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    Low friction linear clearance seal
    1.
    发明授权
    Low friction linear clearance seal 失效
    低摩擦线性间隙密封

    公开(公告)号：US5822994A

    公开(公告)日：1998-10-20

    申请号：US795972

    申请日：1997-02-05

    申请人： Daniel James Belk ,  Thomas S. Donahoe ,  Arthur R. Nelson ,  Gary W. Van Court

    发明人： Daniel James Belk ,  Thomas S. Donahoe ,  Arthur R. Nelson ,  Gary W. Van Court

    IPC分类号： F02G1/00 ,  F02G1/053 ,  F25B9/14 ,  F25B9/00

    CPC分类号： F02G1/00 ,  F02G1/0535 ,  F25B9/14 ,  F25B2309/001

    摘要： This invention provides a low friction linear clearance seal for use in closed cycle cryogenic coolers. The clearance seal comprises a cylinder, a piston mounted within the cylinder for reciprocating movement and a self lubricating polymer liner bonded to the piston which forms an effective seal around the piston. The clearance seal improves the sealing capability between the piston and the cylinder and reduces heat generated by the motion of the piston along the cylinder wall. The clearance seal also improves the performance and reliability of the cryogenic cooler.

    摘要翻译： 本发明提供一种用于封闭循环低温冷却器的低摩擦线性间隙密封。 间隙密封件包括气缸，安装在气缸内用于往复运动的活塞和结合到活塞的自润滑聚合物衬套，其形成围绕活塞的有效密封。 间隙密封改善了活塞和气缸之间的密封能力，并减少了活塞沿气缸壁运动产生的热量。 间隙密封件还提高了低温冷却器的性能和可靠性。

    Machined Spring With Integral Retainer For Closed Cycle Cryogenic Coolers
    2.
    发明申请
    Machined Spring With Integral Retainer For Closed Cycle Cryogenic Coolers 有权
    用于闭式循环低温冷却器的集成保持器的加工弹簧

    公开(公告)号：US20080295523A1

    公开(公告)日：2008-12-04

    申请号：US11757034

    申请日：2007-06-01

    申请人： Lane Daniel Dicken ,  Arthur R. Nelson ,  Dennis Eugene Lund, JR. ,  Daniel James Belk

    发明人： Lane Daniel Dicken ,  Arthur R. Nelson ,  Dennis Eugene Lund, JR. ,  Daniel James Belk

    IPC分类号： F25B9/00

    CPC分类号： F25B9/14 ,  F16F1/125

    摘要： A retainer and spring with threaded end are machined from a single piece of material for threading to a piston in a closed cycle cryogenic cooler. Since the machined retainer and spring are a unitary part, they cannot rub against each other during operation of the piston which reduces debris generation. The spring is preferably formed as a double start helix which further increases axial stability and reduces side loading. The spring extends into an integrally formed, threaded end at the end thereof opposite the retainer. The spring is therefore solidly connected to its adjoining parts which greatly reduces tilting and off-axis movements inherent in the prior art, wound spring designs.

    摘要翻译： 具有螺纹端的保持器和弹簧由单片材料加工，用于在封闭循环低温冷却器中螺纹连接到活塞。 由于加工的保持器和弹簧是整体部件，所以在活塞运行期间它们不能彼此摩擦，这减少了碎片的产生。 该弹簧优选地形成为双起始螺旋，其进一步增加了轴向稳定性并降低了侧面载荷。 弹簧在与保持器相对的端部处延伸成一体形成的螺纹端。 因此，弹簧牢固地连接到其相邻的部件，这大大减少了现有技术的卷绕弹簧设计中固有的倾斜和离轴运动。

    Machined spring with integral retainer for closed cycle cryogenic coolers
    3.
    发明授权
    Machined spring with integral retainer for closed cycle cryogenic coolers 有权
    用于封闭循环低温冷却器的整体式保持器的加工弹簧

    公开(公告)号：US08127560B2

    公开(公告)日：2012-03-06

    申请号：US11757034

    申请日：2007-06-01

    申请人： Lane Daniel Dicken ,  Arthur R. Nelson ,  Dennis Eugene Lund, Jr. ,  Daniel James Belk

    发明人： Lane Daniel Dicken ,  Arthur R. Nelson ,  Dennis Eugene Lund, Jr. ,  Daniel James Belk

    IPC分类号： F25B9/00 ,  F01B29/10

    CPC分类号： F25B9/14 ,  F16F1/125

    摘要： A retainer and spring with threaded end are machined from a single piece of material for threading to a piston in a closed cycle cryogenic cooler. Since the machined retainer and spring are a unitary part, they cannot rub against each other during operation of the piston which reduces debris generation. The spring is preferably formed as a double start helix which further increases axial stability and reduces side loading. The spring extends into an integrally formed, threaded end at the end thereof opposite the retainer.

    摘要翻译： 具有螺纹端的保持器和弹簧由单片材料加工，用于在封闭循环低温冷却器中螺纹连接到活塞。 由于加工的保持器和弹簧是整体部件，所以在活塞运行期间它们不能彼此摩擦，这减少了碎片的产生。 该弹簧优选地形成为双起始螺旋，其进一步增加了轴向稳定性并降低了侧面载荷。 弹簧在与保持器相对的端部处延伸成一体形成的螺纹端。