Resin-Made Cage and Bearing
    1.
    发明申请
    Resin-Made Cage and Bearing 有权
    树脂制的保持架和轴承

    公开(公告)号:US20090074339A1

    公开(公告)日:2009-03-19

    申请号:US12224922

    申请日:2007-03-07

    IPC分类号: F16C25/08 F16C33/44

    摘要: It is an object of the present invention to provide a cage that can be used in a cryogenic-temperature environment or a vacuum without providing the cage with a complicated construction and without performing special treatment and a bearing using the cage. A cage made of resin has an annular main body having a plurality of pocket portions radially penetrating the main body; and a plurality of pocket members, provided on the annular main body, which hold rolling elements of a rolling bearing. The main body is a molding of a first resin composition consisting of a first resin and a solid lubricant mixed therewith; and at least a rolling element-retaining surface of each of the pocket members is made of a second resin composition containing fluorocarbon resin as a main component thereof. The molding of the first resin composition has a tensile strength of not less than 30 MPa and a heat-resistant temperature of not less than 200° C. The second resin composition is a fluorocarbon resin composition. The rolling bearing is constructed of an inner ring, an outer ring, the rolling elements interposed between the inner ring and the outer ring, and the cage. The rolling bearing is used for a turbopump, of a rocket engine, which uses a liquid fuel.

    摘要翻译: 本发明的一个目的是提供一种可以在低温环境或真空中使用的保持架,而不会使笼子具有复杂的构造并且不进行特殊处理和使用保持架的轴承。 由树脂构成的保持架具有环状主体,该主体具有径向穿透主体的多个口袋部; 以及设置在保持滚动轴承的滚动体的环状主体上的多个袋状部件。 主体是由第一树脂和与其混合的固体润滑剂组成的第一树脂组合物的模制品; 并且每个袋构件的至少一个滚动元件保持表面由包含氟碳树脂作为其主要成分的第二树脂组合物制成。 第一树脂组合物的成型的拉伸强度为30MPa以上,耐热温度为200℃以上。第二树脂组合物为碳氟树脂组合物。 滚动轴承由内圈,外圈,插入在内圈和外圈之间的滚动元件和保持架构成。 滚动轴承用于使用液体燃料的火箭发动机的涡轮泵。

    Process for producing optical fiber composite insulators
    2.
    发明授权
    Process for producing optical fiber composite insulators 失效
    生产光纤复合绝缘子的工艺

    公开(公告)号:US5538574A

    公开(公告)日:1996-07-23

    申请号:US177549

    申请日:1994-01-05

    摘要: A method is disclosed for producing an optical fiber composite insulator, including the steps of: preliminarily heating the insulator body in its entirety at not less than 70.degree. C., then filling said organic insulating material into the through hole while said at least one optical fiber is being stretched straight, and then curing the organic insulating material by heating in a temperature range of not less than 75.degree. C. but not more than 90.degree. C. while at least one optical fiber is kept stretched straight.

    摘要翻译: 公开了一种用于制造光纤复合绝缘体的方法,包括以下步骤:将绝缘体整体预先加热至不低于70℃,然后将所述有机绝缘材料填充到通孔中,同时所述至少一个光学 纤维被拉伸直,然后在不低于75℃但不超过90℃的温度范围内加热固化有机绝缘材料,同时保持至少一根光纤被拉直。

    Optical fiber built-in type composite insulator and method of producing
the same
    3.
    发明授权
    Optical fiber built-in type composite insulator and method of producing the same 失效
    光纤建筑型复合绝缘子及其制造方法

    公开(公告)号:US5127083A

    公开(公告)日:1992-06-30

    申请号:US669006

    申请日:1991-03-13

    CPC分类号: G02B6/442

    摘要: An excellent optical fiber built-in type composite insulator is provided having a reliable and durable sealing portion in a central axis penetration hole of the insulator for sealing the optical fiber in a very quick, simple and economical way with reduced members, devices and production steps. The composite insulator includes a ceramic insulator having a penetration hole in its central axis portion, at least one optical fiber inserted in the penetration hole, and sealing portions made of inorganic glass arranged at both ends of the penetration hole for sealing the optical fiber therein, and comprises recessed portions of the ceramic insulator arranged around the ends of the penetration hole, and heat generating elements arranged in the recessed portions for heating and melting the inorganic glass to form the sealing portions at the both ends of the penetration hole. The present invention provides also a method of producing the composite insulator.

    Lightning arrester insulator
    5.
    发明授权
    Lightning arrester insulator 失效
    避雷器绝缘子

    公开(公告)号:US4571660A

    公开(公告)日:1986-02-18

    申请号:US528032

    申请日:1983-08-31

    CPC分类号: H01C7/12 H01T4/02

    摘要: A lightning arrester insulator in which a voltage non-linear resistor having a major constituent of zinc oxide is integrally fixed in a longitudinal bore in the insulator with a layer of an inorganic adhesive agent which is interposed between an outer surface of the resistor and an inner wall surface of the insulator defining the longitudinal bore. A contact angle of the adhesive agent layer defined by each end face thereof and an associated end part of the inner wall surface is held within a range of 10 to 60 degrees. To establish the contact angle, at least one of the end face of the adhesive agent layer and the associated end part of the inner wall surface of the insulator is inclined with respect to the longitudinal centerline of the longitudinal bore. Each end surface of the voltage non-linear resistor is spaced from the corresponding end of the adhesive agent layer axially inwardly along the longitudinal centerline of the longitudinal bore.

    摘要翻译: 一种避雷器绝缘体,其中具有氧化锌主要成分的电压非线性电阻器一体地固定在绝缘体的纵向孔中,其中一层无机粘合剂介于电阻器的外表面和内部 绝缘体的壁表面限定纵向孔。 由其每个端面限定的粘合剂层和内壁表面的相关联的端部的接触角保持在10至60度的范围内。 为了建立接触角,粘合剂层的端面和绝缘体的内壁表面的相关联的端部中的至少一个相对于纵向孔的纵向中心线倾斜。 电压非线性电阻器的每个端表面沿着纵向孔的纵向中心线轴向向内与粘合剂层的相应端分隔开。

    Lightning arrestor insulator and method of producing the same
    7.
    发明授权
    Lightning arrestor insulator and method of producing the same 失效
    避雷器绝缘子及其制造方法

    公开(公告)号:US5012383A

    公开(公告)日:1991-04-30

    申请号:US561234

    申请日:1990-07-27

    IPC分类号: H01C7/12 H01T1/16

    CPC分类号: H01C7/12 H01T1/16

    摘要: An excellent lightning arrestor insulator is provided having a discharge gap portion and an arrestor ZnO element device both built in a body of the insulator, comprising projected discharge electrodes arranged in the inside of the insulator body, the discharge gap portion being formed of a heat resistant protrusion arranged in the inside of the insulator body and surrounding the discharge electrodes, and a pair of metal plates and/or electrically conductive ceramic plates sandwiching the protrusion from both sides thereof and electrically connected to the discharge electrodes, the pair of plates being joined and airtightly sealed to the protrusion via an inorganic glass. The arrestor ZnO element device has a highly reliable airtight fixing and sealing structure so that accidents in a power supply or distribution line at a normal working voltage can be substantially eliminated, and damages caused by hygromeration and lightnings can be noticeably decreased.

    Optical fiber built-in type composite insulator
    9.
    发明授权
    Optical fiber built-in type composite insulator 失效
    光纤内置型复合绝缘子

    公开(公告)号:US5138692A

    公开(公告)日:1992-08-11

    申请号:US672106

    申请日:1991-03-19

    IPC分类号: G02B6/46 G02B6/44 H01B17/00

    CPC分类号: G02B6/4417 G02B6/442

    摘要: An excellent optical fiber built-in type composite insulator of reduced damage rate in the producing operation and the handling operation thereof, reduced loss of initial light signal transmission and in a desired temperature range, and reduced trouble rate after thermal shock test, is provided. The optical fiber built-in type composite insulator of the present invention having a penetration hole in the central axis portion of the insulator, an optical fiber extending in the penetration hole, and an inorganic glass arranged at both end portions of the penetration hole for sealing the optical fiber therein, comprises protective tubes each having a bore of an inner diameter of substantially equal to the outer diameter of coating portion of the optical fiber to allow insertion of the coating portion of the optical fiber therethrough, each arranged in the penetration hole at such a position that a portion of a coating portion of the optical fiber and a portion of the coating-stripped portion of the optical fiber exist in each bore of the protective tube to protect the portions of the coating portion and the coating-stripped portion of the optical fiber in the both end portions of the penetration hole.