公开(公告)号：WO1988009456A1

公开(公告)日：1988-12-01

申请号：PCT/US1988001676

申请日：1988-05-20

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  NETZEL, James ,  POSPISIL, Mark

IPC: F16J15/34

CPC classification number: F16J15/3464 ,  Y10S277/91

Abstract: A disclosed mechanical seal (210) for use between a housing (14) and a rotatable shaft (12) supported by the housing, having adjacent annular primary (220) and mating (22) sealing rings, each ring having a generally radial sealing face (22f, 220f). Means seals and holds the first sealing ring nonrotatably relative to the housing, and means seals and holds the second sealing ring to rotate with the shaft. One sealing ring (220) is moveable axially of the shaft, and springs (44) urge this one ring toward the other sealing ring (22), which is axially fixed relative to the shaft (12). The axially moveable seal ring (220) is centered coaxially with respect to the axis of the seal ring through engagement of a centering element (26) which is centered relative to the shaft and which engages the axially moveable sealing ring (220) to center it relative to the shaft. The centering element (26) engages the axially moveable sealing ring (220) to effect such centering at the periphery of the axially moveable ring exposed to the pressurized fluid to be sealed.

Abstract translation: 一种公开的机械密封件（210），用于在壳体（14）和由壳体支撑的可旋转轴（12）之间使用，具有相邻的环形初级（220）和配合（22）密封环，每个环具有大致径向的密封面 （22f，220f）。 装置密封并保持第一密封环相对于壳体不可旋转，并且装置密封并保持第二密封环与轴一起旋转。 一个密封环（220）可以在轴的轴向移动，并且弹簧（44）将该一个环推向另一个相对于轴（12）轴向固定的密封环（22）。 可轴向移动的密封环（220）相对于密封环的轴线同轴地定心，定心元件（26）相对于轴定中心并且与轴向可移动的密封环（220）接合以使其居中 相对于轴。 定心元件（26）接合轴向可移动的密封环（220），以在暴露于待密封的加压流体的可轴向移动的环的周边处实现这种对中。

公开(公告)号：WO1990006435A1

公开(公告)日：1990-06-14

申请号：PCT/US1989005339

申请日：1989-11-20

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  ULRICH, Donald, C. ,  KRAUSE, Roger

IPC: F02F05/00

CPC classification number: F16J15/3244 ,  F05C2225/04 ,  F16J15/3228 ,  F16J15/3284 ,  Y10S277/924 ,  Y10S277/938

Abstract: A multi-layer radial lip seal assembly (10) adapted to be retained to the housing of an automotive air conditioning compressor (12) and to be disposed about a rotatable shaft extending through a chamber provided in the housing. The lip seal assembly (10) includes a first seal member or disc of virgin FEP (36) adjacent to a second seal member or disc of graphite-filled PTFE (38). A retainer (24) is provided to support the first and second seal members and an elastomer (42) is molded to the retainer and seals the seal members to the retainer. The first seal member (36) acts to protect the second seal (38) member during installation and quickly wears away, so that the second seal member (38) becomes the primary seal member.

公开(公告)号：WO1997031205A1

公开(公告)日：1997-08-28

申请号：PCT/US1997002395

申请日：1997-02-18

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  ULRICH, Donald, Charles

IPC: F16J15/32

CPC classification number: F16J15/3224

Abstract: A unitary radial lip seal assembly (20) to provide a fluid tight seal between a shaft (10) and a housing bore (14) through which the shaft (10) extends includes an annular rigid retainer (32), a resilient body portion (30) secured to the retainer (32) and defining at least one sealing lip (44, 46, 48) to seal against the rotatable shaft (10) and a sleeve bearing member (70) supported by said seal assembly outboard of the sealing lip. In one form, the bearing member (70) is rigidly connected to the retainer (32), in another, it is resiliently mounted to provide shaft (10) vibration dampening. In the latter embodiment, the bearing member includes a radial wall urged into frictional engagement with a radial wall of the resilient body to restrict rotation of the bearing member.

Abstract translation: 在轴（10）和轴（10）延伸通过的轴（10）和轴承孔（14）之间提供流体密封的单一径向唇密封组件（20）包括环形刚性保持器（32），弹性体部分 30），其固定到所述保持器（32）上并且限定至少一个密封唇（44,46,48）以密封所述可旋转轴（10）;以及套筒支承构件（70），其由所述密封组件支撑在所述密封唇外侧 。 在一种形式中，轴承构件（70）刚性地连接到保持器（32），而另一种形式，其被弹性地安装以提供轴（10）减振。 在后一实施例中，轴承构件包括被推动与弹性体的径向壁摩擦接合的径向壁，以限制轴承构件的旋转。

公开(公告)号：WO1995012081A1

公开(公告)日：1995-05-04

申请号：PCT/US1994007862

申请日：1994-07-11

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  WASSER, James, R.

IPC: F16J15/38

CPC classification number: F16J15/3404 ,  Y10S277/93

Abstract: A mechanical end face seal (28) with a mating ring (70) having a beveled inner diameter (78) extending frusto-conically to the back face. Atmosphere or other fluids (20) located outside of the housing can enter through the frusto-conical opening (80) between the primary ring (146) and the shaft (16) to cool the seal rings during shaft rotation. In a preferred embodiment, a drive collar (90) disposed adjacent the primary ring and attached to the shaft includes a series of cantilever projection portions (92) which rotate in the atmosphere outside the housing to circulate the atmosphere into the frusto-conical space (80) between the beveled inner diameter (78) of the stationary mating ring (70) to provide a fan blade effect.

Abstract translation: 具有配合环（70）的机械端面密封件（28）具有向后表面延伸的截头圆锥形的具有斜面内径（78）的凹槽。 位于壳体外部的大气或其他流体（20）可以通过主环（146）和轴（16）之间的截头圆锥形开口（80）进入，以在轴旋转期间冷却密封环。 在优选实施例中，邻近主环设置并连接到轴的驱动套环（90）包括一系列悬臂突出部分（92），其在壳体外部的大气中旋转，以将大气循环到截头圆锥形空间（ 80）在固定配合环（70）的斜切内径（78）之间，以提供风扇叶片效果。

公开(公告)号：WO1997012015A1

公开(公告)日：1997-04-03

申请号：PCT/US1996015243

申请日：1996-09-24

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  DEMENDI, Joseph, F. ,  MALLE, Philippe, R. ,  LE NEVE, Yannick, A. ,  CHEN, Xin ,  CLEMENS, William, R.

IPC: C10M103/02

CPC classification number: C10M103/06 ,  C10M103/00 ,  C10M2201/00 ,  C10M2201/041 ,  C10M2201/042 ,  C10M2201/061 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2203/10 ,  C10M2207/125 ,  C10M2207/129 ,  C10M2209/101 ,  C10N2210/00 ,  C10N2240/02 ,  F16J15/3496

Abstract: A composition of matter for use in tribological applications, such as in mechanical seals, bearings and other sliding or rubbing components, which provides good durability and wear characteristics. The material is used in the "softer" one of two relatively sliding members which are in, or may come into, contact with each other during the relative rotation of one of the members relative to the other. The material is a carbon or carbonaceous formed material, such as is normally used in the manufacture of a primary seal ring in a mechanical seal, and comprises an additive compound which contains at least one compound from a group consisting of neodymium fluoride, praseodymium fluoride, gadolinium fluoride and lanthanum fluoride.

Abstract translation: 用于摩擦学应用的物质组合物，例如机械密封件，轴承和其它滑动或摩擦部件，其提供良好的耐久性和磨损特性。 该材料用于两个相对滑动构件中的“较软”的一个，该两个相对滑动构件在构件之一相对于另一个相对旋转期间彼此接触或可能相互接触。 该材料是碳或碳质的成形材料，例如通常用于制造机械密封件中的主密封环的材料，并且包含添加剂化合物，其包含至少一种氟化镨，氟化镨， 氟化钆和氟化镧。

公开(公告)号：WO1996031716A2

公开(公告)日：1996-10-10

申请号：PCT/US1996003923

申请日：1996-03-21

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  SADOWSKI, Richard

IPC: F16J00/00

CPC classification number: F16J15/348 ,  F16J15/363

Abstract: A mechanical end face seal for sealing between a housing and a relatively rotating shaft which seal includes a pair of relatively rotating annular rings having seal faces in sealing contact with each other to define a seal interface, with one of the rings adapted to be secured to said shaft for rotation therewith, and the other fixed relative to the housing and one being axially movable toward the other. A generally annular flexible metal diaphragm secured between the axially movable ring and either the housing or shaft includes a generally radial disc-like central portion which defines a plurality of annular convolutions formed by protrusions extending in opposite axial directions. The diaphragm is pressed onto a cylindrical surface on the ring at about the center of mass of the ring. The surface includes a coating of a compound including PTFE, grit and a binder. In one form, the seal utilizes a second seal ring pressed into fluid tight relation with its associated carrier at about the center of mass of the ring. In anotherform, a seal ring is provided which is secured to its associated carrier in fluid tight relation utilizing welding techniques. The associated methods are disclosed.

Abstract translation: 用于在壳体和相对旋转的轴之间密封的机械端面密封件，该密封件包括一对相对旋转的环形环，其具有彼此密封接触的密封面以限定密封界面，其中一个环适于固定到 所述轴与其一起旋转，另一个相对于壳体固定，并且一个可朝向另一个轴向移动。 固定在可轴向移动的环和壳体或轴之间的大致环形的柔性金属隔膜包括大致径向的盘状中心部分，其限定由沿相反轴向方向延伸的突起形成的多个环形卷积。 隔膜以大约环形质心的方式压在环上的圆柱形表面上。 表面包括包含PTFE，砂砾和粘合剂的化合物的涂层。 在一种形式中，密封件利用与其相关联的载体在环的质心附近被压入与流体密封关系的第二密封环。 在另一种形式中，提供密封环，其利用焊接技术以流体密封的关系固定到其相关联的载体。 公开了相关方法。

公开(公告)号：WO1990001118A1

公开(公告)日：1990-02-08

申请号：PCT/US1989003130

申请日：1989-07-17

Applicant: JOHN CRANE INC.

Inventor： JOHN CRANE INC. ,  BOUTIN, Allan, J. ,  OCHEDA, Daniel, D.

IPC: F04D29/14

CPC classification number: F04D29/126 ,  F16J15/008 ,  F16J15/3412

Abstract: An impeller pump including a housing (12) defining a seal cavity (26) having a shaft (20) rotatably mounted therein and an expeller (46) to pump fluid from the seal cavity. A dynamic seal (58) provides a fluid tight seal between the housing and the shaft. The seal comprises an axially movable primary seal ring (76) which rotates with the shaft and a mating stationary seal ring (80). Biasing means (96) urge the primary seal ring into sealing engagement with the mating seal ring (80). The radial face of the mating seal ring defines a plurality of spiral grooves (114). When the pump is operating, the primary seal ring rotates with the shaft and the grooves create a pumping action to pump air between the faces causing the primary seal ring to lift away from the mating seal ring to prevent wear and avoid undue heat generation.