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    • 5. 发明授权
    • Seal for rotating shaft
    • 旋转轴密封
    • US5860656A
    • 1999-01-19
    • US944016
    • 1997-09-30
    • Hiromi ObataKenichi TakedaAtsushi Hosokawa
    • Hiromi ObataKenichi TakedaAtsushi Hosokawa
    • F16J15/32
    • F16J15/324F16J15/3232F16J15/3252
    • When a rotating shaft is at a standstill, a first sealing lip of a first sealing element comes elastically into contact with the shaft, thereby preventing a fluid leakage. Annular grooves are formed on the inner peripheral surface of a second sealing lip of a second sealing element so that a wide contact surface pressure can be obtained between each two adjacent grooves. Accordingly, a fluid leaked from the first sealing element is prevented from leaking to the low-pressure side by means of the second sealing lip. When the rotating shaft is rotating, moreover, the fluid from a fluid chamber is allowed to permeate the gap between the outer peripheral surface of the shaft and the inner peripheral surface of the first sealing lip. Thus, the inner peripheral surface of the first sealing lip is lubricated by means of the fluid, so that the first sealing lip can be prevented from wearing or heating.
    • 当旋转轴处于静止状态时,第一密封元件的第一密封唇弹性地与轴接触,从而防止流体泄漏。 环形槽形成在第二密封元件的第二密封唇的内周面上,从而可以在两个相邻的槽之间获得宽的接触表面压力。 因此,通过第二密封唇防止从第一密封元件泄漏的流体泄漏到低压侧。 此外,当旋转轴旋转时,允许来自流体室的流体渗透到轴的外周表面和第一密封唇的内周表面之间的间隙。 因此,第一密封唇的内周面通过流体润滑,从而可以防止第一密封唇的磨损或加热。
    • 6. 发明申请
    • Seal
    • 密封
    • US20060066061A1
    • 2006-03-30
    • US11235180
    • 2005-09-27
    • Atsushi Hosokawa
    • Atsushi Hosokawa
    • F16J15/50
    • F16J15/127F16J15/024
    • A seal rubber 3 is placed in a first peripheral groove 2 formed on one main surface 1A of an approximately flat-plate-shaped metal body 1, the second peripheral groove 4 and multiple communicating holes 5 to communicate between the second peripheral groove 4 and the first peripheral groove 2 are formed on the other main surface 1B of the metal body 1, and a retaining rubber 6 disposed in the second peripheral groove 4, a seal rubber 3, and a bridge rubber 7 disposed in the communicating hole 5 are integrated. The first peripheral groove 2 is made to be a dovetail groove, the second peripheral groove 4 is made to have an inner surface inclined to reduce the groove width from a groove opening side to a groove bottom surface side, and the groove width D4-2 of the groove bottom surface and the inner diameter D3 of the communicating hole 5 are made to be substantially the same. As a result, release or breakage of the seal rubber does not occur during opening or closing of the two members, stable seal performance is achieved, and even when a large seal is to be made, the seal rubber can be attached easily.
    • 将密封橡胶3放置在形成在大致平板状金属体1的一个主面1A上的第一周缘槽2,第二周缘槽4和多个连通孔5中,在第二周向槽4和 第一周边槽2形成在金属体1的另一个主表面1B上,并且设置在第二周边槽4中的保持橡胶6,密封橡胶3和设置在连通孔5中的桥接橡胶7 集成。 第一周缘槽2形成为燕尾槽,第二周缘槽4具有倾斜的内表面,以减小从槽开口侧到槽底面侧的槽宽度,并且槽宽度D 4〜 使沟槽底面的2个和连通孔5的内径D 3大致相同。 结果,在两个部件的打开或关闭期间不会发生密封橡胶的释放或破裂,实现了稳定的密封性能,并且即使当要进行大的密封时,也能够容易地安装密封橡胶。
    • 10. 发明授权
    • Seal
    • 密封
    • US07311311B2
    • 2007-12-25
    • US11235180
    • 2005-09-27
    • Atsushi Hosokawa
    • Atsushi Hosokawa
    • F16J15/02
    • F16J15/127F16J15/024
    • A seal rubber 3 is placed in a first peripheral groove 2 formed in one main surface 1A of an approximately flat-plate-shaped metal body 1. A second peripheral groove 4 and multiple communicating holes 5 to communicate between the second peripheral groove 4 and the first peripheral groove 2 are formed in the other main surface 1B of the metal body 1. A retaining rubber 6 disposed in the second peripheral groove 4, the seal rubber 3, and a bridge rubber 7 disposed in the communicating hole 5 are integrated. The first peripheral groove 2 is made to be a dovetail groove, the second peripheral groove 4 is made to have an inner surface inclined to reduce the groove width from a groove opening side to a groove bottom surface side, and the groove width D4-2 of the groove bottom surface and the inner diameter D3 of the communicating hole 5 are made to be substantially the same. As a result, release or breakage of the seal rubber does not occur during opening or closing of the two members, stable seal performance is achieved, and even when a large seal is to be made, the seal rubber can be attached easily.
    • 将密封橡胶3放置在大致平板状的金属体1的一个主面1A上形成的第一周缘槽2内。 在金属体1的另一个主表面1B中形成有第二周向槽4和在第二周向槽4和第一周向槽2之间连通的多个连通孔5。 设置在第二周边槽4中的保持橡胶6,密封橡胶3和设置在连通孔5中的桥接橡胶7一体化。 第一周缘槽2形成为燕尾槽,第二周缘槽4具有倾斜的内表面,以减小从槽开口侧到槽底面侧的槽宽度,并且槽宽度D 4〜 使沟槽底面的2个和连通孔5的内径D 3大致相同。 结果,在两个部件的打开或关闭期间不会发生密封橡胶的释放或破裂,实现了稳定的密封性能,并且即使当要进行大的密封时,也能够容易地安装密封橡胶。