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    • 2. 发明公开
    • Bleed screw for hydraulic systems
    • Gewindestopfen zumEntlüfteneines液压系统。
    • EP0094459A1
    • 1983-11-23
    • EP82302502.8
    • 1982-05-17
    • DEERE & COMPANY
    • Rödel, Werner
    • F16L55/10F16K24/04B60T11/30F24D19/08
    • F15B21/044B60T11/30F16K24/04F16L55/1108F24D19/086
    • The screw has a threaded body (10), a plug tip (11) with a sealing surface (11b) cooperating with a seat in a threaded hole in a hydraulic component fitted with the bleed screw. A vent passage (14, 15) opens behind the surface (11b) and allows hydraulic fluid to be bled out when the screw is slackened off the seat by a wrench applied to a hexagonal head (12) which is provided with a nipple (13) to receive a piece of rubber tubing carrying off the bleed fluid. In order to prevent simultaneous seepage past the screw threads, the threaded portion (10) is provided with an annular groove (16) fitted with an O-ring seal (17).
    • 螺杆具有螺纹体(10),具有密封表面(11b)的螺纹体(11),其与安装有排放螺杆的液压部件中的螺纹孔中的座部配合。 当螺钉通过施加到六边形头部(12)上的扳手松开螺钉而使排出通道(14,15)在表面(11b)后方打开,并且允许液压流体流出,液压流体设置有乳头(13) )接收一块橡胶管,以承载出血液。 为了防止同时渗出螺纹,螺纹部分(10)设置有装配有O形密封圈(17)的环形槽(16)。