷。 假定轴振动或运动是具有相对于轴承位移传感器的角度倾斜的主轴和短轴的椭圆形。 根据测量参数计算主轴和短轴的大小以及角位移，并向负载计算器提供一组输入。 轴承偏心度可以从轴速度，润滑剂温度和已知轴承几何知识中计算得出。 对于给定的偏心度，可以导出一组四个阻尼系数和四个弹簧系数的轴承。 这些系数是动态负载计算器的剩余输入。

公开(公告)号：US4325583A

公开(公告)日：1982-04-20

申请号：US164071

申请日：1980-06-30

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F16C32/06

CPC分类号： F16C32/0692 ,  F16C32/064

摘要： A low axial stiffness thrust bearing is disclosed. The thrust bearing includes a housing having a generally cylindrical space formed therein and a generally cylindrical thrust collar located coaxially within the space. The axial length of the cylindrical space is sufficiently greater than the axial length of the thrust collar to permit the thrust collar to move axially within the cylindrical space over a predetermined distance and to insure that first and second fluid chambers are formed on opposite sides of the thrust collar when the thrust collar is located centrally within the cylindrical space. A fluid circuit supplies fluid under pressure to the first and second chambers in such a manner that the fluid attempts to maintain the thrust collar at a predetermined axial location within the space even when external thrust forces are placed on the thrust collar.

摘要翻译： 公开了一种低轴向刚度推力轴承。 推力轴承包括具有形成在其中的大致圆柱形空间的壳体和同轴地位于该空间内的大致圆柱形止推环。 圆柱形空间的轴向长度足够大于止推环的轴向长度，以允许推力环在圆柱形空间内轴向移动预定距离，并确保第一和第二流体室形成在 推力环位于圆柱形空间中央时的推力环。 流体回路将压力下的流体提供给第一和第二室，使得即使当外推力被放置在止推环上时，流体也试图将推力环保持在空间内的预定轴向位置。

公开(公告)号：US4046223A

公开(公告)日：1977-09-06

申请号：US622628

申请日：1975-10-15

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F16C37/00 ,  F01D5/08 ,  F01D25/12 ,  F01D25/16 ,  F02C7/06 ,  F16C33/00 ,  F16C33/10 ,  G12B15/02 ,  F01M9/10

CPC分类号： F01D25/125

摘要： A journal bearing for rotatably supporting a turbomachinery shaft is supported by a housing which defines a sump chamber around the bearing. Means are provided to deliver a flow of lubricating fluid to the journal bearing and to sequentially or serially spray or impinge the lubricating fluid, after use for lubricating purposes, against the inner wall surface of the housing to thereby provide cooling for the bearing sump without increasing the flow of lubricating fluid beyond that required for bearing lubrication.

摘要翻译： 用于可旋转地支撑涡轮机械轴的轴颈轴承由限定围绕轴承的集油室的壳体支撑。 提供装置以将润滑流体流传递到轴颈轴承，并且在用于润滑目的用于润滑目的之后依次或连续地喷射或冲击润滑流体，以抵抗壳体的内壁表面，从而为轴承油槽提供冷却而不增加 润滑液的流量超过轴承润滑所需的流量。

公开(公告)号：US4668108A

公开(公告)日：1987-05-26

申请号：US714867

申请日：1985-03-22

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F16C17/03 ,  F16C27/00 ,  F16C27/06 ,  F16C27/02 ,  F16C27/04

CPC分类号： F16C27/00 ,  F16C17/03

摘要： An anisotropic bearing support for a high-speed rotor includes at least two support devices having different values of stiffness. The two support devices act at substantially the same point on the perimeter of the rotor along radial directions which are angularly spaced apart from each other. The resulting anisotropic bearing support reduces the incidence and severity of rotor vibration and improves rotor stability.

摘要翻译： 用于高速转子的各向异性轴承支撑件包括具有不同刚度值的至少两个支撑装置。 两个支撑装置沿着彼此成角度地间隔开的径向方向在转子的周边上的基本上相同的点处起作用。 所得到的各向异性轴承支架减少了转子振动的发生率和严重程度，并提高了转子的稳定性。

公开(公告)号：US4339160A

公开(公告)日：1982-07-13

申请号：US224323

申请日：1981-01-12

申请人： James D. McHugh

发明人： James D. McHugh

IPC分类号： F01D11/04 ,  F16C33/10 ,  F16C33/74

CPC分类号： F16C33/1085 ,  F01D11/04

摘要： An arrangement for minimizing blockage of drain back holes from bearing housings seal cavity areas is provided. Leakage drain tubes, made of high thermal conductivity material, are positioned in the path of lube oil drain flow and serve to carry leakage oil from seal air cavities back to the lube oil drain flow path. The leakage drain tubes are cooled by the lubricating oil in the drain flow path, extending from the sump to the oil drain pipe and include flow restrictor portions at their ends to minimize hot gas leakage around the labyrinth seal.

摘要翻译： 提供了一种用于最小化从轴承座密封空腔区域排出后孔的堵塞的装置。 泄漏排水管由高导热性材料制成，位于润滑油排放流道的路径上，用于将密封空气中的漏油运送回润滑油排放流路。 泄漏排放管由排水流路中的润滑油冷却，从油底壳延伸至排油管，并在其末端包括流量限制器部分，以最小化迷宫式密封周围的热气泄漏。