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    Metering valve
    1.
    发明授权
    Metering valve 失效
    计量阀

    公开(公告)号：US3675892A

    公开(公告)日：1972-07-11

    申请号：US3675892D

    申请日：1970-11-30

    Applicant: CONTROLS CO OF AMERICA

    Inventor： BIERMANN WILLIAM A

    IPC: F16K1/46 ,  F16K47/04

    CPC classification number: F16K1/46

    Abstract: The tubular metering stem is closely guided in the sleeve pressed into the bushing. The upper end of the guide sleeve serves as the valve seat. The stem is provided with a groove which receives the washer as it is coined in a fixture to flow the washer metal into the groove. The spacing between the washer and the corner of the groove below the washer is inadequate to receive the O-ring in a normal manner. Therefore, the corner bites into the O-ring forcing the O-ring against the washer and the bottom of the groove to insure against leakage between the ring and the stem or the washer. The spacing between the O-ring and the valve seat controls the low flow rate as the stem rises. Above low flow the rate is determined by the stem rise and the characteristics of the metering slot. Full shutoff is insured when the O-ring seats on the valve seat.

    Abstract translation: 管状计量杆在被压入衬套中的套筒中被紧密地引导。 导向套筒的上端用作阀座。 杆设置有凹槽，当凹槽被固定在夹具中时，该凹槽接收垫圈以将垫圈金属流入槽中。 垫圈与垫圈下方的槽角之间的间距不足以以正常的方式接收O形圈。 因此，拐角咬入O形环，迫使O形环抵靠垫圈和槽的底部，以确保环与杆或垫圈之间的泄漏。 O形圈和阀座之间的间距控制了阀杆上升时的低流量。 在低流量下，速率由阀杆上升和计量槽的特性决定。 当O形圈座在阀座上时，全开关保险。

    Tip for valve member and method of assembling same
    5.
    发明授权
    Tip for valve member and method of assembling same 失效
    阀门构件提示及组装方法

    公开(公告)号：US3625245A

    公开(公告)日：1971-12-07

    申请号：US3625245D

    申请日：1969-11-13

    Applicant: CONTROLS CO OF AMERICA

    Inventor： BIERMANN WILLIAM A

    IPC: F16K1/36 ,  F16K1/46 ,  F16K31/26 ,  G05D9/02

    CPC classification number: G05D9/02 ,  F16K1/36 ,  F16K1/46 ,  F16K31/26 ,  Y10T137/7342 ,  Y10T137/7439

    Abstract: The needle valve stem of a float-controlled valve is provided with a tip made of resilient material such as a fluoroelastomer. The end of the valve stem includes a cylindrical bore and the resilient tip has a cylindrical portion disposed in that bore which has a relaxed diameter greater than the diameter of the bore. The tip is inserted in the bore by stretching its cylindrical portion axially to reduce the diameter of the cylindrical portion. Once in the bore, the stretching force is released whereupon the tip tends to return to its relaxed state and in doing so creates an inherent bias which acts against the bore walls to hold the tip on the valve stem. The tip includes an annular, convex in transverse cross section projection which engages an unobstructed surface surrounding the valve orifice through which flow occurs. The tip closes the orifice to flow and does so without protruding into the orifice.

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