公开(公告)号：US6062815A

公开(公告)日：2000-05-16

申请号：US92714

申请日：1998-06-05

申请人： Robert S. Holt ,  John C. Dahlheimer

发明人： Robert S. Holt ,  John C. Dahlheimer

IPC分类号： F04D29/04 ,  F04D29/041 ,  F04D29/12 ,  F16J15/34 ,  F16J15/36 ,  F04D29/10 ,  F04D29/08 ,  F16J15/00

CPC分类号： F04D29/0413 ,  F04D29/126 ,  F16J15/348 ,  F16J15/36 ,  F05B2240/52

摘要： A unitized seal impeller thrust system includes an impeller unit which includes a tubular neck portion that has flat surfaces on opposite sides of one another. The impeller unit includes a plurality of radially extending blades and a circular trough surrounding the neck portion. The system further includes a seal head assembly which is secured within the trough, and a seal seat assembly which engages the seal head assembly. The system further includes a thrust washer which engages the seal seat assembly and the retainer ring which is secured to the tubular neck portion at an end of the neck portion. The retainer ring also engages the thrust washer in a ball and socket type arrangement. The system provides a unitized seal, impeller, thrust system that is capable of preload testing and/or leak testing before assembly of the pump unit.

摘要翻译： 单元密封叶轮推力系统包括叶轮单元，该叶轮单元包括在彼此相对的侧面上具有平坦表面的管状颈部。 叶轮单元包括多个径向延伸的叶片和围绕颈部的圆形槽。 系统还包括固定在槽内的密封头组件和与密封头组件接合的密封座组件。 该系统还包括止推垫圈，该止推垫圈与密封座组件和保持环接合，固定环在颈部的一端固定到管状颈部。 止动环还以球窝类型布置接合止推垫圈。 该系统提供了一个单元化的密封，叶轮，推力系统，能够在组装泵单元之前进行预负荷测试和/或泄漏测试。

公开(公告)号：US07963526B2

公开(公告)日：2011-06-21

申请号：US11748744

申请日：2007-05-15

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： F16J15/32

CPC分类号： F16J15/3224 ,  F16J15/3232 ,  F16J15/324

摘要： A radial shaft seal is provided for accommodating large radial offset of the shaft relative to a housing. The seal includes an annular retainer insert provided for engaging the seal to a fixed housing. An annular elastomeric seal body is molded to the retainer insert and includes a flexible axially extending portion extending from an inner surface of the retainer insert. A seal portion extends from a radially inward end of the flexible portion and includes first and second seal lips and an elastomeric bearing surface disposed between the first and second sealing lips. The bearing surface includes a plurality of raised pads adapted to engage the shaft. The pads each include a rounded edge on lateral sides thereof for encouraging the creation of a lubricating film between the pads and shaft. The pads are lubricated by a lubricant disposed in a lubricant chamber disposed between the first and second seal lips.

摘要翻译： 提供径向轴密封件用于容纳轴相对于壳体的大的径向偏移。 密封件包括设置用于将密封件接合到固定壳体的环形保持器插入件。 环形弹性体密封体被模制到保持器插入件上并且包括从保持器插入件的内表面延伸的柔性轴向延伸部分。 密封部分从柔性部分的径向向内的端部延伸并且包括第一和第二密封唇缘以及设置在第一和第二密封唇之间的弹性体轴承表面。 轴承表面包括适于接合轴的多个凸起垫。 垫片在其侧面上包括圆形边缘，以鼓励在垫和轴之间产生润滑膜。 衬垫由设置在设置在第一和第二密封唇之间的润滑剂室中的润滑剂润滑。

公开(公告)号：US07845740B2

公开(公告)日：2010-12-07

申请号：US12490600

申请日：2009-06-24

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： B62D55/088

CPC分类号： F16G13/07 ,  B62D55/092 ,  B62D55/21 ,  F16J15/3452 ,  F16J15/348

摘要： A unitized seal assembly is provided for installation between linkages of a chain drive designed for tracked vehicles. The seal assembly facilitates field preventative maintenance on the drive chain by utilizing an integral spacer that holds the critical sealing surfaces together at all times, and has a seal head that can be easily removed from the outer link bore of a chain link. Removal of the seal head from the outer link bore causes as-installed clearance passageways between the seal head and seat portions and the spacer to forcefully close and prevent abrasive particles from getting inside the seal and reaching the interior interface junction of the dynamic sealing surfaces during seal maintenance. The seal assembly also includes additional sealing features that provide improved performance.

摘要翻译： 提供了一个组合式密封组件，用于安装在为履带式车辆设计的链条驱动器的连杆之间。 密封组件通过利用将关键密封表面始终保持在一起的整体间隔件来促进驱动链上的现场预防性维护，并且具有可以容易地从链节的外链节孔移除的密封头。 密封头从外部连接孔的移除导致密封头和阀座部分之间的安装间隙通道和间隔件强制关闭，并且防止磨料颗粒进入密封件内并到达动态密封表面的内部界面接合处 密封维修。 密封组件还包括提供改进性能的附加密封特征。

公开(公告)号：US07673479B2

公开(公告)日：2010-03-09

申请号：US11457990

申请日：2006-07-17

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： B08B3/12 ,  F16J15/34 ,  D06F13/00 ,  D06F25/00 ,  F16J15/36

CPC分类号： F16J15/3472 ,  F16J15/36 ,  F16J15/38

摘要： A seal assembly includes a ring component for coupling a seat component to a shaft. The ring component includes a first portion having an annular shape and configured to have a sealed engagement with the shaft. The ring component also includes a second portion having a flange extending radially outwardly therefrom. The ring component is configured to receive the seat component between the flange and the first portion and thus form a seal seat assembly. The flange is configured to mechanically lock the seat component relative to the ring component when the seal seat assembly is disposed on the shaft.

摘要翻译： 密封组件包括用于将座椅部件联接到轴的环部件。 环形部件包括具有环形形状并被构造成与轴部密封接合的第一部分。 环组件还包括具有从其径向向外延伸的凸缘的第二部分。 环形部件构造成在凸缘和第一部分之间接收座椅部件，从而形成密封座组件。 凸缘被配置为当密封座组件设置在轴上时相对于环部件机械地锁定座椅部件。

公开(公告)号：US20090261650A1

公开(公告)日：2009-10-22

申请号：US12490600

申请日：2009-06-24

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： B62D55/088

CPC分类号： F16G13/07 ,  B62D55/092 ,  B62D55/21 ,  F16J15/3452 ,  F16J15/348

摘要： A unitized seal assembly is provided for installation between linkages of a chain drive designed for tracked vehicles. The seal assembly facilitates field preventative maintenance on the drive chain by utilizing an integral spacer that holds the critical sealing surfaces together at all times, and has a seal head that can be easily removed from the outer link bore of a chain link. Removal of the seal head from the outer link bore causes as-installed clearance passageways between the seal head and seat portions and the spacer to forcefully close and prevent abrasive particles from getting inside the seal and reaching the interior interface junction of the dynamic sealing surfaces during seal maintenance. The seal assembly also includes additional sealing features that provide improved performance.

摘要翻译： 提供了一个组合式密封组件，用于安装在为履带式车辆设计的链条驱动器的连杆之间。 密封组件通过利用将关键密封表面始终保持在一起的整体间隔件来促进驱动链上的现场预防性维护，并且具有可以容易地从链节的外链节孔移除的密封头。 密封头从外部连接孔的移除导致密封头和阀座部分之间的安装间隙通道和间隔件强制关闭，并且防止磨料颗粒进入密封件内并到达动态密封表面的内部界面接合处 密封维修。 密封组件还包括提供改进性能的附加密封特征。

公开(公告)号：US6113106A

公开(公告)日：2000-09-05

申请号：US963496

申请日：1997-11-03

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： F04D29/12 ,  F16J15/36 ,  F16J15/16

CPC分类号： F16J15/36 ,  F04D29/126

摘要： A mechanical face seal for use in a pump. The mechanical face seal including a seal head assembly, a seal seat assembly opposite and in contact with the seal head assembly. The seal head assembly including a gimbal ring engaging a first and second pair of gimbal pads. The first pair of gimbal pads is integral with an impeller insert and the second pair of gimbal pads is integral with a seal washer. The gimbal ring will continually adjust to misalignments of the pump and the seal components when hydraulic forces overcome the spring load of the seal head assembly and clamps the gimbal ring between the two pair of gimbal pads.

摘要翻译： 用于泵的机械面密封件。 机械表面密封件包括密封头组件，与密封头组件相对并接触的密封座组件。 密封头组件包括接合第一和第二对万向节垫的万向环。 第一对万向节垫与叶轮插入件成一体，第二对万向节垫与密封垫片成一体。 当液压力克服密封头组件的弹簧载荷并将万向节环夹在两对万向节垫之间时，万向节环将不断地适应泵和密封部件的不对准。

公开(公告)号：US5123660A

公开(公告)日：1992-06-23

申请号：US585651

申请日：1990-09-20

申请人： John C. Dahlheimer ,  Robert E. Doucette ,  Kevin F. Ice

发明人： John C. Dahlheimer ,  Robert E. Doucette ,  Kevin F. Ice

IPC分类号： F16J15/34 ,  F16J15/36

CPC分类号： F16J15/36

摘要： A rotary mechanical face seal utilizes a pair of cup-shaped inserts to closely support the contoured diaphragm of an elastomeric boot whereby the diaphragm does not actively undergo deflection to assist in sealing moving interfaces, even under fluctuations in pressure differentials acting on the diaphragm. A tubular insert is molded into the boot to assure that a fluid tight sealed securement is achieved with a bore to be sealed and accurately position components of the assembly so as to maintain the rotary sliding faces in full contact and compensate for axial tolerances of the components. A washer-shaped insert having raised lands raised from one of its axial faces can be embedded in a seal washer to ensure dimensional stability of a load bearing member and extend service life, the other axial face possibly being used as a portion of the sliding sealing faces.

摘要翻译： 旋转机械表面密封件利用一对杯形插入件来紧密地支撑弹性体衬套的轮廓隔膜，由此即使在作用在隔膜上的压差的波动下，膜片也不会主动地经历偏转以帮助密封移动界面。 将管状插入件模制到护罩中以确保通过待密封的孔实现流体密封的固定，并精确地定位组件的部件，以便使旋转滑动面保持完全接触并补偿部件的轴向公差 。 具有从其轴向面之一凸起的凸起的垫圈形插入件可嵌入密封垫圈中以确保承载构件的尺寸稳定性并延长使用寿命，另一个轴向面可能用作滑动密封的一部分 面孔

公开(公告)号：US07887062B2

公开(公告)日：2011-02-15

申请号：US11736639

申请日：2007-04-18

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： F16J15/32

CPC分类号： F16J15/3224 ,  F16J15/324 ,  F16J15/3244 ,  F16J15/3276

摘要： A radial shaft seal is provided for accommodating large radial offset of the shaft relative to a housing. The seal includes an annular retainer insert provided for engaging the seal to a fixed housing. An annular elastomeric seal body is molded to the retainer insert and includes flexible axially extending portion extending from an inner surface of the retainer insert. A seal portion extends axially from a radially inward end of the radially inwardly extending portion and includes a seal lip with a garter spring disposed radially outward of the sealing lip and an elastomeric bearing surface disposed adjacent to the sealing lip. The bearing surface includes a plurality of raised pads adapted to engage the shaft. The pads each include a rounded edge on lateral sides thereof for encouraging the creation of a lubricating film between the pads and shaft. The pads are lubricated by direct exposure to the fluid being sealed.

摘要翻译： 提供径向轴密封件用于容纳轴相对于壳体的大的径向偏移。 密封件包括设置用于将密封件接合到固定壳体的环形保持器插入件。 环形弹性密封体被模制到保持器插入件上，并且包括从保持器插入件的内表面延伸的柔性轴向延伸部分。 密封部分从径向向内延伸部分的径向向内的端部轴向延伸并且包括密封唇缘，该密封唇缘具有设置在密封唇的径向外侧的弹簧支撑表面和邻近密封唇设置的弹性支承表面。 轴承表面包括适于接合轴的多个凸起垫。 垫片在其侧面上包括圆形边缘，以鼓励在垫和轴之间产生润滑膜。 通过直接暴露于待密封的流体来润滑垫片。

公开(公告)号：US07431304B2

公开(公告)日：2008-10-07

申请号：US11282079

申请日：2005-11-17

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： F16J15/34 ,  F16J15/38

CPC分类号： F16J15/348 ,  F16J15/3476 ,  F16J15/36

摘要： A face seal is provided with a constriction ring around a rubber boot that constricts the normal outward bulging of the flex section of the rubber boot as it folds and tries to roll forward over itself during axial deflection. The constriction caused by the constriction ring provides for increased frictional hysteresis during compression and decompression of the boot flex section. This increased hysteresis increases the dampening capacity of the seal design and, therefore, reduces undesired vibrations and seal noise generation.

摘要翻译： 面密封件设置有围绕橡胶护套的收缩环，其收缩橡胶靴的弯曲部分的法向向外膨胀，并且在轴向偏转期间试图在其自身上向前滚动。 由收缩环引起的收缩提供了在引导柔性部分的压缩和解压缩期间增加的摩擦滞后。 这种增加的滞后增加了密封设计的阻尼能力，因此减少了不期望的振动和密封噪声产生。

公开(公告)号：US06896481B2

公开(公告)日：2005-05-24

申请号：US10395482

申请日：2003-03-24

申请人： John C. Dahlheimer

发明人： John C. Dahlheimer

IPC分类号： A47L15/42 ,  D06F39/08 ,  F04D29/42 ,  F04D29/62 ,  F03B11/02

CPC分类号： F04D29/628 ,  A47L15/4225 ,  D06F39/085 ,  F04D29/426

摘要： A water pump includes a first enclosure having a center portion that is moveable from a normal condition to a deflected condition and a second enclosure adjacent to the first to form an internal cavity. An impeller is disposed within the internal cavity. A tubular shaft portion extends from the impeller through a bore in the second enclosure. The tubular shaft portion is press fit to a motor shaft which rotates the impeller within the internal cavity. As the motor shaft is inserted into the tubular portion of the impeller, a tool is used to press on and axially deflect the center portion of the first enclosure. Thus, the center portion of the first enclosure contacts the impeller and provides an opposing force on the impeller while the motor shaft is inserted into the tubular portion of the impeller. When the motor shaft is press-fit sufficiently into the tubular portion, the tool is removed. When the tool is removed, a convoluted portion around a center portion of the first enclosure biases the center portion to move axially away from the impeller and form a clearance gap between the impeller and the first enclosure. Several optional friction engagement members may be used to connect the motor shaft to the tubular shaft.

摘要翻译： 水泵包括具有可从正常状态移动到偏转状态的中心部分的第一外壳和邻近第一外壳的第二外壳以形成内部空腔。 叶轮设置在内腔内。 管状轴部分从叶轮延伸穿过第二壳体中的孔。 管状轴部分压配合到在内腔内旋转叶轮的马达轴。 当马达轴插入到叶轮的管状部分中时，使用工具将第一外壳的中心部分按压并且轴向偏转。 因此，第一外壳的中心部分接触叶轮并在叶轮上提供相反的力，同时马达轴插入到叶轮的管状部分中。 当马达轴被压配合到管状部分中时，该工具被移除。 当工具被移除时，围绕第一外壳的中心部分的回旋部分偏压中心部分以使轴向远离叶轮移动，并在叶轮和第一外壳之间形成间隙。 可以使用几个可选的摩擦接合构件将马达轴连接到管状轴。