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    • 9. 发明授权
    • Seal for gas springs and the like
    • 气弹簧等的密封
    • US5921556A
    • 1999-07-13
    • US730225
    • 1996-10-15
    • Walter Douglas BaumanJames B. ChamberlinJack R. RoachMark S. Jeffries
    • Walter Douglas BaumanJames B. ChamberlinJack R. RoachMark S. Jeffries
    • F16F9/02F16F9/36F16J15/16F16J15/32F16J15/56
    • F16F9/362F16F9/0218F16F9/36F16J15/3236F16J15/56
    • A seal that is particularly suitable for use in a gas spring and other high pressure hydraulic and pneumatic sealing applications and that minimizes the leakage of relatively high pressure gas and lubricating oil from the rod end of the gas spring or the other applications. The generally annular seal body includes radially inwardly and outwardly facing surfaces and non-concave axial facing surfaces. Lobes for sealing, wiping and directing enhanced forces project radially beyond the planes of the radially inwardly and outwardly facing surfaces. The seal also includes a wiper insert that has a parabolic shaped radially outwardly facing surface and a radially inwardly facing surface, and that is secured in a recess adjacent to the front corner of the seal body's radially inwardly facing surface. When the seal body is compressed for use, the compression induced stresses in the seal body result in the formation of an effective gas and oil seal because, in part, one of the corners of the insert's radially inwardly facing surface is forced against the adjacent surface of the piston rod.
    • 一种特别适用于气弹簧和其他高压液压和气动密封应用的密封件,其最大限度地减少了来自气弹簧或其它应用的杆端的相对高压气体和润滑油的泄漏。 大致环形的密封体包括径向向内和向外的表面和非凹入的轴向面对表面。 用于密封,擦拭和引导增强力的凸耳径向伸出超出径向向内和向外表面的平面。 密封件还包括具有抛物面形状的径向向外表面和径向向内表面的擦拭器插入件,并且其固定在邻近密封体径向向内表面的前角的凹部中。 当密封体被压缩使用时,密封体中的压缩引起的应力导致形成有效的气体和油封,因为部分地,插入件径向向内的表面的角部之一被迫抵靠相邻的表面 的活塞杆。