Reducing deposits and smoke from jet fuels
    58.
    发明授权
    Reducing deposits and smoke from jet fuels 失效
    从喷气燃料中减少沉积物和烟雾

    公开(公告)号:US3891401A

    公开(公告)日:1975-06-24

    申请号:US11986571

    申请日:1971-03-01

    Abstract: Smoke and ash deposit formation in commercial and military jet engines and power plants is minimized by inclusion in the fuel of an additive comprising oil-soluble salts of a transition metal, such as manganese or iron, and an alkaline earth metal. A preferred additive comprises methylcyclopentadienyl manganese tricarbonyl and calcium alkylphenol sulfide in amounts to provide a manganese/calcium weight ratio about 5/1. The calcium salt may be in an alkaline form derived by over-basing with calcium oxide and carbon dioxide.

    Abstract translation: 在商业和军用喷气发动机和动力装置中的烟和灰沉积物形成通过包含在包含过渡金属如锰或铁的油溶性盐和碱土金属的添加剂的燃料中而被最小化。 优选的添加剂包括甲基环戊二烯基三羰基锰和烷基酚硫化钙,其量提供约5/1的锰/钙重量比。 钙盐可以是通过用氧化钙和二氧化碳过碱性得到的碱性形式。

    Metal seat butterfly valve
    59.
    发明授权
    Metal seat butterfly valve 失效
    金属座椅蝶阀

    公开(公告)号:US3834663A

    公开(公告)日:1974-09-10

    申请号:US20633771

    申请日:1971-12-09

    Applicant: JAMESBURY CORP

    Inventor: DONNELLY J

    Abstract: Disclosed is a butterfly valve particularly adapted for service with high pressure and high temperature fluids, and fluids containing suspended solids such as slurries. A butterfly valve is provided with a metal seat ring having a curved metal lip that is adapted to contact the peripheral surface of the valve disc. The metal seat has a configuration that enables fluid pressure from one side of the valve to enhance the sealing effectiveness of the valve. The lip of the seat is positioned to provide an interference fit with the periphery of the disc when the valve is closed, so that the valve is capable of sealing fluid from either side of the disc over a portion of the pressure rating of the valve.

    Abstract translation: 公开了一种特别适用于高压和高温流体以及含有悬浮固体如浆料的流体的蝶形阀。 蝶阀具有金属座圈,该金属座圈具有弯曲的金属唇缘,该弯曲的金属唇缘适于与阀盘的周面相接触。 金属座具有能够使阀的一侧的流体压力提高阀的密封效果的结构。 座椅的唇部被定位成当阀门关闭时与盘的周边形成过盈配合,使得阀能够在阀的压力等级的一部分上从盘的任一侧密封流体。

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